/////////////////////////////////////////////////////////////////////////////
-// Name: cursor.cpp
+// Name: src/gtk/cursor.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Id: $Id$
+// Copyright: (c) 1998 Robert Roebling
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
-#ifdef __GNUG__
-#pragma implementation "cursor.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#include "wx/cursor.h"
+#ifndef WX_PRECOMP
+ #include "wx/app.h"
+ #include "wx/utils.h"
+ #include "wx/image.h"
+ #include "wx/colour.h"
+#endif // WX_PRECOMP
+
+#include <gtk/gtk.h>
+
//-----------------------------------------------------------------------------
// wxCursor
//-----------------------------------------------------------------------------
class wxCursorRefData: public wxObjectRefData
{
public:
-
- wxCursorRefData(void);
- ~wxCursorRefData(void);
-
+
+ wxCursorRefData();
+ virtual ~wxCursorRefData();
+
GdkCursor *m_cursor;
};
-wxCursorRefData::wxCursorRefData(void)
+wxCursorRefData::wxCursorRefData()
{
- m_cursor = NULL;
-};
+ m_cursor = (GdkCursor *) NULL;
+}
-wxCursorRefData::~wxCursorRefData(void)
+wxCursorRefData::~wxCursorRefData()
{
- if (m_cursor) gdk_cursor_destroy( m_cursor );
-};
+ if (m_cursor) gdk_cursor_unref( m_cursor );
+}
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
-wxCursor::wxCursor(void)
+wxCursor::wxCursor()
{
-};
+
+}
wxCursor::wxCursor( int cursorId )
{
- m_refData = new wxCursorRefData();
-
- GdkCursorType gdk_cur = GDK_LEFT_PTR;
- switch (cursorId)
- {
- case wxCURSOR_HAND: gdk_cur = GDK_HAND1; 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_WAIT: gdk_cur = GDK_WATCH; break;
- case wxCURSOR_WATCH: gdk_cur = GDK_WATCH; 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;
- case wxCURSOR_NO_ENTRY: gdk_cur = GDK_PIRATE; break;
- };
-
- M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
-
+ m_refData = new wxCursorRefData();
+
+ GdkCursorType gdk_cur = GDK_LEFT_PTR;
+ switch (cursorId)
+ {
+ case wxCURSOR_BLANK:
+ {
+ static const gchar bits[] = { 0 };
+ static /* const -- not in GTK1 */ 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,
+ pixmap,
+ &color,
+ &color,
+ 0, 0);
+ }
+ return;
+
+ 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_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_SPRAYCAN: gdk_cur = GDK_SPRAYCAN; break;
+ case wxCURSOR_IBEAM: gdk_cur = GDK_XTERM; break;
+ case wxCURSOR_PENCIL: gdk_cur = GDK_PENCIL; break;
+ case wxCURSOR_NO_ENTRY: gdk_cur = GDK_PIRATE; break;
+ case wxCURSOR_SIZENWSE:
+ case wxCURSOR_SIZENESW: gdk_cur = GDK_FLEUR; break;
+ case wxCURSOR_QUESTION_ARROW: gdk_cur = GDK_QUESTION_ARROW; break;
+ case wxCURSOR_PAINT_BRUSH: gdk_cur = GDK_SPRAYCAN; break;
+ case wxCURSOR_MAGNIFIER: gdk_cur = GDK_PLUS; break;
+ case wxCURSOR_CHAR: gdk_cur = GDK_XTERM; break;
+ case wxCURSOR_LEFT_BUTTON: gdk_cur = GDK_LEFTBUTTON; break;
+ case wxCURSOR_MIDDLE_BUTTON: gdk_cur = GDK_MIDDLEBUTTON; break;
+ case wxCURSOR_RIGHT_BUTTON: gdk_cur = GDK_RIGHTBUTTON; break;
+ case wxCURSOR_BULLSEYE: gdk_cur = GDK_TARGET; break;
+
+ case wxCURSOR_POINT_LEFT: gdk_cur = GDK_SB_LEFT_ARROW; break;
+ case wxCURSOR_POINT_RIGHT: gdk_cur = GDK_SB_RIGHT_ARROW; break;
/*
- do that yourself
-
- wxCURSOR_BULLSEYE,
- wxCURSOR_CHAR,
- wxCURSOR_LEFT_BUTTON,
- wxCURSOR_MAGNIFIER,
- wxCURSOR_MIDDLE_BUTTON,
- wxCURSOR_NO_ENTRY,
- wxCURSOR_PAINT_BRUSH,
- wxCURSOR_POINT_LEFT,
- wxCURSOR_POINT_RIGHT,
- wxCURSOR_QUESTION_ARROW,
- wxCURSOR_RIGHT_BUTTON,
- wxCURSOR_SIZENESW,
- wxCURSOR_SIZENS,
- wxCURSOR_SIZENWSE,
- wxCURSOR_SIZEWE,
- wxCURSOR_BLANK
-,
- wxCURSOR_CROSS_REVERSE,
- wxCURSOR_DOUBLE_ARROW,
- wxCURSOR_BASED_ARROW_UP,
- wxCURSOR_BASED_ARROW_DOWN
+ case wxCURSOR_DOUBLE_ARROW: gdk_cur = GDK_DOUBLE_ARROW; break;
+ case wxCURSOR_CROSS_REVERSE: gdk_cur = GDK_CROSS_REVERSE; break;
+ case wxCURSOR_BASED_ARROW_UP: gdk_cur = GDK_BASED_ARROW_UP; break;
+ case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
*/
-
-};
-wxCursor::wxCursor( const wxCursor &cursor )
-{
- Ref( cursor );
-};
+ default:
+ wxFAIL_MSG(wxT("unsupported cursor type"));
+ // will use the standard one
+ break;
+ }
-wxCursor::wxCursor( const wxCursor *cursor )
-{
- UnRef();
- if (cursor) Ref( *cursor );
-};
+ M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
+}
-wxCursor::~wxCursor(void)
+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);
+}
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
+#if wxUSE_IMAGE
+
+static void GetHotSpot(const wxImage& image, int& x, int& y)
{
- if (*this == cursor) return (*this);
- Ref( cursor );
- return *this;
-};
+ 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;
+}
-bool wxCursor::operator == ( const wxCursor& cursor )
+wxCursor::wxCursor( const wxImage & image )
{
- return m_refData == cursor.m_refData;
-};
+ unsigned char * rgbBits = image.GetData();
+ int w = image.GetWidth() ;
+ int h = image.GetHeight();
+ bool bHasMask = image.HasMask();
+ int imagebitcount = (w*h)/8;
+
+ if ( gdk_display_supports_cursor_color(gdk_display_get_default()) )
+ {
+ 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;
+ }
+
+ 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;
+ }
+ }
-bool wxCursor::operator != ( const wxCursor& cursor )
+ unsigned long keyMaskColor;
+ if (bHasMask)
+ {
+ unsigned char
+ 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) )
+ {
+ if (value > nMost)
+ {
+ 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 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;
+}
+
+#endif // wxUSE_IMAGE
+
+wxCursor::~wxCursor()
{
- return m_refData != cursor.m_refData;
-};
+}
-bool wxCursor::Ok(void) const
+bool wxCursor::IsOk() const
{
- return TRUE;
-};
+ return (m_refData != NULL);
+}
-GdkCursor *wxCursor::GetCursor(void) const
+GdkCursor *wxCursor::GetCursor() const
{
- return M_CURSORDATA->m_cursor;
-};
+ return M_CURSORDATA->m_cursor;
+}
//-----------------------------------------------------------------------------
// busy cursor routines
//-----------------------------------------------------------------------------
-bool g_isBusy = FALSE;
+/* Current cursor, in order to hang on to
+ * cursor handle when setting the cursor globally */
+wxCursor g_globalCursor;
+
+static wxCursor gs_savedCursor;
+static int gs_busyCount = 0;
-void wxEndBusyCursor(void)
+const wxCursor &wxBusyCursor::GetStoredCursor()
{
- g_isBusy = FALSE;
-};
+ return gs_savedCursor;
+}
-void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
+const wxCursor wxBusyCursor::GetBusyCursor()
{
- g_isBusy = TRUE;
-};
+ return wxCursor(wxCURSOR_WATCH);
+}
-bool wxIsBusy(void)
+void wxEndBusyCursor()
{
- return g_isBusy;
-};
+ if (--gs_busyCount > 0)
+ return;
-void wxSetCursor( const wxCursor& cursor )
+ wxSetCursor( gs_savedCursor );
+ gs_savedCursor = wxNullCursor;
+
+ if (wxTheApp)
+ wxTheApp->ProcessIdle();
+}
+
+void wxBeginBusyCursor( const wxCursor *WXUNUSED(cursor) )
{
- extern wxCursor *g_globalCursor;
- if (g_globalCursor) (*g_globalCursor) = cursor;
+ if (gs_busyCount++ > 0)
+ return;
- if (cursor.Ok()) {};
-};
+ wxASSERT_MSG( !gs_savedCursor.Ok(),
+ wxT("forgot to call wxEndBusyCursor, will leak memory") );
+
+ gs_savedCursor = g_globalCursor;
+
+ wxSetCursor( wxCursor(wxCURSOR_WATCH) );
+
+ if (wxTheApp)
+ wxTheApp->ProcessIdle();
+ gdk_flush();
+}
+bool wxIsBusy()
+{
+ return gs_busyCount > 0;
+}
+
+void wxSetCursor( const wxCursor& cursor )
+{
+ g_globalCursor = cursor;
+ wxTheApp->WakeUpIdle();
+}
projects / wxWidgets.git / blobdiff