Various changes to make pop up menus work

[wxWidgets.git] / src / gtk1 / cursor.cpp

diff --git a/src/gtk1/cursor.cpp b/src/gtk1/cursor.cpp
index 61a8c8f0b62d38ffc573214a31a3c4a2d2e9a943..adf882b13352c550475270b61ad803b36a2b81a7 100644 (file)
--- a/src/gtk1/cursor.cpp
+++ b/src/gtk1/cursor.cpp
@@ -14,6 +14,7 @@
 
 #include "wx/cursor.h"
 #include "wx/utils.h"
+#include "wx/app.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
@@ -57,6 +58,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
 
 wxCursor::wxCursor()
 {
+
 }
 
 wxCursor::wxCursor( int cursorId )
@@ -71,6 +73,7 @@ wxCursor::wxCursor( int cursorId )
         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_SIZING; break;
@@ -108,7 +111,7 @@ wxCursor::wxCursor( int cursorId )
     M_CURSORDATA->m_cursor = gdk_cursor_new( gdk_cur );
 }
 
-extern GtkWidget *wxRootWindow;
+extern GtkWidget *wxGetRootWindow();
 
 wxCursor::wxCursor(const char bits[], int width, int  height,
                    int hotSpotX, int hotSpotY,
@@ -125,8 +128,8 @@ wxCursor::wxCursor(const char bits[], int width, int  height,
     if (hotSpotY < 0 || hotSpotY >= height)
         hotSpotY = 0;
 
-    GdkBitmap *data = gdk_bitmap_create_from_data( wxRootWindow->window, (gchar *) bits, width, height );
-    GdkBitmap *mask = gdk_bitmap_create_from_data( wxRootWindow->window, (gchar *) maskBits, width, height);
+    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(
@@ -143,6 +146,139 @@ wxCursor::wxCursor( const wxCursor &cursor )
     Ref( cursor );
 }
 
+#if wxUSE_IMAGE
+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;
+
+    unsigned char r, g, b ;
+    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 ;
+           }
+        }
+    if (bHasMask)
+        {
+        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 ;
+           }
+        }
+        }
+      else
+        {
+        for (i=0; i<imagebitcount; i++)
+            maskBits[i]= 0xFF ;
+        }
+    //find the most frequent color(s)
+    //it seems a waste of effort to copy the image
+    //but otherwise we need to remove the const modifier ??
+    wxImage tmpImage = image.Copy();
+    wxImageHistogram histogram;
+
+    //colors as rrggbb
+    unsigned long key;
+    unsigned long value;
+    unsigned long keyMaskColor = 0;
+    if (bHasMask) 
+        keyMaskColor = (r << 16) | (g << 8) | b;
+
+    tmpImage.ComputeHistogram(histogram);
+
+    long MostFreqCol = 0;
+    unsigned long nMost = 0;
+    long NextFreqCol = 0;
+    unsigned long nNext = 0;
+    wxImageHistogram::iterator entry = histogram.begin();
+
+    while ( entry != histogram.end() )
+    {
+        value = entry->second.value;
+        key = entry->first;
+        if ( !bHasMask || (key != keyMaskColor) )
+        {
+            if (value > nMost)
+            {
+                nMost = value;
+                MostFreqCol = key;
+            }
+            else if (value > nNext)
+            {
+                nNext = value;
+                NextFreqCol = key;
+            }
+        }
+    }
+
+    wxColour fg = wxColour ( (unsigned char)(MostFreqCol >> 16),
+                             (unsigned char)(MostFreqCol >> 8),
+                             (unsigned char)(MostFreqCol) ) ;
+
+    wxColour bg = wxColour ( (unsigned char)(NextFreqCol >> 16),
+                             (unsigned char)(NextFreqCol >> 8),
+                             (unsigned char)(NextFreqCol) ) ;
+
+    int hotSpotX=0; 
+    int hotSpotY=0;
+
+    if (image.HasOption(wxCUR_HOTSPOT_X))
+        hotSpotX = image.GetOptionInt(wxCUR_HOTSPOT_X);
+    if (image.HasOption(wxCUR_HOTSPOT_Y))
+        hotSpotY = image.GetOptionInt(wxCUR_HOTSPOT_Y);
+   
+    if (hotSpotX < 0 || hotSpotX >= w)
+        hotSpotX = 0;
+    if (hotSpotY < 0 || hotSpotY >= h)
+        hotSpotY = 0;
+
+    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 );
+
+    gdk_bitmap_unref( data );
+    gdk_bitmap_unref( mask );
+    delete [] bits ;
+    delete [] maskBits;
+}
+#endif
+
 wxCursor::~wxCursor()
 {
 }
@@ -204,7 +340,8 @@ void wxEndBusyCursor()
     wxSetCursor( gs_savedCursor );
     gs_savedCursor = wxNullCursor;
 
-    wxYield();
+    if (wxTheApp)
+        wxTheApp->SendIdleEvents();
 }
 
 void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
@@ -219,7 +356,10 @@ void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
 
     wxSetCursor( wxCursor(wxCURSOR_WATCH) );
 
-    wxYield();
+    if (wxTheApp)
+        wxTheApp->SendIdleEvents();
+        
+    gdk_flush();
 }
 
 bool wxIsBusy()