/////////////////////////////////////////////////////////////////////////////
-// Name: bitmap.cpp
+// Name: src/gtk/bitmap.cpp
// Purpose:
// Author: Robert Roebling
// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "bitmap.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
#include "wx/bitmap.h"
-#include "wx/icon.h"
-#include "wx/filefn.h"
-#include "wx/image.h"
-#include "gdk/gdk.h"
-#include "gdk/gdkprivate.h"
-#include "gdk/gdkx.h"
+#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 "wx/rawbmp.h"
+
+#include <gtk/gtk.h>
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+extern GtkWidget *wxGetRootWindow();
//-----------------------------------------------------------------------------
// wxMask
m_bitmap = (GdkBitmap *) NULL;
}
-wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) )
+wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
{
+ m_bitmap = (GdkBitmap *) NULL;
+ Create( bitmap, colour );
}
-wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) )
+#if wxUSE_PALETTE
+wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
{
+ m_bitmap = (GdkBitmap *) NULL;
+ Create( bitmap, paletteIndex );
}
+#endif // wxUSE_PALETTE
-wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) )
+wxMask::wxMask( const wxBitmap& bitmap )
{
+ m_bitmap = (GdkBitmap *) NULL;
+ Create( bitmap );
}
wxMask::~wxMask()
{
- if (m_bitmap) gdk_bitmap_unref( m_bitmap );
+ if (m_bitmap)
+ g_object_unref (m_bitmap);
+}
+
+bool wxMask::Create( const wxBitmap& bitmap,
+ const wxColour& colour )
+{
+ if (m_bitmap)
+ {
+ g_object_unref (m_bitmap);
+ m_bitmap = (GdkBitmap*) NULL;
+ }
+
+ const int w = bitmap.GetWidth();
+ const int h = bitmap.GetHeight();
+
+ // 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();
+ 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
+ {
+ 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
+ {
+ wxColor c(colour);
+ c.CalcPixel(colormap);
+ mask_pixel = c.GetPixel();
+ }
+ 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);
+ }
+ m_bitmap = gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h);
+ delete[] out;
+ return true;
}
-GdkBitmap *wxMask::GetBitmap(void) const
+#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") );
+
+ 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)
+ {
+ g_object_unref (m_bitmap);
+ m_bitmap = (GdkBitmap*) NULL;
+ }
+
+ if (!bitmap.Ok()) return false;
+
+ 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;
+
+ 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);
+
+ return true;
+}
+
+GdkBitmap *wxMask::GetBitmap() const
{
return m_bitmap;
}
// wxBitmap
//-----------------------------------------------------------------------------
-class wxBitmapRefData: public wxObjectRefData
+class wxBitmapRefData: public wxGDIRefData
{
public:
- wxBitmapRefData(void);
- ~wxBitmapRefData(void);
-
- GdkPixmap *m_pixmap;
- GdkBitmap *m_bitmap;
- wxMask *m_mask;
- int m_width;
- int m_height;
- int m_bpp;
- wxPalette *m_palette;
+ wxBitmapRefData();
+ virtual ~wxBitmapRefData();
+
+ virtual bool IsOk() const { return m_pixmap || m_pixbuf; }
+
+ GdkPixmap *m_pixmap;
+ 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 );
- if (m_mask) delete m_mask;
- if (m_palette) delete m_palette;
+ if (m_pixmap)
+ 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)
{
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ Create(width, height, depth);
}
-wxBitmap::wxBitmap( int width, int height, int depth )
+wxBitmap::wxBitmap(const wxString &filename, wxBitmapType type)
{
- wxCHECK_RET( (width > 0) && (height > 0), _T("invalid bitmap size") )
-
- GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
- if (depth == -1) depth = gdk_window_get_visual( parent )->depth;
-
- wxCHECK_RET( (depth == gdk_window_get_visual( parent )->depth) ||
- (depth == 1), _T("invalid bitmap depth") )
+ LoadFile(filename, type);
+}
- m_refData = new wxBitmapRefData();
- M_BMPDATA->m_mask = (wxMask *) NULL;
- M_BMPDATA->m_width = width;
- M_BMPDATA->m_height = height;
- if (depth == 1)
+wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
+{
+ wxASSERT(depth == 1);
+ if (width > 0 && height > 0 && depth == 1)
{
- M_BMPDATA->m_bitmap = gdk_pixmap_new( parent, width, height, 1 );
- M_BMPDATA->m_bpp = 1;
+ SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, bits, width, height));
+
+ wxASSERT_MSG( M_BMPDATA->m_pixmap, wxT("couldn't create bitmap") );
}
- else
+}
+
+wxBitmap::wxBitmap(const char* const* bits)
+{
+ wxCHECK2_MSG(bits != NULL, return, wxT("invalid bitmap data"));
+
+ GdkBitmap* mask = NULL;
+ SetPixmap(gdk_pixmap_create_from_xpm_d(wxGetRootWindow()->window, &mask, NULL, wx_const_cast(char**, bits)));
+
+ if (M_BMPDATA->m_pixmap != NULL && mask != NULL)
{
- M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
- M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
+ M_BMPDATA->m_mask = new wxMask;
+ M_BMPDATA->m_mask->m_bitmap = mask;
}
-
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}
-wxBitmap::wxBitmap( const char **bits )
+wxBitmap::~wxBitmap()
{
- wxCHECK_RET( bits != NULL, _T("invalid bitmap data") )
-
- m_refData = new wxBitmapRefData();
+}
- GdkBitmap *mask = (GdkBitmap*) NULL;
- GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
+bool wxBitmap::Create( int width, int height, int depth )
+{
+ UnRef();
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
+ if ( width <= 0 || height <= 0 )
+ {
+ return false;
+ }
- if (mask)
+ if (depth == 32)
{
- M_BMPDATA->m_mask = new wxMask();
- M_BMPDATA->m_mask->m_bitmap = mask;
+ SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32);
}
+ else
+ {
+ if (depth != 1)
+ {
+ const GdkVisual* visual = wxTheApp->GetGdkVisual();
+ if (depth == -1)
+ depth = visual->depth;
+
+ wxCHECK_MSG(depth == visual->depth, false, wxT("invalid bitmap depth"));
+ }
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
+ SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth));
+ }
- M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ?
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ return Ok();
}
-wxBitmap::wxBitmap( char **bits )
+wxBitmap wxBitmap::Rescale(int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy) const
{
- wxCHECK_RET( bits != NULL, _T("invalid bitmap data") )
+ wxBitmap bmp;
+
+ wxCHECK_MSG(Ok(), bmp, wxT("invalid bitmap"));
+
+ int width = wxMax(newx, 1);
+ int height = wxMax(newy, 1);
+ width = wxMin(width, clipwidth);
+ height = wxMin(height, clipheight);
- m_refData = new wxBitmapRefData();
+ const double scale_x = double(newx) / M_BMPDATA->m_width;
+ const double scale_y = double(newy) / M_BMPDATA->m_height;
- GdkBitmap *mask = (GdkBitmap*) NULL;
- GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
+ // Converting to pixbuf, scaling with gdk_pixbuf_scale, and converting
+ // back, is faster than scaling pixmap ourselves.
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
+ // 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);
+
+ // new pixbuf for scaled wxBitmap
+ GdkPixbuf* pixbuf_scaled = gdk_pixbuf_new(
+ GDK_COLORSPACE_RGB, gdk_pixbuf_get_has_alpha(pixbuf), 8, width, height);
- wxCHECK_RET( M_BMPDATA->m_pixmap, _T("couldn't create pixmap") );
+ // 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 (mask)
+ g_object_unref(pixbuf);
+ bmp.SetPixbuf(pixbuf_scaled, M_BMPDATA->m_bpp);
+
+ if (M_BMPDATA->m_mask)
{
- M_BMPDATA->m_mask = new wxMask();
- M_BMPDATA->m_mask->m_bitmap = 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);
+
+ pixbuf_scaled = gdk_pixbuf_new(
+ GDK_COLORSPACE_RGB, false, 8, width, height);
- gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
+ gdk_pixbuf_scale(
+ pixbuf, pixbuf_scaled,
+ 0, 0, width, height, -clipx, -clipy, scale_x, scale_y,
+ GDK_INTERP_NEAREST);
- M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ?
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ g_object_unref(pixbuf);
+
+ // use existing functionality to create mask from scaled pixbuf
+ wxBitmap maskbmp;
+ maskbmp.SetPixbuf(pixbuf_scaled);
+ bmp.SetMask(new wxMask(maskbmp, *wxBLACK));
+ }
+ return bmp;
}
-wxBitmap::wxBitmap( const wxBitmap& bmp )
+#if wxUSE_IMAGE
+
+bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
{
- Ref( bmp );
+ UnRef();
+
+ wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
+ wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ if (image.GetWidth() <= 0 || image.GetHeight() <= 0)
+ return false;
+
+ // create pixbuf if image has alpha and requested depth is compatible
+ if (image.HasAlpha() && (depth == -1 || depth == 32))
+ return CreateFromImageAsPixbuf(image);
+
+ // otherwise create pixmap, if alpha is present it will be converted to mask
+ return CreateFromImageAsPixmap(image, depth);
}
-wxBitmap::wxBitmap( const wxString &filename, int type )
+bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth)
{
- LoadFile( filename, type );
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ if (depth == 1)
+ {
+ // 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);
+ }
+
+ const wxByte* alpha = image.GetAlpha();
+ if (alpha != NULL || image.HasMask())
+ {
+ // create mask as XBM format bitmap
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
+ 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)
+ {
+ for (int y = 0; y < h; y++)
+ {
+ 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;
+ }
+ }
+ else
+ {
+ 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;
}
-wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
+bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
{
- m_refData = new wxBitmapRefData();
+ wxASSERT(image.HasAlpha());
- M_BMPDATA->m_mask = (wxMask *) NULL;
- M_BMPDATA->m_bitmap =
- gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
- M_BMPDATA->m_width = width;
- M_BMPDATA->m_height = height;
- M_BMPDATA->m_bpp = 1;
+ int width = image.GetWidth();
+ int height = image.GetHeight();
- wxCHECK_RET( M_BMPDATA->m_bitmap, _T("couldn't create bitmap") );
+ Create(width, height, 32);
+ GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf;
+ if (!pixbuf)
+ return false;
- if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
-}
+ // Copy the data:
+ const unsigned char* in = image.GetData();
+ unsigned char *out = gdk_pixbuf_get_pixels(pixbuf);
+ unsigned char *alpha = image.GetAlpha();
-wxBitmap::~wxBitmap()
-{
- if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
-}
+ int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - 4 * width;
-wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
-{
- if (*this == bmp) return (*this);
- Ref( bmp );
- return *this;
-}
+ for (int y = 0; y < height; y++, out += rowpad)
+ {
+ for (int x = 0; x < width; x++, alpha++, out += 4, in += 3)
+ {
+ out[0] = in[0];
+ out[1] = in[1];
+ out[2] = in[2];
+ out[3] = *alpha;
+ }
+ }
-bool wxBitmap::operator == ( const wxBitmap& bmp )
-{
- return m_refData == bmp.m_refData;
+ return true;
}
-bool wxBitmap::operator != ( const wxBitmap& bmp )
+wxImage wxBitmap::ConvertToImage() const
{
- return m_refData != bmp.m_refData;
-}
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
-bool wxBitmap::Ok(void) const
-{
- return (m_refData != NULL);
+ const int w = GetWidth();
+ const int h = GetHeight();
+ wxImage image(w, h, false);
+ unsigned char *data = image.GetData();
+
+ wxCHECK_MSG(data != NULL, wxNullImage, wxT("couldn't create image") );
+
+ // prefer pixbuf if available, it will preserve alpha and should be quicker
+ if (HasPixbuf())
+ {
+ 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;
+
+ 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);
+
+ gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h);
+
+ g_object_unref(pixbuf);
+ if (pixmap_invert != NULL)
+ g_object_unref(pixmap_invert);
+ }
+ // convert mask, unless there is already alpha
+ if (GetMask() && !image.HasAlpha())
+ {
+ // 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;
+
+ image.SetMaskColour(MASK_RED, MASK_GREEN, MASK_BLUE);
+ GdkImage* image_mask = gdk_drawable_get_image(GetMask()->GetBitmap(), 0, 0, w, h);
+
+ for (int y = 0; y < h; y++)
+ {
+ for (int x = 0; x < w; x++, data += 3)
+ {
+ if (gdk_image_get_pixel(image_mask, x, y) == 0)
+ {
+ data[0] = MASK_RED;
+ data[1] = MASK_GREEN;
+ data[2] = MASK_BLUE;
+ }
+ else if (data[0] == MASK_RED && data[1] == MASK_GREEN && data[2] == MASK_BLUE)
+ {
+ // we have to fudge the colour a bit to prevent
+ // this pixel from appearing transparent
+ data[2] = MASK_BLUE_REPLACEMENT;
+ }
+ }
+ }
+ g_object_unref(image_mask);
+ }
+
+ return image;
}
-int wxBitmap::GetHeight(void) const
+#endif // wxUSE_IMAGE
+
+int wxBitmap::GetHeight() const
{
- wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
+ wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_height;
}
-int wxBitmap::GetWidth(void) const
+int wxBitmap::GetWidth() const
{
- wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
+ wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_width;
}
-int wxBitmap::GetDepth(void) const
+int wxBitmap::GetDepth() const
{
- wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
+ wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BMPDATA->m_bpp;
}
-wxMask *wxBitmap::GetMask(void) const
+wxMask *wxBitmap::GetMask() const
{
- wxCHECK_MSG( Ok(), (wxMask *) NULL, _T("invalid bitmap") );
+ wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
return M_BMPDATA->m_mask;
}
void wxBitmap::SetMask( wxMask *mask )
{
- wxCHECK_RET( Ok(), _T("invalid bitmap") );
-
- if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
+ wxCHECK_RET( Ok(), wxT("invalid bitmap") );
+ AllocExclusive();
+ delete M_BMPDATA->m_mask;
M_BMPDATA->m_mask = mask;
}
-bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
+bool wxBitmap::CopyFromIcon(const wxIcon& icon)
{
- wxCHECK_MSG( Ok(), FALSE, _T("invalid bitmap") );
+ *this = icon;
+ return Ok();
+}
+
+wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
+{
+ wxBitmap ret;
+
+ 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 (type == wxBITMAP_TYPE_PNG)
+ if (HasPixbuf() || M_BMPDATA->m_bpp == 32)
{
- wxImage image( *this );
- if (image.Ok()) return image.SaveFile( name, type );
+ 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
+ {
+ 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);
+ }
+ // 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 );
- return FALSE;
+ GdkGC *gc = gdk_gc_new( mask->m_bitmap );
+ 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::LoadFile( const wxString &name, int type )
+bool wxBitmap::SaveFile( const wxString &name, wxBitmapType type, const wxPalette *WXUNUSED(palette) ) const
{
- UnRef();
+ wxCHECK_MSG( Ok(), false, wxT("invalid bitmap") );
- if (!wxFileExists(name)) return FALSE;
+#if wxUSE_IMAGE
+ // Try to save the bitmap via wxImage handlers:
+ wxImage image = ConvertToImage();
+ return image.Ok() && image.SaveFile(name, type);
+#else // !wxUSE_IMAGE
+ wxUnusedVar(name);
+ wxUnusedVar(type);
+
+ return false;
+#endif // wxUSE_IMAGE
+}
+
+bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
+{
+ UnRef();
if (type == wxBITMAP_TYPE_XPM)
{
- m_refData = new wxBitmapRefData();
-
GdkBitmap *mask = (GdkBitmap*) NULL;
- GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
-
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &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 = gdk_window_get_visual( parent )->depth;
- }
- else if (type == wxBITMAP_TYPE_PNG)
- {
- wxImage image;
- image.LoadFile( name, type );
- if (image.Ok()) *this = image.ConvertToBitmap();
}
- else if (type == wxBITMAP_TYPE_BMP)
+#if wxUSE_IMAGE
+ else // try if wxImage can load it
{
wxImage image;
- image.LoadFile( name, type );
- if (image.Ok()) *this = image.ConvertToBitmap();
+ if (image.LoadFile(name, type) && image.Ok())
+ CreateFromImage(image, -1);
}
- else
- return FALSE;
+#endif // wxUSE_IMAGE
- return TRUE;
+ return Ok();
}
-wxPalette *wxBitmap::GetPalette(void) const
+#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();
+ if (!m_refData)
+ 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(void) const
+GdkPixmap *wxBitmap::GetPixmap() const
{
- wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, _T("invalid bitmap") );
+ 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;
}
-GdkBitmap *wxBitmap::GetBitmap(void) const
+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::SetPixbuf(GdkPixbuf* pixbuf, int depth)
+{
+ if (!m_refData)
+ m_refData = new wxBitmapRefData;
+
+ // 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);
+}
+
+void wxBitmap::PurgeOtherRepresentations(wxBitmap::Representation keep)
+{
+ 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;
+ }
+}
+
+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;
+}
+
+void wxBitmap::UngetRawData(wxPixelDataBase& WXUNUSED(data))
{
- wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, _T("invalid bitmap") );
+}
- return M_BMPDATA->m_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;
+}
+
+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