// Name: src/gtk/dcclient.cpp
// Purpose: wxWindowDCImpl implementation
// Author: Robert Roebling
-// RCS-ID: $Id$
// Copyright: (c) 1998 Robert Roebling, Chris Breeze
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/gtk/private.h"
#include "wx/gtk/private/object.h"
+#include "wx/private/textmeasure.h"
//-----------------------------------------------------------------------------
// local defines
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] = gdk_bitmap_create_from_data(NULL, bdiag_bits, bdiag_width, bdiag_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(bdiag);
break;
case wxBRUSHSTYLE_CROSSDIAG_HATCH:
- hatches[i] = gdk_bitmap_create_from_data(NULL, cdiag_bits, cdiag_width, cdiag_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(cdiag);
break;
case wxBRUSHSTYLE_CROSS_HATCH:
- hatches[i] = gdk_bitmap_create_from_data(NULL, cross_bits, cross_width, cross_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(cross);
break;
case wxBRUSHSTYLE_FDIAGONAL_HATCH:
- hatches[i] = gdk_bitmap_create_from_data(NULL, fdiag_bits, fdiag_width, fdiag_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(fdiag);
break;
case wxBRUSHSTYLE_HORIZONTAL_HATCH:
- hatches[i] = gdk_bitmap_create_from_data(NULL, horiz_bits, horiz_width, horiz_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(horiz);
break;
case wxBRUSHSTYLE_VERTICAL_HATCH:
- hatches[i] = gdk_bitmap_create_from_data(NULL, verti_bits, verti_width, verti_height);
+ hatches[i] = CREATE_FROM_XBM_DATA(verti);
break;
}
+
+#undef CREATE_FROM_XBM_DATA
}
return hatches[i];
}
wxTEXT_SCREEN,
wxBG_SCREEN,
wxPEN_SCREEN,
- wxBRUSH_SCREEN
+ wxBRUSH_SCREEN,
+ wxTEXT_COLOUR_ALPHA,
+ wxBG_COLOUR_ALPHA,
+ wxPEN_COLOUR_ALPHA,
+ wxBRUSH_COLOUR_ALPHA
};
struct wxGC
wxCHECK_RET(widget, "DC needs a widget");
m_gdkwindow = widget->window;
- if (GTK_WIDGET_NO_WINDOW(widget))
+ if (!gtk_widget_get_has_window(widget))
SetDeviceLocalOrigin(widget->allocation.x, widget->allocation.y);
}
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 );
CalcBoundingBox (x, y);
}
-void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
+void wxWindowDCImpl::DoDrawLines( int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset )
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
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);
+ const GdkPoint* gpts = reinterpret_cast<const GdkPoint*>(points);
+ GdkPoint* gpts_alloc = NULL;
if (doScale)
- gpts = new GdkPoint[n];
+ {
+ gpts_alloc = new GdkPoint[n];
+ gpts = gpts_alloc;
+ }
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);
+ gpts_alloc[i].x = XLOG2DEV(points[i].x + xoffset);
+ gpts_alloc[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);
+ gdk_draw_lines( m_gdkwindow, m_penGC, (GdkPoint*) gpts, n);
- if (doScale)
- delete[] gpts;
+ delete[] gpts_alloc;
}
-void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[],
+void wxWindowDCImpl::DoDrawPolygon( int n, const wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
wxPolygonFillMode WXUNUSED(fillStyle) )
{
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);
+ const GdkPoint* gdkpoints = reinterpret_cast<const GdkPoint*>(points);
+ GdkPoint* gdkpoints_alloc = NULL;
if (doScale)
- gdkpoints = new GdkPoint[n];
+ {
+ gdkpoints_alloc = new GdkPoint[n];
+ gdkpoints = gdkpoints_alloc;
+ }
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);
+ gdkpoints_alloc[i].x = XLOG2DEV(points[i].x + xoffset);
+ gdkpoints_alloc[i].y = YLOG2DEV(points[i].y + yoffset);
}
CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
}
bool originChanged;
DrawingSetup(gc, originChanged);
- gdk_draw_polygon(m_gdkwindow, gc, true, gdkpoints, n);
+ gdk_draw_polygon(m_gdkwindow, gc, true, (GdkPoint*) gdkpoints, n);
if (originChanged)
gdk_gc_set_ts_origin(gc, 0, 0);
gdkpoints[(i+1)%n].y);
}
*/
- gdk_draw_polygon( m_gdkwindow, m_penGC, FALSE, gdkpoints, n );
+ gdk_draw_polygon( m_gdkwindow, m_penGC, FALSE, (GdkPoint*) gdkpoints, n );
}
}
- if (doScale)
- delete[] gdkpoints;
+ delete[] gdkpoints_alloc;
}
void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
// If the pen is transparent pen we increase the size
// for better compatibility with other platforms.
- if ( m_pen.IsNonTransparent() )
+ if (m_pen.IsTransparent())
{
++ww;
++hh;
DoDrawBitmap( (const wxBitmap&)icon, x, y, true );
}
-// scale a pixbuf, return new pixbuf, unref old one
+// scale a pixbuf
static GdkPixbuf*
Scale(GdkPixbuf* pixbuf, int dst_w, int dst_h, double sx, double sy)
{
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;
}
-// scale part of a pixmap using pixbuf scaling, return pixbuf
+// scale part of a pixmap using pixbuf scaling
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);
+ GdkPixbuf* pixbuf2 = Scale(pixbuf, dst_w, dst_h, sx, sy);
+ g_object_unref(pixbuf);
+ return pixbuf2;
}
-// scale part of a mask pixmap, return new mask, unref old one
+// scale part of a mask pixmap
static GdkPixmap*
ScaleMask(GdkPixmap* mask, int x, int y, int w, int h, int dst_w, int dst_h, double sx, double sy)
{
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;
}
// 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)
{
// 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;
}
{
wxMask* m = bitmap.GetMask();
if (m)
- mask = m->GetBitmap();
+ mask = *m;
}
+
+ GdkPixmap* mask_new = NULL;
if (mask)
{
- g_object_ref(mask);
if (isScaled)
+ {
mask = ScaleMask(mask, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY);
+ mask_new = mask;
+ }
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);
+ if (mask_new)
+ g_object_unref(mask_new);
+ mask_new = mask;
}
gdk_gc_set_clip_mask(use_gc, mask);
gdk_gc_set_clip_origin(use_gc, xx, yy);
// determine whether to use pixmap or pixbuf
GdkPixmap* pixmap = NULL;
+ GdkPixmap* pixmap_new = NULL;
GdkPixbuf* pixbuf = NULL;
+ GdkPixbuf* pixbuf_new = 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);
+ if (gdk_drawable_get_depth(m_gdkwindow) != 1)
+ {
+ // convert mono pixmap to color using text fg/bg colors
+ pixmap = MonoToColor(pixmap, 0, 0, w, h);
+ pixmap_new = pixmap;
+ }
}
else if (hasAlpha || pixmap == NULL)
- {
- pixmap = NULL;
pixbuf = bitmap.GetPixbuf();
- g_object_ref(pixbuf);
- }
- else
- {
- g_object_ref(pixmap);
- }
if (isScaled)
{
pixbuf = Scale(pixbuf, ww, hh, m_scaleX, m_scaleY);
else
pixbuf = Scale(pixmap, 0, 0, w, h, ww, hh, m_scaleX, m_scaleY);
+
+ pixbuf_new = pixbuf;
}
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 (pixbuf_new)
+ g_object_unref(pixbuf_new);
+ if (pixmap_new)
+ g_object_unref(pixmap_new);
if (mask)
{
- g_object_unref(mask);
gdk_gc_set_clip_region(use_gc, clipRegion);
+
+ // Notice that we can only release the mask now, we can't do it before
+ // the calls to gdk_draw_xxx() above as they crash with X error with
+ // GTK+ up to 2.20.1 (i.e. it works with 2.20 but is known to not work
+ // with 2.16.1 and below).
+ if (mask_new)
+ g_object_unref(mask_new);
}
}
{
wxMask* m = bitmap.GetMask();
if (m)
- mask = m->GetBitmap();
+ mask = *m;
}
}
else
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);
}
+ GdkPixmap* mask_new = NULL;
if (isScaled)
{
mask = ScaleMask(mask, srcMask_x, srcMask_y,
src_w, src_h, dst_w, dst_h, scale_x, scale_y);
+ mask_new = mask;
srcMask_x = 0;
srcMask_y = 0;
}
// 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);
+ if (mask_new)
+ g_object_unref(mask_new);
+ mask_new = mask;
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);
+ if (mask_new)
+ g_object_unref(mask_new);
}
GdkPixmap* pixmap = NULL;
- if (gdk_drawable_get_depth(srcDrawable) == 1)
+ if (gdk_drawable_get_depth(srcDrawable) == 1 &&
+ (gdk_drawable_get_depth(m_gdkwindow) != 1 || isScaled))
{
// Convert mono pixmap to color using text fg/bg colors.
// Scaling/drawing is simpler if this is done first.
if (pixmap)
g_object_unref(pixmap);
if (mask)
- {
- g_object_unref(mask);
gdk_gc_set_clip_region(use_gc, clipRegion);
- }
+
return true;
}
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
-
- bool underlined = m_font.IsOk() && m_font.GetUnderlined();
+ DoDrawRotatedText(text, xLogical, yLogical, 0);
+}
- wxCharBuffer data = wxGTK_CONV(text);
- if ( !data )
+void wxWindowDCImpl::DoDrawRotatedText(const wxString& text, int xLogical, int yLogical, double angle)
+{
+ if (!m_gdkwindow || text.empty())
return;
- size_t datalen = strlen(data);
-
- // in Pango >= 1.16 the "underline of leading/trailing spaces" bug
- // has been fixed and thus the hack implemented below should never be used
- static bool pangoOk = !wx_pango_version_check(1, 16, 0);
-
- bool needshack = underlined && !pangoOk;
-
- if (needshack)
- {
- // a PangoLayout which has leading/trailing spaces with underlined font
- // is not correctly drawn by this pango version: Pango won't underline the spaces.
- // This can be a problem; e.g. wxHTML rendering of underlined text relies on
- // this behaviour. To workaround this problem, we use a special hack here
- // suggested by pango maintainer Behdad Esfahbod: we prepend and append two
- // empty space characters and give them a dummy colour attribute.
- // This will force Pango to underline the leading/trailing spaces, too.
-
- wxCharBuffer data_tmp(datalen + 6);
- // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
- memcpy(data_tmp.data(), "\342\200\214", 3);
- // copy the user string
- memcpy(data_tmp.data() + 3, data, datalen);
- // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format
- memcpy(data_tmp.data() + 3 + datalen, "\342\200\214", 3);
-
- data = data_tmp;
- datalen += 6;
- }
-
- pango_layout_set_text(m_layout, data, datalen);
- if (underlined)
- {
- PangoAttrList *attrs = pango_attr_list_new();
- PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
- a->start_index = 0;
- a->end_index = datalen;
- pango_attr_list_insert(attrs, a);
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
- if (needshack)
- {
- // dummy colour for the leading space
- a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
- a->start_index = 0;
- a->end_index = 1;
- pango_attr_list_insert(attrs, a);
-
- // dummy colour for the trailing space
- a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614);
- a->start_index = datalen - 1;
- a->end_index = datalen;
- pango_attr_list_insert(attrs, a);
- }
+ pango_layout_set_text(m_layout, wxGTK_CONV(text), -1);
+ const bool setAttrs = m_font.GTKSetPangoAttrs(m_layout);
- pango_layout_set_attributes(m_layout, attrs);
- pango_attr_list_unref(attrs);
- }
+ const GdkColor* bg_col = NULL;
+ if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
+ bg_col = m_textBackgroundColour.GetColor();
- int oldSize = 0;
- const bool isScaled = fabs(m_scaleY - 1.0) > 0.00001;
- if (isScaled)
+ PangoMatrix matrix = PANGO_MATRIX_INIT;
+ if (!wxIsSameDouble(m_scaleX, 1) || !wxIsSameDouble(m_scaleY, 1) || !wxIsNullDouble(angle))
{
- // 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 );
+ pango_matrix_scale(&matrix, m_scaleX, m_scaleY);
+ pango_matrix_rotate(&matrix, angle);
+ pango_context_set_matrix(m_context, &matrix);
+ pango_layout_context_changed(m_layout);
}
int w, h;
pango_layout_get_pixel_size(m_layout, &w, &h);
- // Draw layout.
- int x_rtl = x;
+ int x = LogicalToDeviceX(xLogical);
+ int y = LogicalToDeviceY(yLogical);
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();
+ x -= LogicalToDeviceXRel(w);
- gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x_rtl, y, m_layout, NULL, bg_col);
-
- if (isScaled)
+ if (wxIsNullDouble(angle))
{
- // 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 (underlined)
- {
- // undo underline attributes setting:
- pango_layout_set_attributes(m_layout, NULL);
+ CalcBoundingBox(xLogical, yLogical);
+ CalcBoundingBox(xLogical + w, yLogical + h);
}
-
- 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") );
-
-#if __WXGTK26__
- if (!gtk_check_version(2,6,0))
+ else
{
- x = XLOG2DEV(x);
- y = YLOG2DEV(y);
-
- pango_layout_set_text(m_layout, wxGTK_CONV(text), -1);
-
- if (m_font.GetUnderlined())
- {
- PangoAttrList *attrs = pango_attr_list_new();
- PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
- pango_attr_list_insert(attrs, a);
- pango_layout_set_attributes(m_layout, attrs);
- pango_attr_list_unref(attrs);
- }
-
- 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 x2 = w * matrix.xx;
+ double y2 = w * matrix.yx;
+ double x4 = h * matrix.xy;
+ double y4 = h * matrix.yy;
double x3 = x4 + x2;
double y3 = y4 + y2;
// Then we calculate max and min of the rotated rectangle.
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 (m_font.GetUnderlined())
- 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);
- }
- else
-#endif //__WXGTK26__
- {
-#if wxUSE_IMAGE
- if ( wxIsNullDouble(angle) )
- {
- DoDrawText(text, x, y);
- return;
+ x += minX;
+ y += minY;
+ CalcBoundingBox(DeviceToLogicalX(x), DeviceToLogicalY(y));
+ CalcBoundingBox(DeviceToLogicalX(x + maxX - minX), DeviceToLogicalY(y + maxY - minY));
}
- wxCoord w;
- wxCoord h;
-
- // TODO: implement later without GdkFont for GTK 2.0
- DoGetTextExtent(text, &w, &h, NULL,NULL, &m_font);
-
- // draw the string normally
- wxBitmap src(w, h);
- wxMemoryDC dc;
- dc.SelectObject(src);
- dc.SetFont(GetFont());
- dc.SetBackground(*wxBLACK_BRUSH);
- dc.SetBrush(*wxBLACK_BRUSH);
- dc.Clear();
- dc.SetTextForeground( *wxWHITE );
- dc.DrawText(text, 0, 0);
- dc.SelectObject(wxNullBitmap);
-
- // Calculate the size of the rotated bounding box.
- double rad = DegToRad(angle);
- double dx = cos(rad),
- dy = sin(rad);
-
- // the rectngle vertices are counted clockwise with the first one being at
- // (0, 0) (or, rather, at (x, y))
- double x2 = w*dx,
- y2 = -w*dy; // y axis points to the bottom, hence minus
- double x4 = h*dy,
- y4 = h*dx;
- double x3 = x4 + x2,
- y3 = y4 + y2;
-
- // calc max and min
- wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5),
- maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5),
- minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
- minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
-
-
- wxImage image = src.ConvertToImage();
-
- image.ConvertColourToAlpha( m_textForegroundColour.Red(),
- m_textForegroundColour.Green(),
- m_textForegroundColour.Blue() );
- image = image.Rotate( rad, wxPoint(0,0) );
-
- int i_angle = (int) angle;
- i_angle = i_angle % 360;
- if (i_angle < 0)
- i_angle += 360;
- int xoffset = 0;
- if ((i_angle >= 90.0) && (i_angle < 270.0))
- xoffset = image.GetWidth();
- int yoffset = 0;
- if ((i_angle >= 0.0) && (i_angle < 180.0))
- yoffset = image.GetHeight();
-
- if ((i_angle >= 0) && (i_angle < 90))
- yoffset -= (int)( cos(rad)*h );
- if ((i_angle >= 90) && (i_angle < 180))
- xoffset -= (int)( sin(rad)*h );
- if ((i_angle >= 180) && (i_angle < 270))
- yoffset -= (int)( cos(rad)*h );
- if ((i_angle >= 270) && (i_angle < 360))
- xoffset -= (int)( sin(rad)*h );
-
- int i_x = x - xoffset;
- int i_y = y - yoffset;
-
- src = image;
- DoDrawBitmap( src, i_x, i_y, true );
-
-
- // it would be better to draw with non underlined font and draw the line
- // manually here (it would be more straight...)
-#if 0
- if ( m_font.GetUnderlined() )
- {
- gdk_draw_line( m_gdkwindow, m_textGC,
- XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent),
- XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent));
- }
-#endif // 0
-
- // update the bounding box
- CalcBoundingBox(x + minX, y + minY);
- CalcBoundingBox(x + maxX, y + maxY);
-#else // !wxUSE_IMAGE
- wxUnusedVar(text);
- wxUnusedVar(x);
- wxUnusedVar(y);
- wxUnusedVar(angle);
-#endif // wxUSE_IMAGE/!wxUSE_IMAGE
- }
+ gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x, y, m_layout, NULL, bg_col);
+
+ pango_context_set_matrix(m_context, NULL);
+ if (setAttrs)
+ pango_layout_set_attributes(m_layout, NULL);
}
void wxWindowDCImpl::DoGetTextExtent(const wxString &string,
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
+ // ensure we work with a valid font
+ const wxFont *fontToUse;
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);
+ fontToUse = &m_font;
+ else
+ fontToUse = theFont;
- 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;
+ wxCHECK_RET( fontToUse->IsOk(), wxT("invalid font") );
- // Reset old font description
- if (theFont->IsOk())
- pango_layout_set_font_description( m_layout, m_fontdesc );
+ wxTextMeasure txm(GetOwner(), fontToUse);
+ txm.GetTextExtent(string, width, height, descent, externalLeading);
}
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);
+ wxCHECK_MSG( m_font.IsOk(), false, wxT("Invalid font") );
- // 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;
+ wxTextMeasure txm(GetOwner(), &m_font);
+ return txm.GetPartialTextExtents(text, widths, m_scaleX);
}
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() );
+ gdk_gc_set_stipple( m_textGC, *m_brush.GetStipple()->GetMask() );
}
if (m_brush.IsHatch())
wxDCImpl::ComputeScaleAndOrigin();
- // if scale has changed call SetPen to recalulate the line width
+ // if scale has changed call SetPen to recalculate 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
return gdk_drawable_get_depth(m_gdkwindow);
}
-
//-----------------------------------------------------------------------------
// wxClientDCImpl
//-----------------------------------------------------------------------------
{
wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
- m_window->GetClientSize( width, height );
+ m_window->GetClientSize(width, height);
}
//-----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff