+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.IsNonTransparent() )
+ {
+ ++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 );
+ }
+
+ 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)
+{
+ 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;
+}
+
+// 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);
+}
+
+// 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)
+{
+ 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;
+}
+
+// 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)
+{
+ 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;
+}
+
+// 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
+{
+ 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 wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap,
+ wxCoord x, wxCoord y,
+ bool useMask )
+{
+ wxCHECK_RET( IsOk(), wxT("invalid window dc") );
+ wxCHECK_RET( bitmap.IsOk(), wxT("invalid bitmap") );
+
+ if (!m_gdkwindow) return;
+
+ const int w = bitmap.GetWidth();
+ const int h = bitmap.GetHeight();
+
+ // 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);
+
+ // device coords
+ int xx = LogicalToDeviceX(x);
+ const int yy = LogicalToDeviceY(y);
+ const int ww = LogicalToDeviceXRel(w);
+ const int hh = LogicalToDeviceYRel(h);
+
+ if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft)
+ xx -= ww;
+
+ GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+ // determine clip region overlap
+ int overlap = wxInRegion;
+ if (clipRegion)
+ {
+ overlap = m_currentClippingRegion.Contains(xx, yy, ww, hh);
+ if (overlap == wxOutRegion)
+ return;
+ }
+
+ 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);
+ }
+
+ // 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);
+ }
+
+ 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);
+ }
+
+ 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
+
+ bool underlined = m_font.IsOk() && m_font.GetUnderlined();
+
+ wxCharBuffer data = wxGTK_CONV(text);
+ if ( !data )
+ 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);
+
+ 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_attributes(m_layout, attrs);
+ pango_attr_list_unref(attrs);
+ }
+
+ 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 (underlined)
+ {
+ // 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") );
+
+#if __WXGTK26__
+ if (!gtk_check_version(2,6,0))
+ {
+ 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 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 (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;
+ }
projects / wxWidgets.git / blobdiff