#include "wx/bitmap.h"
#ifndef WX_PRECOMP
- #include "wx/app.h"
#include "wx/icon.h"
- #include "wx/math.h"
#include "wx/image.h"
#include "wx/colour.h"
#endif
#include <gtk/gtk.h>
-//-----------------------------------------------------------------------------
-// data
-//-----------------------------------------------------------------------------
-
extern GtkWidget *wxGetRootWindow();
+static void PixmapToPixbuf(GdkPixmap* pixmap, GdkPixbuf* pixbuf, int w, int h)
+{
+ gdk_pixbuf_get_from_drawable(pixbuf, pixmap, NULL, 0, 0, 0, 0, w, h);
+ if (gdk_drawable_get_depth(pixmap) == 1)
+ {
+ // invert to match XBM convention
+ guchar* p = gdk_pixbuf_get_pixels(pixbuf);
+ const int inc = 3 + int(gdk_pixbuf_get_has_alpha(pixbuf) != 0);
+ const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * inc;
+ for (int y = h; y; y--, p += rowpad)
+ for (int x = w; x; x--, p += inc)
+ {
+ // pixels are either (0,0,0) or (0xff,0xff,0xff)
+ p[0] = ~p[0];
+ p[1] = ~p[1];
+ p[2] = ~p[2];
+ }
+ }
+}
+
+static void MaskToAlpha(GdkPixmap* mask, GdkPixbuf* pixbuf, int w, int h)
+{
+ GdkPixbuf* mask_pixbuf = gdk_pixbuf_get_from_drawable(
+ NULL, mask, NULL, 0, 0, 0, 0, w, h);
+ guchar* p = gdk_pixbuf_get_pixels(pixbuf) + 3;
+ const guchar* mask_data = gdk_pixbuf_get_pixels(mask_pixbuf);
+ const int rowpad = gdk_pixbuf_get_rowstride(pixbuf) - w * 4;
+ const int mask_rowpad = gdk_pixbuf_get_rowstride(mask_pixbuf) - w * 3;
+ for (int y = h; y; y--, p += rowpad, mask_data += mask_rowpad)
+ {
+ for (int x = w; x; x--, p += 4, mask_data += 3)
+ {
+ *p = 255;
+ // no need to test all 3 components,
+ // pixels are either (0,0,0) or (0xff,0xff,0xff)
+ if (mask_data[0] == 0)
+ *p = 0;
+ }
+ }
+ g_object_unref(mask_pixbuf);
+}
+
//-----------------------------------------------------------------------------
// wxMask
//-----------------------------------------------------------------------------
m_bitmap = NULL;
}
+wxMask::wxMask(const wxMask& mask)
+{
+ if ( !mask.m_bitmap )
+ {
+ m_bitmap = NULL;
+ return;
+ }
+
+ // create a copy of an existing mask
+ gint w, h;
+ gdk_drawable_get_size(mask.m_bitmap, &w, &h);
+ m_bitmap = gdk_pixmap_new(mask.m_bitmap, w, h, 1);
+
+ wxGtkObject<GdkGC> gc(gdk_gc_new(m_bitmap));
+ gdk_draw_drawable(m_bitmap, gc, mask.m_bitmap, 0, 0, 0, 0, -1, -1);
+}
+
wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
{
m_bitmap = NULL;
return true;
}
-GdkBitmap *wxMask::GetBitmap() const
+GdkPixmap* wxMask::GetBitmap() const
{
return m_bitmap;
}
class wxBitmapRefData: public wxGDIRefData
{
public:
- wxBitmapRefData();
+ wxBitmapRefData(int width, int height, int depth);
virtual ~wxBitmapRefData();
- virtual bool IsOk() const { return m_pixmap || m_pixbuf; }
+ virtual bool IsOk() const;
GdkPixmap *m_pixmap;
GdkPixbuf *m_pixbuf;
int m_width;
int m_height;
int m_bpp;
+ bool m_alphaRequested;
+
+private:
+ // We don't provide a copy ctor as copying m_pixmap and m_pixbuf properly
+ // is expensive and we don't want to do it implicitly (and possibly
+ // accidentally). wxBitmap::CloneGDIRefData() which does need to do it does
+ // it explicitly itself.
+ wxDECLARE_NO_COPY_CLASS(wxBitmapRefData);
};
-wxBitmapRefData::wxBitmapRefData()
+wxBitmapRefData::wxBitmapRefData(int width, int height, int depth)
{
m_pixmap = NULL;
m_pixbuf = NULL;
m_mask = NULL;
- m_width = 0;
- m_height = 0;
- m_bpp = 0;
+ m_width = width;
+ m_height = height;
+ m_bpp = depth;
+ if (m_bpp < 0)
+ m_bpp = gdk_drawable_get_depth(wxGetRootWindow()->window);
+ m_alphaRequested = depth == 32;
}
wxBitmapRefData::~wxBitmapRefData()
delete m_mask;
}
+bool wxBitmapRefData::IsOk() const
+{
+ return m_bpp != 0;
+}
//-----------------------------------------------------------------------------
// wxBitmap
bool wxBitmap::Create( int width, int height, int depth )
{
UnRef();
-
- if ( width <= 0 || height <= 0 )
- {
- return false;
- }
-
- const GdkVisual* visual = wxTheApp->GetGdkVisual();
-
- if (depth == 32)
- {
- SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, width, height), 32);
-
- if (!M_BMPDATA)
- return false;
-
- // must initialize alpha, otherwise GetPixmap()
- // will create a mask out of garbage
- gdk_pixbuf_fill(M_BMPDATA->m_pixbuf, 0x000000ff);
- }
- else if (depth == 24)
- {
- if (visual->depth == depth)
- SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth));
- else
- SetPixbuf(gdk_pixbuf_new(GDK_COLORSPACE_RGB, false, 8, width, height), 24);
- }
- else
- {
- if (depth != 1)
- {
- if (depth == -1)
- depth = visual->depth;
- }
- SetPixmap(gdk_pixmap_new(wxGetRootWindow()->window, width, height, depth));
- }
-
- return IsOk();
+ wxCHECK_MSG(width >= 0 && height >= 0, false, "invalid bitmap size");
+ m_refData = new wxBitmapRefData(width, height, depth);
+ return true;
}
#if wxUSE_IMAGE
UnRef();
wxCHECK_MSG( image.IsOk(), false, wxT("invalid image") );
- wxCHECK_MSG( depth == -1 || depth == 1, false, wxT("invalid bitmap depth") );
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))
+ if (depth == 32 || (depth == -1 && image.HasAlpha()))
return CreateFromImageAsPixbuf(image);
// otherwise create pixmap, if alpha is present it will be converted to mask
bool wxBitmap::CreateFromImageAsPixbuf(const wxImage& image)
{
- wxASSERT(image.HasAlpha());
-
int width = image.GetWidth();
int height = image.GetHeight();
Create(width, height, 32);
- GdkPixbuf* pixbuf = M_BMPDATA->m_pixbuf;
+ GdkPixbuf* pixbuf = GetPixbuf();
if (!pixbuf)
return false;
for (int y = 0; y < height; y++, out += rowpad)
{
- for (int x = 0; x < width; x++, alpha++, out += 4, in += 3)
+ for (int x = 0; x < width; x++, out += 4, in += 3)
{
out[0] = in[0];
out[1] = in[1];
out[2] = in[2];
- out[3] = *alpha;
+ if (alpha)
+ out[3] = *alpha++;
}
}
wxBitmap ret;
wxCHECK_MSG(IsOk(), ret, wxT("invalid bitmap"));
+
+ const int w = rect.width;
+ const int h = rect.height;
+ const wxBitmapRefData* bmpData = M_BMPDATA;
+
wxCHECK_MSG(rect.x >= 0 && rect.y >= 0 &&
- rect.x + rect.width <= M_BMPDATA->m_width &&
- rect.y + rect.height <= M_BMPDATA->m_height,
+ rect.x + w <= bmpData->m_width &&
+ rect.y + h <= bmpData->m_height,
ret, wxT("invalid bitmap region"));
- if (HasPixbuf() || M_BMPDATA->m_bpp == 32)
+ wxBitmapRefData * const newRef = new wxBitmapRefData(w, h, bmpData->m_bpp);
+ ret.m_refData = newRef;
+
+ if (bmpData->m_pixbuf)
{
- GdkPixbuf *pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB,
- gdk_pixbuf_get_has_alpha(GetPixbuf()),
- 8, rect.width, rect.height);
- if (!pixbuf)
- return ret;
-
- ret.SetPixbuf(pixbuf, M_BMPDATA->m_bpp);
- gdk_pixbuf_copy_area(GetPixbuf(),
- rect.x, rect.y, rect.width, rect.height,
- pixbuf, 0, 0);
+ GdkPixbuf* pixbuf =
+ gdk_pixbuf_new_subpixbuf(bmpData->m_pixbuf, rect.x, rect.y, w, h);
+ newRef->m_pixbuf = gdk_pixbuf_copy(pixbuf);
+ g_object_unref(pixbuf);
}
- else
+ if (bmpData->m_pixmap)
{
- ret.Create(rect.width, rect.height, M_BMPDATA->m_bpp);
- wxGtkObject<GdkGC> gc(gdk_gc_new( ret.GetPixmap() ));
- gdk_draw_drawable( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
+ newRef->m_pixmap = gdk_pixmap_new(bmpData->m_pixmap, w, h, -1);
+ GdkGC* gc = gdk_gc_new(newRef->m_pixmap);
+ gdk_draw_drawable(
+ newRef->m_pixmap, gc, bmpData->m_pixmap, rect.x, rect.y, 0, 0, w, h);
+ g_object_unref(gc);
}
- // make mask, unless there is already alpha
- if (GetMask() && !HasAlpha())
+ if (bmpData->m_mask && bmpData->m_mask->m_bitmap)
{
- wxMask *mask = new wxMask;
- mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
-
- wxGtkObject<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);
-
- ret.SetMask( mask );
+ GdkPixmap* sub_mask = gdk_pixmap_new(bmpData->m_mask->m_bitmap, w, h, 1);
+ newRef->m_mask = new wxMask;
+ newRef->m_mask->m_bitmap = sub_mask;
+ GdkGC* gc = gdk_gc_new(sub_mask);
+ gdk_draw_drawable(
+ sub_mask, gc, bmpData->m_mask->m_bitmap, rect.x, rect.y, 0, 0, w, h);
+ g_object_unref(gc);
}
return ret;
wxCHECK_MSG( IsOk(), false, wxT("invalid bitmap") );
#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
+ if (image.IsOk() && image.SaveFile(name, type))
+ return true;
+#endif
+ const char* type_name = NULL;
+ switch (type)
+ {
+ case wxBITMAP_TYPE_BMP: type_name = "bmp"; break;
+ case wxBITMAP_TYPE_ICO: type_name = "ico"; break;
+ case wxBITMAP_TYPE_JPEG: type_name = "jpeg"; break;
+ case wxBITMAP_TYPE_PNG: type_name = "png"; break;
+ default: break;
+ }
+ return type_name &&
+ gdk_pixbuf_save(GetPixbuf(), name.fn_str(), type_name, NULL, NULL);
}
bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
{
- UnRef();
-
- if (type == wxBITMAP_TYPE_XPM)
- {
- GdkBitmap *mask = NULL;
- SetPixmap(gdk_pixmap_create_from_xpm(wxGetRootWindow()->window, &mask, NULL, name.fn_str()));
- if (!M_BMPDATA)
- return false; // do not set the mask
-
- if (mask)
- {
- M_BMPDATA->m_mask = new wxMask;
- M_BMPDATA->m_mask->m_bitmap = mask;
- }
- }
#if wxUSE_IMAGE
- else // try if wxImage can load it
+ wxImage image;
+ if (image.LoadFile(name, type) && image.IsOk())
+ *this = wxBitmap(image);
+ else
+#endif
{
- wxImage image;
- if (image.LoadFile(name, type) && image.Ok())
- CreateFromImage(image, -1);
+ wxUnusedVar(type); // The type is detected automatically by GDK.
+
+ UnRef();
+ GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(name.fn_str(), NULL);
+ if (pixbuf)
+ SetPixbuf(pixbuf);
}
-#endif // wxUSE_IMAGE
return IsOk();
}
void wxBitmap::SetPixmap( GdkPixmap *pixmap )
{
+ UnRef();
+
if (!pixmap)
return;
- 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);
+ int w, h;
+ gdk_drawable_get_size(pixmap, &w, &h);
+ wxBitmapRefData* bmpData = new wxBitmapRefData(w, h, 0);
+ m_refData = bmpData;
+ bmpData->m_pixmap = pixmap;
+ bmpData->m_bpp = gdk_drawable_get_depth(pixmap);
}
GdkPixmap *wxBitmap::GetPixmap() const
{
wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") );
- // create the pixmap on the fly if we use Pixbuf representation:
- if (M_BMPDATA->m_pixmap == NULL)
+ wxBitmapRefData* bmpData = M_BMPDATA;
+ if (bmpData->m_pixmap)
+ return bmpData->m_pixmap;
+
+ if (bmpData->m_pixbuf)
{
- GdkPixmap** pmask = NULL;
- if (gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf))
+ GdkPixmap** mask_pixmap = NULL;
+ if (gdk_pixbuf_get_has_alpha(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;
+ delete bmpData->m_mask;
+ bmpData->m_mask = new wxMask;
+ mask_pixmap = &bmpData->m_mask->m_bitmap;
}
- gdk_pixbuf_render_pixmap_and_mask(M_BMPDATA->m_pixbuf,
- &M_BMPDATA->m_pixmap,
- pmask,
- 0x80 /* alpha threshold */);
+ gdk_pixbuf_render_pixmap_and_mask(
+ bmpData->m_pixbuf, &bmpData->m_pixmap, mask_pixmap, 128);
}
-
- return M_BMPDATA->m_pixmap;
+ else
+ {
+ bmpData->m_pixmap = gdk_pixmap_new(wxGetRootWindow()->window,
+ bmpData->m_width, bmpData->m_height, bmpData->m_bpp == 1 ? 1 : -1);
+ }
+ return bmpData->m_pixmap;
}
bool wxBitmap::HasPixmap() const
{
wxCHECK_MSG( IsOk(), NULL, wxT("invalid bitmap") );
- if (M_BMPDATA->m_pixbuf == NULL)
- {
+ wxBitmapRefData* bmpData = M_BMPDATA;
+ if (bmpData->m_pixbuf)
+ return bmpData->m_pixbuf;
- 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;
+ const int w = bmpData->m_width;
+ const int h = bmpData->m_height;
+ GdkPixmap* mask = NULL;
+ if (bmpData->m_mask)
+ mask = bmpData->m_mask->m_bitmap;
+ const bool useAlpha = bmpData->m_alphaRequested || mask;
+ bmpData->m_pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, useAlpha, 8, w, h);
+ if (bmpData->m_pixmap)
+ PixmapToPixbuf(bmpData->m_pixmap, bmpData->m_pixbuf, w, h);
+ if (mask)
+ MaskToAlpha(mask, bmpData->m_pixbuf, w, h);
+ return bmpData->m_pixbuf;
}
bool wxBitmap::HasPixbuf() const
return M_BMPDATA->m_pixbuf != NULL;
}
-void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf, int depth)
+void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf)
{
+ UnRef();
+
if (!pixbuf)
return;
- if (!m_refData)
- m_refData = new wxBitmapRefData;
+ int depth = -1;
+ if (gdk_pixbuf_get_has_alpha(pixbuf))
+ depth = 32;
+ m_refData = new wxBitmapRefData(
+ gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), depth);
- // 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)
bool wxBitmap::HasAlpha() const
{
- return m_refData != NULL && M_BMPDATA->m_pixbuf != NULL &&
- gdk_pixbuf_get_has_alpha(M_BMPDATA->m_pixbuf);
+ const wxBitmapRefData* bmpData = M_BMPDATA;
+ return bmpData && (bmpData->m_alphaRequested ||
+ (bmpData->m_pixbuf && gdk_pixbuf_get_has_alpha(bmpData->m_pixbuf)));
}
wxGDIRefData* wxBitmap::CreateGDIRefData() const
{
- return new wxBitmapRefData;
+ return new wxBitmapRefData(0, 0, 0);
}
wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const
{
const wxBitmapRefData* oldRef = 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;
+ wxBitmapRefData * const newRef = new wxBitmapRefData(oldRef->m_width,
+ oldRef->m_height,
+ oldRef->m_bpp);
if (oldRef->m_pixmap != NULL)
{
newRef->m_pixmap = gdk_pixmap_new(
}
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);
- wxGtkObject<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);
+ newRef->m_mask = new wxMask(*oldRef->m_mask);
}
return newRef;
projects / wxWidgets.git / blobdiff