/////////////////////////////////////////////////////////////////////////////
-// Name: dc.cpp
+// Name: src/gtk/dc.cpp
// Purpose:
// Author: Robert Roebling
// RCS-ID: $Id$
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
+#ifdef __WXGTK3__
+
+#include "wx/window.h"
+#include "wx/dcclient.h"
+#include "wx/dcmemory.h"
+#include "wx/dcscreen.h"
+#include "wx/icon.h"
+#include "wx/gtk/dc.h"
+
+#include <gtk/gtk.h>
+
+wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner)
+ : base_type(owner)
+{
+ m_width = 0;
+ m_height = 0;
+}
+
+wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, int)
+ : base_type(owner, 0)
+{
+ m_width = 0;
+ m_height = 0;
+}
+
+wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, wxWindow* window)
+ : base_type(owner, 0)
+{
+ m_window = window;
+ m_font = window->GetFont();
+ m_textForegroundColour = window->GetForegroundColour();
+ m_textBackgroundColour = window->GetBackgroundColour();
+ m_width = 0;
+ m_height = 0;
+}
+
+void wxGTKCairoDCImpl::DoDrawBitmap(const wxBitmap& bitmap, int x, int y, bool useMask)
+{
+ wxCHECK_RET(IsOk(), "invalid DC");
+
+ cairo_t* cr = NULL;
+ if (m_graphicContext)
+ cr = static_cast<cairo_t*>(m_graphicContext->GetNativeContext());
+ if (cr)
+ {
+ cairo_save(cr);
+ bitmap.Draw(cr, x, y, useMask, &m_textForegroundColour, &m_textBackgroundColour);
+ cairo_restore(cr);
+ }
+}
+
+void wxGTKCairoDCImpl::DoDrawIcon(const wxIcon& icon, int x, int y)
+{
+ DoDrawBitmap(icon, x, y, true);
+}
+
+#if wxUSE_IMAGE
+bool wxDoFloodFill(wxDC* dc, int x, int y, const wxColour& col, wxFloodFillStyle style);
+
+bool wxGTKCairoDCImpl::DoFloodFill(int x, int y, const wxColour& col, wxFloodFillStyle style)
+{
+ return wxDoFloodFill(GetOwner(), x, y, col, style);
+}
+#endif
+
+wxBitmap wxGTKCairoDCImpl::DoGetAsBitmap(const wxRect* /*subrect*/) const
+{
+ wxFAIL_MSG("DoGetAsBitmap not implemented");
+ return wxBitmap();
+}
+
+bool wxGTKCairoDCImpl::DoGetPixel(int x, int y, wxColour* col) const
+{
+ if (col)
+ {
+ cairo_t* cr = NULL;
+ if (m_graphicContext)
+ cr = static_cast<cairo_t*>(m_graphicContext->GetNativeContext());
+ if (cr)
+ {
+ cairo_surface_t* surface = cairo_get_target(cr);
+ x = LogicalToDeviceX(x);
+ y = LogicalToDeviceY(y);
+ GdkPixbuf* pixbuf = gdk_pixbuf_get_from_surface(surface, x, y, 1, 1);
+ if (pixbuf)
+ {
+ const guchar* src = gdk_pixbuf_get_pixels(pixbuf);
+ col->Set(src[0], src[1], src[2]);
+ g_object_unref(pixbuf);
+ return true;
+ }
+ *col = wxColour();
+ }
+ }
+ return false;
+}
+
+void wxGTKCairoDCImpl::DoGetSize(int* width, int* height) const
+{
+ if (width)
+ *width = m_width;
+ if (height)
+ *height = m_height;
+}
+
+bool wxGTKCairoDCImpl::DoStretchBlit(int xdest, int ydest, int dstWidth, int dstHeight, wxDC* source, int xsrc, int ysrc, int srcWidth, int srcHeight, wxRasterOperationMode rop, bool useMask, int xsrcMask, int ysrcMask)
+{
+ wxCHECK_MSG(IsOk(), false, "invalid DC");
+ wxCHECK_MSG(source && source->IsOk(), false, "invalid source DC");
+
+ cairo_t* cr = NULL;
+ if (m_graphicContext)
+ cr = static_cast<cairo_t*>(m_graphicContext->GetNativeContext());
+ cairo_t* cr_src = NULL;
+ wxGraphicsContext* gc_src = source->GetGraphicsContext();
+ if (gc_src)
+ cr_src = static_cast<cairo_t*>(gc_src->GetNativeContext());
+
+ if (cr == NULL || cr_src == NULL)
+ return false;
+
+ const int xsrc_dev = source->LogicalToDeviceX(xsrc);
+ const int ysrc_dev = source->LogicalToDeviceY(ysrc);
+
+ cairo_surface_t* surface = cairo_get_target(cr_src);
+ cairo_surface_flush(surface);
+ cairo_save(cr);
+ cairo_translate(cr, xdest, ydest);
+ cairo_rectangle(cr, 0, 0, dstWidth, dstHeight);
+ double sx, sy;
+ source->GetUserScale(&sx, &sy);
+ cairo_scale(cr, dstWidth / (sx * srcWidth), dstHeight / (sy * srcHeight));
+ cairo_set_source_surface(cr, surface, -xsrc_dev, -ysrc_dev);
+ const wxRasterOperationMode rop_save = m_logicalFunction;
+ SetLogicalFunction(rop);
+ cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST);
+ cairo_surface_t* maskSurf = NULL;
+ if (useMask)
+ {
+ const wxBitmap& bitmap = source->GetImpl()->GetSelectedBitmap();
+ if (bitmap.IsOk())
+ {
+ wxMask* mask = bitmap.GetMask();
+ if (mask)
+ maskSurf = *mask;
+ }
+ }
+ if (maskSurf)
+ {
+ int xsrcMask_dev = xsrc_dev;
+ int ysrcMask_dev = ysrc_dev;
+ if (xsrcMask != -1)
+ xsrcMask_dev = source->LogicalToDeviceX(xsrcMask);
+ if (ysrcMask != -1)
+ ysrcMask_dev = source->LogicalToDeviceY(ysrcMask);
+ cairo_clip(cr);
+ cairo_mask_surface(cr, maskSurf, -xsrcMask_dev, -ysrcMask_dev);
+ }
+ else
+ {
+ cairo_fill(cr);
+ }
+ cairo_restore(cr);
+ m_logicalFunction = rop_save;
+ return true;
+}
+
+void* wxGTKCairoDCImpl::GetCairoContext() const
+{
+ cairo_t* cr = NULL;
+ if (m_graphicContext)
+ cr = static_cast<cairo_t*>(m_graphicContext->GetNativeContext());
+ if (cr)
+ cairo_reference(cr);
+ return cr;
+}
+//-----------------------------------------------------------------------------
+
+wxWindowDCImpl::wxWindowDCImpl(wxWindowDC* owner, wxWindow* window)
+ : base_type(owner, window)
+{
+ GtkWidget* widget = window->m_wxwindow;
+ if (widget == NULL)
+ widget = window->m_widget;
+ GdkWindow* gdkWindow = NULL;
+ if (widget)
+ {
+ gdkWindow = gtk_widget_get_window(widget);
+ m_ok = true;
+ }
+ if (gdkWindow)
+ {
+ cairo_t* cr = gdk_cairo_create(gdkWindow);
+ SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr));
+ GtkAllocation a;
+ gtk_widget_get_allocation(widget, &a);
+ int x, y;
+ if (gtk_widget_get_has_window(widget))
+ {
+ m_width = gdk_window_get_width(gdkWindow);
+ m_height = gdk_window_get_height(gdkWindow);
+ x = m_width - a.width;
+ y = m_height - a.height;
+ }
+ else
+ {
+ m_width = a.width;
+ m_height = a.height;
+ x = a.x;
+ y = a.y;
+ cairo_rectangle(cr, a.x, a.y, a.width, a.height);
+ cairo_clip(cr);
+ }
+ if (x || y)
+ SetDeviceLocalOrigin(x, y);
+ }
+ else
+ SetGraphicsContext(wxGraphicsContext::Create());
+}
+//-----------------------------------------------------------------------------
+
+wxClientDCImpl::wxClientDCImpl(wxClientDC* owner, wxWindow* window)
+ : base_type(owner, window)
+{
+ GtkWidget* widget = window->m_wxwindow;
+ if (widget == NULL)
+ widget = window->m_widget;
+ GdkWindow* gdkWindow = NULL;
+ if (widget)
+ {
+ gdkWindow = gtk_widget_get_window(widget);
+ m_ok = true;
+ }
+ if (gdkWindow)
+ {
+ cairo_t* cr = gdk_cairo_create(gdkWindow);
+ SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr));
+ if (gtk_widget_get_has_window(widget))
+ {
+ m_width = gdk_window_get_width(gdkWindow);
+ m_height = gdk_window_get_height(gdkWindow);
+ }
+ else
+ {
+ GtkAllocation a;
+ gtk_widget_get_allocation(widget, &a);
+ m_width = a.width;
+ m_height = a.height;
+ cairo_rectangle(cr, a.x, a.y, a.width, a.height);
+ cairo_clip(cr);
+ SetDeviceLocalOrigin(a.x, a.y);
+ }
+ }
+ else
+ SetGraphicsContext(wxGraphicsContext::Create());
+}
+//-----------------------------------------------------------------------------
+
+wxPaintDCImpl::wxPaintDCImpl(wxPaintDC* owner, wxWindow* window)
+ : base_type(owner, window)
+{
+ cairo_t* cr = window->GTKPaintContext();
+ wxCHECK_RET(cr, "using wxPaintDC without being in a native paint event");
+ GdkWindow* gdkWindow = gtk_widget_get_window(window->m_wxwindow);
+ m_width = gdk_window_get_width(gdkWindow);
+ m_height = gdk_window_get_height(gdkWindow);
+ cairo_reference(cr);
+ SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr));
+}
+//-----------------------------------------------------------------------------
+
+wxScreenDCImpl::wxScreenDCImpl(wxScreenDC* owner)
+ : base_type(owner, 0)
+{
+ GdkWindow* window = gdk_get_default_root_window();
+ m_width = gdk_window_get_width(window);
+ m_height = gdk_window_get_height(window);
+ cairo_t* cr = gdk_cairo_create(window);
+ SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr));
+}
+//-----------------------------------------------------------------------------
+
+wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner)
+ : base_type(owner)
+{
+ m_ok = false;
+}
+
+wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxBitmap& bitmap)
+ : base_type(owner, 0)
+ , m_bitmap(bitmap)
+{
+ Setup();
+}
+
+wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxDC*)
+ : base_type(owner)
+{
+ m_ok = false;
+}
+
+wxBitmap wxMemoryDCImpl::DoGetAsBitmap(const wxRect* subrect) const
+{
+ return subrect ? m_bitmap.GetSubBitmap(*subrect) : m_bitmap;
+}
+
+void wxMemoryDCImpl::DoSelect(const wxBitmap& bitmap)
+{
+ m_bitmap = bitmap;
+ Setup();
+}
+
+const wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() const
+{
+ return m_bitmap;
+}
+
+wxBitmap& wxMemoryDCImpl::GetSelectedBitmap()
+{
+ return m_bitmap;
+}
+
+void wxMemoryDCImpl::Setup()
+{
+ wxGraphicsContext* gc = NULL;
+ m_ok = m_bitmap.IsOk();
+ if (m_ok)
+ {
+ m_width = m_bitmap.GetWidth();
+ m_height = m_bitmap.GetHeight();
+ cairo_t* cr = m_bitmap.CairoCreate();
+ gc = wxGraphicsContext::CreateFromNative(cr);
+ }
+ SetGraphicsContext(gc);
+}
+//-----------------------------------------------------------------------------
+
+wxGTKCairoDC::wxGTKCairoDC(cairo_t* cr)
+ : base_type(new wxGTKCairoDCImpl(this, 0))
+{
+ cairo_reference(cr);
+ SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr));
+}
+
+#else
+
#include "wx/gtk/dc.h"
//-----------------------------------------------------------------------------
// TODO (should probably be pure virtual)
return wxSize(0, 0);
}
+#endif
projects / wxWidgets.git / blobdiff