Added implementations for two cases of wxSystemSettingsNative::GetMetric to

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

diff --git a/src/gtk1/bitmap.cpp b/src/gtk1/bitmap.cpp
index 033071565ef845fdc622e3258135bef48b7be14c..4074770d2609c9f1a73fea2d3f73a6f745f9579c 100644 (file)
--- a/src/gtk1/bitmap.cpp
+++ b/src/gtk1/bitmap.cpp
@@ -121,20 +121,21 @@ bool wxMask::Create( const wxBitmap& bitmap,
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 
     int bpp = visual->depth;
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 
     int bpp = visual->depth;

-    if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
+    if ((bpp == 16) && (visual->red_mask != 0xf800))
+        bpp = 15;

     if (bpp == 15)
     {
         red = red & 0xf8;
         green = green & 0xf8;
         blue = blue & 0xf8;
     if (bpp == 15)
     {
         red = red & 0xf8;
         green = green & 0xf8;
         blue = blue & 0xf8;

-    } else
-    if (bpp == 16)
+    }
+    else if (bpp == 16)

     {
         red = red & 0xf8;
         green = green & 0xfc;
         blue = blue & 0xf8;
     {
         red = red & 0xf8;
         green = green & 0xfc;
         blue = blue & 0xf8;

-    } else
-    if (bpp == 12)
+    }
+    else if (bpp == 12)

     {
         red = red & 0xf0;
         green = green & 0xf0;
     {
         red = red & 0xf0;
         green = green & 0xf0;


@@ -253,10 +254,12 @@ wxBitmapRefData::wxBitmapRefData()
 
 wxBitmapRefData::~wxBitmapRefData()
 {
 
 wxBitmapRefData::~wxBitmapRefData()
 {

-    if (m_pixmap) gdk_pixmap_unref( m_pixmap );
-    if (m_bitmap) gdk_bitmap_unref( m_bitmap );
-    if (m_mask) delete m_mask;
-    if (m_palette) delete m_palette;
+    if (m_pixmap)
+        gdk_pixmap_unref( m_pixmap );
+    if (m_bitmap)
+        gdk_bitmap_unref( m_bitmap );
+    delete m_mask;
+    delete m_palette;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -278,14 +281,18 @@ bool wxBitmap::Create( int width, int height, int depth )
 {
     UnRef();
 
 {
     UnRef();
 

-    wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
+    if ( width <= 0 || height <= 0 )
+    {
+        return false;
+    }

 
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 
 
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 

-    if (depth == -1) depth = visual->depth;
+    if (depth == -1)
+        depth = visual->depth;

 
 

-    wxCHECK_MSG( (depth == visual->depth) ||
-                 (depth == 1), FALSE, wxT("invalid bitmap depth") )
+    wxCHECK_MSG( (depth == visual->depth) || (depth == 1), FALSE,
+                    wxT("invalid bitmap depth") )

 
     m_refData = new wxBitmapRefData();
     M_BMPDATA->m_mask = (wxMask *) NULL;
 
     m_refData = new wxBitmapRefData();
     M_BMPDATA->m_mask = (wxMask *) NULL;


@@ -328,7 +335,7 @@ bool wxBitmap::CreateFromXpm( const char **bits )
     }
 
     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
     }
 
     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );

-    
+

     M_BMPDATA->m_bpp = visual->depth;  // Can we get a different depth from create_from_xpm_d() ?
 
     return TRUE;
     M_BMPDATA->m_bpp = visual->depth;  // Can we get a different depth from create_from_xpm_d() ?
 
     return TRUE;


@@ -341,23 +348,28 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
     wxCHECK_MSG( depth == -1 || depth == 1, FALSE, wxT("invalid bitmap depth") )
 
     wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
     wxCHECK_MSG( depth == -1 || depth == 1, FALSE, wxT("invalid bitmap depth") )
 

+    int width = image.GetWidth();
+    int height = image.GetHeight();
+
+    if ( width <= 0 || height <= 0 )
+    {
+        return false;
+    }
+

     m_refData = new wxBitmapRefData();
 
     m_refData = new wxBitmapRefData();
 

+    SetHeight( height );
+    SetWidth( width );
+

     // ------
     // ------

-    // convertion to mono bitmap:
+    // conversion to mono bitmap:

     // ------
     if (depth == 1)
     {
     // ------
     if (depth == 1)
     {

-        int width = image.GetWidth();
-        int height = image.GetHeight();
-
-        SetHeight( height );
-        SetWidth( width );
-

         SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
 
         SetDepth( 1 );
         SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
 
         SetDepth( 1 );

-        
+

         GdkVisual *visual = wxTheApp->GetGdkVisual();
 
         // Create picture image
         GdkVisual *visual = wxTheApp->GetGdkVisual();
 
         // Create picture image


@@ -440,16 +452,10 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
     }
 
     // ------
     }
 
     // ------

-    // convertion to colour bitmap:
+    // conversion to colour bitmap:

     // ------
     else
     {
     // ------
     else
     {

-        int width = image.GetWidth();
-        int height = image.GetHeight();
-
-        SetHeight( height );
-        SetWidth( width );
-

         SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
 
         GdkVisual *visual = wxTheApp->GetGdkVisual();
         SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
 
         GdkVisual *visual = wxTheApp->GetGdkVisual();


@@ -457,11 +463,13 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
         int bpp = visual->depth;
 
         SetDepth( bpp );
         int bpp = visual->depth;
 
         SetDepth( bpp );

-        
-        if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
-        if (bpp < 8) bpp = 8;

 
 

-        // We handle 8-bit bitmaps ourselves using the colour cube, 12-bit 
+        if ((bpp == 16) && (visual->red_mask != 0xf800))
+            bpp = 15;
+        else if (bpp < 8)
+            bpp = 8;
+
+        // We handle 8-bit bitmaps ourselves using the colour cube, 12-bit

         // visuals are not supported by GDK so we do these ourselves, too.
         // 15-bit and 16-bit should actually work and 24-bit certainly does.
 #ifdef __sgi
         // visuals are not supported by GDK so we do these ourselves, too.
         // 15-bit and 16-bit should actually work and 24-bit certainly does.
 #ifdef __sgi


@@ -568,7 +576,7 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
                             GdkColormap *cmap = gtk_widget_get_default_colormap();
                             GdkColor *colors = cmap->colors;
                             int max = 3 * (65536);
                             GdkColormap *cmap = gtk_widget_get_default_colormap();
                             GdkColor *colors = cmap->colors;
                             int max = 3 * (65536);

-    
+

                             for (int i = 0; i < cmap->size; i++)
                             {
                                 int rdiff = (r << 8) - colors[i].red;
                             for (int i = 0; i < cmap->size; i++)
                             {
                                 int rdiff = (r << 8) - colors[i].red;


@@ -578,9 +586,9 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
                                 if (sum < max) { pixel = i; max = sum; }
                             }
                         }
                                 if (sum < max) { pixel = i; max = sum; }
                             }
                         }

-    
+

                         gdk_image_put_pixel( data_image, x, y, pixel );
                         gdk_image_put_pixel( data_image, x, y, pixel );

-    
+

                         break;
                     }
                     case 12:  // SGI only
                         break;
                     }
                     case 12:  // SGI only


@@ -677,6 +685,13 @@ bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
 
 wxImage wxBitmap::ConvertToImage() const
 {
 
 wxImage wxBitmap::ConvertToImage() const
 {

+    // the colour used as transparent one in wxImage and the one it is replaced
+    // with when it really occurs in the bitmap
+    static const int MASK_RED = 1;
+    static const int MASK_GREEN = 2;
+    static const int MASK_BLUE = 3;
+    static const int MASK_BLUE_REPLACEMENT = 2;
+

     wxImage image;
 
     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
     wxImage image;
 
     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );


@@ -685,15 +700,16 @@ wxImage wxBitmap::ConvertToImage() const
     if (GetPixmap())
     {
         gdk_image = gdk_image_get( GetPixmap(),
     if (GetPixmap())
     {
         gdk_image = gdk_image_get( GetPixmap(),

-            0, 0,
-            GetWidth(), GetHeight() );
-    } else
-    if (GetBitmap())
+                                   0, 0,
+                                   GetWidth(), GetHeight() );
+    }
+    else if (GetBitmap())

     {
         gdk_image = gdk_image_get( GetBitmap(),
     {
         gdk_image = gdk_image_get( GetBitmap(),

-            0, 0,
-            GetWidth(), GetHeight() );
-    } else
+                                   0, 0,
+                                   GetWidth(), GetHeight() );
+    }
+    else

     {
         wxFAIL_MSG( wxT("Ill-formed bitmap") );
     }
     {
         wxFAIL_MSG( wxT("Ill-formed bitmap") );
     }


@@ -702,7 +718,7 @@ wxImage wxBitmap::ConvertToImage() const
 
     image.Create( GetWidth(), GetHeight() );
     char unsigned *data = image.GetData();
 
     image.Create( GetWidth(), GetHeight() );
     char unsigned *data = image.GetData();

-    
+

     if (!data)
     {
         gdk_image_destroy( gdk_image );
     if (!data)
     {
         gdk_image_destroy( gdk_image );


@@ -714,10 +730,10 @@ wxImage wxBitmap::ConvertToImage() const
     if (GetMask())
     {
         gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
     if (GetMask())
     {
         gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),

-            0, 0,
-            GetWidth(), GetHeight() );
+                                        0, 0,
+                                        GetWidth(), GetHeight() );

 
 

-        image.SetMaskColour( 16, 16, 16 );  // anything unlikely and dividable
+        image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE );

     }
 
     int bpp = -1;
     }
 
     int bpp = -1;


@@ -734,9 +750,10 @@ wxImage wxBitmap::ConvertToImage() const
         GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
         if (visual == NULL)
             visual = wxTheApp->GetGdkVisual();
         GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
         if (visual == NULL)
             visual = wxTheApp->GetGdkVisual();

-        
+

         bpp = visual->depth;
         bpp = visual->depth;

-        if (bpp == 16) bpp = visual->red_prec + visual->green_prec + visual->blue_prec;
+        if (bpp == 16)
+            bpp = visual->red_prec + visual->green_prec + visual->blue_prec;

         red_shift_right = visual->red_shift;
         red_shift_left = 8-visual->red_prec;
         green_shift_right = visual->green_shift;
         red_shift_right = visual->red_shift;
         red_shift_left = 8-visual->red_prec;
         green_shift_right = visual->green_shift;


@@ -797,9 +814,15 @@ wxImage wxBitmap::ConvertToImage() const
                 int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
                 if (mask_pixel == 0)
                 {
                 int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
                 if (mask_pixel == 0)
                 {

-                    data[pos] = 16;
-                    data[pos+1] = 16;
-                    data[pos+2] = 16;
+                    data[pos] = MASK_RED;
+                    data[pos+1] = MASK_GREEN;
+                    data[pos+2] = MASK_BLUE;
+                }
+                else if ( data[pos] == MASK_RED &&
+                            data[pos+1] == MASK_GREEN &&
+                                data[pos+2] == MASK_BLUE )
+                {
+                    data[pos+2] = MASK_BLUE_REPLACEMENT;

                 }
             }
 
                 }
             }
 


@@ -814,7 +837,7 @@ wxImage wxBitmap::ConvertToImage() const
 }
 
 wxBitmap::wxBitmap( const wxBitmap& bmp )
 }
 
 wxBitmap::wxBitmap( const wxBitmap& bmp )

-    : wxGDIObject()
+        : wxGDIObject()

 {
     Ref( bmp );
 }
 {
     Ref( bmp );
 }


@@ -826,16 +849,24 @@ wxBitmap::wxBitmap( const wxString &filename, int type )
 
 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
 {
 
 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
 {

-    m_refData = new wxBitmapRefData();
+    if ( width > 0 && height > 0 )
+    {
+        m_refData = new wxBitmapRefData();

 
 

-    M_BMPDATA->m_mask = (wxMask *) NULL;
-    M_BMPDATA->m_bitmap =
-      gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
-    M_BMPDATA->m_width = width;
-    M_BMPDATA->m_height = height;
-    M_BMPDATA->m_bpp = 1;
+        M_BMPDATA->m_mask = (wxMask *) NULL;
+        M_BMPDATA->m_bitmap = gdk_bitmap_create_from_data
+                              (
+                                wxGetRootWindow()->window,
+                                (gchar *) bits,
+                                width,
+                                height
+                              );
+        M_BMPDATA->m_width = width;
+        M_BMPDATA->m_height = height;
+        M_BMPDATA->m_bpp = 1;

 
 

-    wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
+        wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
+    }

 }
 
 wxBitmap::~wxBitmap()
 }
 
 wxBitmap::~wxBitmap()


@@ -963,7 +994,8 @@ bool wxBitmap::LoadFile( const wxString &name, int type )
 {
     UnRef();
 
 {
     UnRef();
 

-    if (!wxFileExists(name)) return FALSE;
+    if (!wxFileExists(name))
+        return FALSE;

 
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 
 
     GdkVisual *visual = wxTheApp->GetGdkVisual();
 


@@ -973,7 +1005,13 @@ bool wxBitmap::LoadFile( const wxString &name, int type )
 
         GdkBitmap *mask = (GdkBitmap*) NULL;
 
 
         GdkBitmap *mask = (GdkBitmap*) NULL;
 

-        M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxGetRootWindow()->window, &mask, NULL, name.fn_str() );
+        M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm
+                              (
+                                wxGetRootWindow()->window,
+                                &mask,
+                                NULL,
+                                name.fn_str()
+                              );

 
         if (mask)
         {
 
         if (mask)
         {


@@ -988,10 +1026,10 @@ bool wxBitmap::LoadFile( const wxString &name, int type )
     else // try if wxImage can load it
     {
         wxImage image;
     else // try if wxImage can load it
     {
         wxImage image;

-        if (!image.LoadFile( name, type )) return FALSE;
-        if (image.Ok())
-            *this = wxBitmap(image);
-        else return FALSE;
+        if ( !image.LoadFile( name, type ) || !image.Ok() )
+            return FALSE;
+
+        *this = wxBitmap(image);

     }
 
     return TRUE;
     }
 
     return TRUE;


@@ -999,42 +1037,48 @@ bool wxBitmap::LoadFile( const wxString &name, int type )
 
 wxPalette *wxBitmap::GetPalette() const
 {
 
 wxPalette *wxBitmap::GetPalette() const
 {

-    if (!Ok()) return (wxPalette *) NULL;
+    if (!Ok())
+        return (wxPalette *) NULL;

 
     return M_BMPDATA->m_palette;
 }
 
 void wxBitmap::SetHeight( int height )
 {
 
     return M_BMPDATA->m_palette;
 }
 
 void wxBitmap::SetHeight( int height )
 {

-    if (!m_refData) m_refData = new wxBitmapRefData();
+    if (!m_refData)
+        m_refData = new wxBitmapRefData();

 
     M_BMPDATA->m_height = height;
 }
 
 void wxBitmap::SetWidth( int width )
 {
 
     M_BMPDATA->m_height = height;
 }
 
 void wxBitmap::SetWidth( int width )
 {

-    if (!m_refData) m_refData = new wxBitmapRefData();
+    if (!m_refData)
+        m_refData = new wxBitmapRefData();

 
     M_BMPDATA->m_width = width;
 }
 
 void wxBitmap::SetDepth( int depth )
 {
 
     M_BMPDATA->m_width = width;
 }
 
 void wxBitmap::SetDepth( int depth )
 {

-    if (!m_refData) m_refData = new wxBitmapRefData();
+    if (!m_refData)
+        m_refData = new wxBitmapRefData();

 
     M_BMPDATA->m_bpp = depth;
 }
 
 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
 {
 
     M_BMPDATA->m_bpp = depth;
 }
 
 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
 {

-    if (!m_refData) m_refData = new wxBitmapRefData();
+    if (!m_refData)
+        m_refData = new wxBitmapRefData();

 
     M_BMPDATA->m_pixmap = pixmap;
 }
 
 void wxBitmap::SetBitmap( GdkPixmap *bitmap )
 {
 
     M_BMPDATA->m_pixmap = pixmap;
 }
 
 void wxBitmap::SetBitmap( GdkPixmap *bitmap )
 {

-    if (!m_refData) m_refData = new wxBitmapRefData();
+    if (!m_refData)
+        m_refData = new wxBitmapRefData();

 
     M_BMPDATA->m_bitmap = bitmap;
 }
 
     M_BMPDATA->m_bitmap = bitmap;
 }