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Fl_GDI_Copy_Surface_Driver: add BITMAP version of graphics to clipboard

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When copying graphical data to the clipboard with Fl_Copy_Surface,
both a vectorial and a bitmap versions of the graphics are copied.
This commit is contained in:
ManoloFLTK 2019-07-18 17:11:03 +02:00
parent af5fb2aeb3
commit 3679dd5fbd
1 changed files with 15 additions and 0 deletions
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15
src/drivers/GDI/Fl_GDI_Copy_Surface_Driver.cxx
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@ -23,6 +23,7 @@
#include <FL/platform.H> #include <FL/platform.H>
#include "Fl_GDI_Graphics_Driver.H" #include "Fl_GDI_Graphics_Driver.H"
#include "../WinAPI/Fl_WinAPI_Screen_Driver.H" #include "../WinAPI/Fl_WinAPI_Screen_Driver.H"
#include <FL/Fl_Image_Surface.H>
#include <windows.h> #include <windows.h>
class Fl_GDI_Copy_Surface_Driver : public Fl_Copy_Surface_Driver { class Fl_GDI_Copy_Surface_Driver : public Fl_Copy_Surface_Driver {
@ -74,7 +75,21 @@ Fl_GDI_Copy_Surface_Driver::~Fl_GDI_Copy_Surface_Driver() {
if ( hmf != NULL ) { if ( hmf != NULL ) {
if ( OpenClipboard (NULL) ){ if ( OpenClipboard (NULL) ){
EmptyClipboard (); EmptyClipboard ();
// put first the vectorial form of the graphics in the clipboard
SetClipboardData (CF_ENHMETAFILE, hmf); SetClipboardData (CF_ENHMETAFILE, hmf);
// then put a BITMAP version of the graphics in the clipboard
float scaling = driver()->scale();
int W = width * scaling, H = height * scaling;
RECT rect = {0, 0, W, H};
Fl_Image_Surface *surf = new Fl_Image_Surface(W, H);
Fl_Surface_Device::push_current(surf);
fl_color(FL_WHITE); // draw white background
fl_rectf(0, 0, W, H);
PlayEnhMetaFile((HDC)surf->driver()->gc(), hmf, &rect); // draw metafile to offscreen buffer
SetClipboardData(CF_BITMAP, surf->offscreen());
Fl_Surface_Device::pop_current();
delete surf;
CloseClipboard (); CloseClipboard ();
} }
DeleteEnhMetaFile(hmf); DeleteEnhMetaFile(hmf);