#endif // WX_PRECOMP
#include <gtk/gtk.h>
+#include "wx/gtk/private/object.h"
//-----------------------------------------------------------------------------
// wxCursorRefData
virtual bool IsOk() const { return m_cursor != NULL; }
GdkCursor *m_cursor;
+
+private:
+ // There is no way to copy m_cursor so we can't implement a copy ctor
+ // properly.
+ wxDECLARE_NO_COPY_CLASS(wxCursorRefData);
};
wxCursorRefData::wxCursorRefData()
bitmap.GetPixbuf(),
hotSpotX, hotSpotY
);
- return;
- }
-
- unsigned long keyMaskColor = 0;
- GdkPixmap* mask;
- if (bHasMask)
- {
- keyMaskColor = wxImageHistogram::MakeKey(
- image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
- // get mask before image is modified
- wxBitmap bitmap(image, 1);
- mask = bitmap.GetMask()->GetBitmap();
- g_object_ref(mask);
}
- else
+ else // no colour cursor support
{
- const int size = ((w + 7) / 8) * h;
- char* bits = new char[size];
- memset(bits, 0xff, size);
- mask = gdk_bitmap_create_from_data(
- wxGetRootWindow()->window, bits, w, h);
- delete[] bits;
- }
+ unsigned long keyMaskColor = 0;
+ GdkPixmap *maskRaw;
+ if (bHasMask)
+ {
+ keyMaskColor = wxImageHistogram::MakeKey(
+ image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
+ // get mask before image is modified
+ wxBitmap bitmap(image, 1);
+ maskRaw = bitmap.GetMask()->GetBitmap();
+ g_object_ref(maskRaw);
+ }
+ else
+ {
+ const int size = ((w + 7) / 8) * h;
+ char* bits = new char[size];
+ memset(bits, 0xff, size);
+ maskRaw = gdk_bitmap_create_from_data(
+ wxGetRootWindow()->window, bits, w, h);
+ delete[] bits;
+ }
- // modify image so wxBitmap can be used to convert to pixmap
- image_copy.SetMask(false);
- int i, j;
- wxByte* data = image_copy.GetData();
- for (j = 0; j < h; j++)
- {
- for (i = 0; i < w; i++, data += 3)
+ // assign the raw pointer to wxGtkObject to ensure it is unref'd later
+ wxGtkObject<GdkPixmap> mask(maskRaw);
+
+ // modify image so wxBitmap can be used to convert to pixmap
+ image_copy.SetMask(false);
+ wxByte* data = image_copy.GetData();
+ for (int j = 0; j < h; j++)
{
- //if average value is > mid grey
- if (int(data[0]) + data[1] + data[2] >= 3 * 128)
+ for (int i = 0; i < w; i++, data += 3)
{
- // wxBitmap only converts (255,255,255) to white
- data[0] = 255;
- data[1] = 255;
- data[2] = 255;
+ // if average value of the pixel is > mid grey, convert it to
+ // background (0), otherwise to foreground (255, using wxBitmap
+ // convention)
+ data[0] =
+ data[1] =
+ data[2] = int(data[0]) + data[1] + data[2] >= 3 * 128 ? 0 : 255;
}
}
- }
- wxBitmap bitmap(image_copy, 1);
-
- // find the most frequent color(s)
- wxImageHistogram histogram;
- image.ComputeHistogram(histogram);
-
- long colMostFreq = 0;
- unsigned long nMost = 0;
- long colNextMostFreq = 0;
- unsigned long nNext = 0;
- for ( wxImageHistogram::iterator entry = histogram.begin();
- entry != histogram.end();
- ++entry )
- {
- unsigned long key = entry->first;
- if ( !bHasMask || (key != keyMaskColor) )
+ wxBitmap bitmap(image_copy, 1);
+
+ // find the most frequent color(s)
+ wxImageHistogram histogram;
+ image.ComputeHistogram(histogram);
+
+ long colMostFreq = 0;
+ unsigned long nMost = 0;
+ long colNextMostFreq = 0;
+ unsigned long nNext = 0;
+ for ( wxImageHistogram::iterator entry = histogram.begin();
+ entry != histogram.end();
+ ++entry )
{
- unsigned long value = entry->second.value;
- if (value > nMost)
+ unsigned long key = entry->first;
+ if ( !bHasMask || (key != keyMaskColor) )
{
- nNext = nMost;
- colNextMostFreq = colMostFreq;
- nMost = value;
- colMostFreq = key;
- }
- else if (value > nNext)
- {
- nNext = value;
- colNextMostFreq = key;
+ unsigned long value = entry->second.value;
+ if (value > nMost)
+ {
+ nNext = nMost;
+ colNextMostFreq = colMostFreq;
+ nMost = value;
+ colMostFreq = key;
+ }
+ else if (value > nNext)
+ {
+ nNext = value;
+ colNextMostFreq = key;
+ }
}
}
- }
- wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
- (unsigned char)(colMostFreq >> 8),
- (unsigned char)(colMostFreq) );
+ wxColour fg = wxColour ( (unsigned char)(colMostFreq >> 16),
+ (unsigned char)(colMostFreq >> 8),
+ (unsigned char)(colMostFreq) );
- wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
- (unsigned char)(colNextMostFreq >> 8),
- (unsigned char)(colNextMostFreq) );
+ wxColour bg = wxColour ( (unsigned char)(colNextMostFreq >> 16),
+ (unsigned char)(colNextMostFreq >> 8),
+ (unsigned char)(colNextMostFreq) );
- int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
- int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
+ int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
+ int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
- if (bg_intensity > fg_intensity)
- {
- //swap fg and bg
- wxColour tmp = fg;
- fg = bg;
- bg = tmp;
- }
-
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
- (
- bitmap.GetPixmap(),
- mask,
- fg.GetColor(), bg.GetColor(),
- hotSpotX, hotSpotY
- );
+ if (bg_intensity > fg_intensity)
+ {
+ //swap fg and bg
+ wxColour tmp = fg;
+ fg = bg;
+ bg = tmp;
+ }
- g_object_unref (mask);
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
+ (
+ bitmap.GetPixmap(),
+ mask,
+ fg.GetColor(), bg.GetColor(),
+ hotSpotX, hotSpotY
+ );
+ }
}
#endif // wxUSE_IMAGE
return new wxCursorRefData;
}
-wxGDIRefData *wxCursor::CloneGDIRefData(const wxGDIRefData *data) const
+wxGDIRefData *
+wxCursor::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const
{
- return new wxCursorRefData(*static_cast<const wxCursorRefData *>(data));
+ // TODO: We can't clone GDK cursors at the moment. To do this we'd need
+ // to remember the original data from which the cursor was created
+ // (i.e. standard cursor type or the bitmap) or use
+ // gdk_cursor_get_cursor_type() (which is in 2.22+ only) and
+ // gdk_cursor_get_image().
+ wxFAIL_MSG( wxS("Cloning cursors is not implemented in wxGTK.") );
+
+ return new wxCursorRefData;
}
//-----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff