// Purpose:
// Author: Robert Roebling
// Created: 01/02/97
-// Id:
+// RCS-ID: $Id$
// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#endif
#include "wx/dcclient.h"
+#include "wx/dcmemory.h"
//-----------------------------------------------------------------------------
// local data
#define RAD2DEG 57.2957795131
+//-----------------------------------------------------------------------------
+// temporary implementation of the missing GDK function
+//-----------------------------------------------------------------------------
+#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);
+}
+
//-----------------------------------------------------------------------------
// wxPaintDC
//-----------------------------------------------------------------------------
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_cmap = gtk_widget_get_colormap( window->m_wxwindow );
else
m_cmap = gtk_widget_get_colormap( window->m_widget );
+
+ m_isDrawable = TRUE;
+
SetUpDC();
long x = 0;
{
if (!Ok()) return;
- if (width<0) { width=-width; x=x-width; }
- if (height<0) { height=-height; y=y-height; }
-
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
- long ww = XLOG2DEVREL(width);
- long hh = YLOG2DEVREL(height);
+ 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-1, hh-1, 0, long(sa*64) );
+ 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, 0, long(ea*64) );
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end );
};
void wxPaintDC::DrawPoint( long x, long y )
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_brushGC, x1, y1, x2, y2 );
+ gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
};
};
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_brushGC, x1, y1, x2, y2 );
+ gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
node = node->Next();
};
};
-void wxPaintDC::DrawPolygon( int WXUNUSED(n), wxPoint WXUNUSED(points)[],
- long WXUNUSED(xoffset), long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
-{
- if (!Ok()) return;
+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 *WXUNUSED(lines), long WXUNUSED(xoffset),
- long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
-{
- if (!Ok()) return;
+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 )
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
- long ww = XLOG2DEVREL(width);
- long hh = YLOG2DEVREL(height);
+ 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 (!Ok()) return;
- if (width<0) { width=-width; x=x-width; }
- if (height<0) { height=-height; y=y-height; }
-
if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
- long ww = XLOG2DEVREL(width);
- long hh = YLOG2DEVREL(height);
+ 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, hh );
- gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd );
+ 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 );
{
if (!Ok()) return;
- if (width<0) { width=-width; x=x-width; }
- if (height<0) { height=-height; y=y-height; }
-
long xx = XLOG2DEV(x);
long yy = YLOG2DEV(y);
- long ww = XLOG2DEVREL(width);
- long hh = YLOG2DEVREL(height);
+ 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 (!Ok()) return FALSE;
- wxClientDC *csrc = (wxClientDC*)source;
+ // 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(),
return TRUE;
};
-void wxPaintDC::DrawText( const wxString &text, long x, long y, bool WXUNUSED(use16) )
+void wxPaintDC::DrawText( const wxString &text, long x, long y, bool
+WXUNUSED(use16) )
{
if (!Ok()) return;
-
+
GdkFont *font = m_font.GetInternalFont( m_scaleY );
- gdk_draw_string( m_window, font, m_textGC,
- XLOG2DEV(x),
- YLOG2DEV(y) + font->ascent, text );
+
+ x = XLOG2DEV(x);
+ y = YLOG2DEV(y);
+
+ // 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 );
+ 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;
if (!Ok()) return;
GdkFont *font = m_font.GetInternalFont( m_scaleY );
- if (width) (*width) = gdk_string_width( font, string );
- if (height) (*height) = font->ascent + font->descent;
+ if (width) (*width) = long(gdk_string_width( font, string ) / m_scaleX);
+ if (height) (*height) = long((font->ascent + font->descent) / m_scaleY);
};
long wxPaintDC::GetCharWidth(void)
{
if (!Ok()) return;
- DestroyClippingRegion();
- gdk_window_clear( m_window );
+// 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 (!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())
GdkCapStyle capStyle = GDK_CAP_ROUND;
switch (m_pen.GetCap())
{
- case wxCAP_ROUND: { capStyle = GDK_CAP_ROUND; break; };
+ 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; };
};
};
};
+// 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;
gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
};
-void wxPaintDC::SetBackgroundMode( int WXUNUSED(mode) )
+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) )
{
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 );
projects / wxWidgets.git / blobdiff