#include "wx/icon.h"
#include "wx/math.h"
#include "wx/image.h"
+ #include "wx/colour.h"
#endif
#include "wx/rawbmp.h"
const int w = bitmap.GetWidth();
const int h = bitmap.GetHeight();
- m_bitmap = gdk_pixmap_new(wxGetRootWindow()->window, w, h, 1);
- GdkGC *gc = gdk_gc_new( m_bitmap );
-
- GdkColor color;
- color.pixel = 1;
- gdk_gc_set_foreground( gc, &color );
- gdk_draw_rectangle(m_bitmap, gc, true, 0, 0, w, h);
- unsigned char red = colour.Red();
- unsigned char green = colour.Green();
- unsigned char blue = colour.Blue();
- GdkImage* image = NULL;
- wxByte* data = NULL;
- guint32 mask_pixel = 1;
- int rowpadding = 0;
- int data_inc = 0;
+ // create mask as XBM format bitmap
+ // 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())
{
+ const wxByte r_mask = colour.Red();
+ const wxByte g_mask = colour.Green();
+ const wxByte b_mask = colour.Blue();
GdkPixbuf* pixbuf = bitmap.GetPixbuf();
- data = gdk_pixbuf_get_pixels(pixbuf);
- data_inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0);
- rowpadding = gdk_pixbuf_get_rowstride(pixbuf) - data_inc * w;
+ 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;
+ }
}
else
{
- image = gdk_drawable_get_image(bitmap.GetPixmap(), 0, 0, w, h);
+ GdkImage* image = gdk_drawable_get_image(bitmap.GetPixmap(), 0, 0, w, h);
GdkColormap* colormap = gdk_image_get_colormap(image);
- if (colormap != NULL)
+ 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
{
wxColor c(colour);
c.CalcPixel(colormap);
mask_pixel = c.GetPixel();
}
- }
-
- color.pixel = 0;
- gdk_gc_set_foreground( gc, &color );
-
- for (int y = 0; y < h; y++)
- {
- int start_x = -1;
- int x;
- for (x = 0; x < w; x++)
+ for (int y = 0; y < h; y++)
{
- bool isMask;
- if (image != NULL)
- isMask = gdk_image_get_pixel(image, x, y) == mask_pixel;
- else
- {
- isMask = data[0] == red && data[1] == green && data[2] == blue;
- data += data_inc;
- }
- if (isMask)
- {
- if (start_x == -1)
- start_x = x;
- }
- else
- {
- if (start_x != -1)
- {
- gdk_draw_line(m_bitmap, gc, start_x, y, x - 1, y);
- start_x = -1;
- }
- }
+ 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;
}
- if (start_x != -1)
- gdk_draw_line(m_bitmap, gc, start_x, y, x, y);
- data += rowpadding;
- }
- if (image != NULL)
g_object_unref(image);
- g_object_unref (gc);
-
+ }
+ m_bitmap = gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h);
+ delete[] out;
return true;
}
{
public:
wxBitmapRefData();
- ~wxBitmapRefData();
+ virtual ~wxBitmapRefData();
GdkPixmap *m_pixmap;
GdkPixbuf *m_pixbuf;
{
bmp.SetDepth(GetDepth());
bmp.SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB,
- gdk_pixbuf_get_has_alpha(GetPixbuf()),
+ true, //gdk_pixbuf_get_has_alpha(GetPixbuf()),
8, width, height));
gdk_pixbuf_scale(GetPixbuf(), bmp.GetPixbuf(),
0, 0, width, height,
return false;
if (depth == 1)
- return CreateFromImageAsBitmap(image);
+ return CreateFromImageAsPixmap(image, depth);
if (image.HasAlpha())
return CreateFromImageAsPixbuf(image);
- return CreateFromImageAsPixmap(image);
+ return CreateFromImageAsPixmap(image, depth);
}
-// conversion to mono bitmap:
-bool wxBitmap::CreateFromImageAsBitmap(const wxImage& img)
+bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth)
{
- // convert alpha channel to mask, if it is present:
- wxImage image(img);
- image.ConvertAlphaToMask();
-
- int width = image.GetWidth();
- int height = image.GetHeight();
-
- SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
-
- // Create picture image
-
- GdkGC* data_gc = gdk_gc_new(M_BMPDATA->m_pixmap);
- GdkColor color;
- color.pixel = 1;
- gdk_gc_set_foreground(data_gc, &color);
- gdk_draw_rectangle(M_BMPDATA->m_pixmap, data_gc, true, 0, 0, width, height);
- GdkImage* data_image = gdk_drawable_get_image(M_BMPDATA->m_pixmap, 0, 0, width, height);
-
- // Create mask image
-
- GdkImage *mask_image = (GdkImage*) NULL;
- GdkGC* mask_gc = NULL;
-
- if (image.HasMask())
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ if (depth == 1)
{
- wxMask* mask = new wxMask;
- mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
- mask_gc = gdk_gc_new(mask->m_bitmap);
- gdk_gc_set_foreground(mask_gc, &color);
- gdk_draw_rectangle(mask->m_bitmap, mask_gc, true, 0, 0, width, height);
- mask_image = gdk_drawable_get_image(mask->m_bitmap, 0, 0, width, height);
-
- SetMask( mask );
+ // create XBM format bitmap
+
+ // 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++)
+ {
+ 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;
+ }
+ else
+ {
+ 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);
}
- 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++)
+ const wxByte* alpha = image.GetAlpha();
+ if (alpha != NULL || image.HasMask())
{
- for (int x = 0; x < width; x++)
+ // create mask as XBM format bitmap
+
+ 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)
{
- int r = data[index];
- index++;
- int g = data[index];
- index++;
- int b = data[index];
- index++;
-
- if (mask_image != NULL)
+ for (int y = 0; y < h; y++)
{
- if ((r == r_mask) && (b == b_mask) && (g == g_mask))
- gdk_image_put_pixel( mask_image, x, y, 0 );
+ 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;
}
-
- if ((r == 255) && (b == 255) && (g == 255))
- gdk_image_put_pixel( data_image, x, y, 0 );
-
- } // for
- } // for
-
- // Blit picture
-
- gdk_draw_image( GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height );
-
- g_object_unref (data_image);
- g_object_unref (data_gc);
-
- // Blit mask
-
- if (mask_image != NULL)
- {
- gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
-
- g_object_unref (mask_image);
- g_object_unref (mask_gc);
- }
-
- return true;
-}
-
-// conversion to colour bitmap:
-bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image)
-{
- // alpha is handled by CreateFromImageAsPixbuf
- wxASSERT(!image.HasAlpha());
-
- int width = image.GetWidth();
- int height = image.GetHeight();
-
- SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
-
- GdkGC *gc = gdk_gc_new( GetPixmap() );
-
- gdk_draw_rgb_image( GetPixmap(),
- gc,
- 0, 0,
- width, height,
- GDK_RGB_DITHER_NONE,
- image.GetData(),
- width*3 );
-
- g_object_unref (gc);
-
- // Create mask image
-
- if (!image.HasMask())
- return true;
-
- wxMask* mask = new wxMask;
- mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 );
- GdkGC* mask_gc = gdk_gc_new(mask->m_bitmap);
- GdkColor color;
- color.pixel = 1;
- gdk_gc_set_foreground(mask_gc, &color);
- gdk_draw_rectangle(mask->m_bitmap, mask_gc, true, 0, 0, width, height);
- GdkImage* mask_image = gdk_drawable_get_image(mask->m_bitmap, 0, 0, width, height);
-
- SetMask( mask );
-
- 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++)
+ }
+ else
{
- int r = data[index];
- index++;
- int g = data[index];
- index++;
- int b = data[index];
- index++;
-
- if ((r == r_mask) && (b == b_mask) && (g == g_mask))
- gdk_image_put_pixel( mask_image, x, y, 0 );
- } // for
- } // for
-
- // Blit mask
-
- gdk_draw_image( GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height );
-
- g_object_unref (mask_image);
- g_object_unref (mask_gc);
-
+ 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++)
+ {
+ 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;
}
int height = image.GetHeight();
GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
- image.HasAlpha(),
+ true, //image.HasAlpha(),
8 /* bits per sample */,
width, height);
if (!pixbuf)
wxASSERT( gdk_pixbuf_get_width(pixbuf) == width );
wxASSERT( gdk_pixbuf_get_height(pixbuf) == height );
- SetDepth(wxTheApp->GetGdkVisual()->depth);
+ SetDepth(32);
SetPixbuf(pixbuf);
// Copy the data:
GdkPixmap* pixmap_invert = NULL;
if (GetDepth() == 1)
{
- // mono bitmaps are inverted
+ // 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);
if (HasPixbuf())
{
GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
- gdk_pixbuf_get_has_alpha(GetPixbuf()),
+ true, //gdk_pixbuf_get_has_alpha(GetPixbuf()),
8, rect.width, rect.height);
ret.SetPixbuf(pixbuf);
ret.SetDepth(M_BMPDATA->m_bpp);
int width = GetWidth();
int height = GetHeight();
+ // always create the alpha channel so raw bitmap access will work
+ // correctly
GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
- GetMask() != NULL,
+ true, // GetMask() != NULL,
8, width, height);
M_BMPDATA->m_pixbuf =
gdk_pixbuf_get_from_drawable(pixbuf, M_BMPDATA->m_pixmap, NULL,
if (!pixbuf)
return NULL;
+ if (!gdk_pixbuf_get_has_alpha( pixbuf ))
+ return NULL;
+
#if 0
if (gdk_pixbuf_get_has_alpha( pixbuf ))
- wxPrintf( wxT("Has alpha\n") );
+ wxPrintf( wxT("Has alpha, %d channels\n"), gdk_pixbuf_get_n_channels(pixbuf) );
else
- wxPrintf( wxT("No alpha.\n") );
+ wxPrintf( wxT("No alpha, %d channels.\n"), gdk_pixbuf_get_n_channels(pixbuf) );
#endif
data.m_height = gdk_pixbuf_get_height( pixbuf );
projects / wxWidgets.git / blobdiff