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//
// "$Id$"
//
// 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"
#include <FL/Fl_Copy_Surface.H>
#include <FL/Fl.H>
#ifdef FL_CFG_GFX_QUARTZ
#include "drivers/Quartz/Fl_Quartz_Graphics_Driver.h"
#endif
#ifdef FL_CFG_GFX_XLIB
#include "drivers/Xlib/Fl_Translated_Xlib_Graphics_Driver.H"
#endif
#ifdef FL_CFG_GFX_GDI
#include "drivers/GDI/Fl_GDI_Graphics_Driver.h"
#endif
#if defined(__APPLE__) // PORTME: Fl_Surface_Driver - platform copy surface
#elif defined(WIN32)
#else
#endif
/** Constructor.
\param w and \param h are the width and height of the clipboard surface
in pixels where drawing will occur.
*/
Fl_Copy_Surface::Fl_Copy_Surface(int w, int h) : Fl_Widget_Surface(NULL)
{
width = w;
height = h;
#ifdef __APPLE__ // PORTME: Fl_Surface_Driver - platform copy surface
driver(new Fl_Quartz_Graphics_Driver);
prepare_copy_pdf_and_tiff(w, h);
#elif defined(WIN32)
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);
}
#elif defined(FL_PORTING)
# pragma message "FL_PORTING: initialize members of Fl_Copy_Surface"
#else // Xlib
driver(new Fl_Translated_Xlib_Graphics_Driver());
Fl::first_window()->make_current();
oldwindow = fl_xid(Fl::first_window());
xid = fl_create_offscreen(w,h);
Fl_Surface_Device *present_surface = Fl_Surface_Device::surface();
set_current();
fl_color(FL_WHITE);
fl_rectf(0, 0, w, h);
present_surface->set_current();
#endif
}
/** Destructor.
*/
Fl_Copy_Surface::~Fl_Copy_Surface()
{
#ifdef __APPLE__ // PORTME: Fl_Surface_Driver - platform copy surface
complete_copy_pdf_and_tiff();
#elif defined(WIN32)
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);
#elif defined(FL_PORTING)
# pragma message "FL_PORTING: free resources in destructor of Fl_Copy_Surface"
#else // Xlib
fl_pop_clip();
unsigned char *data = fl_read_image(NULL,0,0,width,height,0);
fl_window = oldwindow;
_ss->set_current();
Fl::copy_image(data,width,height,1);
delete[] data;
fl_delete_offscreen(xid);
#endif
}
void Fl_Copy_Surface::set_current()
{
#if defined(__APPLE__) || defined(WIN32) // PORTME: Fl_Surface_Driver - platform copy surface
driver()->gc(gc);
fl_window = (Window)1;
Fl_Surface_Device::set_current();
#elif defined(FL_PORTING)
# pragma message "FL_PORTING: implement Fl_Copy_Surface::set_current"
#else
fl_window=xid;
_ss = Fl_Surface_Device::surface();
Fl_Surface_Device::set_current();
fl_push_no_clip();
#endif
}
#if defined(__APPLE__) // PORTME: Fl_Surface_Driver - platform copy surface
size_t Fl_Copy_Surface::MyPutBytes(void* info, const void* buffer, size_t count)
{
CFDataAppendBytes ((CFMutableDataRef) info, (const UInt8 *)buffer, count);
return count;
}
void Fl_Copy_Surface::init_PDF_context(int w, int h)
{
CGRect bounds = CGRectMake(0, 0, w, h );
pdfdata = CFDataCreateMutable(NULL, 0);
CGDataConsumerRef myconsumer;
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
if (&CGDataConsumerCreateWithCFData != NULL) {
myconsumer = CGDataConsumerCreateWithCFData(pdfdata); // 10.4
}
else
#endif
{
static CGDataConsumerCallbacks callbacks = { Fl_Copy_Surface::MyPutBytes, NULL };
myconsumer = CGDataConsumerCreate ((void*) pdfdata, &callbacks);
}
gc = CGPDFContextCreate (myconsumer, &bounds, NULL);
CGDataConsumerRelease (myconsumer);
}
void Fl_Copy_Surface::prepare_copy_pdf_and_tiff(int w, int h)
{
init_PDF_context(w, h);
if (gc == NULL) return;
CGRect bounds = CGRectMake(0, 0, w, h );
CGContextBeginPage (gc, &bounds);
CGContextTranslateCTM(gc, 0, h);
CGContextScaleCTM(gc, 1.0f, -1.0f);
CGContextSaveGState(gc);
}
void Fl_Copy_Surface::translate(int x, int y) {
CGContextRef gc = (CGContextRef)driver()->gc();
CGContextRestoreGState(gc);
CGContextSaveGState(gc);
CGContextTranslateCTM(gc, x, y);
CGContextSaveGState(gc);
}
void Fl_Copy_Surface::untranslate() {
CGContextRestoreGState((CGContextRef)driver()->gc());
}
#elif defined(WIN32)
void Fl_Copy_Surface::translate(int x, int y) {
((Fl_Translated_GDI_Graphics_Driver*)driver())->translate_all(x, y);
}
void Fl_Copy_Surface::untranslate() {
((Fl_Translated_GDI_Graphics_Driver*)driver())->untranslate_all();
}
#else
void Fl_Copy_Surface::translate(int x, int y) {
((Fl_Translated_Xlib_Graphics_Driver*)driver())->translate_all(x, y);
}
void Fl_Copy_Surface::untranslate() {
((Fl_Translated_Xlib_Graphics_Driver*)driver())->untranslate_all();
}
#endif // __APPLE__ // PORTME: Fl_Surface_Driver - platform copy surface
//
// End of "$Id$".
//
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