/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/cursor.cpp
-// Purpose:
+// Purpose: wxCursor implementation
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
#include "wx/cursor.h"
#ifndef WX_PRECOMP
+ #include "wx/window.h"
#include "wx/app.h"
- #include "wx/utils.h"
#include "wx/image.h"
- #include "wx/colour.h"
+ #include "wx/bitmap.h"
+ #include "wx/log.h"
#endif // WX_PRECOMP
#include <gtk/gtk.h>
+#include "wx/gtk/private/object.h"
+#include "wx/gtk/private/gtk2-compat.h"
//-----------------------------------------------------------------------------
-// wxCursor
+// wxCursorRefData
//-----------------------------------------------------------------------------
-class wxCursorRefData: public wxObjectRefData
+class wxCursorRefData: public wxGDIRefData
{
- public:
-
+public:
wxCursorRefData();
virtual ~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()
{
- m_cursor = (GdkCursor *) NULL;
+ m_cursor = NULL;
}
wxCursorRefData::~wxCursorRefData()
if (m_cursor) gdk_cursor_unref( m_cursor );
}
+
//-----------------------------------------------------------------------------
+// wxCursor
+//-----------------------------------------------------------------------------
+
+#define M_CURSORDATA static_cast<wxCursorRefData*>(m_refData)
-#define M_CURSORDATA ((wxCursorRefData *)m_refData)
+IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxGDIObject)
+
+// used in the following two ctors
+extern GtkWidget *wxGetRootWindow();
-IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
wxCursor::wxCursor()
{
+}
+
+#if wxUSE_IMAGE
+wxCursor::wxCursor(const wxString& cursor_file,
+ wxBitmapType type,
+ int hotSpotX, int hotSpotY)
+{
+ wxImage img;
+ if (!img.LoadFile(cursor_file, type))
+ return;
+ // eventually set the hotspot:
+ if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
+ img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_X, hotSpotX);
+ if (!img.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
+ img.SetOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y, hotSpotY);
+
+ InitFromImage(img);
+}
+
+wxCursor::wxCursor(const wxImage& img)
+{
+ InitFromImage(img);
}
+#endif
-wxCursor::wxCursor( int cursorId )
+wxCursor::wxCursor(const char bits[], int width, int height,
+ int hotSpotX, int hotSpotY,
+ const char maskBits[], const wxColour *fg, const wxColour *bg)
+{
+ m_refData = new wxCursorRefData;
+ if (hotSpotX < 0 || hotSpotX >= width)
+ hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY >= height)
+ hotSpotY = 0;
+#ifdef __WXGTK3__
+ wxBitmap bitmap(bits, width, height);
+ if (maskBits)
+ bitmap.SetMask(new wxMask(wxBitmap(maskBits, width, height)));
+ GdkPixbuf* pixbuf = bitmap.GetPixbuf();
+ if (fg || bg)
+ {
+ const int stride = gdk_pixbuf_get_rowstride(pixbuf);
+ const int n_channels = gdk_pixbuf_get_n_channels(pixbuf);
+ guchar* data = gdk_pixbuf_get_pixels(pixbuf);
+ for (int j = 0; j < height; j++, data += stride)
+ {
+ guchar* p = data;
+ for (int i = 0; i < width; i++, p += n_channels)
+ {
+ if (p[0])
+ {
+ if (fg)
+ {
+ p[0] = fg->Red();
+ p[1] = fg->Green();
+ p[2] = fg->Blue();
+ }
+ }
+ else
+ {
+ if (bg)
+ {
+ p[0] = bg->Red();
+ p[1] = bg->Green();
+ p[2] = bg->Blue();
+ }
+ }
+ }
+ }
+ }
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY);
+#else
+ if (!maskBits)
+ maskBits = bits;
+ if (!fg)
+ fg = wxBLACK;
+ if (!bg)
+ bg = wxWHITE;
+
+ GdkBitmap* data = gdk_bitmap_create_from_data(
+ gtk_widget_get_window(wxGetRootWindow()), const_cast<char*>(bits), width, height);
+ GdkBitmap* mask = gdk_bitmap_create_from_data(
+ gtk_widget_get_window(wxGetRootWindow()), const_cast<char*>(maskBits), width, height);
+
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
+ data, mask, fg->GetColor(), bg->GetColor(),
+ hotSpotX, hotSpotY );
+
+ g_object_unref (data);
+ g_object_unref (mask);
+#endif
+}
+
+wxCursor::~wxCursor()
+{
+}
+
+void wxCursor::InitFromStock( wxStockCursor cursorId )
{
m_refData = new wxCursorRefData();
GdkCursorType gdk_cur = GDK_LEFT_PTR;
switch (cursorId)
{
+#ifdef __WXGTK3__
+ case wxCURSOR_BLANK: gdk_cur = GDK_BLANK_CURSOR; break;
+#else
case wxCURSOR_BLANK:
{
- static const gchar bits[] = { 0 };
- static /* const -- not in GTK1 */ GdkColor color = { 0, 0, 0, 0 };
+ const char bits[] = { 0 };
+ const GdkColor color = { 0, 0, 0, 0 };
GdkPixmap *pixmap = gdk_bitmap_create_from_data(NULL, bits, 1, 1);
M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(pixmap,
&color,
&color,
0, 0);
+ g_object_unref(pixmap);
}
return;
-
+#endif
case wxCURSOR_ARROW: // fall through to default
case wxCURSOR_DEFAULT: gdk_cur = GDK_LEFT_PTR; break;
case wxCURSOR_RIGHT_ARROW: gdk_cur = GDK_RIGHT_PTR; break;
- case wxCURSOR_HAND: gdk_cur = GDK_HAND1; break;
+ case wxCURSOR_HAND: gdk_cur = GDK_HAND2; break;
case wxCURSOR_CROSS: gdk_cur = GDK_CROSSHAIR; break;
case wxCURSOR_SIZEWE: gdk_cur = GDK_SB_H_DOUBLE_ARROW; break;
case wxCURSOR_SIZENS: gdk_cur = GDK_SB_V_DOUBLE_ARROW; break;
case wxCURSOR_ARROWWAIT:
case wxCURSOR_WAIT:
case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; break;
- case wxCURSOR_SIZING: gdk_cur = GDK_FLEUR; break;
+ case wxCURSOR_SIZING: gdk_cur = GDK_SIZING; break;
case wxCURSOR_SPRAYCAN: gdk_cur = GDK_SPRAYCAN; break;
case wxCURSOR_IBEAM: gdk_cur = GDK_XTERM; break;
case wxCURSOR_PENCIL: gdk_cur = GDK_PENCIL; break;
M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
}
-extern GtkWidget *wxGetRootWindow();
-
-wxCursor::wxCursor(const char bits[], int width, int height,
- int hotSpotX, int hotSpotY,
- const char maskBits[], const wxColour *fg, const wxColour *bg)
-{
- if (!maskBits)
- maskBits = bits;
- if (!fg)
- fg = wxBLACK;
- if (!bg)
- bg = wxWHITE;
- if (hotSpotX < 0 || hotSpotX >= width)
- hotSpotX = 0;
- if (hotSpotY < 0 || hotSpotY >= height)
- hotSpotY = 0;
-
- GdkBitmap *data = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
- GdkBitmap *mask = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) maskBits, width, height);
-
- m_refData = new wxCursorRefData;
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap(
- data, mask, fg->GetColor(), bg->GetColor(),
- hotSpotX, hotSpotY );
-
- g_object_unref (data);
- g_object_unref (mask);
-}
-
#if wxUSE_IMAGE
-static void GetHotSpot(const wxImage& image, int& x, int& y)
+void wxCursor::InitFromImage( const wxImage & image )
{
- if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
- x = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
- else
- x = 0;
-
- if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
- y = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
- else
- y = 0;
-
- if (x < 0 || x >= image.GetWidth())
- x = 0;
- if (y < 0 || y >= image.GetHeight())
- y = 0;
-}
-
-wxCursor::wxCursor( const wxImage & image )
-{
- unsigned char * rgbBits = image.GetData();
- int w = image.GetWidth() ;
- int h = image.GetHeight();
- bool bHasMask = image.HasMask();
- int imagebitcount = (w*h)/8;
-
-#ifdef __WXGTK24__
- if (!gtk_check_version(2,4,0))
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ const guchar* alpha = image.GetAlpha();
+ const bool hasMask = image.HasMask();
+ int hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
+ int hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
+ if (hotSpotX < 0 || hotSpotX > w) hotSpotX = 0;
+ if (hotSpotY < 0 || hotSpotY > h) hotSpotY = 0;
+ GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(image.GetData(), GDK_COLORSPACE_RGB, false, 8, w, h, w * 3, NULL, NULL);
+ if (alpha || hasMask)
{
- if ( gdk_display_supports_cursor_color(gdk_display_get_default()) )
+ guchar r = 0, g = 0, b = 0;
+ if (hasMask)
{
- unsigned char rMask = 0,
- gMask = 0,
- bMask = 0;
- if (bHasMask)
- {
- rMask = image.GetMaskRed();
- gMask = image.GetMaskGreen();
- bMask = image.GetMaskBlue();
- }
-
- GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, w, h);
- unsigned char *alpha = image.HasAlpha() ? image.GetAlpha() : NULL;
- unsigned char *out = gdk_pixbuf_get_pixels(pixbuf);
- int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * w;
- for ( int y = 0; y < h; y++, out += rowpad )
- {
- for ( int x = 0; x < w; x++, out += 4, rgbBits += 3 )
- {
- out[0] = rgbBits[0];
- out[1] = rgbBits[1];
- out[2] = rgbBits[2];
- if (bHasMask &&
- out[0] == rMask && out[1] == gMask && out[2] == bMask)
- out[3] = 0;
- else
- out[3] = alpha ? *alpha : 255;
- if ( alpha )
- ++alpha;
- }
- }
-
- int hotSpotX, hotSpotY;
- GetHotSpot(image, hotSpotX, hotSpotY);
-
- m_refData = new wxCursorRefData;
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf
- (
- gdk_display_get_default(),
- pixbuf,
- hotSpotX, hotSpotY
- );
- g_object_unref (pixbuf);
- return;
- }
- }
-#endif // GTK+ 2.4+
-
- unsigned char * bits = new unsigned char [imagebitcount];
- unsigned char * maskBits = new unsigned char [imagebitcount];
-
- int i, j, i8; unsigned char c, cMask;
- for (i=0; i<imagebitcount; i++)
- {
- bits[i] = 0;
- i8 = i * 8;
-
- cMask = 1;
- for (j=0; j<8; j++)
- {
- // possible overflow if we do the summation first ?
- c = rgbBits[(i8+j)*3]/3 + rgbBits[(i8+j)*3+1]/3 + rgbBits[(i8+j)*3+2]/3;
- //if average value is > mid grey
- if (c>127)
- bits[i] = bits[i] | cMask;
- cMask = cMask * 2;
- }
- }
-
- unsigned long keyMaskColor;
- if (bHasMask)
- {
- unsigned char
- r = image.GetMaskRed(),
- g = image.GetMaskGreen(),
+ r = image.GetMaskRed();
+ g = image.GetMaskGreen();
b = image.GetMaskBlue();
-
- for (i=0; i<imagebitcount; i++)
- {
- maskBits[i] = 0x0;
- i8 = i * 8;
-
- cMask = 1;
- for (j=0; j<8; j++)
- {
- if (rgbBits[(i8+j)*3] != r || rgbBits[(i8+j)*3+1] != g || rgbBits[(i8+j)*3+2] != b)
- maskBits[i] = maskBits[i] | cMask;
- cMask = cMask * 2;
- }
}
-
- keyMaskColor = (r << 16) | (g << 8) | b;
- }
- else // no mask
- {
- for (i=0; i<imagebitcount; i++)
- maskBits[i] = 0xFF;
-
- // init it to avoid compiler warnings
- keyMaskColor = 0;
- }
-
- // find the most frequent color(s)
- wxImageHistogram histogram;
- image.ComputeHistogram(histogram);
-
- // colors as rrggbb
- unsigned long key;
- unsigned long value;
-
- long colMostFreq = 0;
- unsigned long nMost = 0;
- long colNextMostFreq = 0;
- unsigned long nNext = 0;
- for ( wxImageHistogram::iterator entry = histogram.begin();
- entry != histogram.end();
- ++entry )
- {
- value = entry->second.value;
- key = entry->first;
- if ( !bHasMask || (key != keyMaskColor) )
+ GdkPixbuf* pixbuf0 = pixbuf;
+ pixbuf = gdk_pixbuf_add_alpha(pixbuf, hasMask, r, g, b);
+ g_object_unref(pixbuf0);
+ if (alpha)
{
- if (value > nMost)
- {
- nMost = value;
- colMostFreq = key;
- }
- else if (value > nNext)
- {
- nNext = value;
- colNextMostFreq = key;
- }
+ guchar* d = gdk_pixbuf_get_pixels(pixbuf);
+ const int stride = gdk_pixbuf_get_rowstride(pixbuf);
+ for (int j = 0; j < h; j++, d += stride)
+ for (int i = 0; i < w; i++, alpha++)
+ if (d[4 * i + 3])
+ d[4 * i + 3] = *alpha;
}
}
-
- 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) );
-
- 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;
- }
-
- int hotSpotX, hotSpotY;
- GetHotSpot(image, hotSpotX, hotSpotY);
-
- GdkBitmap *data = gdk_bitmap_create_from_data(wxGetRootWindow()->window,
- (gchar *) bits, w, h);
- GdkBitmap *mask = gdk_bitmap_create_from_data(wxGetRootWindow()->window,
- (gchar *) maskBits, w, h);
-
m_refData = new wxCursorRefData;
- M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixmap
- (
- data,
- mask,
- fg.GetColor(), bg.GetColor(),
- hotSpotX, hotSpotY
- );
-
- g_object_unref (data);
- g_object_unref (mask);
- delete [] bits;
- delete [] maskBits;
+ M_CURSORDATA->m_cursor = gdk_cursor_new_from_pixbuf(gtk_widget_get_display(wxGetRootWindow()), pixbuf, hotSpotX, hotSpotY);
+ g_object_unref(pixbuf);
}
#endif // wxUSE_IMAGE
-wxCursor::~wxCursor()
+GdkCursor *wxCursor::GetCursor() const
{
+ return M_CURSORDATA->m_cursor;
}
-bool wxCursor::IsOk() const
+wxGDIRefData *wxCursor::CreateGDIRefData() const
{
- return (m_refData != NULL);
+ return new wxCursorRefData;
}
-GdkCursor *wxCursor::GetCursor() const
+wxGDIRefData *
+wxCursor::CloneGDIRefData(const wxGDIRefData * WXUNUSED(data)) const
{
- return M_CURSORDATA->m_cursor;
+ // 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;
}
//-----------------------------------------------------------------------------
return wxCursor(wxCURSOR_WATCH);
}
+static void UpdateCursors(GdkDisplay** display)
+{
+ wxWindowList::const_iterator i = wxTopLevelWindows.begin();
+ for (size_t n = wxTopLevelWindows.size(); n--; ++i)
+ {
+ wxWindow* win = *i;
+ win->GTKUpdateCursor();
+ if (display && *display == NULL && win->m_widget)
+ *display = gtk_widget_get_display(win->m_widget);
+ }
+}
+
void wxEndBusyCursor()
{
if (--gs_busyCount > 0)
return;
- wxSetCursor( gs_savedCursor );
+ g_globalCursor = gs_savedCursor;
gs_savedCursor = wxNullCursor;
-
- if (wxTheApp)
- wxTheApp->ProcessIdle();
+ UpdateCursors(NULL);
}
-void wxBeginBusyCursor( const wxCursor *WXUNUSED(cursor) )
+void wxBeginBusyCursor(const wxCursor* cursor)
{
if (gs_busyCount++ > 0)
return;
- wxASSERT_MSG( !gs_savedCursor.Ok(),
+ wxASSERT_MSG( !gs_savedCursor.IsOk(),
wxT("forgot to call wxEndBusyCursor, will leak memory") );
gs_savedCursor = g_globalCursor;
-
- wxSetCursor( wxCursor(wxCURSOR_WATCH) );
-
- if (wxTheApp)
- wxTheApp->ProcessIdle();
-
- gdk_flush();
+ g_globalCursor = *cursor;
+ GdkDisplay* display = NULL;
+ UpdateCursors(&display);
+ if (display)
+ gdk_display_flush(display);
}
bool wxIsBusy()
void wxSetCursor( const wxCursor& cursor )
{
g_globalCursor = cursor;
- wxTheApp->WakeUpIdle();
+ UpdateCursors(NULL);
}
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