/////////////////////////////////////////////////////////////////////////////
-// Name: bitmap.cpp
+// Name: src/gtk/bitmap.cpp
// Purpose:
// Author: Robert Roebling
// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "bitmap.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
-#include "wx/defs.h"
-
-#include "wx/palette.h"
#include "wx/bitmap.h"
-#include "wx/icon.h"
-#include "wx/filefn.h"
-#include "wx/image.h"
-#include "wx/dcmemory.h"
-#include "wx/app.h"
-
-#ifdef __WXGTK20__
- // need this to get gdk_image_new_bitmap()
- #define GDK_ENABLE_BROKEN
+
+#ifndef WX_PRECOMP
+ #include "wx/app.h"
+ #include "wx/palette.h"
+ #include "wx/icon.h"
+ #include "wx/math.h"
+ #include "wx/image.h"
+ #include "wx/colour.h"
#endif
-#include <gdk/gdk.h>
+#include "wx/rawbmp.h"
+
#include <gtk/gtk.h>
-#include <gdk/gdkx.h>
-
-#ifdef __WXGTK20__
- #include <gdk/gdkimage.h>
-#else // GTK+ 1.2
- #include <gdk/gdkrgb.h>
-#endif // GTK+ 2.0/1.2
-
-#include <math.h>
-
-extern void gdk_wx_draw_bitmap (GdkDrawable *drawable,
- GdkGC *gc,
- GdkDrawable *src,
- gint xsrc,
- gint ysrc,
- gint xdest,
- gint ydest,
- gint width,
- gint height);
//-----------------------------------------------------------------------------
// data
Create( bitmap, colour );
}
+#if wxUSE_PALETTE
wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
{
m_bitmap = (GdkBitmap *) NULL;
Create( bitmap, paletteIndex );
}
+#endif // wxUSE_PALETTE
wxMask::wxMask( const wxBitmap& bitmap )
{
wxMask::~wxMask()
{
if (m_bitmap)
- gdk_bitmap_unref( m_bitmap );
+ g_object_unref (m_bitmap);
}
bool wxMask::Create( const wxBitmap& bitmap,
{
if (m_bitmap)
{
- gdk_bitmap_unref( m_bitmap );
+ g_object_unref (m_bitmap);
m_bitmap = (GdkBitmap*) NULL;
}
- wxImage image = bitmap.ConvertToImage();
- if (!image.Ok()) return FALSE;
-
- m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, image.GetWidth(), image.GetHeight(), 1 );
- GdkGC *gc = gdk_gc_new( m_bitmap );
-
- GdkColor color;
- color.red = 65000;
- color.green = 65000;
- color.blue = 65000;
- color.pixel = 1;
- gdk_gc_set_foreground( gc, &color );
- gdk_gc_set_fill( gc, GDK_SOLID );
- gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() );
-
- unsigned char *data = image.GetData();
- int index = 0;
-
- unsigned char red = colour.Red();
- unsigned char green = colour.Green();
- unsigned char blue = colour.Blue();
+ const int w = bitmap.GetWidth();
+ const int h = bitmap.GetHeight();
- GdkVisual *visual = wxTheApp->GetGdkVisual();
+ // create mask as XBM format bitmap
- int bpp = visual->depth;
- if ((bpp == 16) && (visual->red_mask != 0xf800))
- bpp = 15;
- if (bpp == 15)
+ // one bit per pixel, each row starts on a byte boundary
+ const size_t out_size = size_t((w + 7) / 8) * unsigned(h);
+ wxByte* out = new wxByte[out_size];
+ // set bits are unmasked
+ memset(out, 0xff, out_size);
+ unsigned bit_index = 0;
+ if (bitmap.HasPixbuf())
{
- red = red & 0xf8;
- green = green & 0xf8;
- blue = blue & 0xf8;
- }
- else if (bpp == 16)
- {
- red = red & 0xf8;
- green = green & 0xfc;
- blue = blue & 0xf8;
- }
- else if (bpp == 12)
- {
- red = red & 0xf0;
- green = green & 0xf0;
- blue = blue & 0xf0;
+ const wxByte r_mask = colour.Red();
+ const wxByte g_mask = colour.Green();
+ const wxByte b_mask = colour.Blue();
+ GdkPixbuf* pixbuf = bitmap.GetPixbuf();
+ const wxByte* in = gdk_pixbuf_get_pixels(pixbuf);
+ const int inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0);
+ const int rowpadding = gdk_pixbuf_get_rowstride(pixbuf) - inc * w;
+ for (int y = 0; y < h; y++, in += rowpadding)
+ {
+ for (int x = 0; x < w; x++, in += inc, bit_index++)
+ if (in[0] == r_mask && in[1] == g_mask && in[2] == b_mask)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ // move index to next byte boundary
+ bit_index = (bit_index + 7) & ~7u;
+ }
}
-
- color.red = 0;
- color.green = 0;
- color.blue = 0;
- color.pixel = 0;
- gdk_gc_set_foreground( gc, &color );
-
- for (int j = 0; j < image.GetHeight(); j++)
+ else
{
- int start_x = -1;
- int i;
- for (i = 0; i < image.GetWidth(); i++)
+ GdkImage* image = gdk_drawable_get_image(bitmap.GetPixmap(), 0, 0, w, h);
+ GdkColormap* colormap = gdk_image_get_colormap(image);
+ guint32 mask_pixel;
+ if (colormap == NULL)
+ // mono bitmap, white is pixel value 0
+ mask_pixel = guint32(colour.Red() != 255 || colour.Green() != 255 || colour.Blue() != 255);
+ else
{
- if ((data[index] == red) &&
- (data[index+1] == green) &&
- (data[index+2] == blue))
- {
- if (start_x == -1)
- start_x = i;
- }
- else
- {
- if (start_x != -1)
- {
- gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j );
- start_x = -1;
- }
- }
- index += 3;
+ wxColor c(colour);
+ c.CalcPixel(colormap);
+ mask_pixel = c.GetPixel();
}
- if (start_x != -1)
- gdk_draw_line( m_bitmap, gc, start_x, j, i, j );
+ for (int y = 0; y < h; y++)
+ {
+ for (int x = 0; x < w; x++, bit_index++)
+ if (gdk_image_get_pixel(image, x, y) == mask_pixel)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ bit_index = (bit_index + 7) & ~7u;
+ }
+ g_object_unref(image);
}
-
- gdk_gc_unref( gc );
-
- return TRUE;
+ m_bitmap = gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h);
+ delete[] out;
+ return true;
}
+#if wxUSE_PALETTE
bool wxMask::Create( const wxBitmap& bitmap, int paletteIndex )
{
unsigned char r,g,b;
wxPalette *pal = bitmap.GetPalette();
- wxCHECK_MSG( pal, FALSE, wxT("Cannot create mask from bitmap without palette") );
+ wxCHECK_MSG( pal, false, wxT("Cannot create mask from bitmap without palette") );
pal->GetRGB(paletteIndex, &r, &g, &b);
return Create(bitmap, wxColour(r, g, b));
}
+#endif // wxUSE_PALETTE
bool wxMask::Create( const wxBitmap& bitmap )
{
if (m_bitmap)
{
- gdk_bitmap_unref( m_bitmap );
+ g_object_unref (m_bitmap);
m_bitmap = (GdkBitmap*) NULL;
}
- if (!bitmap.Ok()) return FALSE;
+ if (!bitmap.Ok()) return false;
- wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
+ wxCHECK_MSG( bitmap.GetDepth() == 1, false, wxT("Cannot create mask from colour bitmap") );
m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
- if (!m_bitmap) return FALSE;
+ if (!m_bitmap) return false;
GdkGC *gc = gdk_gc_new( m_bitmap );
+ gdk_gc_set_function(gc, GDK_COPY_INVERT);
+ gdk_draw_drawable(m_bitmap, gc, bitmap.GetPixmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight());
+ g_object_unref (gc);
- gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );
-
- gdk_gc_unref( gc );
-
- return TRUE;
+ return true;
}
GdkBitmap *wxMask::GetBitmap() const
// wxBitmap
//-----------------------------------------------------------------------------
-class wxBitmapRefData: public wxObjectRefData
+class wxBitmapRefData: public wxGDIRefData
{
public:
wxBitmapRefData();
- ~wxBitmapRefData();
+ virtual ~wxBitmapRefData();
+
+ virtual bool IsOk() const { return m_pixmap || m_pixbuf; }
GdkPixmap *m_pixmap;
- GdkBitmap *m_bitmap;
+ GdkPixbuf *m_pixbuf;
wxMask *m_mask;
int m_width;
int m_height;
int m_bpp;
+#if wxUSE_PALETTE
wxPalette *m_palette;
+#endif // wxUSE_PALETTE
};
wxBitmapRefData::wxBitmapRefData()
{
m_pixmap = (GdkPixmap *) NULL;
- m_bitmap = (GdkBitmap *) NULL;
+ m_pixbuf = (GdkPixbuf *) NULL;
m_mask = (wxMask *) NULL;
m_width = 0;
m_height = 0;
m_bpp = 0;
+#if wxUSE_PALETTE
m_palette = (wxPalette *) NULL;
+#endif // wxUSE_PALETTE
}
wxBitmapRefData::~wxBitmapRefData()
{
if (m_pixmap)
- gdk_pixmap_unref( m_pixmap );
- if (m_bitmap)
- gdk_bitmap_unref( m_bitmap );
+ g_object_unref (m_pixmap);
+ if (m_pixbuf)
+ g_object_unref (m_pixbuf);
delete m_mask;
+#if wxUSE_PALETTE
delete m_palette;
+#endif // wxUSE_PALETTE
}
//-----------------------------------------------------------------------------
-#define M_BMPDATA ((wxBitmapRefData *)m_refData)
+#define M_BMPDATA wx_static_cast(wxBitmapRefData*, m_refData)
IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
-wxBitmap::wxBitmap()
+wxBitmap::wxBitmap(int width, int height, int depth)
{
+ Create(width, height, depth);
}
-wxBitmap::wxBitmap( int width, int height, int depth )
+wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type)
{
- Create( width, height, depth );
+ LoadFile(filename, type);
}
-bool wxBitmap::Create( int width, int height, int depth )
+wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
{
- UnRef();
-
- if ( width <= 0 || height <= 0 )
+ wxASSERT(depth == 1);
+ if (width > 0 && height > 0 && depth == 1)
{
- return false;
- }
+ SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height));
- GdkVisual *visual = wxTheApp->GetGdkVisual();
-
- if (depth == -1)
- depth = visual->depth;
-
- wxCHECK_MSG( (depth == visual->depth) || (depth == 1), FALSE,
- wxT("invalid bitmap depth") )
-
- m_refData = new wxBitmapRefData();
- M_BMPDATA->m_mask = (wxMask *) NULL;
- M_BMPDATA->m_width = width;
- M_BMPDATA->m_height = height;
- if (depth == 1)
- {
- M_BMPDATA->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
- M_BMPDATA->m_bpp = 1;
- }
- else
- {
- M_BMPDATA->m_pixmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, depth );
- M_BMPDATA->m_bpp = visual->depth;
+ wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") );
}
-
- return Ok();
}
-bool wxBitmap::CreateFromXpm( const char **bits )
+wxBitmap::wxBitmap(const char* const* bits)
{
- UnRef();
-
- wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
-
- GdkVisual *visual = wxTheApp->GetGdkVisual();
-
- m_refData = new wxBitmapRefData();
-
- GdkBitmap *mask = (GdkBitmap*) NULL;
+ wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data"));
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxGetRootWindow()->window, &mask, NULL, (gchar **) bits );
+ GdkBitmap* mask = NULL;
+ SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, wx_const_cast(char**, bits)));
- wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") );
-
- if (mask)
+ if (M_BMPDATA->m_pixmap != NULL && mask != NULL)
{
- M_BMPDATA->m_mask = new wxMask();
+ M_BMPDATA->m_mask = new wxMask;
M_BMPDATA->m_mask->m_bitmap = mask;
}
-
- 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;
}
-wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy )
+wxBitmap::~wxBitmap()
{
- wxCHECK_MSG( Ok(), wxNullBitmap, wxT("invalid bitmap") );
-
- if (newy==M_BMPDATA->m_width && newy==M_BMPDATA->m_height)
- return *this;
-
- GdkImage *img = (GdkImage*) NULL;
- if (GetPixmap())
- img = gdk_image_get( GetPixmap(), 0, 0, GetWidth(), GetHeight() );
- else if (GetBitmap())
- img = gdk_image_get( GetBitmap(), 0, 0, GetWidth(), GetHeight() );
- else
- wxFAIL_MSG( wxT("Ill-formed bitmap") );
-
- wxCHECK_MSG( img, wxNullBitmap, wxT("couldn't create image") );
+}
- wxBitmap bmp;
- int bpp = -1;
+bool wxBitmap::Create( int width, int height, int depth )
+{
+ UnRef();
- int width = wxMax(newx, 1);
- int height = wxMax(newy, 1);
- width = wxMin(width, clipwidth);
- height = wxMin(height, clipheight);
-
- GdkGC *gc = NULL;
- GdkPixmap *dstpix = NULL;
- if (GetPixmap())
+ if ( width <= 0 || height <= 0 )
{
- GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
- if (visual == NULL)
- visual = wxTheApp->GetGdkVisual();
-
- bpp = visual->depth;
- bmp = wxBitmap(width,height,bpp);
- dstpix = bmp.GetPixmap();
- gc = gdk_gc_new( dstpix );
+ return false;
}
- char *dst = NULL;
- long dstbyteperline = 0;
-
- if (GetBitmap())
+ if (depth == 32)
{
- bpp = 1;
- dstbyteperline = width/8*M_BMPDATA->m_bpp;
- if (width*M_BMPDATA->m_bpp % 8 != 0)
- dstbyteperline++;
- dst = (char*) malloc(dstbyteperline*height);
+ SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32);
}
-
- // be careful to use the right scaling factor
- float scx = (float)M_BMPDATA->m_width/(float)newx;
- float scy = (float)M_BMPDATA->m_height/(float)newy;
- // prepare accel-tables
- int *tablex = (int *)calloc(width,sizeof(int));
- int *tabley = (int *)calloc(height,sizeof(int));
-
- // accel table filled with clipped values
- for (int x = 0; x < width; x++)
- tablex[x] = (int) (scx * (x+clipx));
- for (int y = 0; y < height; y++)
- tabley[y] = (int) (scy * (y+clipy));
-
- // Main rescaling routine starts here
- for (int h = 0; h < height; h++)
+ else
{
- char outbyte = 0;
- int old_x = -1;
- guint32 old_pixval = 0;
-
- for (int w = 0; w < width; w++)
+ if (depth != 1)
{
- guint32 pixval;
- int x = tablex[w];
- if (x == old_x)
- pixval = old_pixval;
- else
- {
- pixval = gdk_image_get_pixel( img, x, tabley[h] );
- old_pixval = pixval;
- old_x = x;
- }
-
- if (bpp == 1)
- {
- if (!pixval)
- {
- char bit=1;
- char shift = bit << w % 8;
- outbyte |= shift;
- }
-
- if ((w+1)%8==0)
- {
- dst[h*dstbyteperline+w/8] = outbyte;
- outbyte = 0;
- }
- }
- else
- {
- GdkColor col;
- col.pixel = pixval;
- gdk_gc_set_foreground( gc, &col );
- gdk_draw_point( dstpix, gc, w, h);
- }
- }
-
- // do not forget the last byte
- if ((bpp == 1) && (width % 8 != 0))
- dst[h*dstbyteperline+width/8] = outbyte;
- }
-
- gdk_image_destroy( img );
- if (gc) gdk_gc_unref( gc );
-
- if (bpp == 1)
- {
- bmp = wxBitmap( (const char *)dst, width, height, 1 );
- free( dst );
- }
-
- if (GetMask())
- {
- dstbyteperline = width/8;
- if (width % 8 != 0)
- dstbyteperline++;
- dst = (char*) malloc(dstbyteperline*height);
- img = gdk_image_get( GetMask()->GetBitmap(), 0, 0, GetWidth(), GetHeight() );
+ const GdkVisual* visual = wxTheApp->GetGdkVisual();
+ if (depth == -1)
+ depth = visual->depth;
- for (int h = 0; h < height; h++)
- {
- char outbyte = 0;
- int old_x = -1;
- guint32 old_pixval = 0;
-
- for (int w = 0; w < width; w++)
- {
- guint32 pixval;
- int x = tablex[w];
- if (x == old_x)
- pixval = old_pixval;
- else
- {
- pixval = gdk_image_get_pixel( img, x, tabley[h] );
- old_pixval = pixval;
- old_x = x;
- }
-
- if (pixval)
- {
- char bit=1;
- char shift = bit << w % 8;
- outbyte |= shift;
- }
-
- if ((w+1)%8 == 0)
- {
- dst[h*dstbyteperline+w/8] = outbyte;
- outbyte = 0;
- }
- }
-
- // do not forget the last byte
- if (width % 8 != 0)
- dst[h*dstbyteperline+width/8] = outbyte;
+ wxCHECK_MSG(depth == visual->depth, false, wxT("invalid bitmap depth"));
}
- wxMask* mask = new wxMask;
- mask->m_bitmap = gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) dst, width, height );
- bmp.SetMask(mask);
- free( dst );
- gdk_image_destroy( img );
+ SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth));
}
- free( tablex );
- free( tabley );
-
- return bmp;
+ return Ok();
}
-bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
+wxBitmap wxBitmap::Rescale(int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy) const
{
- UnRef();
-
- 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();
-
- SetHeight( height );
- SetWidth( width );
-
- // ------
- // conversion to mono bitmap:
- // ------
- if (depth == 1)
- {
- SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
+ wxBitmap bmp;
- SetDepth( 1 );
+ wxCHECK_MSG(Ok(), bmp, wxT("invalid bitmap"));
- GdkVisual *visual = wxTheApp->GetGdkVisual();
+ int width = wxMax(newx, 1);
+ int height = wxMax(newy, 1);
+ width = wxMin(width, clipwidth);
+ height = wxMin(height, clipheight);
- // Create picture image
+ const double scale_x = double(newx) / M_BMPDATA->m_width;
+ const double scale_y = double(newy) / M_BMPDATA->m_height;
- unsigned char *data_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
+ // Converting to pixbuf, scaling with gdk_pixbuf_scale, and converting
+ // back, is faster than scaling pixmap ourselves.
- GdkImage *data_image =
- gdk_image_new_bitmap( visual, data_data, width, height );
+ // use pixbuf if already available,
+ // otherwise create temporary pixbuf from pixmap
+ GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf;
+ if (pixbuf)
+ g_object_ref(pixbuf);
+ else
+ pixbuf = gdk_pixbuf_get_from_drawable(
+ NULL, M_BMPDATA->m_pixmap, NULL,
+ 0, 0, 0, 0, M_BMPDATA->m_width, M_BMPDATA->m_height);
- // Create mask image
+ // new pixbuf for scaled wxBitmap
+ GdkPixbuf* pixbuf_scaled = gdk_pixbuf_new(
+ GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, width, height);
- GdkImage *mask_image = (GdkImage*) NULL;
+ // GDK_INTERP_NEAREST is the lowest-quality method for continuous-tone
+ // images, but the only one which preserves sharp edges
+ gdk_pixbuf_scale(
+ pixbuf, pixbuf_scaled,
+ 0, 0, width, height, -clipx, -clipy, scale_x, scale_y,
+ GDK_INTERP_NEAREST);
- if (image.HasMask())
- {
- unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
+ g_object_unref(pixbuf);
+ bmp.SetPixbuf(pixbuf_scaled, M_BMPDATA->m_bpp);
- mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
-
- wxMask *mask = new wxMask();
- mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
+ if (M_BMPDATA->m_mask)
+ {
+ pixbuf = gdk_pixbuf_get_from_drawable(
+ NULL, M_BMPDATA->m_mask->m_bitmap, NULL,
+ 0, 0, 0, 0, M_BMPDATA->m_width, M_BMPDATA->m_height);
- SetMask( mask );
- }
+ pixbuf_scaled = gdk_pixbuf_new(
+ GDK_COLORSPACE_RGB, false, 8, width, height);
- int r_mask = image.GetMaskRed();
- int g_mask = image.GetMaskGreen();
- int b_mask = image.GetMaskBlue();
+ gdk_pixbuf_scale(
+ pixbuf, pixbuf_scaled,
+ 0, 0, width, height, -clipx, -clipy, scale_x, scale_y,
+ GDK_INTERP_NEAREST);
- unsigned char* data = image.GetData();
+ g_object_unref(pixbuf);
- int index = 0;
- for (int y = 0; y < height; y++)
- {
- for (int x = 0; x < width; x++)
- {
- int r = data[index];
- index++;
- int g = data[index];
- index++;
- int b = data[index];
- index++;
-
- if (image.HasMask())
- {
- if ((r == r_mask) && (b == b_mask) && (g == g_mask))
- gdk_image_put_pixel( mask_image, x, y, 1 );
- else
- gdk_image_put_pixel( mask_image, x, y, 0 );
- }
+ // use existing functionality to create mask from scaled pixbuf
+ wxBitmap maskbmp;
+ maskbmp.SetPixbuf(pixbuf_scaled);
+ bmp.SetMask(new wxMask(maskbmp, *wxBLACK));
+ }
+ return bmp;
+}
- if ((r == 255) && (b == 255) && (g == 255))
- gdk_image_put_pixel( data_image, x, y, 1 );
- else
- gdk_image_put_pixel( data_image, x, y, 0 );
+#if wxUSE_IMAGE
- } // for
- } // for
+bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
+{
+ UnRef();
- // Blit picture
+ wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );
- GdkGC *data_gc = gdk_gc_new( GetBitmap() );
+ if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
+ return false;
- gdk_draw_image( GetBitmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
+ // create pixbuf if image has alpha and requested depth is compatible
+ if (image.HasAlpha() && (depth == -1 || depth == 32))
+ return CreateFromImageAsPixbuf(image);
- gdk_image_destroy( data_image );
- gdk_gc_unref( data_gc );
+ // otherwise create pixmap, if alpha is present it will be converted to mask
+ return CreateFromImageAsPixmap(image, depth);
+}
- // Blit mask
+bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth)
+{
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ if (depth == 1)
+ {
+ // create XBM format bitmap
- if (image.HasMask())
+ // one bit per pixel, each row starts on a byte boundary
+ const size_t out_size = size_t((w + 7) / 8) * unsigned(h);
+ wxByte* out = new wxByte[out_size];
+ // set bits are black
+ memset(out, 0xff, out_size);
+ const wxByte* in = image.GetData();
+ unsigned bit_index = 0;
+ for (int y = 0; y < h; y++)
{
- GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
-
- gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
-
- gdk_image_destroy( mask_image );
- gdk_gc_unref( mask_gc );
+ for (int x = 0; x < w; x++, in += 3, bit_index++)
+ if (in[0] == 255 && in[1] == 255 && in[2] == 255)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ // move index to next byte boundary
+ bit_index = (bit_index + 7) & ~7u;
}
+ SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h));
+ delete[] out;
}
-
- // ------
- // conversion to colour bitmap:
- // ------
else
{
- SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
-
- GdkVisual *visual = wxTheApp->GetGdkVisual();
-
- int bpp = visual->depth;
-
- SetDepth( bpp );
+ SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, w, h, depth));
+ GdkGC* gc = gdk_gc_new(M_BMPDATA->m_pixmap);
+ gdk_draw_rgb_image(
+ M_BMPDATA->m_pixmap, gc,
+ 0, 0, w, h,
+ GDK_RGB_DITHER_NONE, image.GetData(), w * 3);
+ g_object_unref(gc);
+ }
- if ((bpp == 16) && (visual->red_mask != 0xf800))
- bpp = 15;
- else if (bpp < 8)
- bpp = 8;
+ const wxByte* alpha = image.GetAlpha();
+ if (alpha != NULL || image.HasMask())
+ {
+ // create mask as XBM format bitmap
- // 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
- if (!image.HasMask() && (bpp > 16))
-#else
- if (!image.HasMask() && (bpp > 12))
-#endif
+ const size_t out_size = size_t((w + 7) / 8) * unsigned(h);
+ wxByte* out = new wxByte[out_size];
+ memset(out, 0xff, out_size);
+ unsigned bit_index = 0;
+ if (alpha != NULL)
{
- static bool s_hasInitialized = FALSE;
-
- if (!s_hasInitialized)
+ for (int y = 0; y < h; y++)
{
- gdk_rgb_init();
- s_hasInitialized = TRUE;
+ for (int x = 0; x < w; x++, bit_index++)
+ if (*alpha++ < wxIMAGE_ALPHA_THRESHOLD)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ bit_index = (bit_index + 7) & ~7u;
}
-
- GdkGC *gc = gdk_gc_new( GetPixmap() );
-
- gdk_draw_rgb_image( GetPixmap(),
- gc,
- 0, 0,
- width, height,
- GDK_RGB_DITHER_NONE,
- image.GetData(),
- width*3 );
-
- gdk_gc_unref( gc );
- return TRUE;
- }
-
- // Create picture image
-
- GdkImage *data_image =
- gdk_image_new( GDK_IMAGE_FASTEST, visual, width, height );
-
- // Create mask image
-
- GdkImage *mask_image = (GdkImage*) NULL;
-
- if (image.HasMask())
- {
- unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height );
-
- mask_image = gdk_image_new_bitmap( visual, mask_data, width, height );
-
- wxMask *mask = new wxMask();
- mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
-
- SetMask( mask );
}
-
- // Render
-
- enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR };
- byte_order b_o = RGB;
-
- if (bpp > 8)
+ else
{
- if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB;
- else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RBG;
- else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG;
- else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR;
- else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB;
- else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR;
- }
-
- int r_mask = image.GetMaskRed();
- int g_mask = image.GetMaskGreen();
- int b_mask = image.GetMaskBlue();
-
- unsigned char* data = image.GetData();
-
- int index = 0;
- for (int y = 0; y < height; y++)
- {
- for (int x = 0; x < width; x++)
+ const wxByte r_mask = image.GetMaskRed();
+ const wxByte g_mask = image.GetMaskGreen();
+ const wxByte b_mask = image.GetMaskBlue();
+ const wxByte* in = image.GetData();
+ for (int y = 0; y < h; y++)
{
- int r = data[index];
- index++;
- int g = data[index];
- index++;
- int b = data[index];
- index++;
-
- if (image.HasMask())
- {
- if ((r == r_mask) && (b == b_mask) && (g == g_mask))
- gdk_image_put_pixel( mask_image, x, y, 1 );
- else
- gdk_image_put_pixel( mask_image, x, y, 0 );
- }
-
- switch (bpp)
- {
- case 8:
- {
- int pixel = -1;
- if (wxTheApp->m_colorCube)
- {
- pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
- }
- else
- {
- 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;
- int gdiff = (g << 8) - colors[i].green;
- int bdiff = (b << 8) - colors[i].blue;
- int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
- if (sum < max) { pixel = i; max = sum; }
- }
- }
-
- gdk_image_put_pixel( data_image, x, y, pixel );
-
- break;
- }
- case 12: // SGI only
- {
- guint32 pixel = 0;
- switch (b_o)
- {
- case RGB: pixel = ((r & 0xf0) << 4) | (g & 0xf0) | ((b & 0xf0) >> 4); break;
- case RBG: pixel = ((r & 0xf0) << 4) | (b & 0xf0) | ((g & 0xf0) >> 4); break;
- case GRB: pixel = ((g & 0xf0) << 4) | (r & 0xf0) | ((b & 0xf0) >> 4); break;
- case GBR: pixel = ((g & 0xf0) << 4) | (b & 0xf0) | ((r & 0xf0) >> 4); break;
- case BRG: pixel = ((b & 0xf0) << 4) | (r & 0xf0) | ((g & 0xf0) >> 4); break;
- case BGR: pixel = ((b & 0xf0) << 4) | (g & 0xf0) | ((r & 0xf0) >> 4); break;
- }
- gdk_image_put_pixel( data_image, x, y, pixel );
- break;
- }
- case 15:
- {
- guint32 pixel = 0;
- switch (b_o)
- {
- case RGB: pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
- case RBG: pixel = ((r & 0xf8) << 7) | ((b & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
- case GRB: pixel = ((g & 0xf8) << 7) | ((r & 0xf8) << 2) | ((b & 0xf8) >> 3); break;
- case GBR: pixel = ((g & 0xf8) << 7) | ((b & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
- case BRG: pixel = ((b & 0xf8) << 7) | ((r & 0xf8) << 2) | ((g & 0xf8) >> 3); break;
- case BGR: pixel = ((b & 0xf8) << 7) | ((g & 0xf8) << 2) | ((r & 0xf8) >> 3); break;
- }
- gdk_image_put_pixel( data_image, x, y, pixel );
- break;
- }
- case 16:
- {
- // I actually don't know if for 16-bit displays, it is alway the green
- // component or the second component which has 6 bits.
- guint32 pixel = 0;
- switch (b_o)
- {
- case RGB: pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
- case RBG: pixel = ((r & 0xf8) << 8) | ((b & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
- case GRB: pixel = ((g & 0xf8) << 8) | ((r & 0xfc) << 3) | ((b & 0xf8) >> 3); break;
- case GBR: pixel = ((g & 0xf8) << 8) | ((b & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
- case BRG: pixel = ((b & 0xf8) << 8) | ((r & 0xfc) << 3) | ((g & 0xf8) >> 3); break;
- case BGR: pixel = ((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3); break;
- }
- gdk_image_put_pixel( data_image, x, y, pixel );
- break;
- }
- case 32:
- case 24:
- {
- guint32 pixel = 0;
- switch (b_o)
- {
- case RGB: pixel = (r << 16) | (g << 8) | b; break;
- case RBG: pixel = (r << 16) | (b << 8) | g; break;
- case BRG: pixel = (b << 16) | (r << 8) | g; break;
- case BGR: pixel = (b << 16) | (g << 8) | r; break;
- case GRB: pixel = (g << 16) | (r << 8) | b; break;
- case GBR: pixel = (g << 16) | (b << 8) | r; break;
- }
- gdk_image_put_pixel( data_image, x, y, pixel );
- }
- default: break;
- }
- } // for
- } // for
+ for (int x = 0; x < w; x++, in += 3, bit_index++)
+ if (in[0] == r_mask && in[1] == g_mask && in[2] == b_mask)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ bit_index = (bit_index + 7) & ~7u;
+ }
+ }
+ wxMask* mask = new wxMask;
+ mask->m_bitmap = gdk_bitmap_create_from_data(M_BMPDATA->m_pixmap, (char*)out, w, h);
+ SetMask(mask);
+ delete[] out;
+ }
+ return true;
+}
- // Blit picture
+bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
+{
+ wxASSERT(image.HasAlpha());
- GdkGC *data_gc = gdk_gc_new( GetPixmap() );
+ int width = image.GetWidth();
+ int height = image.GetHeight();
- gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
+ Create(width, height, 32);
+ GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf;
+ if (!pixbuf)
+ return false;
- gdk_image_destroy( data_image );
- gdk_gc_unref( data_gc );
+ // Copy the data:
+ const unsigned char* in = image.GetData();
+ unsigned char *out = gdk_pixbuf_get_pixels(pixbuf);
+ unsigned char *alpha = image.GetAlpha();
- // Blit mask
+ int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width;
- if (image.HasMask())
+ for (int y = 0; y < height; y++, out += rowpad)
+ {
+ for (int x = 0; x < width; x++, alpha++, out += 4, in += 3)
{
- GdkGC *mask_gc = gdk_gc_new( GetMask()->GetBitmap() );
-
- gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
-
- gdk_image_destroy( mask_image );
- gdk_gc_unref( mask_gc );
+ out[0] = in[0];
+ out[1] = in[1];
+ out[2] = in[2];
+ out[3] = *alpha;
}
}
- return TRUE;
+ return true;
}
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") );
- GdkImage *gdk_image = (GdkImage*) NULL;
- if (GetPixmap())
- {
- gdk_image = gdk_image_get( GetPixmap(),
- 0, 0,
- GetWidth(), GetHeight() );
- }
- else if (GetBitmap())
- {
- gdk_image = gdk_image_get( GetBitmap(),
- 0, 0,
- GetWidth(), GetHeight() );
- }
- else
- {
- wxFAIL_MSG( wxT("Ill-formed bitmap") );
- }
-
- wxCHECK_MSG( gdk_image, wxNullImage, wxT("couldn't create image") );
-
- image.Create( GetWidth(), GetHeight() );
- char unsigned *data = image.GetData();
+ const int w = GetWidth();
+ const int h = GetHeight();
+ wxImage image(w, h, false);
+ unsigned char *data = image.GetData();
- if (!data)
- {
- gdk_image_destroy( gdk_image );
- wxFAIL_MSG( wxT("couldn't create image") );
- return wxNullImage;
- }
+ wxCHECK_MSG(data != NULL, wxNullImage, wxT("couldn't create image") );
- GdkImage *gdk_image_mask = (GdkImage*) NULL;
- if (GetMask())
+ // prefer pixbuf if available, it will preserve alpha and should be quicker
+ if (HasPixbuf())
{
- gdk_image_mask = gdk_image_get( GetMask()->GetBitmap(),
- 0, 0,
- GetWidth(), GetHeight() );
+ GdkPixbuf *pixbuf = GetPixbuf();
+ unsigned char* alpha = NULL;
+ if (gdk_pixbuf_get_has_alpha(pixbuf))
+ {
+ image.SetAlpha();
+ alpha = image.GetAlpha();
+ }
+ const unsigned char* in = gdk_pixbuf_get_pixels(pixbuf);
+ unsigned char *out = data;
+ const int inc = 3 + int(alpha != NULL);
+ const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - inc * w;
- image.SetMaskColour( MASK_RED, MASK_GREEN, MASK_BLUE );
+ for (int y = 0; y < h; y++, in += rowpad)
+ {
+ for (int x = 0; x < w; x++, in += inc, out += 3)
+ {
+ out[0] = in[0];
+ out[1] = in[1];
+ out[2] = in[2];
+ if (alpha != NULL)
+ *alpha++ = in[3];
+ }
+ }
}
+ else
+ {
+ GdkPixmap* pixmap = GetPixmap();
+ GdkPixmap* pixmap_invert = NULL;
+ if (GetDepth() == 1)
+ {
+ // mono bitmaps are inverted, i.e. 0 is white
+ pixmap_invert = gdk_pixmap_new(pixmap, w, h, 1);
+ GdkGC* gc = gdk_gc_new(pixmap_invert);
+ gdk_gc_set_function(gc, GDK_COPY_INVERT);
+ gdk_draw_drawable(pixmap_invert, gc, pixmap, 0, 0, 0, 0, w, h);
+ g_object_unref(gc);
+ pixmap = pixmap_invert;
+ }
+ // create a pixbuf which shares data with the wxImage
+ GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(
+ data, GDK_COLORSPACE_RGB, false, 8, w, h, 3 * w, NULL, NULL);
- int bpp = -1;
- int red_shift_right = 0;
- int green_shift_right = 0;
- int blue_shift_right = 0;
- int red_shift_left = 0;
- int green_shift_left = 0;
- int blue_shift_left = 0;
- bool use_shift = FALSE;
+ gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h);
- if (GetPixmap())
- {
- GdkVisual *visual = gdk_window_get_visual( GetPixmap() );
- if (visual == NULL)
- visual = wxTheApp->GetGdkVisual();
-
- bpp = visual->depth;
- 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;
- green_shift_left = 8-visual->green_prec;
- blue_shift_right = visual->blue_shift;
- blue_shift_left = 8-visual->blue_prec;
-
- use_shift = (visual->type == GDK_VISUAL_TRUE_COLOR) || (visual->type == GDK_VISUAL_DIRECT_COLOR);
+ g_object_unref(pixbuf);
+ if (pixmap_invert != NULL)
+ g_object_unref(pixmap_invert);
}
- if (GetBitmap())
+ // convert mask, unless there is already alpha
+ if (GetMask() && !image.HasAlpha())
{
- bpp = 1;
- }
-
+ // we hard code the mask colour for now but we could also make an
+ // effort (and waste time) to choose a colour not present in the
+ // image already to avoid having to fudge the pixels below --
+ // whether it's worth to do it is unclear however
+ const int MASK_RED = 1;
+ const int MASK_GREEN = 2;
+ const int MASK_BLUE = 3;
+ const int MASK_BLUE_REPLACEMENT = 2;
- GdkColormap *cmap = gtk_widget_get_default_colormap();
+ image.SetMaskColour(MASK_RED, MASK_GREEN, MASK_BLUE);
+ GdkImage* image_mask = gdk_drawable_get_image(GetMask()->GetBitmap(), 0, 0, w, h);
- long pos = 0;
- for (int j = 0; j < GetHeight(); j++)
- {
- for (int i = 0; i < GetWidth(); i++)
+ for (int y = 0; y < h; y++)
{
- wxUint32 pixel = gdk_image_get_pixel( gdk_image, i, j );
- if (bpp == 1)
- {
- if (pixel == 0)
- {
- data[pos] = 0;
- data[pos+1] = 0;
- data[pos+2] = 0;
- }
- else
- {
- data[pos] = 255;
- data[pos+1] = 255;
- data[pos+2] = 255;
- }
- }
- else if (use_shift)
- {
- data[pos] = (pixel >> red_shift_right) << red_shift_left;
- data[pos+1] = (pixel >> green_shift_right) << green_shift_left;
- data[pos+2] = (pixel >> blue_shift_right) << blue_shift_left;
- }
- else if (cmap->colors)
- {
- data[pos] = cmap->colors[pixel].red >> 8;
- data[pos+1] = cmap->colors[pixel].green >> 8;
- data[pos+2] = cmap->colors[pixel].blue >> 8;
- }
- else
- {
- wxFAIL_MSG( wxT("Image conversion failed. Unknown visual type.") );
- }
-
- if (gdk_image_mask)
+ for (int x = 0; x < w; x++, data += 3)
{
- int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j );
- if (mask_pixel == 0)
+ if (gdk_image_get_pixel(image_mask, x, y) == 0)
{
- data[pos] = MASK_RED;
- data[pos+1] = MASK_GREEN;
- data[pos+2] = MASK_BLUE;
+ data[0] = MASK_RED;
+ data[1] = MASK_GREEN;
+ data[2] = MASK_BLUE;
}
- else if ( data[pos] == MASK_RED &&
- data[pos+1] == MASK_GREEN &&
- data[pos+2] == MASK_BLUE )
+ else if (data[0] == MASK_RED && data[1] == MASK_GREEN && data[2] == MASK_BLUE)
{
- data[pos+2] = MASK_BLUE_REPLACEMENT;
+ // we have to fudge the colour a bit to prevent
+ // this pixel from appearing transparent
+ data[2] = MASK_BLUE_REPLACEMENT;
}
}
-
- pos += 3;
}
+ g_object_unref(image_mask);
}
- gdk_image_destroy( gdk_image );
- if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
-
return image;
}
-wxBitmap::wxBitmap( const wxBitmap& bmp )
- : wxGDIObject()
-{
- Ref( bmp );
-}
-
-wxBitmap::wxBitmap( const wxString &filename, int type )
-{
- LoadFile( filename, type );
-}
-
-wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
-{
- 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;
-
- wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
- }
-}
-
-wxBitmap::~wxBitmap()
-{
-}
-
-wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
-{
- if ( m_refData != bmp.m_refData )
- Ref( bmp );
-
- return *this;
-}
-
-bool wxBitmap::operator == ( const wxBitmap& bmp ) const
-{
- return m_refData == bmp.m_refData;
-}
-
-bool wxBitmap::operator != ( const wxBitmap& bmp ) const
-{
- return m_refData != bmp.m_refData;
-}
-
-bool wxBitmap::Ok() const
-{
- return (m_refData != NULL) && (M_BMPDATA->m_bitmap || M_BMPDATA->m_pixmap);
-}
+#endif // wxUSE_IMAGE
int wxBitmap::GetHeight() const
{
{
wxCHECK_RET( Ok(), wxT("invalid bitmap") );
- if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
-
+ AllocExclusive();
+ delete M_BMPDATA->m_mask;
M_BMPDATA->m_mask = mask;
}
bool wxBitmap::CopyFromIcon(const wxIcon& icon)
{
*this = icon;
- return TRUE;
+ return Ok();
}
wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
{
- wxCHECK_MSG( Ok() &&
- (rect.x >= 0) && (rect.y >= 0) &&
- (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
- wxNullBitmap, wxT("invalid bitmap or bitmap region") );
+ wxBitmap ret;
- wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
- wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+ wxCHECK_MSG(Ok(), ret, wxT("invalid bitmap"));
+ wxCHECK_MSG(rect.x >= 0 && rect.y >= 0 &&
+ rect.x + rect.width <= M_BMPDATA->m_width &&
+ rect.y + rect.height <= M_BMPDATA->m_height,
+ ret, wxT("invalid bitmap region"));
- if (ret.GetPixmap())
+ if (HasPixbuf() || M_BMPDATA->m_bpp == 32)
{
- GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
- gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
- gdk_gc_destroy( gc );
+ GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
+ gdk_pixbuf_get_has_alpha(GetPixbuf()),
+ 8, rect.width, rect.height);
+ ret.SetPixbuf(pixbuf, M_BMPDATA->m_bpp);
+ gdk_pixbuf_copy_area(GetPixbuf(),
+ rect.x, rect.y, rect.width, rect.height,
+ pixbuf, 0, 0);
}
else
{
- GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
- GdkColor col;
- col.pixel = 0xFFFFFF;
- gdk_gc_set_foreground( gc, &col );
- col.pixel = 0;
- gdk_gc_set_background( gc, &col );
- gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
- gdk_gc_destroy( gc );
+ ret.Create(rect.width, rect.height, M_BMPDATA->m_bpp);
+ GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
+ gdk_draw_drawable( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
+ g_object_unref (gc);
}
-
- if (GetMask())
+ // make mask, unless there is already alpha
+ if (GetMask() && !HasAlpha())
{
wxMask *mask = new wxMask;
mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
GdkGC *gc = gdk_gc_new( mask->m_bitmap );
- GdkColor col;
- col.pixel = 0xFFFFFF;
- gdk_gc_set_foreground( gc, &col );
- col.pixel = 0;
- gdk_gc_set_background( gc, &col );
- gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height );
- gdk_gc_destroy( gc );
+ gdk_draw_drawable(mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, rect.x, rect.y, 0, 0, rect.width, rect.height);
+ g_object_unref (gc);
ret.SetMask( mask );
}
return ret;
}
-bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
+bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const
{
- wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
+ wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
+#if wxUSE_IMAGE
// Try to save the bitmap via wxImage handlers:
- {
- wxImage image = ConvertToImage();
- if (image.Ok()) return image.SaveFile( name, type );
- }
+ wxImage image = ConvertToImage();
+ return image.Ok() && image.SaveFile(name, type);
+#else // !wxUSE_IMAGE
+ wxUnusedVar(name);
+ wxUnusedVar(type);
- return FALSE;
+ return false;
+#endif // wxUSE_IMAGE
}
-bool wxBitmap::LoadFile( const wxString &name, int type )
+bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
{
UnRef();
- if (!wxFileExists(name))
- return FALSE;
-
- GdkVisual *visual = wxTheApp->GetGdkVisual();
-
if (type == wxBITMAP_TYPE_XPM)
{
- m_refData = new wxBitmapRefData();
-
GdkBitmap *mask = (GdkBitmap*) NULL;
-
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm
- (
- wxGetRootWindow()->window,
- &mask,
- NULL,
- name.fn_str()
- );
+ SetPixmap(gdk_pixmap_create_from_xpm(wxGetRootWindow()->window, &mask, NULL, name.fn_str()));
if (mask)
{
- M_BMPDATA->m_mask = new wxMask();
- M_BMPDATA->m_mask->m_bitmap = mask;
+ M_BMPDATA->m_mask = new wxMask;
+ M_BMPDATA->m_mask->m_bitmap = mask;
}
-
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
-
- M_BMPDATA->m_bpp = visual->depth;
}
+#if wxUSE_IMAGE
else // try if wxImage can load it
{
wxImage image;
- if ( !image.LoadFile( name, type ) || !image.Ok() )
- return FALSE;
-
- *this = wxBitmap(image);
+ if (image.LoadFile(name, type) && image.Ok())
+ CreateFromImage(image, -1);
}
+#endif // wxUSE_IMAGE
- return TRUE;
+ return Ok();
}
+#if wxUSE_PALETTE
wxPalette *wxBitmap::GetPalette() const
{
- if (!Ok())
- return (wxPalette *) NULL;
+ wxCHECK_MSG(Ok(), NULL, wxT("invalid bitmap"));
return M_BMPDATA->m_palette;
}
-void wxBitmap::SetHeight( int height )
+void wxBitmap::SetPalette(const wxPalette& WXUNUSED(palette))
{
- if (!m_refData)
- m_refData = new wxBitmapRefData();
+ // TODO
+}
+#endif // wxUSE_PALETTE
+void wxBitmap::SetHeight( int height )
+{
+ AllocExclusive();
M_BMPDATA->m_height = height;
}
void wxBitmap::SetWidth( int width )
{
- if (!m_refData)
- m_refData = new wxBitmapRefData();
-
+ AllocExclusive();
M_BMPDATA->m_width = width;
}
void wxBitmap::SetDepth( int depth )
{
- if (!m_refData)
- m_refData = new wxBitmapRefData();
-
+ AllocExclusive();
M_BMPDATA->m_bpp = depth;
}
void wxBitmap::SetPixmap( GdkPixmap *pixmap )
{
if (!m_refData)
- m_refData = new wxBitmapRefData();
+ m_refData = new wxBitmapRefData;
+ // AllocExclusive should not be needed for this internal function
+ wxASSERT(m_refData->GetRefCount() == 1);
+ wxASSERT(M_BMPDATA->m_pixmap == NULL);
M_BMPDATA->m_pixmap = pixmap;
+ gdk_drawable_get_size(pixmap, &M_BMPDATA->m_width, &M_BMPDATA->m_height);
+ M_BMPDATA->m_bpp = gdk_drawable_get_depth(pixmap);
+ PurgeOtherRepresentations(Pixmap);
+}
+
+GdkPixmap *wxBitmap::GetPixmap() const
+{
+ wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
+
+ // create the pixmap on the fly if we use Pixbuf representation:
+ if (M_BMPDATA->m_pixmap == NULL)
+ {
+ GdkPixmap** pmask = NULL;
+ if (gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf))
+ {
+ // make new mask from alpha
+ delete M_BMPDATA->m_mask;
+ M_BMPDATA->m_mask = new wxMask;
+ pmask = &M_BMPDATA->m_mask->m_bitmap;
+ }
+ gdk_pixbuf_render_pixmap_and_mask(M_BMPDATA->m_pixbuf,
+ &M_BMPDATA->m_pixmap,
+ pmask,
+ 0x80 /* alpha threshold */);
+ }
+
+ return M_BMPDATA->m_pixmap;
+}
+
+bool wxBitmap::HasPixmap() const
+{
+ wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
+
+ return M_BMPDATA->m_pixmap != NULL;
+}
+
+GdkPixbuf *wxBitmap::GetPixbuf() const
+{
+ wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
+
+ if (M_BMPDATA->m_pixbuf == NULL)
+ {
+ int width = GetWidth();
+ int height = GetHeight();
+
+ GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
+ GetMask() != NULL,
+ 8, width, height);
+ M_BMPDATA->m_pixbuf = pixbuf;
+ gdk_pixbuf_get_from_drawable(pixbuf, M_BMPDATA->m_pixmap, NULL,
+ 0, 0, 0, 0, width, height);
+
+ // apply the mask to created pixbuf:
+ if (M_BMPDATA->m_pixbuf && M_BMPDATA->m_mask)
+ {
+ GdkPixbuf *pmask =
+ gdk_pixbuf_get_from_drawable(NULL,
+ M_BMPDATA->m_mask->GetBitmap(),
+ NULL,
+ 0, 0, 0, 0, width, height);
+ if (pmask)
+ {
+ guchar *bmp = gdk_pixbuf_get_pixels(pixbuf);
+ guchar *mask = gdk_pixbuf_get_pixels(pmask);
+ int bmprowinc = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width;
+ int maskrowinc = gdk_pixbuf_get_rowstride(pmask) - 3 * width;
+
+ for (int y = 0; y < height;
+ y++, bmp += bmprowinc, mask += maskrowinc)
+ {
+ for (int x = 0; x < width; x++, bmp += 4, mask += 3)
+ {
+ if (mask[0] == 0 /*black pixel*/)
+ bmp[3] = 0;
+ }
+ }
+
+ g_object_unref (pmask);
+ }
+ }
+ }
+
+ return M_BMPDATA->m_pixbuf;
+}
+
+bool wxBitmap::HasPixbuf() const
+{
+ wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
+
+ return M_BMPDATA->m_pixbuf != NULL;
}
-void wxBitmap::SetBitmap( GdkPixmap *bitmap )
+void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf, int depth)
{
if (!m_refData)
- m_refData = new wxBitmapRefData();
+ m_refData = new wxBitmapRefData;
- M_BMPDATA->m_bitmap = bitmap;
+ // AllocExclusive should not be needed for this internal function
+ wxASSERT(m_refData->GetRefCount() == 1);
+ wxASSERT(M_BMPDATA->m_pixbuf == NULL);
+ M_BMPDATA->m_pixbuf = pixbuf;
+ M_BMPDATA->m_width = gdk_pixbuf_get_width(pixbuf);
+ M_BMPDATA->m_height = gdk_pixbuf_get_height(pixbuf);
+ // if depth specified
+ if (depth != 0)
+ M_BMPDATA->m_bpp = depth;
+ else if (M_BMPDATA->m_bpp == 0)
+ // use something reasonable
+ M_BMPDATA->m_bpp = wxTheApp->GetGdkVisual()->depth;
+ PurgeOtherRepresentations(Pixbuf);
}
-GdkPixmap *wxBitmap::GetPixmap() const
+void wxBitmap::PurgeOtherRepresentations(wxBitmap::Representation keep)
{
- wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
+ if (keep == Pixmap && HasPixbuf())
+ {
+ g_object_unref (M_BMPDATA->m_pixbuf);
+ M_BMPDATA->m_pixbuf = NULL;
+ }
+ if (keep == Pixbuf && HasPixmap())
+ {
+ g_object_unref (M_BMPDATA->m_pixmap);
+ M_BMPDATA->m_pixmap = NULL;
+ }
+}
- return M_BMPDATA->m_pixmap;
+void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
+{
+ void* bits = NULL;
+ GdkPixbuf *pixbuf = GetPixbuf();
+ const bool hasAlpha = HasAlpha();
+ // allow access if bpp is valid and matches existence of alpha
+ if (pixbuf != NULL && (
+ bpp == 24 && !hasAlpha ||
+ bpp == 32 && hasAlpha))
+ {
+ data.m_height = gdk_pixbuf_get_height( pixbuf );
+ data.m_width = gdk_pixbuf_get_width( pixbuf );
+ data.m_stride = gdk_pixbuf_get_rowstride( pixbuf );
+ bits = gdk_pixbuf_get_pixels(pixbuf);
+ }
+ return bits;
}
-GdkBitmap *wxBitmap::GetBitmap() const
+void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data))
{
- wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
+}
+
+bool wxBitmap::HasAlpha() const
+{
+ return m_refData != NULL && M_BMPDATA->m_pixbuf != NULL &&
+ gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf);
+}
+
+wxGDIRefData* wxBitmap::CreateGDIRefData() const
+{
+ return new wxBitmapRefData;
+}
- return M_BMPDATA->m_bitmap;
+wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const
+{
+ const wxBitmapRefData* oldRef = wx_static_cast(const wxBitmapRefData*, data);
+ wxBitmapRefData* newRef = new wxBitmapRefData;
+ newRef->m_width = oldRef->m_width;
+ newRef->m_height = oldRef->m_height;
+ newRef->m_bpp = oldRef->m_bpp;
+ if (oldRef->m_pixmap != NULL)
+ {
+ newRef->m_pixmap = gdk_pixmap_new(
+ oldRef->m_pixmap, oldRef->m_width, oldRef->m_height,
+ // use pixmap depth, m_bpp may not match
+ gdk_drawable_get_depth(oldRef->m_pixmap));
+ GdkGC* gc = gdk_gc_new(newRef->m_pixmap);
+ gdk_draw_drawable(
+ newRef->m_pixmap, gc, oldRef->m_pixmap, 0, 0, 0, 0, -1, -1);
+ g_object_unref(gc);
+ }
+ if (oldRef->m_pixbuf != NULL)
+ {
+ newRef->m_pixbuf = gdk_pixbuf_copy(oldRef->m_pixbuf);
+ }
+ if (oldRef->m_mask != NULL)
+ {
+ newRef->m_mask = new wxMask;
+ newRef->m_mask->m_bitmap = gdk_pixmap_new(
+ oldRef->m_mask->m_bitmap, oldRef->m_width, oldRef->m_height, 1);
+ GdkGC* gc = gdk_gc_new(newRef->m_mask->m_bitmap);
+ gdk_draw_drawable(newRef->m_mask->m_bitmap,
+ gc, oldRef->m_mask->m_bitmap, 0, 0, 0, 0, -1, -1);
+ g_object_unref(gc);
+ }
+#if wxUSE_PALETTE
+ // implement this if SetPalette is ever implemented
+ wxASSERT(oldRef->m_palette == NULL);
+#endif
+
+ return newRef;
+}
+
+//-----------------------------------------------------------------------------
+// wxBitmapHandler
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
+
+/* static */ void wxBitmap::InitStandardHandlers()
+{
+ // TODO: Insert handler based on GdkPixbufs handler later
}
projects / wxWidgets.git / blobdiff