#include "wx/gtk/win_gtk.h"
-#include <math.h> // for floating-point functions
+#include "wx/math.h" // for floating-point functions
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
g_return_if_fail (drawable != NULL);
g_return_if_fail (src != NULL);
g_return_if_fail (gc != NULL);
-
+
#ifdef __WXGTK20__
gint src_width, src_height;
gdk_drawable_get_size(src, &src_width, &src_height);
GdkWindowPrivate *drawable_private;
GdkWindowPrivate *src_private;
GdkGCPrivate *gc_private;
-
+
drawable_private = (GdkWindowPrivate*) drawable;
src_private = (GdkWindowPrivate*) src;
if (drawable_private->destroyed || src_private->destroyed)
gint src_height = src_private->height;
gc_private = (GdkGCPrivate*) gc;
-
+
if (width == -1) width = src_width;
if (height == -1) height = src_height;
-
+
XCopyPlane( drawable_private->xdisplay,
src_private->xwindow,
drawable_private->xwindow,
// 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.
+ // in wxGetPoolGC.
wxFAIL_MSG( wxT("Cannot allocate GC pool") );
return;
}
-
+
// Zero initial pool.
memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));
}
static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
{
wxGC *pptr;
-
+
// Look for an available GC.
for (int i = 0; i < wxGCPoolSize; i++)
{
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;
+ wxGCPool[i].m_used = false;
}
if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
{
- wxGCPool[i].m_used = TRUE;
+ 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));
+ (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.
+ 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;
-
+ 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") );
{
if (wxGCPool[i].m_gc == gc)
{
- wxGCPool[i].m_used = FALSE;
+ wxGCPool[i].m_used = false;
return;
}
}
m_textGC = (GdkGC *) NULL;
m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
- m_isMemDC = FALSE;
- m_isScreenDC = FALSE;
+ m_isMemDC = false;
+ m_isScreenDC = false;
m_owner = (wxWindow *)NULL;
#ifdef __WXGTK20__
m_context = (PangoContext *)NULL;
m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
m_owner = (wxWindow *)NULL;
- m_isMemDC = FALSE;
- m_isScreenDC = FALSE;
+ m_isMemDC = false;
+ m_isScreenDC = false;
m_font = window->GetFont();
GtkWidget *widget = window->m_wxwindow;
if (!m_window)
{
// Don't report problems as per MSW.
- m_ok = TRUE;
+ m_ok = true;
return;
}
wxWindowDC::~wxWindowDC()
{
Destroy();
-
+
#ifdef __WXGTK20__
if (m_layout)
g_object_unref( G_OBJECT( m_layout ) );
void wxWindowDC::SetUpDC()
{
- m_ok = TRUE;
+ m_ok = true;
wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
m_owner->GetSize(width, height);
}
-extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
const wxColour & col, int style);
bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
wxImage image = bitmap.ConvertToImage();
col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
- return TRUE;
+ return true;
}
void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
return;
}
- for (int i = 0; i < n; i++)
+ for (int i = 0; i < n; i++)
{
wxCoord x1 = XLOG2DEV(points[i].x + xoffset);
wxCoord y1 = YLOG2DEV(points[i].y + yoffset);
if (m_pen.GetStyle() != wxTRANSPARENT)
{
+/*
for (i = 0 ; i < n ; i++)
{
gdk_draw_line( m_window, m_penGC,
gdkpoints[(i+1)%n].x,
gdkpoints[(i+1)%n].y);
}
+*/
+ gdk_draw_polygon( m_window, m_penGC, FALSE, gdkpoints, n );
+
}
}
void wxWindowDC::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, (bool)TRUE );
+ DoDrawBitmap( (const wxBitmap&)icon, x, y, true );
}
void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
return;
}
- // scale bitmap if required
+ // scale bitmap if required
wxBitmap use_bitmap = bitmap;
if ((w != ww) || (h != hh))
use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh );
-
+
+#if !GTK_CHECK_VERSION(2,2,0)
+ // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code.
+ // Pixbufs-based bitmaps with alpha channel don't have a mask, so we
+ // have to call GetPixmap() here -- it converts the pixbuf into pixmap
+ // and also creates the mask as a side-effect:
+ use_bitmap.GetPixmap();
+#endif
+
// apply mask if any
GdkBitmap *mask = (GdkBitmap *) NULL;
if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
GdkBitmap *new_mask = (GdkBitmap*) NULL;
-
+
if (useMask && mask)
{
if (!m_currentClippingRegion.IsNull())
gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
gdk_gc_unref( gc );
}
-
+
if (is_mono)
{
if (new_mask)
gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
gdk_wx_draw_bitmap( bitmap, gc, use_bitmap.GetBitmap(), 0, 0, 0, 0, -1, -1 );
-
+
gdk_draw_drawable( m_window, m_textGC, bitmap, 0, 0, xx, yy, -1, -1 );
-
+
gdk_bitmap_unref( bitmap );
gdk_gc_unref( gc );
#else
}
else
{
- gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+#if GTK_CHECK_VERSION(2,2,0)
+ if (use_bitmap.HasPixbuf())
+ {
+ gdk_draw_pixbuf(m_window, m_penGC,
+ use_bitmap.GetPixbuf(),
+ 0, 0, xx, yy, -1, -1,
+ GDK_RGB_DITHER_NORMAL, xx, yy);
+ }
+ else
+#endif
+ {
+ gdk_draw_pixmap(m_window, m_penGC,
+ use_bitmap.GetPixmap(),
+ 0, 0, xx, yy, -1, -1);
+ }
}
// remove mask again if any
gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
}
}
-
+
if (new_mask)
gdk_bitmap_unref( new_mask );
}
bool useMask,
wxCoord xsrcMask, wxCoord ysrcMask )
{
- wxCHECK_MSG( Ok(), FALSE, wxT("invalid window dc") );
+ wxCHECK_MSG( Ok(), false, wxT("invalid window dc") );
- wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
+ wxCHECK_MSG( source, false, wxT("invalid source dc") );
- if (!m_window) return FALSE;
+ if (!m_window) return false;
// transform the source DC coords to the device ones
xsrc = source->XLOG2DEV(xsrc);
wxClientDC *srcDC = (wxClientDC*)source;
wxMemoryDC *memDC = (wxMemoryDC*)source;
- bool use_bitmap_method = FALSE;
- bool is_mono = FALSE;
+ bool use_bitmap_method = false;
+ bool is_mono = false;
// TODO: use the mask origin when drawing transparently
if (xsrcMask == -1 && ysrcMask == -1)
if (srcDC->m_isMemDC)
{
- if (!memDC->m_selected.Ok()) return FALSE;
+ if (!memDC->m_selected.Ok()) return false;
is_mono = (memDC->m_selected.GetDepth() == 1);
// we HAVE TO use the direct way for memory dcs
// that have mask since the XCopyArea doesn't know
// about masks
- use_bitmap_method = TRUE;
+ use_bitmap_method = true;
}
else if (is_mono)
{
// we HAVE TO use the direct way for memory dcs
// that are bitmaps because XCopyArea doesn't cope
// with different bit depths
- use_bitmap_method = TRUE;
+ use_bitmap_method = true;
}
else if ((xsrc == 0) && (ysrc == 0) &&
(width == memDC->m_selected.GetWidth()) &&
// in the memory dc is copied in which case XCopyArea
// wouldn't be able able to boost performace by reducing
// the area to be scaled
- use_bitmap_method = TRUE;
+ use_bitmap_method = true;
}
else
{
- use_bitmap_method = FALSE;
+ use_bitmap_method = false;
}
}
wxRegion tmp( xx,yy,ww,hh );
tmp.Intersect( m_currentClippingRegion );
if (tmp.IsEmpty())
- return TRUE;
+ return true;
}
int old_logical_func = m_logicalFunction;
wxCoord bm_width = memDC->m_selected.GetWidth();
wxCoord bm_height = memDC->m_selected.GetHeight();
- // get clip coords
- wxRegion tmp( xx,yy,ww,hh );
- tmp.Intersect( m_currentClippingRegion );
- wxCoord cx,cy,cw,ch;
- tmp.GetBox(cx,cy,cw,ch);
-
+ // Get clip coords for the bitmap. If we don't
+ // use wxBitmap::Rescale(), which can clip the
+ // bitmap, these are the same as the original
+ // coordinates
+ wxCoord cx = xx;
+ wxCoord cy = yy;
+ wxCoord cw = ww;
+ wxCoord ch = hh;
+
// interpret userscale of src too
double xsc,ysc;
memDC->GetUserScale(&xsc,&ysc);
wxCoord bm_ww = XLOG2DEVREL( bm_width );
wxCoord bm_hh = YLOG2DEVREL( bm_height );
- // scale bitmap if required
+ // Scale bitmap if required
wxBitmap use_bitmap;
-
- if ((bm_width != bm_ww) || (bm_height != bm_hh))
+ if ((memDC->m_selected.GetWidth()!= bm_ww) || ( memDC->m_selected.GetHeight()!= bm_hh))
{
- use_bitmap = memDC->m_selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh);
+ // This indicates that the blitting code below will get
+ // a clipped bitmap and therefore needs to move the origin
+ // accordingly
+ wxRegion tmp( xx,yy,ww,hh );
+ tmp.Intersect( m_currentClippingRegion );
+ tmp.GetBox(cx,cy,cw,ch);
+
+ // Scale and clipped bitmap
+ use_bitmap = memDC->m_selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh);
}
else
{
- // FIXME: use cx,cy,cw,ch here, too?
+ // Don't scale bitmap
use_bitmap = memDC->m_selected;
}
if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
GdkBitmap *new_mask = (GdkBitmap*) NULL;
-
+
if (useMask && mask)
{
if (!m_currentClippingRegion.IsNull())
gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
gdk_wx_draw_bitmap( bitmap, gc, use_bitmap.GetBitmap(), 0, 0, 0, 0, -1, -1 );
-
+
gdk_draw_drawable( m_window, m_textGC, bitmap, xsrc, ysrc, cx, cy, cw, ch );
-
+
gdk_bitmap_unref( bitmap );
gdk_gc_unref( gc );
#else
gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
}
}
-
+
if (new_mask)
gdk_bitmap_unref( new_mask );
}
tmp.Intersect( m_currentClippingRegion );
wxCoord cx,cy,cw,ch;
tmp.GetBox(cx,cy,cw,ch);
-
- // rescale bitmap
+
+ // rescale bitmap
wxBitmap bitmap = memDC->m_selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh );
// draw scaled bitmap
}
else
{
- // No scaling and not a memory dc with a mask either
+ // No scaling and not a memory dc with a mask either
// copy including child window contents
gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
}
SetLogicalFunction( old_logical_func );
-
- return TRUE;
+
+ return true;
}
void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (!m_window) return;
-
+
if (text.empty()) return;
#ifndef __WXGTK20__
wxCHECK_RET( m_layout, wxT("no Pango layout") );
wxCHECK_RET( m_fontdesc, wxT("no Pango font description") );
+ bool underlined = m_font.Ok() && m_font.GetUnderlined();
+
#if wxUSE_UNICODE
const wxCharBuffer data = wxConvUTF8.cWC2MB( text );
#else
const wxWCharBuffer wdata = wxConvLocal.cMB2WC( text );
+ if ( !wdata )
+ return;
const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
#endif
- pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+ size_t datalen = strlen((const char*)data);
+ pango_layout_set_text( m_layout, (const char*) 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);
+ pango_layout_set_attributes(m_layout, attrs);
+ pango_attr_list_unref(attrs);
+ }
int w,h;
-
- if (abs(m_scaleY - 1.0) < 0.00001)
+
+ if (fabs(m_scaleY - 1.0) > 0.00001)
{
// If there is a user or actually any scale applied to
// the device context, scale the font.
-
+
// scale font description
gint oldSize = pango_font_description_get_size( m_fontdesc );
double size = oldSize;
size = size * m_scaleY;
pango_font_description_set_size( m_fontdesc, (gint)size );
-
+
// actually apply scaled font
pango_layout_set_font_description( m_layout, m_fontdesc );
-
+
pango_layout_get_pixel_size( m_layout, &w, &h );
if ( m_backgroundMode == wxSOLID )
{
gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
}
-
+
// Draw layout.
gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
-
+
// reset unscaled size
pango_font_description_set_size( m_fontdesc, oldSize );
-
+
// actually apply unscaled font
pango_layout_set_font_description( m_layout, m_fontdesc );
}
// Draw layout.
gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
}
-
+
+ if (underlined)
+ {
+ // undo underline attributes setting:
+ pango_layout_set_attributes(m_layout, NULL);
+ }
+
wxCoord width = w;
wxCoord height = h;
-
+
#else // GTK+ 1.x
wxCoord width = gdk_string_width( font, text.mbc_str() );
wxCoord height = font->ascent + font->descent;
CalcBoundingBox (x, y);
}
+
+// TODO: There is an example of rotating text with GTK2 that would probably be
+// a better approach here:
+// http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
+
void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
{
if (angle == 0.0)
if (!m_window) return;
-#ifdef __WXGTK20__
+ wxCoord w;
+ wxCoord h;
+
+#ifdef __WXGTK20__
// implement later without GdkFont for GTK 2.0
- return;
+ GetTextExtent(text, &w, &h, NULL,NULL, &m_font);
+
#else
GdkFont *font = m_font.GetInternalFont( m_scaleY );
wxCHECK_RET( font, wxT("invalid font") );
// the size of the text
- wxCoord w = gdk_string_width( font, text.mbc_str() );
- wxCoord h = font->ascent + font->descent;
-
+ w = gdk_string_width( font, text.mbc_str() );
+ h = font->ascent + font->descent;
+#endif
// draw the string normally
wxBitmap src(w, h);
wxMemoryDC dc;
dc.SelectObject(src);
dc.SetFont(GetFont());
- dc.SetBackground(*wxWHITE_BRUSH);
+ dc.SetBackground(*wxBLACK_BRUSH);
dc.SetBrush(*wxBLACK_BRUSH);
dc.Clear();
+ dc.SetTextForeground( *wxWHITE );
dc.DrawText(text, 0, 0);
dc.SelectObject(wxNullBitmap);
minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
- // prepare to blit-with-rotate the bitmap to the DC
- wxImage image = src.ConvertToImage();
-
- GdkColor *colText = m_textForegroundColour.GetColor(),
- *colBack = m_textBackgroundColour.GetColor();
- bool textColSet = TRUE;
+ wxImage image = src.ConvertToImage();
- unsigned char *data = image.GetData();
+ 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 );
- // paint pixel by pixel
- for ( wxCoord srcX = 0; srcX < w; srcX++ )
- {
- for ( wxCoord srcY = 0; srcY < h; srcY++ )
- {
- // transform source coords to dest coords
- double r = sqrt((double)srcX*srcX + srcY*srcY);
- double angleOrig = atan2((double)srcY, (double)srcX) - rad;
- wxCoord dstX = (wxCoord)(r*cos(angleOrig) + 0.5),
- dstY = (wxCoord)(r*sin(angleOrig) + 0.5);
-
- // black pixel?
- bool textPixel = data[(srcY*w + srcX)*3] == 0;
- if ( textPixel || (m_backgroundMode == wxSOLID) )
- {
- // change colour if needed
- if ( textPixel != textColSet )
- {
- gdk_gc_set_foreground( m_textGC, textPixel ? colText
- : colBack );
-
- textColSet = textPixel;
- }
-
- // don't use DrawPoint() because it uses the current pen
- // colour, and we don't need it here
- gdk_draw_point( m_window, m_textGC,
- XLOG2DEV(x) + dstX, YLOG2DEV(y) + dstY );
- }
- }
- }
// it would be better to draw with non underlined font and draw the line
// manually here (it would be more straight...)
}
#endif // 0
- // restore the font colour
- gdk_gc_set_foreground( m_textGC, colText );
-
// update the bounding box
CalcBoundingBox(x + minX, y + minY);
CalcBoundingBox(x + maxX, y + maxY);
-#endif
}
void wxWindowDC::DoGetTextExtent(const wxString &string,
wxCoord *descent, wxCoord *externalLeading,
wxFont *theFont) const
{
- if (string.IsEmpty())
+ if ( width )
+ *width = 0;
+ if ( height )
+ *height = 0;
+ if ( descent )
+ *descent = 0;
+ if ( externalLeading )
+ *externalLeading = 0;
+
+ if (string.empty())
{
- if (width) (*width) = 0;
- if (height) (*height) = 0;
return;
}
-
+
#ifdef __WXGTK20__
// Set new font description
if (theFont)
pango_layout_set_font_description( m_layout, theFont->GetNativeFontInfo()->description );
-
+
// Set layout's text
#if wxUSE_UNICODE
const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
- pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+ const char *dataUTF8 = (const char *)data;
#else
const wxWCharBuffer wdata = wxConvLocal.cMB2WC( string );
+ if ( !wdata )
+ {
+ if (width) (*width) = 0;
+ if (height) (*height) = 0;
+ return;
+ }
const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
- pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+ const char *dataUTF8 = (const char *)data;
#endif
-
+
+ if ( !dataUTF8 )
+ {
+ // hardly ideal, but what else can we do if conversion failed?
+ return;
+ }
+
+ pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
+
int w,h;
pango_layout_get_pixel_size( m_layout, &w, &h );
-
- if (width) (*width) = (wxCoord) w;
- if (height) (*height) = (wxCoord) h;
+
+ if (width)
+ *width = (wxCoord) w;
+ if (height)
+ *height = (wxCoord) h;
if (descent)
{
- // Do something about metrics here. TODO.
- (*descent) = 0;
+ 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 (externalLeading) (*externalLeading) = 0; // ??
-
+
// Reset old font description
if (theFont)
pango_layout_set_font_description( m_layout, m_fontdesc );
-#else
+#else // GTK+ 1.x
wxFont fontToUse = m_font;
- if (theFont) fontToUse = *theFont;
-
+ if (theFont)
+ fontToUse = *theFont;
+
GdkFont *font = fontToUse.GetInternalFont( m_scaleY );
- if (width) (*width) = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
- if (height) (*height) = wxCoord((font->ascent + font->descent) / m_scaleY);
- if (descent) (*descent) = wxCoord(font->descent / m_scaleY);
- if (externalLeading) (*externalLeading) = 0; // ??
-#endif
+ if ( !font )
+ return;
+
+ if (width)
+ *width = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
+ if (height)
+ *height = wxCoord((font->ascent + font->descent) / m_scaleY);
+ if (descent)
+ *descent = wxCoord(font->descent / m_scaleY);
+#endif // GTK+ 2/1
}
wxCoord wxWindowDC::GetCharWidth() const
void wxWindowDC::SetFont( const wxFont &font )
{
m_font = font;
-
+
#ifdef __WXGTK20__
if (m_font.Ok())
{
if (m_fontdesc)
pango_font_description_free( m_fontdesc );
-
+
m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
-
-
+
+
if (m_owner)
{
PangoContext *oldContext = m_context;
-
+
// We might want to use the X11 context for faster
// rendering on screen
if (m_font.GetNoAntiAliasing())
m_context = m_owner->GtkGetPangoX11Context();
else
m_context = m_owner->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.
+ // at least, and it doesn't hurt to do it.
if (oldContext != m_context)
{
if (m_layout)
g_object_unref( G_OBJECT( m_layout ) );
-
+
m_layout = pango_layout_new( m_context );
}
}
-
+
pango_layout_set_font_description( m_layout, m_fontdesc );
}
#endif
gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
}
- if (IS_HATCH(m_brush.GetStyle()))
+ if (m_brush.IsHatch())
{
gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
}
}
- if (IS_HATCH(m_backgroundBrush.GetStyle()))
+ if (m_backgroundBrush.IsHatch())
{
gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC)
+// 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);
+ }
+}
+
wxPaintDC::wxPaintDC( wxWindow *win )
: wxClientDC( win )
{
if (!win->m_clipPaintRegion)
return;
+ wxSize sz = win->GetSize();
m_paintClippingRegion = win->GetUpdateRegion();
+ wxLimitRegionToSize(m_paintClippingRegion, sz);
+
GdkRegion *region = m_paintClippingRegion.GetRegion();
if ( region )
{
- m_paintClippingRegion = win->GetUpdateRegion();
- GdkRegion *region = m_paintClippingRegion.GetRegion();
- if ( region )
- {
- m_currentClippingRegion.Union( m_paintClippingRegion );
+ m_currentClippingRegion.Union( m_paintClippingRegion );
+ wxLimitRegionToSize(m_currentClippingRegion, sz);
- 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 );
- }
+ 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 // USE_PAINT_REGION
}
bool wxDCModule::OnInit()
{
wxInitGCPool();
- return TRUE;
+ return true;
}
void wxDCModule::OnExit()
projects / wxWidgets.git / blobdiff