/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/dcclient.cpp
-// Purpose:
+// Purpose: wxWindowDCImpl implementation
// Author: Robert Roebling
// RCS-ID: $Id$
// Copyright: (c) 1998 Robert Roebling, Chris Breeze
// The realloc failed. Fall through to error.
wxFAIL_MSG( wxT("No GC available") );
- return (GdkGC*) NULL;
+ return NULL;
}
static void wxFreePoolGC( GdkGC *gc )
wxWindowDCImpl::wxWindowDCImpl( wxDC *owner ) :
wxGTKDCImpl( owner )
{
- m_gdkwindow = (GdkWindow*) NULL;
- m_penGC = (GdkGC *) NULL;
- m_brushGC = (GdkGC *) NULL;
- m_textGC = (GdkGC *) NULL;
- m_bgGC = (GdkGC *) NULL;
- m_cmap = (GdkColormap *) NULL;
+ m_gdkwindow = NULL;
+ m_penGC = NULL;
+ m_brushGC = NULL;
+ m_textGC = NULL;
+ m_bgGC = NULL;
+ m_cmap = NULL;
m_isScreenDC = false;
- m_context = (PangoContext *)NULL;
- m_layout = (PangoLayout *)NULL;
- m_fontdesc = (PangoFontDescription *)NULL;
+ m_context = NULL;
+ m_layout = NULL;
+ m_fontdesc = NULL;
}
wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
{
wxASSERT_MSG( window, wxT("DC needs a window") );
- m_gdkwindow = (GdkWindow*) NULL;
- m_penGC = (GdkGC *) NULL;
- m_brushGC = (GdkGC *) NULL;
- m_textGC = (GdkGC *) NULL;
- m_bgGC = (GdkGC *) NULL;
- m_cmap = (GdkColormap *) NULL;
+ 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, so we will
- // use the parent window here then.
+ // code should still be able to create wxClientDCs for them
if ( !widget )
{
- window = window->GetParent();
- widget = window->m_wxwindow;
- }
+ widget = window->m_widget;
+
+ wxCHECK_RET(widget, "DC needs a widget");
- wxASSERT_MSG( widget, wxT("DC needs a widget") );
+ m_gdkwindow = widget->window;
+ if (GTK_WIDGET_NO_WINDOW(widget))
+ SetDeviceLocalOrigin(widget->allocation.x, widget->allocation.y);
+ }
- m_context = window->GtkGetPangoDefaultContext();
+ m_context = window->GTKGetPangoDefaultContext();
m_layout = pango_layout_new( m_context );
m_fontdesc = pango_font_description_copy( widget->style->font_desc );
- m_gdkwindow = widget->window;
-
// Window not realized ?
if (!m_gdkwindow)
{
return;
}
- m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget );
+ m_cmap = gtk_widget_get_colormap(widget);
SetUpDC();
m_window = window;
- if (m_window && m_window->m_wxwindow &&
+ if (m_window && m_window->m_wxwindow &&
(m_window->GetLayoutDirection() == wxLayout_RightToLeft))
{
// reverse sense
}
if (!done)
- {
+ {
if (m_isScreenDC)
{
m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_SCREEN );
gdk_gc_set_function( m_penGC, GDK_COPY );
/* clipping */
- gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
- gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
- gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
- gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
+ 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, _T("GetSize() doesn't work without window") );
+ 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, int style)
+ const wxColour& col, wxFloodFillStyle style)
{
#if wxUSE_IMAGE
extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
- const wxColour & col, int style);
+ const wxColour & col, wxFloodFillStyle style);
return wxDoFloodFill( GetOwner(), x, y, col, style);
#else
bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
{
-#if wxUSE_IMAGE
- // Generic (and therefore rather inefficient) method.
- // Could be improved.
- wxMemoryDC memdc;
- wxBitmap bitmap(1, 1);
- memdc.SelectObject(bitmap);
- memdc.Blit(0, 0, 1, 1, GetOwner(), x1, y1);
- memdc.SelectObject(wxNullBitmap);
-
- wxImage image = bitmap.ConvertToImage();
- col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
+ 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;
-#else // !wxUSE_IMAGE
- wxUnusedVar(x1);
- wxUnusedVar(y1);
- wxUnusedVar(col);
-
- return false;
-#endif // wxUSE_IMAGE/!wxUSE_IMAGE
}
void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
-
+
if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
{
if (m_gdkwindow)
delete[] gpts;
}
-void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
+void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ wxPolygonFillMode WXUNUSED(fillStyle) )
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
// Make a new mask from part of a mask and a clip region.
// Return new mask, unref old one.
static GdkPixmap*
-ClipMask(GdkPixmap* mask, const GdkRegion* clipRegion, int x, int y, int dst_x, int dst_y, int w, int h)
+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;
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 + w, y + h);
+ CalcBoundingBox(x + m_signX*w, y + m_signY*h);
// device coords
int xx = LogicalToDeviceX(x);
if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft)
xx -= ww;
- const GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+ GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
// determine clip region overlap
int overlap = wxInRegion;
if (clipRegion)
wxCoord width, wxCoord height,
wxDC *source,
wxCoord xsrc, wxCoord ysrc,
- int logical_func,
+ wxRasterOperationMode logical_func,
bool useMask,
wxCoord xsrcMask, wxCoord ysrcMask )
{
const int dst_w = LogicalToDeviceXRel(width);
const int dst_h = LogicalToDeviceYRel(height);
- const GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+ GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
// determine dest clip region overlap
int overlap = wxInRegion;
if (clipRegion)
src_y = 0;
}
- const int logical_func_save = m_logicalFunction;
+ const wxRasterOperationMode logical_func_save = m_logicalFunction;
SetLogicalFunction(logical_func);
if (memDC == NULL)
gdk_gc_set_subwindow(use_gc, GDK_INCLUDE_INFERIORS);
return true;
}
-void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoDrawText(const wxString& text,
+ wxCoord xLogical,
+ wxCoord yLogical)
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
if (text.empty()) return;
- x = XLOG2DEV(x);
- y = YLOG2DEV(y);
+ wxCoord x = XLOG2DEV(xLogical),
+ y = YLOG2DEV(yLogical);
wxCHECK_RET( m_context, wxT("no Pango context") );
wxCHECK_RET( m_layout, wxT("no Pango layout") );
x_rtl -= w;
const GdkColor* bg_col = NULL;
- if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
+ 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)
pango_layout_set_attributes(m_layout, NULL);
}
- CalcBoundingBox(x + int(w / m_scaleX), y + int(h / m_scaleY));
- CalcBoundingBox(x, y);
+ 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
+// 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 )
{
pango_layout_get_pixel_size(m_layout, &w, &h);
const GdkColor* bg_col = NULL;
- if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
+ if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
bg_col = m_textBackgroundColour.GetColor();
// rotate the text
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
+ // 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,
+ // 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.
+ // 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
+ // 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
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,
+ gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY,
m_layout, NULL, bg_col);
if (m_font.GetUnderlined())
wxCoord wxWindowDCImpl::GetCharHeight() const
{
PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context));
- wxCHECK_MSG( metrics, -1, _T("failed to get pango font metrics") );
+ 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_get_ascent (metrics));
pango_font_metrics_unref (metrics);
return h;
}
{
PangoContext *oldContext = m_context;
- m_context = m_window->GtkGetPangoDefaultContext();
+ m_context = m_window->GTKGetPangoDefaultContext();
// If we switch back/forth between different contexts
// we also have to create a new layout. I think so,
case wxPENSTYLE_SOLID:
default:
lineStyle = GDK_LINE_SOLID;
- req_dash = (wxGTKDash*)NULL;
+ req_dash = NULL;
req_nb_dash = 0;
break;
}
}
}
-void wxWindowDCImpl::SetLogicalFunction( int function )
+void wxWindowDCImpl::SetLogicalFunction( wxRasterOperationMode function )
{
wxCHECK_RET( IsOk(), wxT("invalid window dc") );
case wxSRC_INVERT: mode = GDK_COPY_INVERT; break;
case wxNOR: mode = GDK_NOR; break;
default:
- wxFAIL_MSG( wxT("unsupported logical function") );
- mode = GDK_COPY;
+ wxFAIL_MSG("unknown mode");
+ return;
}
m_logicalFunction = function;
rect.width = XLOG2DEVREL(width);
rect.height = YLOG2DEVREL(height);
- if (m_window && m_window->m_wxwindow &&
+ if (m_window && m_window->m_wxwindow &&
(m_window->GetLayoutDirection() == wxLayout_RightToLeft))
{
rect.x -= rect.width;
void wxWindowDCImpl::Destroy()
{
if (m_penGC) wxFreePoolGC( m_penGC );
- m_penGC = (GdkGC*) NULL;
+ m_penGC = NULL;
if (m_brushGC) wxFreePoolGC( m_brushGC );
- m_brushGC = (GdkGC*) NULL;
+ m_brushGC = NULL;
if (m_textGC) wxFreePoolGC( m_textGC );
- m_textGC = (GdkGC*) NULL;
+ m_textGC = NULL;
if (m_bgGC) wxFreePoolGC( m_bgGC );
- m_bgGC = (GdkGC*) NULL;
+ m_bgGC = NULL;
}
void wxWindowDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
m_signX = (xLeftRight ? 1 : -1);
m_signY = (yBottomUp ? -1 : 1);
- if (m_window && m_window->m_wxwindow &&
+ if (m_window && m_window->m_wxwindow &&
(m_window->GetLayoutDirection() == wxLayout_RightToLeft))
m_signX = -m_signX;
wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
: wxWindowDCImpl( owner, win )
{
- wxCHECK_RET( win, _T("NULL window in wxClientDCImpl::wxClientDC") );
+ 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
+#endif
// __WXUNIVERSAL__
}
void wxClientDCImpl::DoGetSize(int *width, int *height) const
{
- wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );
+ wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
m_window->GetClientSize( width, height );
}
gdk_gc_set_clip_region( m_textGC, region );
gdk_gc_set_clip_region( m_bgGC, region );
}
-#endif
+#endif
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff