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Fixed fl_XXX_offscreen functions when the current output goes to a printer or a PostScript device

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7671 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2010-07-09 17:31:33 +00:00
parent 0ac2bc4d40
commit 8306c3d0b3
3 changed files with 41 additions and 10 deletions
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7
FL/win32.H
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@ -121,16 +121,19 @@ extern FL_EXPORT void fl_save_dc( HWND w, HDC dc);
// off-screen pixmaps: create, destroy, draw into, copy to window
typedef HBITMAP Fl_Offscreen;
#define fl_create_offscreen(w, h) CreateCompatibleBitmap(fl_gc, w, h)
#define fl_create_offscreen(w, h) \
CreateCompatibleBitmap( (fl_gc ? fl_gc : fl_GetDC(0) ) , w, h)
extern FL_EXPORT HDC fl_makeDC(HBITMAP);
# define fl_begin_offscreen(b) \
HDC _sgc=fl_gc; Window _sw=fl_window; \
Fl_Surface_Device *_ss = fl_surface; fl_display_device->set_current(); \
fl_gc=fl_makeDC(b); int _savedc = SaveDC(fl_gc); fl_window=(HWND)b; fl_push_no_clip()
# define fl_end_offscreen() \
fl_pop_clip(); RestoreDC(fl_gc, _savedc); DeleteDC(fl_gc); fl_window=_sw; fl_gc = _sgc
fl_pop_clip(); RestoreDC(fl_gc, _savedc); DeleteDC(fl_gc); _ss->set_current(); fl_window=_sw; fl_gc = _sgc
FL_EXPORT void fl_copy_offscreen(int x,int y,int w,int h,HBITMAP pixmap,int srcx,int srcy);
FL_EXPORT void fl_copy_offscreen_with_alpha(int x,int y,int w,int h,HBITMAP pixmap,int srcx,int srcy);

16
FL/x.H
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@ -110,16 +110,20 @@ extern FL_EXPORT ulong fl_event_time;
// off-screen pixmaps: create, destroy, draw into, copy to window:
typedef ulong Fl_Offscreen;
#define fl_create_offscreen(w,h) \
XCreatePixmap(fl_display, fl_window, w, h, fl_visual->depth)
# define fl_create_offscreen(w,h) \
XCreatePixmap(fl_display, \
(fl_surface->type() == Fl_Display_Device::device_type ? \
fl_window : fl_xid(Fl::first_window()) ) , \
w, h, fl_visual->depth)
// begin/end are macros that save the old state in local variables:
# define fl_begin_offscreen(pixmap) \
Window _sw=fl_window; fl_window=pixmap; fl_push_no_clip()
Window _sw=fl_window; fl_window=pixmap; \
Fl_Surface_Device *_ss = fl_surface; fl_display_device->set_current(); \
fl_push_no_clip()
# define fl_end_offscreen() \
fl_pop_clip(); fl_window = _sw
fl_pop_clip(); fl_window = _sw; _ss->set_current()
# define fl_copy_offscreen(x,y,w,h,pixmap,srcx,srcy) \
XCopyArea(fl_display, pixmap, fl_window, fl_gc, srcx, srcy, w, h, x, y)
extern void fl_copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
# define fl_delete_offscreen(pixmap) XFreePixmap(fl_display, pixmap)
// Bitmap masks

28
src/Fl_Double_Window.cxx
View File

@ -65,8 +65,28 @@ void Fl_Double_Window::show() {
Fl_Window::show();
}
static void fl_copy_offscreen_to_display(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
void fl_copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy) {
if( fl_graphics_driver == fl_display_device->driver()) {
fl_copy_offscreen_to_display(x, y, w, h, pixmap, srcx, srcy);
}
else { // when copy is not to the display
fl_begin_offscreen(pixmap);
uchar *img = fl_read_image(NULL, srcx, srcy, w, h, 0);
fl_end_offscreen();
fl_draw_image(img, x, y, w, h, 3, 0);
delete img;
}
}
#if defined(USE_X11)
static void fl_copy_offscreen_to_display(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy) {
XCopyArea(fl_display, pixmap, fl_window, fl_gc, srcx, srcy, w, h, x, y);
}
// maybe someone feels inclined to implement alpha blending on X11?
char fl_can_do_alpha_blending() {
return 0;
@ -134,7 +154,7 @@ HDC fl_makeDC(HBITMAP bitmap) {
return new_gc;
}
void fl_copy_offscreen(int x,int y,int w,int h,HBITMAP bitmap,int srcx,int srcy) {
static void fl_copy_offscreen_to_display(int x,int y,int w,int h,HBITMAP bitmap,int srcx,int srcy) {
HDC new_gc = CreateCompatibleDC(fl_gc);
int save = SaveDC(new_gc);
SelectObject(new_gc, bitmap);
@ -195,7 +215,7 @@ static void bmProviderRelease (void *src, const void *data, size_t size)
if(count == 1) free((void*)data);
}
void fl_copy_offscreen(int x,int y,int w,int h,Fl_Offscreen osrc,int srcx,int srcy) {
static void fl_copy_offscreen_to_display(int x,int y,int w,int h,Fl_Offscreen osrc,int srcx,int srcy) {
CGContextRef src = (CGContextRef)osrc;
void *data = CGBitmapContextGetData(src);
int sw = CGBitmapContextGetWidth(src);
@ -230,8 +250,11 @@ const int stack_max = 16;
static int stack_ix = 0;
static CGContextRef stack_gc[stack_max];
static Window stack_window[stack_max];
static Fl_Surface_Device *_ss;
void fl_begin_offscreen(Fl_Offscreen ctx) {
_ss = fl_surface;
fl_display_device->set_current();
if (stack_ix<stack_max) {
stack_gc[stack_ix] = fl_gc;
stack_window[stack_ix] = fl_window;
@ -256,6 +279,7 @@ void fl_end_offscreen() {
fl_gc = stack_gc[stack_ix];
fl_window = stack_window[stack_ix];
}
_ss->set_current();
}
extern void fl_restore_clip();