X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c2fa61e833ffe9789ef3d3327157e17101a4a2ce..a82b05935e73f75c40a83a36d766e9ffd07984a6:/src/gtk/cursor.cpp?ds=sidebyside

diff --git a/src/gtk/cursor.cpp b/src/gtk/cursor.cpp
index c419a36837..b8d86c2037 100644
--- a/src/gtk/cursor.cpp
+++ b/src/gtk/cursor.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        cursor.cpp
+// Name:        src/gtk/cursor.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,24 +7,19 @@
 // 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"
-#include "wx/utils.h"
-#include "wx/app.h"
-
-#include <gdk/gdk.h>
-#include <gtk/gtk.h>
 
-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/utils.h"
+    #include "wx/image.h"
+    #include "wx/colour.h"
+#endif // WX_PRECOMP
 
-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#include <gtk/gtk.h>
 
 //-----------------------------------------------------------------------------
 // wxCursor
@@ -35,7 +30,7 @@ class wxCursorRefData: public wxObjectRefData
   public:
 
     wxCursorRefData();
-    ~wxCursorRefData();
+    virtual ~wxCursorRefData();
 
     GdkCursor *m_cursor;
 };
@@ -47,7 +42,7 @@ wxCursorRefData::wxCursorRefData()
 
 wxCursorRefData::~wxCursorRefData()
 {
-    if (m_cursor) gdk_cursor_destroy( m_cursor );
+    if (m_cursor) gdk_cursor_unref( m_cursor );
 }
 
 //-----------------------------------------------------------------------------
@@ -58,6 +53,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
 
 wxCursor::wxCursor()
 {
+
 }
 
 wxCursor::wxCursor( int cursorId )
@@ -67,7 +63,23 @@ wxCursor::wxCursor( int cursorId )
     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;
@@ -75,7 +87,7 @@ wxCursor::wxCursor( int cursorId )
         case wxCURSOR_ARROWWAIT:
         case wxCURSOR_WAIT:
         case wxCURSOR_WATCH:            gdk_cur = GDK_WATCH; break;
-        case wxCURSOR_SIZING:           gdk_cur = GDK_SIZING; 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;
@@ -99,11 +111,10 @@ wxCursor::wxCursor( int cursorId )
         case wxCURSOR_BASED_ARROW_UP:   gdk_cur = GDK_BASED_ARROW_UP; break;
         case wxCURSOR_BASED_ARROW_DOWN: gdk_cur = GDK_BASED_ARROW_DOWN; break;
 */
+
         default:
             wxFAIL_MSG(wxT("unsupported cursor type"));
             // will use the standard one
-
-        case wxCURSOR_ARROW:
             break;
     }
 
@@ -114,7 +125,7 @@ extern GtkWidget *wxGetRootWindow();
 
 wxCursor::wxCursor(const char bits[], int width, int  height,
                    int hotSpotX, int hotSpotY,
-                   const char maskBits[], wxColour *fg, wxColour *bg)
+                   const char maskBits[], const wxColour *fg, const wxColour *bg)
 {
     if (!maskBits)
         maskBits = bits;
@@ -135,41 +146,221 @@ wxCursor::wxCursor(const char bits[], int width, int  height,
                  data, mask, fg->GetColor(), bg->GetColor(),
                  hotSpotX, hotSpotY );
 
-    gdk_bitmap_unref( data );
-    gdk_bitmap_unref( mask );
+    g_object_unref (data);
+    g_object_unref (mask);
 }
 
+#if wxUSE_IMAGE
 
-wxCursor::wxCursor( const wxCursor &cursor )
+static void GetHotSpot(const wxImage& image, int& x, int& y)
 {
-    Ref( cursor );
+    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()
+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;
 
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
-{
-    if (*this == cursor)
-        return (*this);
+    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;
+    }
 
-    Ref( cursor );
+    unsigned char * bits = new unsigned char [imagebitcount];
+    unsigned char * maskBits = new unsigned char [imagebitcount];
 
-    return *this;
-}
+    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 ) const
-{
-    return m_refData == cursor.m_refData;
+    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;
 }
 
-bool wxCursor::operator != ( const wxCursor& cursor ) const
+#endif // wxUSE_IMAGE
+
+wxCursor::~wxCursor()
 {
-    return m_refData != cursor.m_refData;
 }
 
-bool wxCursor::Ok() const
+bool wxCursor::IsOk() const
 {
     return (m_refData != NULL);
 }
@@ -183,7 +374,9 @@ GdkCursor *wxCursor::GetCursor() const
 // busy cursor routines
 //-----------------------------------------------------------------------------
 
-extern wxCursor g_globalCursor;
+/* 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;
@@ -207,10 +400,10 @@ void wxEndBusyCursor()
     gs_savedCursor = wxNullCursor;
 
     if (wxTheApp)
-        wxTheApp->SendIdleEvents();
+        wxTheApp->ProcessIdle();
 }
 
-void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
+void wxBeginBusyCursor( const wxCursor *WXUNUSED(cursor) )
 {
     if (gs_busyCount++ > 0)
         return;
@@ -223,7 +416,9 @@ void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
     wxSetCursor( wxCursor(wxCURSOR_WATCH) );
 
     if (wxTheApp)
-        wxTheApp->SendIdleEvents();
+        wxTheApp->ProcessIdle();
+
+    gdk_flush();
 }
 
 bool wxIsBusy()
@@ -233,8 +428,6 @@ bool wxIsBusy()
 
 void wxSetCursor( const wxCursor& cursor )
 {
-    if (g_isIdle)
-        wxapp_install_idle_handler();
-
     g_globalCursor = cursor;
+    wxTheApp->WakeUpIdle();
 }