You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.5 KiB
108 lines
3.5 KiB
//
|
|
// ghostscript_interface
|
|
//
|
|
// Part of KDVI - A framework for multipage text/gfx viewers
|
|
//
|
|
// (C) 2004 Stefan Kebekus
|
|
// Distributed under the GPL
|
|
|
|
#ifndef _PSGS_H_
|
|
#define _PSGS_H_
|
|
|
|
#include <tqcolor.h>
|
|
#include <tqobject.h>
|
|
#include <tqstring.h>
|
|
#include <tqintdict.h>
|
|
|
|
class PageNumber;
|
|
class TQPainter;
|
|
|
|
|
|
class pageInfo
|
|
{
|
|
public:
|
|
pageInfo(const TQString& _PostScriptString);
|
|
~pageInfo();
|
|
|
|
TQColor background;
|
|
TQColor permanentBackground;
|
|
TQString *PostScriptString;
|
|
};
|
|
|
|
|
|
class ghostscript_interface : public TQObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
|
|
public:
|
|
ghostscript_interface();
|
|
~ghostscript_interface();
|
|
|
|
void clear();
|
|
|
|
// sets the PostScript which is used on a certain page
|
|
void setPostScript(const PageNumber& page, const TQString& PostScript);
|
|
|
|
// sets path from additional postscript files may be read
|
|
void setIncludePath(const TQString &_includePath);
|
|
|
|
// Sets the background color for a certain page. If permanent is false then the original
|
|
// background color can be restored by calling restoreBackground(page).
|
|
// The Option permanent = false is used when we want to display a different paper
|
|
// color as the one specified in the dvi file.
|
|
void setBackgroundColor(const PageNumber& page, const TQColor& background_color, bool permanent = true);
|
|
|
|
// Restore the background to the color which was specified by the last call to setBackgroundColor()
|
|
// With option permanent = true.
|
|
void restoreBackgroundColor(const PageNumber& page);
|
|
|
|
// Draws the graphics of the page into the painter, if possible. If
|
|
// the page does not contain any graphics, nothing happens
|
|
void graphics(const PageNumber& page, double dpi, long magnification, TQPainter* paint);
|
|
|
|
// Returns the background color for a certain page. If no color was
|
|
// set, TQt::white is returned.
|
|
TQColor getBackgroundColor(const PageNumber& page) const;
|
|
|
|
TQString *PostScriptHeaderString;
|
|
|
|
/** This method tries to find the PostScript file 'filename' in the
|
|
DVI file's directory (if the base-URL indicates that the DVI file
|
|
is local), and, if that fails, uses kpsewhich to find the file. If
|
|
the file is found, the full path (including file name) is
|
|
returned. Otherwise, the method returns the first argument. TODO:
|
|
use the DVI file's baseURL, once this is implemented.
|
|
*/
|
|
static TQString locateEPSfile(const TQString &filename, const KURL &base);
|
|
|
|
private:
|
|
void gs_generate_graphics_file(const PageNumber& page, const TQString& filename, long magnification);
|
|
TQIntDict<pageInfo> pageList;
|
|
|
|
double resolution; // in dots per inch
|
|
int pixel_page_w; // in pixels
|
|
int pixel_page_h; // in pixels
|
|
|
|
TQString includePath;
|
|
|
|
// Output device that ghostscript is supposed tp use. Default is
|
|
// "png256". If that does not work, gs_generate_graphics_file will
|
|
// automatically try other known device drivers. If no known output
|
|
// device can be found, something is badly wrong. In that case,
|
|
// "gsDevice" is set to an empty string, and
|
|
// gs_generate_graphics_file will return immediately.
|
|
TQValueListIterator<TQString> gsDevice;
|
|
|
|
// A list of known devices, set by the constructor. This includes
|
|
// "png256", "pnm". If a device is found to not work, its name is
|
|
// removed from the list, and another device name is tried.
|
|
TQStringList knownDevices;
|
|
|
|
signals:
|
|
/** Passed through to the top-level kpart. */
|
|
void setStatusBarText( const TQString& );
|
|
};
|
|
|
|
#endif
|