// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#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 <gdk/gdkrgb.h>
#endif // GTK+ 2.0/1.2
+#include <math.h>
+
extern void gdk_wx_draw_bitmap (GdkDrawable *drawable,
GdkGC *gc,
GdkDrawable *src,
wxBitmapRefData::~wxBitmapRefData()
{
- if (m_pixmap) gdk_pixmap_unref( m_pixmap );
- if (m_bitmap) gdk_bitmap_unref( m_bitmap );
- if (m_mask) delete m_mask;
- if (m_palette) delete m_palette;
+ if (m_pixmap)
+ gdk_pixmap_unref( m_pixmap );
+ if (m_bitmap)
+ gdk_bitmap_unref( m_bitmap );
+ delete m_mask;
+ delete m_palette;
}
//-----------------------------------------------------------------------------
{
UnRef();
- wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
+ if ( width <= 0 || height <= 0 )
+ {
+ return false;
+ }
GdkVisual *visual = wxTheApp->GetGdkVisual();
- if (depth == -1) depth = visual->depth;
+ if (depth == -1)
+ depth = visual->depth;
- wxCHECK_MSG( (depth == visual->depth) ||
- (depth == 1), FALSE, wxT("invalid bitmap depth") )
+ wxCHECK_MSG( (depth == visual->depth) || (depth == 1), FALSE,
+ wxT("invalid bitmap depth") )
m_refData = new wxBitmapRefData();
M_BMPDATA->m_mask = (wxMask *) NULL;
return TRUE;
}
+wxBitmap wxBitmap::Rescale( int clipx, int clipy, int clipwidth, int clipheight, int newx, int newy )
+{
+ 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;
+
+ 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())
+ {
+ 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 );
+ }
+
+ char *dst = NULL;
+ long dstbyteperline = 0;
+
+ if (GetBitmap())
+ {
+ bpp = 1;
+ dstbyteperline = width/8*M_BMPDATA->m_bpp;
+ if (width*M_BMPDATA->m_bpp % 8 != 0)
+ dstbyteperline++;
+ dst = (char*) malloc(dstbyteperline*height);
+ }
+
+ // 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++)
+ {
+ 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 (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() );
+
+ 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;
+ }
+ 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 );
+ }
+
+ free( tablex );
+ free( tabley );
+
+ return bmp;
+}
+
bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
{
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)
{
- int width = image.GetWidth();
- int height = image.GetHeight();
-
- SetHeight( height );
- SetWidth( width );
-
SetBitmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, 1 ) );
SetDepth( 1 );
// ------
else
{
- int width = image.GetWidth();
- int height = image.GetHeight();
-
- SetHeight( height );
- SetWidth( width );
-
SetPixmap( gdk_pixmap_new( wxGetRootWindow()->window, width, height, -1 ) );
GdkVisual *visual = wxTheApp->GetGdkVisual();
{
// the colour used as transparent one in wxImage and the one it is replaced
// with when it really occurs in the bitmap
- static const MASK_RED = 1;
- static const MASK_GREEN = 2;
- static const MASK_BLUE = 3;
- static const MASK_BLUE_REPLACEMENT = 2;
+ 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;
}
wxBitmap::wxBitmap( const wxBitmap& bmp )
- : wxGDIObject()
+ : wxGDIObject()
{
Ref( bmp );
}
wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
{
- m_refData = new wxBitmapRefData();
+ if ( width > 0 && height > 0 )
+ {
+ m_refData = new wxBitmapRefData();
- M_BMPDATA->m_mask = (wxMask *) NULL;
- M_BMPDATA->m_bitmap =
- gdk_bitmap_create_from_data( wxGetRootWindow()->window, (gchar *) bits, width, height );
- M_BMPDATA->m_width = width;
- M_BMPDATA->m_height = height;
- M_BMPDATA->m_bpp = 1;
+ M_BMPDATA->m_mask = (wxMask *) NULL;
+ M_BMPDATA->m_bitmap = gdk_bitmap_create_from_data
+ (
+ wxGetRootWindow()->window,
+ (gchar *) bits,
+ width,
+ height
+ );
+ M_BMPDATA->m_width = width;
+ M_BMPDATA->m_height = height;
+ M_BMPDATA->m_bpp = 1;
- wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
+ wxASSERT_MSG( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
+ }
}
wxBitmap::~wxBitmap()
bool wxBitmap::Ok() const
{
- return (m_refData != NULL);
+ return (m_refData != NULL) && (M_BMPDATA->m_bitmap || M_BMPDATA->m_pixmap);
}
int wxBitmap::GetHeight() const
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 );
}
mask->m_bitmap = gdk_pixmap_new( wxGetRootWindow()->window, rect.width, rect.height, 1 );
GdkGC *gc = gdk_gc_new( mask->m_bitmap );
- gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
+ 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 );
ret.SetMask( mask );
{
UnRef();
- if (!wxFileExists(name)) return FALSE;
+ if (!wxFileExists(name))
+ return FALSE;
GdkVisual *visual = wxTheApp->GetGdkVisual();
GdkBitmap *mask = (GdkBitmap*) NULL;
- M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxGetRootWindow()->window, &mask, NULL, name.fn_str() );
+ M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm
+ (
+ wxGetRootWindow()->window,
+ &mask,
+ NULL,
+ name.fn_str()
+ );
if (mask)
{
else // try if wxImage can load it
{
wxImage image;
- if (!image.LoadFile( name, type )) return FALSE;
- if (image.Ok())
- *this = wxBitmap(image);
- else return FALSE;
+ if ( !image.LoadFile( name, type ) || !image.Ok() )
+ return FALSE;
+
+ *this = wxBitmap(image);
}
return TRUE;
wxPalette *wxBitmap::GetPalette() const
{
- if (!Ok()) return (wxPalette *) NULL;
+ if (!Ok())
+ return (wxPalette *) NULL;
return M_BMPDATA->m_palette;
}
void wxBitmap::SetHeight( int height )
{
- if (!m_refData) m_refData = new wxBitmapRefData();
+ if (!m_refData)
+ m_refData = new wxBitmapRefData();
M_BMPDATA->m_height = height;
}
void wxBitmap::SetWidth( int width )
{
- if (!m_refData) m_refData = new wxBitmapRefData();
+ if (!m_refData)
+ m_refData = new wxBitmapRefData();
M_BMPDATA->m_width = width;
}
void wxBitmap::SetDepth( int depth )
{
- if (!m_refData) m_refData = new wxBitmapRefData();
+ if (!m_refData)
+ m_refData = new wxBitmapRefData();
M_BMPDATA->m_bpp = depth;
}
void wxBitmap::SetPixmap( GdkPixmap *pixmap )
{
- if (!m_refData) m_refData = new wxBitmapRefData();
+ if (!m_refData)
+ m_refData = new wxBitmapRefData();
M_BMPDATA->m_pixmap = pixmap;
}
void wxBitmap::SetBitmap( GdkPixmap *bitmap )
{
- if (!m_refData) m_refData = new wxBitmapRefData();
+ if (!m_refData)
+ m_refData = new wxBitmapRefData();
M_BMPDATA->m_bitmap = bitmap;
}
projects / wxWidgets.git / blobdiff