X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c2fa61e833ffe9789ef3d3327157e17101a4a2ce..cc2aecdef579e57f84eaa07cc72f62a43fc474ba:/src/gtk1/cursor.cpp

diff --git a/src/gtk1/cursor.cpp b/src/gtk1/cursor.cpp
index c419a36837..b3e56ef837 100644
--- a/src/gtk1/cursor.cpp
+++ b/src/gtk1/cursor.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        cursor.cpp
+// Name:        src/gtk1/cursor.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,14 +7,15 @@
 // 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"
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/utils.h"
+#endif // WX_PRECOMP
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
@@ -30,19 +31,23 @@ extern bool g_isIdle;
 // wxCursor
 //-----------------------------------------------------------------------------
 
-class wxCursorRefData: public wxObjectRefData
+class wxCursorRefData : public wxGDIRefData
 {
-  public:
-
+public:
     wxCursorRefData();
-    ~wxCursorRefData();
+    virtual ~wxCursorRefData();
 
     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()
@@ -58,16 +63,33 @@ IMPLEMENT_DYNAMIC_CLASS(wxCursor,wxObject)
 
 wxCursor::wxCursor()
 {
+
 }
 
-wxCursor::wxCursor( int cursorId )
+void wxCursor::InitFromStock( wxStockCursor cursorId )
 {
     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;
@@ -99,11 +121,10 @@ 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 +135,7 @@ 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;
@@ -139,44 +160,182 @@ wxCursor::wxCursor(const char bits[], int width, int  height,
     gdk_bitmap_unref( mask );
 }
 
+#if wxUSE_IMAGE
 
-wxCursor::wxCursor( const wxCursor &cursor )
+wxCursor::wxCursor( const wxImage & image )
 {
-    Ref( cursor );
-}
+    unsigned char * rgbBits = image.GetData();
+    int w = image.GetWidth() ;
+    int h = image.GetHeight();
+    bool bHasMask = image.HasMask();
+    int imagebitcount = (w*h)/8;
 
-wxCursor::~wxCursor()
-{
-}
+    unsigned char * bits = new unsigned char [imagebitcount];
+    unsigned char * maskBits = new unsigned char [imagebitcount];
 
-wxCursor& wxCursor::operator = ( const wxCursor& cursor )
-{
-    if (*this == cursor)
-        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;
+        }
+    }
+
+    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) );
 
-    Ref( cursor );
+    int fg_intensity = fg.Red() + fg.Green() + fg.Blue();
+    int bg_intensity = bg.Red() + bg.Green() + bg.Blue();
 
-    return *this;
+    if (bg_intensity > fg_intensity)
+    {
+        //swap fg and bg
+        wxColour tmp = fg;
+        fg = bg;
+        bg = tmp;
+    }
+
+    int hotSpotX;
+    int hotSpotY;
+
+    if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_X))
+        hotSpotX = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_X);
+    else
+        hotSpotX = 0;
+
+    if (image.HasOption(wxIMAGE_OPTION_CUR_HOTSPOT_Y))
+        hotSpotY = image.GetOptionInt(wxIMAGE_OPTION_CUR_HOTSPOT_Y);
+    else
+        hotSpotY = 0;
+
+    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;
 }
 
-bool wxCursor::operator == ( const wxCursor& cursor ) const
+#endif // wxUSE_IMAGE
+
+wxCursor::~wxCursor()
 {
-    return m_refData == cursor.m_refData;
 }
 
-bool wxCursor::operator != ( const wxCursor& cursor ) const
+GdkCursor *wxCursor::GetCursor() const
 {
-    return m_refData != cursor.m_refData;
+    return M_CURSORDATA->m_cursor;
 }
 
-bool wxCursor::Ok() 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;
+    wxFAIL_MSG( wxS("Cloning cursors is not implemented in wxGTK.") );
+
+    return new wxCursorRefData;
 }
 
 //-----------------------------------------------------------------------------
@@ -207,15 +366,15 @@ 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;
 
-    wxASSERT_MSG( !gs_savedCursor.Ok(),
+    wxASSERT_MSG( !gs_savedCursor.IsOk(),
                   wxT("forgot to call wxEndBusyCursor, will leak memory") );
 
     gs_savedCursor = g_globalCursor;
@@ -223,7 +382,9 @@ void wxBeginBusyCursor( wxCursor *WXUNUSED(cursor) )
     wxSetCursor( wxCursor(wxCURSOR_WATCH) );
 
     if (wxTheApp)
-        wxTheApp->SendIdleEvents();
+        wxTheApp->ProcessIdle();
+
+    gdk_flush();
 }
 
 bool wxIsBusy()