/////////////////////////////////////////////////////////////////////////////
-// Name: dcclient.cpp
-// Purpose:
+// Name: src/gtk/dcclient.cpp
+// Purpose: wxWindowDCImpl implementation
// Author: Robert Roebling
-// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Copyright: (c) 1998 Robert Roebling, Chris Breeze
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "dcclient.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#include "wx/gtk/dcclient.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/window.h"
+ #include "wx/log.h"
+ #include "wx/dcmemory.h"
+ #include "wx/math.h"
+ #include "wx/image.h"
+ #include "wx/module.h"
#endif
-#include "wx/dcclient.h"
-#include "wx/dcmemory.h"
+#include "wx/fontutil.h"
+
+#include "wx/gtk/private.h"
+#include "wx/gtk/private/object.h"
+
+//-----------------------------------------------------------------------------
+// local defines
+//-----------------------------------------------------------------------------
+
+#define XLOG2DEV(x) LogicalToDeviceX(x)
+#define XLOG2DEVREL(x) LogicalToDeviceXRel(x)
+#define YLOG2DEV(y) LogicalToDeviceY(y)
+#define YLOG2DEVREL(y) LogicalToDeviceYRel(y)
+
+#define USE_PAINT_REGION 1
//-----------------------------------------------------------------------------
// local data
#include "horiz.xbm"
#include "verti.xbm"
#include "cross.xbm"
-#define num_hatches 6
-static GdkPixmap *hatches[num_hatches];
-static GdkPixmap **hatch_bitmap = NULL;
+static GdkPixmap* hatches[wxBRUSHSTYLE_LAST_HATCH - wxBRUSHSTYLE_FIRST_HATCH + 1];
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
-#define RAD2DEG 57.2957795131
+static const double RAD2DEG = 180.0 / M_PI;
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+static inline double dmax(double a, double b) { return a > b ? a : b; }
+static inline double dmin(double a, double b) { return a < b ? a : b; }
+
+static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
+
+static GdkPixmap* GetHatch(int style)
+{
+ wxASSERT(style >= wxBRUSHSTYLE_FIRST_HATCH && style <= wxBRUSHSTYLE_LAST_HATCH);
+ const int i = style - wxBRUSHSTYLE_FIRST_HATCH;
+ if (hatches[i] == NULL)
+ {
+ // This macro creates a bitmap from an XBM file included above. Notice
+ // the need for the cast because gdk_bitmap_create_from_data() doesn't
+ // accept unsigned data but the arrays in XBM need to be unsigned to
+ // avoid warnings (and even errors in C+0x mode) from g++.
+#define CREATE_FROM_XBM_DATA(name) \
+ gdk_bitmap_create_from_data \
+ ( \
+ NULL, \
+ reinterpret_cast<gchar *>(name ## _bits), \
+ name ## _width, \
+ name ## _height \
+ )
+
+ switch (style)
+ {
+ case wxBRUSHSTYLE_BDIAGONAL_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(bdiag);
+ break;
+ case wxBRUSHSTYLE_CROSSDIAG_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(cdiag);
+ break;
+ case wxBRUSHSTYLE_CROSS_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(cross);
+ break;
+ case wxBRUSHSTYLE_FDIAGONAL_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(fdiag);
+ break;
+ case wxBRUSHSTYLE_HORIZONTAL_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(horiz);
+ break;
+ case wxBRUSHSTYLE_VERTICAL_HATCH:
+ hatches[i] = CREATE_FROM_XBM_DATA(verti);
+ break;
+ }
+
+#undef CREATE_FROM_XBM_DATA
+ }
+ return hatches[i];
+}
//-----------------------------------------------------------------------------
-// temporary implementation of the missing GDK function
+// Implement Pool of Graphic contexts. Creating them takes too much time.
//-----------------------------------------------------------------------------
-#include "gdk/gdkprivate.h"
-void gdk_draw_bitmap (GdkDrawable *drawable,
- GdkGC *gc,
- GdkDrawable *src,
- gint xsrc,
- gint ysrc,
- gint xdest,
- gint ydest,
- gint width,
- gint height)
-{
- GdkWindowPrivate *drawable_private;
- GdkWindowPrivate *src_private;
- GdkGCPrivate *gc_private;
-
- g_return_if_fail (drawable != NULL);
- g_return_if_fail (src != NULL);
- g_return_if_fail (gc != NULL);
-
- drawable_private = (GdkWindowPrivate*) drawable;
- src_private = (GdkWindowPrivate*) src;
- if (drawable_private->destroyed || src_private->destroyed)
- return;
- gc_private = (GdkGCPrivate*) gc;
-
- if (width == -1)
- width = src_private->width;
- if (height == -1)
- height = src_private->height;
-
- XCopyPlane (drawable_private->xdisplay,
- src_private->xwindow,
- drawable_private->xwindow,
- gc_private->xgc,
- xsrc, ysrc,
- width, height,
- xdest, ydest,
- 1);
+
+enum wxPoolGCType
+{
+ wxGC_ERROR = 0,
+ wxTEXT_MONO,
+ wxBG_MONO,
+ wxPEN_MONO,
+ wxBRUSH_MONO,
+ wxTEXT_COLOUR,
+ wxBG_COLOUR,
+ wxPEN_COLOUR,
+ wxBRUSH_COLOUR,
+ wxTEXT_SCREEN,
+ wxBG_SCREEN,
+ wxPEN_SCREEN,
+ wxBRUSH_SCREEN,
+ wxTEXT_COLOUR_ALPHA,
+ wxBG_COLOUR_ALPHA,
+ wxPEN_COLOUR_ALPHA,
+ wxBRUSH_COLOUR_ALPHA
+};
+
+struct wxGC
+{
+ GdkGC *m_gc;
+ wxPoolGCType m_type;
+ bool m_used;
+};
+
+#define GC_POOL_ALLOC_SIZE 100
+
+static int wxGCPoolSize = 0;
+
+static wxGC *wxGCPool = NULL;
+
+static void wxInitGCPool()
+{
+ // This really could wait until the first call to
+ // wxGetPoolGC, but we will make the first allocation
+ // now when other initialization is being performed.
+
+ // Set initial pool size.
+ wxGCPoolSize = GC_POOL_ALLOC_SIZE;
+
+ // Allocate initial pool.
+ wxGCPool = (wxGC *)malloc(wxGCPoolSize * sizeof(wxGC));
+ if (wxGCPool == NULL)
+ {
+ // If we cannot malloc, then fail with error
+ // when debug is enabled. If debug is not enabled,
+ // the problem will eventually get caught
+ // in wxGetPoolGC.
+ wxFAIL_MSG( wxT("Cannot allocate GC pool") );
+ return;
+ }
+
+ // Zero initial pool.
+ memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));
+}
+
+static void wxCleanUpGCPool()
+{
+ for (int i = 0; i < wxGCPoolSize; i++)
+ {
+ if (wxGCPool[i].m_gc)
+ g_object_unref (wxGCPool[i].m_gc);
+ }
+
+ free(wxGCPool);
+ wxGCPool = NULL;
+ wxGCPoolSize = 0;
+}
+
+static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
+{
+ wxGC *pptr;
+
+ // Look for an available GC.
+ for (int i = 0; i < wxGCPoolSize; i++)
+ {
+ if (!wxGCPool[i].m_gc)
+ {
+ wxGCPool[i].m_gc = gdk_gc_new( window );
+ gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE );
+ wxGCPool[i].m_type = type;
+ wxGCPool[i].m_used = false;
+ }
+ if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
+ {
+ wxGCPool[i].m_used = true;
+ return wxGCPool[i].m_gc;
+ }
+ }
+
+ // We did not find an available GC.
+ // We need to grow the GC pool.
+ pptr = (wxGC *)realloc(wxGCPool,
+ (wxGCPoolSize + GC_POOL_ALLOC_SIZE)*sizeof(wxGC));
+ if (pptr != NULL)
+ {
+ // Initialize newly allocated pool.
+ wxGCPool = pptr;
+ memset(&wxGCPool[wxGCPoolSize], 0,
+ GC_POOL_ALLOC_SIZE*sizeof(wxGC));
+
+ // Initialize entry we will return.
+ wxGCPool[wxGCPoolSize].m_gc = gdk_gc_new( window );
+ gdk_gc_set_exposures( wxGCPool[wxGCPoolSize].m_gc, FALSE );
+ wxGCPool[wxGCPoolSize].m_type = type;
+ wxGCPool[wxGCPoolSize].m_used = true;
+
+ // Set new value of pool size.
+ wxGCPoolSize += GC_POOL_ALLOC_SIZE;
+
+ // Return newly allocated entry.
+ return wxGCPool[wxGCPoolSize-GC_POOL_ALLOC_SIZE].m_gc;
+ }
+
+ // The realloc failed. Fall through to error.
+ wxFAIL_MSG( wxT("No GC available") );
+
+ return NULL;
+}
+
+static void wxFreePoolGC( GdkGC *gc )
+{
+ for (int i = 0; i < wxGCPoolSize; i++)
+ {
+ if (wxGCPool[i].m_gc == gc)
+ {
+ wxGCPool[i].m_used = false;
+ return;
+ }
+ }
+
+ wxFAIL_MSG( wxT("Wrong GC") );
}
//-----------------------------------------------------------------------------
-// wxPaintDC
+// wxWindowDC
//-----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxDC)
+IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxGTKDCImpl)
-wxPaintDC::wxPaintDC(void)
-{
- m_penGC = NULL;
- m_brushGC = NULL;
- m_textGC = NULL;
- m_bgGC = NULL;
- m_cmap = NULL;
-}
-
-wxPaintDC::wxPaintDC( wxWindow *window )
-{
- m_penGC = NULL;
- m_brushGC = NULL;
- m_textGC = NULL;
- m_bgGC = NULL;
- m_cmap = NULL;
-
- if (!window) return;
- GtkWidget *widget = window->m_wxwindow;
- if (!widget) return;
- m_window = widget->window;
- if (!m_window) return;
- if (window->m_wxwindow)
- m_cmap = gtk_widget_get_colormap( window->m_wxwindow );
- else
- m_cmap = gtk_widget_get_colormap( window->m_widget );
-
- m_isDrawable = TRUE;
-
- SetUpDC();
-}
-
-wxPaintDC::~wxPaintDC(void)
-{
-}
-
-void wxPaintDC::FloodFill( long WXUNUSED(x1), long WXUNUSED(y1),
- wxColour *WXUNUSED(col), int WXUNUSED(style) )
-{
-}
-
-bool wxPaintDC::GetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const
-{
- return FALSE;
-}
-
-void wxPaintDC::DrawLine( long x1, long y1, long x2, long y2 )
-{
- if (!Ok()) return;
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- {
- gdk_draw_line( m_window, m_penGC,
- XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
- }
-}
-
-void wxPaintDC::CrossHair( long x, long y )
-{
- if (!Ok()) return;
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- {
- int w = 0;
- int h = 0;
- GetSize( &w, &h );
- long xx = XLOG2DEV(x);
- long yy = YLOG2DEV(y);
- gdk_draw_line( m_window, m_penGC,
- 0, yy, XLOG2DEVREL(w), yy );
- gdk_draw_line( m_window, m_penGC,
- xx, 0, xx, YLOG2DEVREL(h) );
- }
-}
-
-void wxPaintDC::DrawArc( long x1, long y1, long x2, long y2, double xc, double yc )
-{
- if (!Ok()) return;
-
- long xx1 = XLOG2DEV(x1);
- long yy1 = YLOG2DEV(y1);
- long xx2 = XLOG2DEV(x2);
- long yy2 = YLOG2DEV(y2);
- long xxc = XLOG2DEV((long)xc);
- long yyc = YLOG2DEV((long)yc);
- double dx = xx1 - xxc;
- double dy = yy1 - yyc;
- double radius = sqrt(dx*dx+dy*dy);
- long r = (long)radius;
- double radius1, radius2;
-
- if (xx1 == xx2 && yy1 == yy2)
- {
- radius1 = 0.0;
- radius2 = 360.0;
- }
- else
- if (radius == 0.0)
- {
- radius1 = radius2 = 0.0;
- }
- else
- {
- radius1 = (xx1 - xxc == 0) ?
- (yy1 - yyc < 0) ? 90.0 : -90.0 :
- -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
- radius2 = (xx2 - xxc == 0) ?
- (yy2 - yyc < 0) ? 90.0 : -90.0 :
- -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
- }
- long alpha1 = long(radius1 * 64.0);
- long alpha2 = long((radius2 - radius1) * 64.0);
- while (alpha2 <= 0) alpha2 += 360*64;
- while (alpha1 > 360*64) alpha1 -= 360*64;
-
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
-
-}
-
-void wxPaintDC::DrawEllipticArc( long x, long y, long width, long height, double sa, double ea )
-{
- if (!Ok()) return;
-
- long xx = XLOG2DEV(x);
- long yy = YLOG2DEV(y);
- long ww = m_signX * XLOG2DEVREL(width);
- long hh = m_signY * YLOG2DEVREL(height);
-
- // CMB: handle -ve width and/or height
- if (ww < 0) { ww = -ww; xx = xx - ww; }
- if (hh < 0) { hh = -hh; yy = yy - hh; }
-
- long start = long(sa * 64.0);
- long end = long(ea * 64.0);
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end );
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );
-}
-
-void wxPaintDC::DrawPoint( long x, long y )
-{
- if (!Ok()) return;
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
-}
-
-void wxPaintDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
-{
- if (!Ok()) return;
-
- if (m_pen.GetStyle() == wxTRANSPARENT) return;
-
- for (int i = 0; i < n-1; i++)
- {
- long x1 = XLOG2DEV(points[i].x + xoffset);
- long x2 = XLOG2DEV(points[i+1].x + xoffset);
- long y1 = YLOG2DEV(points[i].y + yoffset); // oh, what a waste
- long y2 = YLOG2DEV(points[i+1].y + yoffset);
- gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
- }
-}
-
-void wxPaintDC::DrawLines( wxList *points, long xoffset, long yoffset )
-{
- if (!Ok()) return;
-
- if (m_pen.GetStyle() == wxTRANSPARENT) return;
-
- wxNode *node = points->First();
- while (node->Next())
- {
- wxPoint *point = (wxPoint*)node->Data();
- wxPoint *npoint = (wxPoint*)node->Next()->Data();
- long x1 = XLOG2DEV(point->x + xoffset);
- long x2 = XLOG2DEV(npoint->x + xoffset);
- long y1 = YLOG2DEV(point->y + yoffset); // and again...
- long y2 = YLOG2DEV(npoint->y + yoffset);
- gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
- node = node->Next();
- }
-}
-
-void wxPaintDC::DrawPolygon( int n, wxPoint points[],
- long xoffset, long yoffset, int WXUNUSED(fillStyle) )
- {
- if (!Ok()) return;
- if (!n) return; // Nothing to draw
- GdkPoint *gdkpoints = new GdkPoint[n+1];
- int i;
- for (i = 0 ; i < n ; i++)
- {
- gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
- gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
- }
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n);
- // To do: Fillstyle
- if (m_pen.GetStyle() != wxTRANSPARENT)
- for (i = 0 ; i < n ; i++)
- gdk_draw_line( m_window, m_penGC,
- gdkpoints[i%n].x,
- gdkpoints[i%n].y,
- gdkpoints[(i+1)%n].x,
- gdkpoints[(i+1)%n].y);
- delete[] gdkpoints;
-}
-
-void wxPaintDC::DrawPolygon( wxList *lines, long xoffset,
- long yoffset, int WXUNUSED(fillStyle))
- {
- int n = lines->Number();
-
- if (!Ok()) return;
- GdkPoint *gdkpoints = new GdkPoint[n];
- wxNode *node = lines->First();
- int cnt=0;
- while (node)
- {
- wxPoint *p = (wxPoint *) node->Data();
- gdkpoints[cnt].x = XLOG2DEV(p->x + xoffset);
- gdkpoints[cnt].y = YLOG2DEV(p->y + yoffset);
- node = node->Next();
- cnt++;
- }
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n);
- // To do: Fillstyle
- if (m_pen.GetStyle() != wxTRANSPARENT)
- {
- int i;
- for (i = 0 ; i < n ; i++)
- gdk_draw_line( m_window, m_penGC,
- gdkpoints[i%n].x,
- gdkpoints[i%n].y,
- gdkpoints[(i+1)%n].x,
- gdkpoints[(i+1)%n].y);
- }
- delete[] gdkpoints;
-}
-
-void wxPaintDC::DrawRectangle( long x, long y, long width, long height )
-{
- if (!Ok()) return;
-
- long xx = XLOG2DEV(x);
- long yy = YLOG2DEV(y);
- long ww = m_signX * XLOG2DEVREL(width);
- long hh = m_signY * YLOG2DEVREL(height);
-
- // CMB: draw nothing if transformed w or h is 0
- if (ww == 0 || hh == 0) return;
-
- // CMB: handle -ve width and/or height
- if (ww < 0) { ww = -ww; xx = xx - ww; }
- if (hh < 0) { hh = -hh; yy = yy - hh; }
-
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
-}
-
-void wxPaintDC::DrawRoundedRectangle( long x, long y, long width, long height, double radius )
-{
- if (!Ok()) return;
-
- if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
-
- long xx = XLOG2DEV(x);
- long yy = YLOG2DEV(y);
- long ww = m_signX * XLOG2DEVREL(width);
- long hh = m_signY * YLOG2DEVREL(height);
- long rr = XLOG2DEVREL((long)radius);
-
- // CMB: handle -ve width and/or height
- if (ww < 0) { ww = -ww; xx = xx - ww; }
- if (hh < 0) { hh = -hh; yy = yy - hh; }
-
- // CMB: if radius is zero use DrawRectangle() instead to avoid
- // X drawing errors with small radii
- if (rr == 0)
- {
- DrawRectangle( x, y, width, height );
- return;
- }
-
- // CMB: draw nothing if transformed w or h is 0
- if (ww == 0 || hh == 0) return;
-
- // CMB: adjust size if outline is drawn otherwise the result is
- // 1 pixel too wide and high
- if (m_pen.GetStyle() != wxTRANSPARENT)
- {
- ww--;
- hh--;
- }
-
- // CMB: ensure dd is not larger than rectangle otherwise we
- // get an hour glass shape
- long dd = 2 * rr;
- if (dd > ww) dd = ww;
- if (dd > hh) dd = hh;
- rr = dd / 2;
-
- if (m_brush.GetStyle() != wxTRANSPARENT)
- {
- gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
- gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
- }
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- {
- gdk_draw_line( m_window, m_penGC, xx+rr, yy, xx+ww-rr, yy );
- gdk_draw_line( m_window, m_penGC, xx+rr, yy+hh, xx+ww-rr, yy+hh );
- gdk_draw_line( m_window, m_penGC, xx, yy+rr, xx, yy+hh-rr );
- gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr, xx+ww, yy+hh-rr );
- gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 );
- gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
- gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
- gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
- }
-}
-
-void wxPaintDC::DrawEllipse( long x, long y, long width, long height )
-{
- if (!Ok()) return;
-
- long xx = XLOG2DEV(x);
- long yy = YLOG2DEV(y);
- long ww = m_signX * XLOG2DEVREL(width);
- long hh = m_signY * YLOG2DEVREL(height);
-
- // CMB: handle -ve width and/or height
- if (ww < 0) { ww = -ww; xx = xx - ww; }
- if (hh < 0) { hh = -hh; yy = yy - hh; }
-
- if (m_brush.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
-
- if (m_pen.GetStyle() != wxTRANSPARENT)
- gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
-}
-
-bool wxPaintDC::CanDrawBitmap(void) const
-{
- return TRUE;
-}
-
-void wxPaintDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
-{
- if (!Ok()) return;
-
- if (!icon.Ok()) return;
-
- int xx = XLOG2DEV(x);
- int yy = YLOG2DEV(y);
-
- GdkBitmap *mask = NULL;
- if (icon.GetMask()) mask = icon.GetMask()->GetBitmap();
-
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, mask );
- gdk_gc_set_clip_origin( m_penGC, xx, yy );
- }
-
- GdkPixmap *pm = icon.GetPixmap();
- gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 );
-
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, NULL );
- gdk_gc_set_clip_origin( m_penGC, 0, 0 );
- }
-}
-
-bool wxPaintDC::Blit( long xdest, long ydest, long width, long height,
- wxDC *source, long xsrc, long ysrc, int WXUNUSED(logical_func), bool WXUNUSED(useMask) )
-{
- if (!Ok()) return FALSE;
-
- // CMB 20/5/98: add blitting of bitmaps
- if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
- {
- wxMemoryDC* srcDC = (wxMemoryDC*)source;
- GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
- if (bmap)
- {
- gdk_draw_bitmap (
- m_window,
- m_textGC,
- bmap,
- source->DeviceToLogicalX(xsrc), source->DeviceToLogicalY(ysrc),
- XLOG2DEV(xdest), YLOG2DEV(ydest),
- source->DeviceToLogicalXRel(width), source->DeviceToLogicalYRel(height)
- );
- return TRUE;
- }
- }
-
- wxClientDC *csrc = (wxClientDC*)source;
- gdk_window_copy_area ( m_window, m_penGC,
- XLOG2DEV(xdest), YLOG2DEV(ydest),
- csrc->GetWindow(),
- source->DeviceToLogicalX(xsrc), source->DeviceToLogicalY(ysrc),
- source->DeviceToLogicalXRel(width), source->DeviceToLogicalYRel(height) );
-
-/*
- gdk_window_copy_area ( m_window, m_penGC,
- XLOG2DEV(xdest), YLOG2DEV(ydest),
- csrc->GetWindow(),
- xsrc, ysrc,
- width, height );
-*/
-
- return TRUE;
+wxWindowDCImpl::wxWindowDCImpl( wxDC *owner ) :
+ wxGTKDCImpl( owner )
+{
+ m_gdkwindow = NULL;
+ m_penGC = NULL;
+ m_brushGC = NULL;
+ m_textGC = NULL;
+ m_bgGC = NULL;
+ m_cmap = NULL;
+ m_isScreenDC = false;
+ m_context = NULL;
+ m_layout = NULL;
+ m_fontdesc = NULL;
+}
+
+wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
+ wxGTKDCImpl( owner )
+{
+ wxASSERT_MSG( window, wxT("DC needs a window") );
+
+ m_gdkwindow = NULL;
+ m_penGC = NULL;
+ m_brushGC = NULL;
+ m_textGC = NULL;
+ m_bgGC = NULL;
+ m_cmap = NULL;
+ m_isScreenDC = false;
+ m_font = window->GetFont();
+
+ GtkWidget *widget = window->m_wxwindow;
+ m_gdkwindow = window->GTKGetDrawingWindow();
+
+ // Some controls don't have m_wxwindow - like wxStaticBox, but the user
+ // code should still be able to create wxClientDCs for them
+ if ( !widget )
+ {
+ widget = window->m_widget;
+
+ wxCHECK_RET(widget, "DC needs a widget");
+
+ m_gdkwindow = widget->window;
+ if (!gtk_widget_get_has_window(widget))
+ SetDeviceLocalOrigin(widget->allocation.x, widget->allocation.y);
+ }
+
+ m_context = window->GTKGetPangoDefaultContext();
+ m_layout = pango_layout_new( m_context );
+ m_fontdesc = pango_font_description_copy( widget->style->font_desc );
+
+ // Window not realized ?
+ if (!m_gdkwindow)
+ {
+ // Don't report problems as per MSW.
+ m_ok = true;
+
+ return;
+ }
+
+ m_cmap = gtk_widget_get_colormap(widget);
+
+ SetUpDC();
+
+ /* this must be done after SetUpDC, bacause SetUpDC calls the
+ repective SetBrush, SetPen, SetBackground etc functions
+ to set up the DC. SetBackground call m_owner->SetBackground
+ and this might not be desired as the standard dc background
+ is white whereas a window might assume gray to be the
+ standard (as e.g. wxStatusBar) */
+
+ m_window = window;
+
+ if (m_window && m_window->m_wxwindow &&
+ (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
+ {
+ // reverse sense
+ m_signX = -1;
+
+ // origin in the upper right corner
+ m_deviceOriginX = m_window->GetClientSize().x;
+ }
+}
+
+wxWindowDCImpl::~wxWindowDCImpl()
+{
+ Destroy();
+
+ if (m_layout)
+ g_object_unref (m_layout);
+ if (m_fontdesc)
+ pango_font_description_free( m_fontdesc );
}
-void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(use16) )
+void wxWindowDCImpl::SetUpDC( bool isMemDC )
{
- if (!Ok()) return;
+ m_ok = true;
+
+ wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
+
+ bool done = false;
- GdkFont *font = m_font.GetInternalFont( m_scaleY );
+ if ((isMemDC) && (GetSelectedBitmap().IsOk()))
+ {
+ if (GetSelectedBitmap().GetDepth() == 1)
+ {
+ m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_MONO );
+ m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_MONO );
+ m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_MONO );
+ m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_MONO );
+ done = true;
+ }
+ }
+
+ if (!done)
+ {
+ if (m_isScreenDC)
+ {
+ m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_SCREEN );
+ m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_SCREEN );
+ m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_SCREEN );
+ m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_SCREEN );
+ }
+#if GTK_CHECK_VERSION(2,12,0)
+ // gdk_screen_get_rgba_colormap was added in 2.8, but this code is for
+ // compositing which requires 2.12
+ else if (gtk_check_version(2,12,0) == NULL &&
+ m_cmap == gdk_screen_get_rgba_colormap(gdk_colormap_get_screen(m_cmap)))
+ {
+ m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_COLOUR_ALPHA );
+ m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_COLOUR_ALPHA );
+ m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_COLOUR_ALPHA );
+ m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_COLOUR_ALPHA );
+ }
+#endif
+ else
+ {
+ m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_COLOUR );
+ m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_COLOUR );
+ m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_COLOUR );
+ m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_COLOUR );
+ }
+ }
- x = XLOG2DEV(x);
- y = YLOG2DEV(y);
+ /* background colour */
+ m_backgroundBrush = *wxWHITE_BRUSH;
+ m_backgroundBrush.GetColour().CalcPixel( m_cmap );
+ const GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor();
- // CMB 21/5/98: draw text background if mode is wxSOLID
- if (m_backgroundMode == wxSOLID)
- {
- long width = gdk_string_width( font, text );
- long height = font->ascent + font->descent;
- gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() );
- gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height );
+ /* m_textGC */
+ m_textForegroundColour.CalcPixel( m_cmap );
gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
- }
- gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text );
-
- // CMB 17/7/98: simple underline: ignores scaling and underlying
- // X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
- // properties (see wxXt implementation)
- if (m_font.GetUnderlined())
- {
- long width = gdk_string_width( font, text );
- long ul_y = y + font->ascent;
- if (font->descent > 0) ul_y++;
- gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
- }
-}
-
-bool wxPaintDC::CanGetTextExtent(void) const
-{
- return TRUE;
-}
-
-void wxPaintDC::GetTextExtent( const wxString &string, long *width, long *height,
- long *descent, long *externalLeading,
- wxFont *theFont, bool WXUNUSED(use16) )
-{
- if (!Ok()) return;
-
- wxFont fontToUse = m_font;
- if (theFont) fontToUse = *theFont;
-
- GdkFont *font = fontToUse.GetInternalFont( m_scaleY );
- if (width) (*width) = long(gdk_string_width( font, string ) / m_scaleX);
- if (height) (*height) = long((font->ascent + font->descent) / m_scaleY);
- if (descent) (*descent) = long(font->descent / m_scaleY);
- if (externalLeading) (*externalLeading) = 0; // ??
-}
-
-long wxPaintDC::GetCharWidth(void)
-{
- if (!Ok()) return 0;
-
- GdkFont *font = m_font.GetInternalFont( m_scaleY );
- return long(gdk_string_width( font, "H" ) / m_scaleX);
-}
-
-long wxPaintDC::GetCharHeight(void)
-{
- if (!Ok()) return 0;
-
- GdkFont *font = m_font.GetInternalFont( m_scaleY );
- return long((font->ascent + font->descent) / m_scaleY);
-}
-
-void wxPaintDC::Clear(void)
-{
- if (!Ok()) return;
-
-// DestroyClippingRegion();
-
- if (m_isDrawable)
- {
- gdk_window_clear( m_window );
- }
- else
- {
- int width = 0;
- int height = 0;
- GetSize( &width, &height );
- gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
- }
-}
-
-void wxPaintDC::SetFont( const wxFont &font )
-{
- if (!Ok()) return;
-
- m_font = font;
-}
-
-void wxPaintDC::SetPen( const wxPen &pen )
-{
- if (!Ok()) return;
-
- if (m_pen == pen) return;
-
- m_pen = pen;
-
- if (!m_pen.Ok()) return;
-
- gint width = m_pen.GetWidth();
- // CMB: if width is non-zero scale it with the dc
- if (width <= 0)
- {
- width = 1;
- }
- else
- {
- // X doesn't allow different width in x and y and so we take
- // the average
- double w = 0.5 + (abs(XLOG2DEVREL(width)) + abs(YLOG2DEVREL(width))) / 2.0;
- width = (int)w;
- }
-
- GdkLineStyle lineStyle = GDK_LINE_SOLID;
- switch (m_pen.GetStyle())
- {
- case wxSOLID: { lineStyle = GDK_LINE_SOLID; break; }
- case wxDOT: { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
- case wxLONG_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
- case wxSHORT_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; }
- case wxDOT_DASH: { lineStyle = GDK_LINE_DOUBLE_DASH; break; }
- }
-
- GdkCapStyle capStyle = GDK_CAP_ROUND;
- switch (m_pen.GetCap())
- {
- case wxCAP_ROUND: { capStyle = (width <= 1) ? GDK_CAP_NOT_LAST : GDK_CAP_ROUND; break; }
- case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
- case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; }
- }
-
- GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
- switch (m_pen.GetJoin())
- {
- case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
- case wxJOIN_ROUND: { joinStyle = GDK_JOIN_ROUND; break; }
- case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
- }
-
- gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
-
- m_pen.GetColour().CalcPixel( m_cmap );
- gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
-}
-
-void wxPaintDC::SetBrush( const wxBrush &brush )
-{
- if (!Ok()) return;
-
- if (m_brush == brush) return;
-
- m_brush = brush;
-
- if (!m_brush.Ok()) return;
-
- m_brush.GetColour().CalcPixel( m_cmap );
- gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
-
- GdkFill fillStyle = GDK_SOLID;
- switch (m_brush.GetStyle())
- {
- case wxSOLID:
- case wxTRANSPARENT:
- break;
- default:
- fillStyle = GDK_STIPPLED;
- }
-
- gdk_gc_set_fill( m_brushGC, fillStyle );
-
- if (m_brush.GetStyle() == wxSTIPPLE)
- {
- gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
- }
-
- if (IS_HATCH(m_brush.GetStyle()))
- {
- int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
- gdk_gc_set_stipple( m_brushGC, hatches[num] );
- }
-}
-
-// CMB 21/7/98: Added SetBackground. Sets background brush
-// for Clear() and bg colour for shapes filled with cross-hatch brush
-void wxPaintDC::SetBackground( const wxBrush &brush )
-{
- if (!Ok()) return;
-
- if (m_backgroundBrush == brush) return;
-
- m_backgroundBrush = brush;
-
- if (!m_backgroundBrush.Ok()) return;
-
- m_backgroundBrush.GetColour().CalcPixel( m_cmap );
- gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() );
- gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
-
- GdkFill fillStyle = GDK_SOLID;
- switch (m_backgroundBrush.GetStyle())
- {
- case wxSOLID:
- case wxTRANSPARENT:
- break;
- default:
- fillStyle = GDK_STIPPLED;
- }
-
- gdk_gc_set_fill( m_bgGC, fillStyle );
-
- if (m_backgroundBrush.GetStyle() == wxSTIPPLE)
- {
- gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
- }
-
- if (IS_HATCH(m_backgroundBrush.GetStyle()))
- {
- int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
- gdk_gc_set_stipple( m_bgGC, hatches[num] );
- }
-}
-
-void wxPaintDC::SetLogicalFunction( int function )
-{
- if (m_logicalFunction == function) return;
- GdkFunction mode = GDK_COPY;
- switch (function)
- {
- case wxXOR: mode = GDK_INVERT; break;
- case wxINVERT: mode = GDK_INVERT; break;
- default: break;
- }
- m_logicalFunction = function;
- gdk_gc_set_function( m_penGC, mode );
- gdk_gc_set_function( m_brushGC, mode );
-}
-
-void wxPaintDC::SetTextForeground( const wxColour &col )
-{
- if (!Ok()) return;
-
- if (m_textForegroundColour == col) return;
-
- m_textForegroundColour = col;
- if (!m_textForegroundColour.Ok()) return;
-
- m_textForegroundColour.CalcPixel( m_cmap );
- gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
-}
-
-void wxPaintDC::SetTextBackground( const wxColour &col )
-{
- if (!Ok()) return;
-
- if (m_textBackgroundColour == col) return;
-
- m_textBackgroundColour = col;
- if (!m_textBackgroundColour.Ok()) return;
-
- m_textBackgroundColour.CalcPixel( m_cmap );
- gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
-}
-
-void wxPaintDC::SetBackgroundMode( int mode )
-{
- m_backgroundMode = mode;
-
- // CMB 21/7/98: fill style of cross-hatch brushes is affected by
- // transparent/solid background mode
- if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
- {
- gdk_gc_set_fill( m_brushGC,
- (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED);
- }
-}
-
-void wxPaintDC::SetPalette( const wxPalette& WXUNUSED(palette) )
-{
-}
-
-void wxPaintDC::SetClippingRegion( long x, long y, long width, long height )
-{
- wxDC::SetClippingRegion( x, y, width, height );
-
- GdkRectangle rect;
- rect.x = XLOG2DEV(x);
- rect.y = YLOG2DEV(y);
- rect.width = XLOG2DEVREL(width);
- rect.height = YLOG2DEVREL(height);
- gdk_gc_set_clip_rectangle( m_penGC, &rect );
- gdk_gc_set_clip_rectangle( m_brushGC, &rect );
- gdk_gc_set_clip_rectangle( m_textGC, &rect );
- gdk_gc_set_clip_rectangle( m_bgGC, &rect );
-
-}
-
-void wxPaintDC::DestroyClippingRegion(void)
-{
- wxDC::DestroyClippingRegion();
-
- gdk_gc_set_clip_rectangle( m_penGC, NULL );
- gdk_gc_set_clip_rectangle( m_brushGC, NULL );
- gdk_gc_set_clip_rectangle( m_textGC, NULL );
- gdk_gc_set_clip_rectangle( m_bgGC, NULL );
-}
-
-void wxPaintDC::SetUpDC(void)
-{
- m_ok = TRUE;
- m_logicalFunction = wxCOPY;
- if (m_penGC) gdk_gc_unref( m_penGC );
- m_penGC = gdk_gc_new( m_window );
- if (m_brushGC) gdk_gc_unref( m_brushGC );
- m_brushGC = gdk_gc_new( m_window );
- if (m_textGC) gdk_gc_unref( m_textGC );
- m_textGC = gdk_gc_new( m_window );
- if (m_bgGC) gdk_gc_unref( m_bgGC );
- m_bgGC = gdk_gc_new( m_window );
- SetTextForeground( m_textForegroundColour );
- SetTextBackground( m_textBackgroundColour );
- SetPen( m_pen );
- SetFont( m_font );
- SetBrush( m_brush );
-
- gdk_gc_set_background( m_penGC, wxWHITE->GetColor() );
-
- if (!hatch_bitmap)
- {
- hatch_bitmap = hatches;
- hatch_bitmap[0] = gdk_bitmap_create_from_data( NULL, bdiag_bits, bdiag_width, bdiag_height );
- hatch_bitmap[1] = gdk_bitmap_create_from_data( NULL, cdiag_bits, cdiag_width, cdiag_height );
- hatch_bitmap[2] = gdk_bitmap_create_from_data( NULL, fdiag_bits, fdiag_width, fdiag_height );
- hatch_bitmap[3] = gdk_bitmap_create_from_data( NULL, cross_bits, cross_width, cross_height );
- hatch_bitmap[4] = gdk_bitmap_create_from_data( NULL, horiz_bits, horiz_width, horiz_height );
- hatch_bitmap[5] = gdk_bitmap_create_from_data( NULL, verti_bits, verti_width, verti_height );
- }
-}
-
-GdkWindow *wxPaintDC::GetWindow(void)
-{
- return m_window;
-}
-
-// ----------------------------------- spline code ----------------------------------------
-void wx_quadratic_spline(double a1, double b1, double a2, double b2,
- double a3, double b3, double a4, double b4);
-void wx_clear_stack(void);
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
- double *y3, double *x4, double *y4);
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
- double x4, double y4);
-static bool wx_spline_add_point(double x, double y);
-static void wx_spline_draw_point_array(wxDC *dc);
-
-wxList wx_spline_point_list;
-
-#define half(z1, z2) ((z1+z2)/2.0)
-#define THRESHOLD 5
+ m_textBackgroundColour.CalcPixel( m_cmap );
+ gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
+
+ gdk_gc_set_fill( m_textGC, GDK_SOLID );
+
+ gdk_gc_set_colormap( m_textGC, m_cmap );
+
+ /* m_penGC */
+ m_pen.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
+ gdk_gc_set_background( m_penGC, bg_col );
+
+ gdk_gc_set_line_attributes( m_penGC, 0, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_ROUND );
+
+ /* m_brushGC */
+ m_brush.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
+ gdk_gc_set_background( m_brushGC, bg_col );
+
+ gdk_gc_set_fill( m_brushGC, GDK_SOLID );
+
+ /* m_bgGC */
+ gdk_gc_set_background( m_bgGC, bg_col );
+ gdk_gc_set_foreground( m_bgGC, bg_col );
+
+ gdk_gc_set_fill( m_bgGC, GDK_SOLID );
+
+ /* ROPs */
+ gdk_gc_set_function( m_textGC, GDK_COPY );
+ gdk_gc_set_function( m_brushGC, GDK_COPY );
+ gdk_gc_set_function( m_penGC, GDK_COPY );
+
+ /* clipping */
+ gdk_gc_set_clip_rectangle( m_penGC, NULL );
+ gdk_gc_set_clip_rectangle( m_brushGC, NULL );
+ gdk_gc_set_clip_rectangle( m_textGC, NULL );
+ gdk_gc_set_clip_rectangle( m_bgGC, NULL );
+}
+
+void wxWindowDCImpl::DoGetSize( int* width, int* height ) const
+{
+ wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
+
+ m_window->GetSize(width, height);
+}
+
+bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y,
+ const wxColour& col, wxFloodFillStyle style)
+{
+#if wxUSE_IMAGE
+ extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+ const wxColour & col, wxFloodFillStyle style);
+
+ return wxDoFloodFill( GetOwner(), x, y, col, style);
+#else
+ wxUnusedVar(x);
+ wxUnusedVar(y);
+ wxUnusedVar(col);
+ wxUnusedVar(style);
+
+ return false;
+#endif
+}
+
+bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
+{
+ GdkImage* image = NULL;
+ if (m_gdkwindow)
+ {
+ const int x = LogicalToDeviceX(x1);
+ const int y = LogicalToDeviceY(y1);
+ wxRect rect;
+ gdk_drawable_get_size(m_gdkwindow, &rect.width, &rect.height);
+ if (rect.Contains(x, y))
+ image = gdk_drawable_get_image(m_gdkwindow, x, y, 1, 1);
+ }
+ if (image == NULL)
+ {
+ *col = wxColour();
+ return false;
+ }
+ GdkColormap* colormap = gdk_image_get_colormap(image);
+ const unsigned pixel = gdk_image_get_pixel(image, 0, 0);
+ if (colormap == NULL)
+ *col = pixel ? m_textForegroundColour : m_textBackgroundColour;
+ else
+ {
+ GdkColor c;
+ gdk_colormap_query_color(colormap, pixel, &c);
+ col->Set(c.red >> 8, c.green >> 8, c.blue >> 8);
+ }
+ g_object_unref(image);
+ return true;
+}
+
+void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if ( m_pen.IsNonTransparent() )
+ {
+ if (m_gdkwindow)
+ gdk_draw_line( m_gdkwindow, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
+
+ CalcBoundingBox(x1, y1);
+ CalcBoundingBox(x2, y2);
+ }
+}
+
+void wxWindowDCImpl::DoCrossHair( wxCoord x, wxCoord y )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if ( m_pen.IsNonTransparent() )
+ {
+ int w = 0;
+ int h = 0;
+ GetOwner()->GetSize( &w, &h );
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ if (m_gdkwindow)
+ {
+ gdk_draw_line( m_gdkwindow, m_penGC, 0, yy, XLOG2DEVREL(w), yy );
+ gdk_draw_line( m_gdkwindow, m_penGC, xx, 0, xx, YLOG2DEVREL(h) );
+ }
+ }
+}
+
+void wxWindowDCImpl::DrawingSetup(GdkGC*& gc, bool& originChanged)
+{
+ gc = m_brushGC;
+ GdkPixmap* pixmap = NULL;
+ const int style = m_brush.GetStyle();
+
+ if (style == wxBRUSHSTYLE_STIPPLE || style == wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE)
+ {
+ const wxBitmap* stipple = m_brush.GetStipple();
+ if (stipple->IsOk())
+ {
+ if (style == wxBRUSHSTYLE_STIPPLE)
+ pixmap = stipple->GetPixmap();
+ else if (stipple->GetMask())
+ {
+ pixmap = stipple->GetPixmap();
+ gc = m_textGC;
+ }
+ }
+ }
+ else if (m_brush.IsHatch())
+ {
+ pixmap = GetHatch(style);
+ }
+
+ int origin_x = 0;
+ int origin_y = 0;
+ if (pixmap)
+ {
+ int w, h;
+ gdk_drawable_get_size(pixmap, &w, &h);
+ origin_x = m_deviceOriginX % w;
+ origin_y = m_deviceOriginY % h;
+ }
+
+ originChanged = origin_x || origin_y;
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, origin_x, origin_y);
+}
+
+void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
+ wxCoord xc, wxCoord yc )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxCoord xx1 = XLOG2DEV(x1);
+ wxCoord yy1 = YLOG2DEV(y1);
+ wxCoord xx2 = XLOG2DEV(x2);
+ wxCoord yy2 = YLOG2DEV(y2);
+ wxCoord xxc = XLOG2DEV(xc);
+ wxCoord yyc = YLOG2DEV(yc);
+ double dx = xx1 - xxc;
+ double dy = yy1 - yyc;
+ double radius = sqrt((double)(dx*dx+dy*dy));
+ wxCoord r = (wxCoord)radius;
+ double radius1, radius2;
+
+ if (xx1 == xx2 && yy1 == yy2)
+ {
+ radius1 = 0.0;
+ radius2 = 360.0;
+ }
+ else if ( wxIsNullDouble(radius) )
+ {
+ radius1 =
+ radius2 = 0.0;
+ }
+ else
+ {
+ radius1 = (xx1 - xxc == 0) ?
+ (yy1 - yyc < 0) ? 90.0 : -90.0 :
+ -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
+ radius2 = (xx2 - xxc == 0) ?
+ (yy2 - yyc < 0) ? 90.0 : -90.0 :
+ -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
+ }
+ wxCoord alpha1 = wxCoord(radius1 * 64.0);
+ wxCoord alpha2 = wxCoord((radius2 - radius1) * 64.0);
+ while (alpha2 <= 0) alpha2 += 360*64;
+ while (alpha1 > 360*64) alpha1 -= 360*64;
+
+ if (m_gdkwindow)
+ {
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ gdk_draw_arc(m_gdkwindow, gc, true, xxc-r, yyc-r, 2*r, 2*r, alpha1, alpha2);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ {
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
+
+ if ( m_brush.IsNonTransparent() && (alpha2 - alpha1 != 360*64) )
+ {
+ gdk_draw_line( m_gdkwindow, m_penGC, xx1, yy1, xxc, yyc );
+ gdk_draw_line( m_gdkwindow, m_penGC, xxc, yyc, xx2, yy2 );
+ }
+ }
+ }
+
+ CalcBoundingBox (x1, y1);
+ CalcBoundingBox (x2, y2);
+}
+
+void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ if (m_gdkwindow)
+ {
+ wxCoord start = wxCoord(sa * 64.0);
+ wxCoord end = wxCoord((ea-sa) * 64.0);
+
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ gdk_draw_arc(m_gdkwindow, gc, true, xx, yy, ww, hh, start, end);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, ww, hh, start, end );
+ }
+
+ CalcBoundingBox (x, y);
+ CalcBoundingBox (x + width, y + height);
+}
+
+void wxWindowDCImpl::DoDrawPoint( wxCoord x, wxCoord y )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if ( m_pen.IsNonTransparent() && m_gdkwindow )
+ gdk_draw_point( m_gdkwindow, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
+
+ CalcBoundingBox (x, y);
+}
+
+void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (n <= 0) return;
+
+ if ( m_pen.IsTransparent() )
+ return;
+
+ //Check, if scaling is necessary
+ const bool doScale =
+ xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
+
+ // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
+ GdkPoint* gpts = reinterpret_cast<GdkPoint*>(points);
+
+ if (doScale)
+ gpts = new GdkPoint[n];
+
+ for (int i = 0; i < n; i++)
+ {
+ if (doScale)
+ {
+ gpts[i].x = XLOG2DEV(points[i].x + xoffset);
+ gpts[i].y = YLOG2DEV(points[i].y + yoffset);
+ }
+ CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
+ }
+
+ if (m_gdkwindow)
+ gdk_draw_lines( m_gdkwindow, m_penGC, gpts, n);
+
+ if (doScale)
+ delete[] gpts;
+}
+
+void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ wxPolygonFillMode WXUNUSED(fillStyle) )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (n <= 0) return;
+
+ //Check, if scaling is necessary
+ const bool doScale =
+ xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
+
+ // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other
+ GdkPoint* gdkpoints = reinterpret_cast<GdkPoint*>(points);
+
+ if (doScale)
+ gdkpoints = new GdkPoint[n];
+
+ int i;
+ for (i = 0 ; i < n ; i++)
+ {
+ if (doScale)
+ {
+ gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
+ gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
+ }
+ CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
+ }
-/* iterative version */
+ if (m_gdkwindow)
+ {
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ gdk_draw_polygon(m_gdkwindow, gc, true, gdkpoints, n);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ {
+/*
+ for (i = 0 ; i < n ; i++)
+ {
+ gdk_draw_line( m_gdkwindow, m_penGC,
+ gdkpoints[i%n].x,
+ gdkpoints[i%n].y,
+ gdkpoints[(i+1)%n].x,
+ gdkpoints[(i+1)%n].y);
+ }
+*/
+ gdk_draw_polygon( m_gdkwindow, m_penGC, FALSE, gdkpoints, n );
+
+ }
+ }
+
+ if (doScale)
+ delete[] gdkpoints;
+}
+
+void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+
+ // CMB: draw nothing if transformed w or h is 0
+ if (ww == 0 || hh == 0) return;
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ if (m_gdkwindow)
+ {
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ gdk_draw_rectangle(m_gdkwindow, gc, true, xx, yy, ww, hh);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ {
+ if ((m_pen.GetWidth() == 2) && (m_pen.GetCap() == wxCAP_ROUND) &&
+ (m_pen.GetJoin() == wxJOIN_ROUND) && (m_pen.GetStyle() == wxPENSTYLE_SOLID))
+ {
+ // Use 2 1-line rects instead
+ gdk_gc_set_line_attributes( m_penGC, 1, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
+
+ if (m_signX == -1)
+ {
+ // Different for RTL
+ gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx+1, yy, ww-2, hh-2 );
+ gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy-1, ww, hh );
+ }
+ else
+ {
+ gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy, ww-2, hh-2 );
+ gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx-1, yy-1, ww, hh );
+ }
+
+ // reset
+ gdk_gc_set_line_attributes( m_penGC, 2, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
+ }
+ else
+ {
+ // Just use X11 for other cases
+ gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
+ }
+ }
+ }
+
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+ wxCoord rr = XLOG2DEVREL((wxCoord)radius);
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ // CMB: if radius is zero use DrawRectangle() instead to avoid
+ // X drawing errors with small radii
+ if (rr == 0)
+ {
+ DoDrawRectangle( x, y, width, height );
+ return;
+ }
+
+ // CMB: draw nothing if transformed w or h is 0
+ if (ww == 0 || hh == 0) return;
+
+ // CMB: adjust size if outline is drawn otherwise the result is
+ // 1 pixel too wide and high
+ if ( m_pen.IsNonTransparent() )
+ {
+ ww--;
+ hh--;
+ }
+
+ if (m_gdkwindow)
+ {
+ // CMB: ensure dd is not larger than rectangle otherwise we
+ // get an hour glass shape
+ wxCoord dd = 2 * rr;
+ if (dd > ww) dd = ww;
+ if (dd > hh) dd = hh;
+ rr = dd / 2;
+
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ gdk_draw_rectangle(m_gdkwindow, gc, true, xx+rr, yy, ww-dd+1, hh);
+ gdk_draw_rectangle(m_gdkwindow, gc, true, xx, yy+rr, ww, hh-dd+1);
+ gdk_draw_arc(m_gdkwindow, gc, true, xx, yy, dd, dd, 90*64, 90*64);
+ gdk_draw_arc(m_gdkwindow, gc, true, xx+ww-dd, yy, dd, dd, 0, 90*64);
+ gdk_draw_arc(m_gdkwindow, gc, true, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64);
+ gdk_draw_arc(m_gdkwindow, gc, true, xx, yy+hh-dd, dd, dd, 180*64, 90*64);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ {
+ gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy, xx+ww-rr, yy );
+ gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh );
+ gdk_draw_line( m_gdkwindow, m_penGC, xx, yy+rr+1, xx, yy+hh-rr );
+ gdk_draw_line( m_gdkwindow, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr );
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 );
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
+ gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
+ }
+ }
+
+ // this ignores the radius
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ if (m_gdkwindow)
+ {
+ if ( m_brush.IsNonTransparent() )
+ {
+ GdkGC* gc;
+ bool originChanged;
+ DrawingSetup(gc, originChanged);
+
+ // If the pen is transparent pen we increase the size
+ // for better compatibility with other platforms.
+ if (m_pen.IsTransparent())
+ {
+ ++ww;
+ ++hh;
+ }
+
+ gdk_draw_arc(m_gdkwindow, gc, true, xx, yy, ww, hh, 0, 360*64);
+
+ if (originChanged)
+ gdk_gc_set_ts_origin(gc, 0, 0);
+ }
+
+ if ( m_pen.IsNonTransparent() )
+ gdk_draw_arc( m_gdkwindow, m_penGC, false, xx, yy, ww, hh, 0, 360*64 );
+ }
-void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
- double b4)
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
+{
+ // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
+ DoDrawBitmap( (const wxBitmap&)icon, x, y, true );
+}
+
+// scale a pixbuf, return new pixbuf, unref old one
+static GdkPixbuf*
+Scale(GdkPixbuf* pixbuf, int dst_w, int dst_h, double sx, double sy)
{
- register double xmid, ymid;
- double x1, y1, x2, y2, x3, y3, x4, y4;
-
- wx_clear_stack();
- wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
+ GdkPixbuf* pixbuf_scaled = gdk_pixbuf_new(
+ GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, dst_w, dst_h);
+ gdk_pixbuf_scale(pixbuf, pixbuf_scaled,
+ 0, 0, dst_w, dst_h, 0, 0, sx, sy, GDK_INTERP_NEAREST);
+ g_object_unref(pixbuf);
+ return pixbuf_scaled;
+}
- while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
- xmid = (double)half(x2, x3);
- ymid = (double)half(y2, y3);
- if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
- fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
- wx_spline_add_point( x1, y1 );
- wx_spline_add_point( xmid, ymid );
- } else {
- wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
- (double)half(x3, x4), (double)half(y3, y4), x4, y4);
- wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
- (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
- }
- }
-}
-
-/* utilities used by spline drawing routines */
-
-typedef struct wx_spline_stack_struct {
- double x1, y1, x2, y2, x3, y3, x4, y4;
-} Stack;
-
-#define SPLINE_STACK_DEPTH 20
-static Stack wx_spline_stack[SPLINE_STACK_DEPTH];
-static Stack *wx_stack_top;
-static int wx_stack_count;
-
-void wx_clear_stack(void)
-{
- wx_stack_top = wx_spline_stack;
- wx_stack_count = 0;
-}
-
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
-{
- wx_stack_top->x1 = x1;
- wx_stack_top->y1 = y1;
- wx_stack_top->x2 = x2;
- wx_stack_top->y2 = y2;
- wx_stack_top->x3 = x3;
- wx_stack_top->y3 = y3;
- wx_stack_top->x4 = x4;
- wx_stack_top->y4 = y4;
- wx_stack_top++;
- wx_stack_count++;
+// scale part of a pixmap using pixbuf scaling, return pixbuf
+static GdkPixbuf*
+Scale(GdkPixmap* pixmap, int x, int y, int w, int h, int dst_w, int dst_h, double sx, double sy)
+{
+ GdkPixbuf* pixbuf = gdk_pixbuf_get_from_drawable(
+ NULL, pixmap, NULL, x, y, 0, 0, w, h);
+ return Scale(pixbuf, dst_w, dst_h, sx, sy);
}
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
- double *x3, double *y3, double *x4, double *y4)
+// scale part of a mask pixmap, return new mask, unref old one
+static GdkPixmap*
+ScaleMask(GdkPixmap* mask, int x, int y, int w, int h, int dst_w, int dst_h, double sx, double sy)
{
- if (wx_stack_count == 0)
- return (0);
- wx_stack_top--;
- wx_stack_count--;
- *x1 = wx_stack_top->x1;
- *y1 = wx_stack_top->y1;
- *x2 = wx_stack_top->x2;
- *y2 = wx_stack_top->y2;
- *x3 = wx_stack_top->x3;
- *y3 = wx_stack_top->y3;
- *x4 = wx_stack_top->x4;
- *y4 = wx_stack_top->y4;
- return (1);
+ GdkPixbuf* pixbuf = Scale(mask, x, y, w, h, dst_w, dst_h, sx, sy);
+
+ // convert black and white pixbuf back to a mono pixmap
+ const unsigned out_rowstride = (dst_w + 7) / 8;
+ const size_t data_size = out_rowstride * size_t(dst_h);
+ char* data = new char[data_size];
+ char* out = data;
+ const guchar* row = gdk_pixbuf_get_pixels(pixbuf);
+ const int rowstride = gdk_pixbuf_get_rowstride(pixbuf);
+ memset(data, 0, data_size);
+ for (int j = 0; j < dst_h; j++, row += rowstride, out += out_rowstride)
+ {
+ const guchar* in = row;
+ for (int i = 0; i < dst_w; i++, in += 3)
+ if (*in)
+ out[i >> 3] |= 1 << (i & 7);
+ }
+ g_object_unref(pixbuf);
+ GdkPixmap* pixmap = gdk_bitmap_create_from_data(mask, data, dst_w, dst_h);
+ delete[] data;
+ g_object_unref(mask);
+ return pixmap;
}
-static bool wx_spline_add_point(double x, double y)
+// Make a new mask from part of a mask and a clip region.
+// Return new mask, unref old one.
+static GdkPixmap*
+ClipMask(GdkPixmap* mask, GdkRegion* clipRegion, int x, int y, int dst_x, int dst_y, int w, int h)
{
- wxPoint *point = new wxPoint ;
- point->x = (int) x;
- point->y = (int) y;
- wx_spline_point_list.Append((wxObject*)point);
- return TRUE;
+ GdkGCValues gcValues;
+ gcValues.foreground.pixel = 0;
+ GdkGC* gc = gdk_gc_new_with_values(mask, &gcValues, GDK_GC_FOREGROUND);
+ GdkPixmap* pixmap = gdk_pixmap_new(mask, w, h, 1);
+ // clear new mask, so clipped areas will be masked
+ gdk_draw_rectangle(pixmap, gc, true, 0, 0, w, h);
+ gdk_gc_set_clip_region(gc, clipRegion);
+ gdk_gc_set_clip_origin(gc, -dst_x, -dst_y);
+ // draw old mask onto new one, with clip
+ gdk_draw_drawable(pixmap, gc, mask, x, y, 0, 0, w, h);
+ g_object_unref(gc);
+ g_object_unref(mask);
+ return pixmap;
}
-static void wx_spline_draw_point_array(wxDC *dc)
+// make a color pixmap from part of a mono one, using text fg/bg colors
+GdkPixmap*
+wxWindowDCImpl::MonoToColor(GdkPixmap* monoPixmap, int x, int y, int w, int h) const
{
- dc->DrawLines(&wx_spline_point_list, 0, 0 );
- wxNode *node = wx_spline_point_list.First();
- while (node)
- {
- wxPoint *point = (wxPoint *)node->Data();
- delete point;
- delete node;
- node = wx_spline_point_list.First();
- }
+ GdkPixmap* pixmap = gdk_pixmap_new(m_gdkwindow, w, h, -1);
+ GdkGCValues gcValues;
+ gcValues.foreground.pixel = m_textForegroundColour.GetColor()->pixel;
+ gcValues.background.pixel = m_textBackgroundColour.GetColor()->pixel;
+ gcValues.stipple = monoPixmap;
+ gcValues.fill = GDK_OPAQUE_STIPPLED;
+ gcValues.ts_x_origin = -x;
+ gcValues.ts_y_origin = -y;
+ GdkGC* gc = gdk_gc_new_with_values(pixmap, &gcValues, GdkGCValuesMask(
+ GDK_GC_FOREGROUND | GDK_GC_BACKGROUND | GDK_GC_STIPPLE | GDK_GC_FILL |
+ GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN));
+ gdk_draw_rectangle(pixmap, gc, true, 0, 0, w, h);
+ g_object_unref(gc);
+ return pixmap;
}
-void wxPaintDC::DrawOpenSpline( wxList *points )
+void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap,
+ wxCoord x, wxCoord y,
+ bool useMask )
{
- wxPoint *p;
- double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
- double x1, y1, x2, y2;
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+ wxCHECK_RET( bitmap.IsOk(), wxT("invalid bitmap") );
- wxNode *node = points->First();
- p = (wxPoint *)node->Data();
+ if (!m_gdkwindow) return;
- x1 = p->x;
- y1 = p->y;
+ const int w = bitmap.GetWidth();
+ const int h = bitmap.GetHeight();
- node = node->Next();
- p = (wxPoint *)node->Data();
+ // notice that as the bitmap is not drawn upside down (or right to left)
+ // even if the corresponding axis direction is inversed, we need to take it
+ // into account when calculating its bounding box
+ CalcBoundingBox(x, y);
+ CalcBoundingBox(x + m_signX*w, y + m_signY*h);
- x2 = p->x;
- y2 = p->y;
- cx1 = (double)((x1 + x2) / 2);
- cy1 = (double)((y1 + y2) / 2);
- cx2 = (double)((cx1 + x2) / 2);
- cy2 = (double)((cy1 + y2) / 2);
+ // device coords
+ int xx = LogicalToDeviceX(x);
+ const int yy = LogicalToDeviceY(y);
+ const int ww = LogicalToDeviceXRel(w);
+ const int hh = LogicalToDeviceYRel(h);
- wx_spline_add_point(x1, y1);
+ if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft)
+ xx -= ww;
- while ((node = node->Next()) != NULL)
+ GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+ // determine clip region overlap
+ int overlap = wxInRegion;
+ if (clipRegion)
{
- p = (wxPoint *)node->Data();
- x1 = x2;
- y1 = y2;
- x2 = p->x;
- y2 = p->y;
- cx4 = (double)(x1 + x2) / 2;
- cy4 = (double)(y1 + y2) / 2;
- cx3 = (double)(x1 + cx4) / 2;
- cy3 = (double)(y1 + cy4) / 2;
+ overlap = m_currentClippingRegion.Contains(xx, yy, ww, hh);
+ if (overlap == wxOutRegion)
+ return;
+ }
- wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
+ const bool isScaled = ww != w || hh != h;
+ const bool hasAlpha = bitmap.HasAlpha();
+ GdkGC* const use_gc = m_penGC;
+
+ GdkPixmap* mask = NULL;
+ // mask does not work when drawing a pixbuf with alpha
+ if (useMask && !hasAlpha)
+ {
+ wxMask* m = bitmap.GetMask();
+ if (m)
+ mask = m->GetBitmap();
+ }
+ if (mask)
+ {
+ g_object_ref(mask);
+ if (isScaled)
+ mask = ScaleMask(mask, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY);
+ if (overlap == wxPartRegion)
+ {
+ // need a new mask that also masks the clipped area,
+ // because gc can't have both a mask and a clip region
+ mask = ClipMask(mask, clipRegion, 0, 0, xx, yy, ww, hh);
+ }
+ gdk_gc_set_clip_mask(use_gc, mask);
+ gdk_gc_set_clip_origin(use_gc, xx, yy);
+ }
- cx1 = cx4;
- cy1 = cy4;
- cx2 = (double)(cx1 + x2) / 2;
- cy2 = (double)(cy1 + y2) / 2;
+ // determine whether to use pixmap or pixbuf
+ GdkPixmap* pixmap = NULL;
+ GdkPixbuf* pixbuf = NULL;
+ if (bitmap.HasPixmap())
+ pixmap = bitmap.GetPixmap();
+ if (pixmap && gdk_drawable_get_depth(pixmap) == 1)
+ {
+ // convert mono pixmap to color using text fg/bg colors
+ pixmap = MonoToColor(pixmap, 0, 0, w, h);
+ }
+ else if (hasAlpha || pixmap == NULL)
+ {
+ pixmap = NULL;
+ pixbuf = bitmap.GetPixbuf();
+ g_object_ref(pixbuf);
+ }
+ else
+ {
+ g_object_ref(pixmap);
}
- wx_spline_add_point( cx1, cy1 );
- wx_spline_add_point( x2, y2 );
+ if (isScaled)
+ {
+ if (pixbuf)
+ pixbuf = Scale(pixbuf, ww, hh, m_scaleX, m_scaleY);
+ else
+ pixbuf = Scale(pixmap, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY);
+ }
- wx_spline_draw_point_array( this );
+ if (pixbuf)
+ {
+ gdk_draw_pixbuf(m_gdkwindow, use_gc, pixbuf,
+ 0, 0, xx, yy, ww, hh, GDK_RGB_DITHER_NORMAL, 0, 0);
+ g_object_unref(pixbuf);
+ }
+ else
+ {
+ gdk_draw_drawable(m_gdkwindow, use_gc, pixmap, 0, 0, xx, yy, ww, hh);
+ }
+
+ if (pixmap)
+ g_object_unref(pixmap);
+ if (mask)
+ {
+ g_object_unref(mask);
+ gdk_gc_set_clip_region(use_gc, clipRegion);
+ }
+}
+
+bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
+ wxCoord width, wxCoord height,
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ wxRasterOperationMode logical_func,
+ bool useMask,
+ wxCoord xsrcMask, wxCoord ysrcMask )
+{
+ wxCHECK_MSG( IsOk(), false, wxT("invalid window dc") );
+ wxCHECK_MSG( source, false, wxT("invalid source dc") );
+
+ if (!m_gdkwindow) return false;
+
+ GdkDrawable* srcDrawable = NULL;
+ GdkPixmap* mask = NULL;
+ wxMemoryDC* memDC = wxDynamicCast(source, wxMemoryDC);
+ if (memDC)
+ {
+ const wxBitmap& bitmap = memDC->GetSelectedBitmap();
+ if (!bitmap.IsOk())
+ return false;
+ srcDrawable = bitmap.GetPixmap();
+ if (useMask)
+ {
+ wxMask* m = bitmap.GetMask();
+ if (m)
+ mask = m->GetBitmap();
+ }
+ }
+ else
+ {
+ wxDCImpl* impl = source->GetImpl();
+ wxWindowDCImpl* gtk_impl = wxDynamicCast(impl, wxWindowDCImpl);
+ if (gtk_impl)
+ srcDrawable = gtk_impl->GetGDKWindow();
+ if (srcDrawable == NULL)
+ return false;
+ }
+
+ CalcBoundingBox(xdest, ydest);
+ CalcBoundingBox(xdest + width, ydest + height);
+
+ // source device coords
+ int src_x = source->LogicalToDeviceX(xsrc);
+ int src_y = source->LogicalToDeviceY(ysrc);
+ int src_w = source->LogicalToDeviceXRel(width);
+ int src_h = source->LogicalToDeviceYRel(height);
+
+ // Clip source rect to source dc.
+ // Only necessary when scaling, to avoid GDK errors when
+ // converting to pixbuf, but no harm in always doing it.
+ // If source rect changes, it also changes the dest rect.
+ wxRect clip;
+ gdk_drawable_get_size(srcDrawable, &clip.width, &clip.height);
+ clip.Intersect(wxRect(src_x, src_y, src_w, src_h));
+ if (src_w != clip.width || src_h != clip.height)
+ {
+ if (clip.width == 0)
+ return true;
+
+ src_w = clip.width;
+ src_h = clip.height;
+ width = source->DeviceToLogicalXRel(src_w);
+ height = source->DeviceToLogicalYRel(src_h);
+ if (src_x != clip.x || src_y != clip.y)
+ {
+ xdest += source->DeviceToLogicalXRel(clip.x - src_x);
+ ydest += source->DeviceToLogicalYRel(clip.y - src_y);
+ src_x = clip.x;
+ src_y = clip.y;
+ }
+ }
+
+ // destination device coords
+ const int dst_x = LogicalToDeviceX(xdest);
+ const int dst_y = LogicalToDeviceY(ydest);
+ const int dst_w = LogicalToDeviceXRel(width);
+ const int dst_h = LogicalToDeviceYRel(height);
+
+ GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+ // determine dest clip region overlap
+ int overlap = wxInRegion;
+ if (clipRegion)
+ {
+ overlap = m_currentClippingRegion.Contains(dst_x, dst_y, dst_w, dst_h);
+ if (overlap == wxOutRegion)
+ return true;
+ }
+
+ const bool isScaled = src_w != dst_w || src_h != dst_h;
+ double scale_x = 0;
+ double scale_y = 0;
+ if (isScaled)
+ {
+ // get source to dest scale
+ double usx, usy, lsx, lsy;
+ source->GetUserScale(&usx, &usy);
+ source->GetLogicalScale(&lsx, &lsy);
+ scale_x = m_scaleX / (usx * lsx);
+ scale_y = m_scaleY / (usy * lsy);
+ }
+
+ GdkGC* const use_gc = m_penGC;
+
+ if (mask)
+ {
+ g_object_ref(mask);
+ int srcMask_x = src_x;
+ int srcMask_y = src_y;
+ if (xsrcMask != -1 || ysrcMask != -1)
+ {
+ srcMask_x = source->LogicalToDeviceX(xsrcMask);
+ srcMask_y = source->LogicalToDeviceY(ysrcMask);
+ }
+ if (isScaled)
+ {
+ mask = ScaleMask(mask, srcMask_x, srcMask_y,
+ src_w, src_h, dst_w, dst_h, scale_x, scale_y);
+ srcMask_x = 0;
+ srcMask_y = 0;
+ }
+ if (overlap == wxPartRegion)
+ {
+ // need a new mask that also masks the clipped area,
+ // because gc can't have both a mask and a clip region
+ mask = ClipMask(mask, clipRegion,
+ srcMask_x, srcMask_y, dst_x, dst_y, dst_w, dst_h);
+ srcMask_x = 0;
+ srcMask_y = 0;
+ }
+ gdk_gc_set_clip_mask(use_gc, mask);
+ gdk_gc_set_clip_origin(use_gc, dst_x - srcMask_x, dst_y - srcMask_y);
+ }
+
+ GdkPixmap* pixmap = NULL;
+ if (gdk_drawable_get_depth(srcDrawable) == 1)
+ {
+ // Convert mono pixmap to color using text fg/bg colors.
+ // Scaling/drawing is simpler if this is done first.
+ pixmap = MonoToColor(srcDrawable, src_x, src_y, src_w, src_h);
+ srcDrawable = pixmap;
+ src_x = 0;
+ src_y = 0;
+ }
+
+ const wxRasterOperationMode logical_func_save = m_logicalFunction;
+ SetLogicalFunction(logical_func);
+ if (memDC == NULL)
+ gdk_gc_set_subwindow(use_gc, GDK_INCLUDE_INFERIORS);
+
+ if (isScaled)
+ {
+ GdkPixbuf* pixbuf = Scale(srcDrawable,
+ src_x, src_y, src_w, src_h, dst_w, dst_h, scale_x, scale_y);
+ gdk_draw_pixbuf(m_gdkwindow, use_gc, pixbuf,
+ 0, 0, dst_x, dst_y, dst_w, dst_h, GDK_RGB_DITHER_NONE, 0, 0);
+ g_object_unref(pixbuf);
+ }
+ else
+ {
+ gdk_draw_drawable(m_gdkwindow, use_gc, srcDrawable,
+ src_x, src_y, dst_x, dst_y, dst_w, dst_h);
+ }
+
+ SetLogicalFunction(logical_func_save);
+ if (memDC == NULL)
+ gdk_gc_set_subwindow(use_gc, GDK_CLIP_BY_CHILDREN);
+
+ if (pixmap)
+ g_object_unref(pixmap);
+ if (mask)
+ {
+ g_object_unref(mask);
+ gdk_gc_set_clip_region(use_gc, clipRegion);
+ }
+ return true;
+}
+
+void wxWindowDCImpl::DoDrawText(const wxString& text,
+ wxCoord xLogical,
+ wxCoord yLogical)
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (!m_gdkwindow) return;
+
+ if (text.empty()) return;
+
+ wxCoord x = XLOG2DEV(xLogical),
+ y = YLOG2DEV(yLogical);
+
+ wxCHECK_RET( m_context, wxT("no Pango context") );
+ wxCHECK_RET( m_layout, wxT("no Pango layout") );
+ wxCHECK_RET( m_fontdesc, wxT("no Pango font description") );
+
+ gdk_pango_context_set_colormap( m_context, m_cmap ); // not needed in gtk+ >= 2.6
+
+ wxCharBuffer data = wxGTK_CONV(text);
+ if ( !data )
+ return;
+
+ pango_layout_set_text(m_layout, data, data.length());
+ const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout);
+
+ int oldSize = 0;
+ const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001;
+ if (isScaled)
+ {
+ // If there is a user or actually any scale applied to
+ // the device context, scale the font.
+
+ // scale font description
+ oldSize = pango_font_description_get_size(m_fontdesc);
+ pango_font_description_set_size(m_fontdesc, int(oldSize * m_scaleY));
+
+ // actually apply scaled font
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+ }
+
+ int w, h;
+ pango_layout_get_pixel_size(m_layout, &w, &h);
+
+ // Draw layout.
+ int x_rtl = x;
+ if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft)
+ x_rtl -= w;
+
+ const GdkColor* bg_col = NULL;
+ if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
+ bg_col = m_textBackgroundColour.GetColor();
+
+ gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x_rtl, y, m_layout, NULL, bg_col);
+
+ if (isScaled)
+ {
+ // reset unscaled size
+ pango_font_description_set_size( m_fontdesc, oldSize );
+
+ // actually apply unscaled font
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+ }
+ if (setAttrs)
+ {
+ // undo underline attributes setting:
+ pango_layout_set_attributes(m_layout, NULL);
+ }
+
+ CalcBoundingBox(xLogical + int(w / m_scaleX), yLogical + int(h / m_scaleY));
+ CalcBoundingBox(xLogical, yLogical);
+}
+
+// TODO: When GTK2.6 is required, merge DoDrawText and DoDrawRotatedText to
+// avoid code duplication
+void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
+{
+ if (!m_gdkwindow || text.empty())
+ return;
+
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ x = XLOG2DEV(x);
+ y = YLOG2DEV(y);
+
+ pango_layout_set_text(m_layout, wxGTK_CONV(text), -1);
+ const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout);
+ int oldSize = 0;
+ const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001;
+ if (isScaled)
+ {
+ //TODO: when Pango >= 1.6 is required, use pango_matrix_scale()
+ // If there is a user or actually any scale applied to
+ // the device context, scale the font.
+
+ // scale font description
+ oldSize = pango_font_description_get_size(m_fontdesc);
+ pango_font_description_set_size(m_fontdesc, int(oldSize * m_scaleY));
+
+ // actually apply scaled font
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+ }
+
+ int w, h;
+ pango_layout_get_pixel_size(m_layout, &w, &h);
+
+ const GdkColor* bg_col = NULL;
+ if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
+ bg_col = m_textBackgroundColour.GetColor();
+
+ // rotate the text
+ PangoMatrix matrix = PANGO_MATRIX_INIT;
+ pango_matrix_rotate (&matrix, angle);
+ pango_context_set_matrix (m_context, &matrix);
+ pango_layout_context_changed (m_layout);
+
+ // To be compatible with MSW, the rotation axis must be in the old
+ // top-left corner.
+ // Calculate the vertices of the rotated rectangle containing the text,
+ // relative to the old top-left vertex.
+ // We could use the matrix for this, but it's simpler with trignonometry.
+ double rad = DegToRad(angle);
+ // the rectangle vertices are counted clockwise with the first one
+ // being at (0, 0)
+ double x2 = w * cos(rad);
+ double y2 = -w * sin(rad); // y axis points to the bottom, hence minus
+ double x4 = h * sin(rad);
+ double y4 = h * cos(rad);
+ double x3 = x4 + x2;
+ double y3 = y4 + y2;
+ // Then we calculate max and min of the rotated rectangle.
+ wxCoord maxX = (wxCoord)(dmax(dmax(0, x2), dmax(x3, x4)) + 0.5),
+ maxY = (wxCoord)(dmax(dmax(0, y2), dmax(y3, y4)) + 0.5),
+ minX = (wxCoord)(dmin(dmin(0, x2), dmin(x3, x4)) - 0.5),
+ minY = (wxCoord)(dmin(dmin(0, y2), dmin(y3, y4)) - 0.5);
+
+ gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY,
+ m_layout, NULL, bg_col);
+
+ if (setAttrs)
+ pango_layout_set_attributes(m_layout, NULL);
+
+ // clean up the transformation matrix
+ pango_context_set_matrix(m_context, NULL);
+
+ if (isScaled)
+ {
+ // reset unscaled size
+ pango_font_description_set_size( m_fontdesc, oldSize );
+
+ // actually apply unscaled font
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+ }
+
+ CalcBoundingBox(x+minX, y+minY);
+ CalcBoundingBox(x+maxX, y+maxY);
+}
+
+void wxWindowDCImpl::DoGetTextExtent(const wxString &string,
+ wxCoord *width, wxCoord *height,
+ wxCoord *descent, wxCoord *externalLeading,
+ const wxFont *theFont) const
+{
+ if ( width )
+ *width = 0;
+ if ( height )
+ *height = 0;
+ if ( descent )
+ *descent = 0;
+ if ( externalLeading )
+ *externalLeading = 0;
+
+ if (string.empty())
+ return;
+
+ // ensure that theFont is always non-NULL
+ if ( !theFont || !theFont->IsOk() )
+ theFont = &m_font;
+
+ // and use it if it's valid
+ if ( theFont->IsOk() )
+ {
+ pango_layout_set_font_description
+ (
+ m_layout,
+ theFont->GetNativeFontInfo()->description
+ );
+ }
+
+ // Set layout's text
+ const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(string, *theFont);
+ if ( !dataUTF8 )
+ {
+ // hardly ideal, but what else can we do if conversion failed?
+ return;
+ }
+
+ pango_layout_set_text(m_layout, dataUTF8, -1);
+
+ int h;
+ pango_layout_get_pixel_size(m_layout, width, &h);
+ if (descent)
+ {
+ PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
+ int baseline = pango_layout_iter_get_baseline(iter);
+ pango_layout_iter_free(iter);
+ *descent = h - PANGO_PIXELS(baseline);
+ }
+ if (height)
+ *height = h;
+
+ // Reset old font description
+ if (theFont->IsOk())
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+}
+
+
+bool wxWindowDCImpl::DoGetPartialTextExtents(const wxString& text,
+ wxArrayInt& widths) const
+{
+ const size_t len = text.length();
+ widths.Empty();
+ widths.Add(0, len);
+
+ if (text.empty())
+ return true;
+
+ // Set layout's text
+ const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(text, m_font);
+ if ( !dataUTF8 )
+ {
+ // hardly ideal, but what else can we do if conversion failed?
+ wxLogLastError(wxT("DoGetPartialTextExtents"));
+ return false;
+ }
+
+ pango_layout_set_text(m_layout, dataUTF8, -1);
+
+ // Calculate the position of each character based on the widths of
+ // the previous characters
+
+ // Code borrowed from Scintilla's PlatGTK
+ PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
+ PangoRectangle pos;
+ pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
+ size_t i = 0;
+ while (pango_layout_iter_next_cluster(iter))
+ {
+ pango_layout_iter_get_cluster_extents(iter, NULL, &pos);
+ int position = PANGO_PIXELS(pos.x);
+ widths[i++] = position;
+ }
+ while (i < len)
+ widths[i++] = PANGO_PIXELS(pos.x + pos.width);
+ pango_layout_iter_free(iter);
+
+ return true;
+}
+
+
+wxCoord wxWindowDCImpl::GetCharWidth() const
+{
+ pango_layout_set_text( m_layout, "H", 1 );
+ int w;
+ pango_layout_get_pixel_size( m_layout, &w, NULL );
+ return w;
+}
+
+wxCoord wxWindowDCImpl::GetCharHeight() const
+{
+ PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context));
+ wxCHECK_MSG( metrics, -1, wxT("failed to get pango font metrics") );
+
+ wxCoord h = PANGO_PIXELS (pango_font_metrics_get_descent (metrics) +
+ pango_font_metrics_get_ascent (metrics));
+ pango_font_metrics_unref (metrics);
+ return h;
+}
+
+void wxWindowDCImpl::Clear()
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (!m_gdkwindow) return;
+
+ int width,height;
+ DoGetSize( &width, &height );
+ gdk_draw_rectangle( m_gdkwindow, m_bgGC, TRUE, 0, 0, width, height );
+}
+
+void wxWindowDCImpl::SetFont( const wxFont &font )
+{
+ m_font = font;
+
+ if (m_font.IsOk())
+ {
+ if (m_fontdesc)
+ pango_font_description_free( m_fontdesc );
+
+ m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
+
+
+ if (m_window)
+ {
+ PangoContext *oldContext = m_context;
+
+ m_context = m_window->GTKGetPangoDefaultContext();
+
+ // If we switch back/forth between different contexts
+ // we also have to create a new layout. I think so,
+ // at least, and it doesn't hurt to do it.
+ if (oldContext != m_context)
+ {
+ if (m_layout)
+ g_object_unref (m_layout);
+
+ m_layout = pango_layout_new( m_context );
+ }
+ }
+
+ pango_layout_set_font_description( m_layout, m_fontdesc );
+ }
+}
+
+void wxWindowDCImpl::SetPen( const wxPen &pen )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (m_pen == pen) return;
+
+ m_pen = pen;
+
+ if (!m_pen.IsOk()) return;
+
+ if (!m_gdkwindow) return;
+
+ gint width = m_pen.GetWidth();
+ if (width <= 0)
+ {
+ // CMB: if width is non-zero scale it with the dc
+ width = 1;
+ }
+ else
+ {
+ // X doesn't allow different width in x and y and so we take
+ // the average
+ double w = 0.5 +
+ ( fabs((double) XLOG2DEVREL(width)) +
+ fabs((double) YLOG2DEVREL(width)) ) / 2.0;
+ width = (int)w;
+ if ( !width )
+ {
+ // width can't be 0 or an internal GTK error occurs inside
+ // gdk_gc_set_dashes() below
+ width = 1;
+ }
+ }
+
+ static const wxGTKDash dotted[] = {1, 1};
+ static const wxGTKDash short_dashed[] = {2, 2};
+ static const wxGTKDash wxCoord_dashed[] = {2, 4};
+ static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3};
+
+ // We express dash pattern in pen width unit, so we are
+ // independent of zoom factor and so on...
+ int req_nb_dash;
+ const wxGTKDash *req_dash;
+
+ GdkLineStyle lineStyle = GDK_LINE_ON_OFF_DASH;
+ switch (m_pen.GetStyle())
+ {
+ case wxPENSTYLE_USER_DASH:
+ req_nb_dash = m_pen.GetDashCount();
+ req_dash = (wxGTKDash*)m_pen.GetDash();
+ break;
+ case wxPENSTYLE_DOT:
+ req_nb_dash = 2;
+ req_dash = dotted;
+ break;
+ case wxPENSTYLE_LONG_DASH:
+ req_nb_dash = 2;
+ req_dash = wxCoord_dashed;
+ break;
+ case wxPENSTYLE_SHORT_DASH:
+ req_nb_dash = 2;
+ req_dash = short_dashed;
+ break;
+ case wxPENSTYLE_DOT_DASH:
+ req_nb_dash = 4;
+ req_dash = dotted_dashed;
+ break;
+
+ case wxPENSTYLE_TRANSPARENT:
+ case wxPENSTYLE_STIPPLE_MASK_OPAQUE:
+ case wxPENSTYLE_STIPPLE:
+ case wxPENSTYLE_SOLID:
+ default:
+ lineStyle = GDK_LINE_SOLID;
+ req_dash = NULL;
+ req_nb_dash = 0;
+ break;
+ }
+
+ if (req_dash && req_nb_dash)
+ {
+ wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
+ if (real_req_dash)
+ {
+ for (int i = 0; i < req_nb_dash; i++)
+ real_req_dash[i] = req_dash[i] * width;
+ gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash );
+ delete[] real_req_dash;
+ }
+ else
+ {
+ // No Memory. We use non-scaled dash pattern...
+ gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
+ }
+ }
+
+ GdkCapStyle capStyle = GDK_CAP_ROUND;
+ switch (m_pen.GetCap())
+ {
+ case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
+ case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; }
+ case wxCAP_ROUND:
+ default:
+ if (width <= 1)
+ {
+ width = 0;
+ capStyle = GDK_CAP_NOT_LAST;
+ }
+ break;
+ }
+
+ GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
+ switch (m_pen.GetJoin())
+ {
+ case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
+ case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
+ case wxJOIN_ROUND:
+ default: { joinStyle = GDK_JOIN_ROUND; break; }
+ }
+
+ gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
+
+ m_pen.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
+}
+
+void wxWindowDCImpl::SetBrush( const wxBrush &brush )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (m_brush == brush) return;
+
+ m_brush = brush;
+
+ if (!m_brush.IsOk()) return;
+
+ if (!m_gdkwindow) return;
+
+ m_brush.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
+
+ gdk_gc_set_fill( m_brushGC, GDK_SOLID );
+
+ if ((m_brush.GetStyle() == wxBRUSHSTYLE_STIPPLE) && (m_brush.GetStipple()->IsOk()))
+ {
+ if (m_brush.GetStipple()->GetDepth() != 1)
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_TILED );
+ gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() );
+ }
+ else
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
+ gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
+ }
+ }
+
+ if ((m_brush.GetStyle() == wxBRUSHSTYLE_STIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
+ {
+ gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED);
+ gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
+ }
+
+ if (m_brush.IsHatch())
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
+ gdk_gc_set_stipple(m_brushGC, GetHatch(m_brush.GetStyle()));
+ }
+}
+
+void wxWindowDCImpl::SetBackground( const wxBrush &brush )
+{
+ /* CMB 21/7/98: Added SetBackground. Sets background brush
+ * for Clear() and bg colour for shapes filled with cross-hatch brush */
+
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (m_backgroundBrush == brush) return;
+
+ m_backgroundBrush = brush;
+
+ if (!m_backgroundBrush.IsOk()) return;
+
+ if (!m_gdkwindow) return;
+
+ wxColor color = m_backgroundBrush.GetColour();
+ color.CalcPixel(m_cmap);
+ const GdkColor* gdkColor = color.GetColor();
+ gdk_gc_set_background(m_brushGC, gdkColor);
+ gdk_gc_set_background(m_penGC, gdkColor);
+ gdk_gc_set_background(m_bgGC, gdkColor);
+ gdk_gc_set_foreground(m_bgGC, gdkColor);
+
+
+ gdk_gc_set_fill( m_bgGC, GDK_SOLID );
+
+ if (m_backgroundBrush.GetStyle() == wxBRUSHSTYLE_STIPPLE)
+ {
+ const wxBitmap* stipple = m_backgroundBrush.GetStipple();
+ if (stipple->IsOk())
+ {
+ if (stipple->GetDepth() != 1)
+ {
+ gdk_gc_set_fill(m_bgGC, GDK_TILED);
+ gdk_gc_set_tile(m_bgGC, stipple->GetPixmap());
+ }
+ else
+ {
+ gdk_gc_set_fill(m_bgGC, GDK_STIPPLED);
+ gdk_gc_set_stipple(m_bgGC, stipple->GetPixmap());
+ }
+ }
+ }
+ else if (m_backgroundBrush.IsHatch())
+ {
+ gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
+ gdk_gc_set_stipple(m_bgGC, GetHatch(m_backgroundBrush.GetStyle()));
+ }
+}
+
+void wxWindowDCImpl::SetLogicalFunction( wxRasterOperationMode function )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (m_logicalFunction == function)
+ return;
+
+ // VZ: shouldn't this be a CHECK?
+ if (!m_gdkwindow)
+ return;
+
+ GdkFunction mode;
+ switch (function)
+ {
+ case wxXOR: mode = GDK_XOR; break;
+ case wxINVERT: mode = GDK_INVERT; break;
+ case wxOR_REVERSE: mode = GDK_OR_REVERSE; break;
+ case wxAND_REVERSE: mode = GDK_AND_REVERSE; break;
+ case wxCLEAR: mode = GDK_CLEAR; break;
+ case wxSET: mode = GDK_SET; break;
+ case wxOR_INVERT: mode = GDK_OR_INVERT; break;
+ case wxAND: mode = GDK_AND; break;
+ case wxOR: mode = GDK_OR; break;
+ case wxEQUIV: mode = GDK_EQUIV; break;
+ case wxNAND: mode = GDK_NAND; break;
+ case wxAND_INVERT: mode = GDK_AND_INVERT; break;
+ case wxCOPY: mode = GDK_COPY; break;
+ case wxNO_OP: mode = GDK_NOOP; break;
+ case wxSRC_INVERT: mode = GDK_COPY_INVERT; break;
+ case wxNOR: mode = GDK_NOR; break;
+ default:
+ wxFAIL_MSG("unknown mode");
+ return;
+ }
+
+ m_logicalFunction = function;
+
+ gdk_gc_set_function( m_penGC, mode );
+ gdk_gc_set_function( m_brushGC, mode );
+
+ // to stay compatible with wxMSW, we don't apply ROPs to the text
+ // operations (i.e. DrawText/DrawRotatedText).
+ // True, but mono-bitmaps use the m_textGC and they use ROPs as well.
+ gdk_gc_set_function( m_textGC, mode );
+}
+
+void wxWindowDCImpl::SetTextForeground( const wxColour &col )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ // don't set m_textForegroundColour to an invalid colour as we'd crash
+ // later then (we use m_textForegroundColour.GetColor() without checking
+ // in a few places)
+ if ( !col.IsOk() || (m_textForegroundColour == col) )
+ return;
+
+ m_textForegroundColour = col;
+
+ if ( m_gdkwindow )
+ {
+ m_textForegroundColour.CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
+ }
+}
+
+void wxWindowDCImpl::SetTextBackground( const wxColour &col )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ // same as above
+ if ( !col.IsOk() || (m_textBackgroundColour == col) )
+ return;
+
+ m_textBackgroundColour = col;
+
+ if ( m_gdkwindow )
+ {
+ m_textBackgroundColour.CalcPixel( m_cmap );
+ gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
+ }
+}
+
+void wxWindowDCImpl::SetBackgroundMode( int mode )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ m_backgroundMode = mode;
+}
+
+void wxWindowDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) )
+{
+ wxFAIL_MSG( wxT("wxWindowDCImpl::SetPalette not implemented") );
+}
+
+void wxWindowDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (!m_gdkwindow) return;
+
+ wxRect rect;
+ rect.x = XLOG2DEV(x);
+ rect.y = YLOG2DEV(y);
+ rect.width = XLOG2DEVREL(width);
+ rect.height = YLOG2DEVREL(height);
+
+ if (m_window && m_window->m_wxwindow &&
+ (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
+ {
+ rect.x -= rect.width;
+ }
+
+ DoSetDeviceClippingRegion(wxRegion(rect));
+}
+
+void wxWindowDCImpl::DoSetDeviceClippingRegion( const wxRegion ®ion )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ if (region.Empty())
+ {
+ DestroyClippingRegion();
+ return;
+ }
+
+ if (!m_gdkwindow) return;
+
+ if (!m_currentClippingRegion.IsNull())
+ m_currentClippingRegion.Intersect( region );
+ else
+ m_currentClippingRegion.Union( region );
+
+#if USE_PAINT_REGION
+ if (!m_paintClippingRegion.IsNull())
+ m_currentClippingRegion.Intersect( m_paintClippingRegion );
+#endif
+
+ wxCoord xx, yy, ww, hh;
+ m_currentClippingRegion.GetBox( xx, yy, ww, hh );
+ wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh );
+
+ GdkRegion* gdkRegion = m_currentClippingRegion.GetRegion();
+ gdk_gc_set_clip_region(m_penGC, gdkRegion);
+ gdk_gc_set_clip_region(m_brushGC, gdkRegion);
+ gdk_gc_set_clip_region(m_textGC, gdkRegion);
+ gdk_gc_set_clip_region(m_bgGC, gdkRegion);
+}
+
+void wxWindowDCImpl::DestroyClippingRegion()
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+
+ wxDCImpl::DestroyClippingRegion();
+
+ m_currentClippingRegion.Clear();
+
+#if USE_PAINT_REGION
+ if (!m_paintClippingRegion.IsEmpty())
+ m_currentClippingRegion.Union( m_paintClippingRegion );
+#endif
+
+ if (!m_gdkwindow) return;
+
+ GdkRegion* gdkRegion = NULL;
+ if (!m_currentClippingRegion.IsEmpty())
+ gdkRegion = m_currentClippingRegion.GetRegion();
+
+ gdk_gc_set_clip_region(m_penGC, gdkRegion);
+ gdk_gc_set_clip_region(m_brushGC, gdkRegion);
+ gdk_gc_set_clip_region(m_textGC, gdkRegion);
+ gdk_gc_set_clip_region(m_bgGC, gdkRegion);
+}
+
+void wxWindowDCImpl::Destroy()
+{
+ if (m_penGC) wxFreePoolGC( m_penGC );
+ m_penGC = NULL;
+ if (m_brushGC) wxFreePoolGC( m_brushGC );
+ m_brushGC = NULL;
+ if (m_textGC) wxFreePoolGC( m_textGC );
+ m_textGC = NULL;
+ if (m_bgGC) wxFreePoolGC( m_bgGC );
+ m_bgGC = NULL;
+}
+
+void wxWindowDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
+{
+ m_deviceOriginX = x;
+ m_deviceOriginY = y;
+
+ ComputeScaleAndOrigin();
+}
+
+void wxWindowDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+{
+ m_signX = (xLeftRight ? 1 : -1);
+ m_signY = (yBottomUp ? -1 : 1);
+
+ if (m_window && m_window->m_wxwindow &&
+ (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
+ m_signX = -m_signX;
+
+ ComputeScaleAndOrigin();
+}
+
+void wxWindowDCImpl::ComputeScaleAndOrigin()
+{
+ const wxRealPoint origScale(m_scaleX, m_scaleY);
+
+ wxDCImpl::ComputeScaleAndOrigin();
+
+ // if scale has changed call SetPen to recalulate the line width
+ if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.IsOk() )
+ {
+ // this is a bit artificial, but we need to force wxDC to think the pen
+ // has changed
+ wxPen pen = m_pen;
+ m_pen = wxNullPen;
+ SetPen( pen );
+ }
+}
+
+// Resolution in pixels per logical inch
+wxSize wxWindowDCImpl::GetPPI() const
+{
+ return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5));
+}
+
+int wxWindowDCImpl::GetDepth() const
+{
+ return gdk_drawable_get_depth(m_gdkwindow);
+}
+
+//-----------------------------------------------------------------------------
+// wxClientDCImpl
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl)
+
+wxClientDCImpl::wxClientDCImpl( wxDC *owner )
+ : wxWindowDCImpl( owner )
+{
+}
+
+wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
+ : wxWindowDCImpl( owner, win )
+{
+ wxCHECK_RET( win, wxT("NULL window in wxClientDCImpl::wxClientDC") );
+
+#ifdef __WXUNIVERSAL__
+ wxPoint ptOrigin = win->GetClientAreaOrigin();
+ SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
+ wxSize size = win->GetClientSize();
+ DoSetClippingRegion(0, 0, size.x, size.y);
+#endif
+ // __WXUNIVERSAL__
+}
+
+void wxClientDCImpl::DoGetSize(int *width, int *height) const
+{
+ wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
+
+ m_window->GetClientSize( width, height );
+}
+
+//-----------------------------------------------------------------------------
+// wxPaintDCImpl
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxPaintDCImpl, wxClientDCImpl)
+
+// Limit the paint region to the window size. Sometimes
+// the paint region is too big, and this risks X11 errors
+static void wxLimitRegionToSize(wxRegion& region, const wxSize& sz)
+{
+ wxRect originalRect = region.GetBox();
+ wxRect rect(originalRect);
+ if (rect.width + rect.x > sz.x)
+ rect.width = sz.x - rect.x;
+ if (rect.height + rect.y > sz.y)
+ rect.height = sz.y - rect.y;
+ if (rect != originalRect)
+ {
+ region = wxRegion(rect);
+ wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
+ originalRect.x, originalRect.y, originalRect.width, originalRect.height,
+ rect.x, rect.y, rect.width, rect.height);
+ }
+}
+
+wxPaintDCImpl::wxPaintDCImpl( wxDC *owner )
+ : wxClientDCImpl( owner )
+{
+}
+
+wxPaintDCImpl::wxPaintDCImpl( wxDC *owner, wxWindow *win )
+ : wxClientDCImpl( owner, win )
+{
+#if USE_PAINT_REGION
+ if (!win->m_clipPaintRegion)
+ return;
+
+ wxSize sz = win->GetSize();
+ m_paintClippingRegion = win->m_nativeUpdateRegion;
+ wxLimitRegionToSize(m_paintClippingRegion, sz);
+
+ GdkRegion *region = m_paintClippingRegion.GetRegion();
+ if ( region )
+ {
+ m_currentClippingRegion.Union( m_paintClippingRegion );
+ wxLimitRegionToSize(m_currentClippingRegion, sz);
+
+ if (sz.x <= 0 || sz.y <= 0)
+ return ;
+
+ gdk_gc_set_clip_region( m_penGC, region );
+ gdk_gc_set_clip_region( m_brushGC, region );
+ gdk_gc_set_clip_region( m_textGC, region );
+ gdk_gc_set_clip_region( m_bgGC, region );
+ }
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// wxDCModule
+// ----------------------------------------------------------------------------
+
+class wxDCModule : public wxModule
+{
+public:
+ bool OnInit();
+ void OnExit();
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxDCModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
+
+bool wxDCModule::OnInit()
+{
+ wxInitGCPool();
+ return true;
+}
+
+void wxDCModule::OnExit()
+{
+ wxCleanUpGCPool();
+
+ for (int i = wxBRUSHSTYLE_LAST_HATCH - wxBRUSHSTYLE_FIRST_HATCH; i--; )
+ {
+ if (hatches[i])
+ g_object_unref(hatches[i]);
+ }
}
projects / wxWidgets.git / blobdiff