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//
// "$Id: Fl_GDI_Copy_Surface.cxx 11241 2016-02-27 13:52:27Z manolo $"
//
// Copy-to-clipboard code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2016 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include "../../config_lib.h"
#ifdef FL_CFG_GFX_GDI
#include <FL/Fl_Copy_Surface.H>
#include "Fl_GDI_Graphics_Driver.H"
#include <windows.h>
class Fl_GDI_Copy_Surface_Driver : public Fl_Copy_Surface_Driver {
friend class Fl_Copy_Surface_Driver;
protected:
HDC oldgc;
HDC gc;
Fl_GDI_Copy_Surface_Driver(int w, int h);
~Fl_GDI_Copy_Surface_Driver();
void set_current();
void translate(int x, int y);
void untranslate();
int w() {return width;}
int h() {return height;}
int printable_rect(int *w, int *h) {*w = width; *h = height; return 0;}
};
Fl_Copy_Surface_Driver *Fl_Copy_Surface_Driver::newCopySurfaceDriver(int w, int h)
{
return new Fl_GDI_Copy_Surface_Driver(w, h);
}
Fl_GDI_Copy_Surface_Driver::Fl_GDI_Copy_Surface_Driver(int w, int h) : Fl_Copy_Surface_Driver(w, h) {
driver(new Fl_Translated_GDI_Graphics_Driver);
oldgc = (HDC)Fl_Surface_Device::surface()->driver()->gc();
// exact computation of factor from screen units to EnhMetaFile units (0.01 mm)
HDC hdc = GetDC(NULL);
int hmm = GetDeviceCaps(hdc, HORZSIZE);
int hdots = GetDeviceCaps(hdc, HORZRES);
int vmm = GetDeviceCaps(hdc, VERTSIZE);
int vdots = GetDeviceCaps(hdc, VERTRES);
ReleaseDC(NULL, hdc);
float factorw = (100.f * hmm) / hdots;
float factorh = (100.f * vmm) / vdots;
RECT rect; rect.left = 0; rect.top = 0; rect.right = (LONG)(w * factorw); rect.bottom = (LONG)(h * factorh);
gc = CreateEnhMetaFile (NULL, NULL, &rect, NULL);
if (gc != NULL) {
SetTextAlign(gc, TA_BASELINE|TA_LEFT);
SetBkMode(gc, TRANSPARENT);
}
}
Fl_GDI_Copy_Surface_Driver::~Fl_GDI_Copy_Surface_Driver() {
if (oldgc == (HDC)Fl_Surface_Device::surface()->driver()->gc()) oldgc = NULL;
HENHMETAFILE hmf = CloseEnhMetaFile (gc);
if ( hmf != NULL ) {
if ( OpenClipboard (NULL) ){
EmptyClipboard ();
SetClipboardData (CF_ENHMETAFILE, hmf);
CloseClipboard ();
}
DeleteEnhMetaFile(hmf);
}
DeleteDC(gc);
Fl_Surface_Device::surface()->driver()->gc(oldgc);
}
void Fl_GDI_Copy_Surface_Driver::set_current() {
driver()->gc(gc);
fl_window = (Window)1;
Fl_Surface_Device::set_current();
}
void Fl_GDI_Copy_Surface_Driver::translate(int x, int y) {
((Fl_Translated_GDI_Graphics_Driver*)driver())->translate_all(x, y);
}
void Fl_GDI_Copy_Surface_Driver::untranslate() {
((Fl_Translated_GDI_Graphics_Driver*)driver())->untranslate_all();
}
#endif // FL_CFG_GFX_GDI
//
// End of "$Id: Fl_Copy_Surface.H 11220 2016-02-26 12:51:47Z manolo $".
//
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