lyx_mirror/src/frontends/gtk/GWorkArea.h
Alfredo Braunstein 47aecd3178 John Spray's gtk scrolling patch
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9002 a592a061-630c-0410-9148-cb99ea01b6c8
2004-09-24 06:32:22 +00:00

121 lines
2.8 KiB
C++

// -*- C++ -*-
/**
* \file GWorkArea.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Huang Ying
*
* Full author contact details are available in file CREDITS.
*/
#ifndef GWORKAREA_H
#define GWORKAREA_H
#include "GPainter.h"
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
#include "frontends/WorkArea.h"
#include <X11/Xft/Xft.h>
class LColor_color;
class LyXView;
namespace lyx {
namespace frontend {
class ColorCache
{
typedef std::map<LColor_color, Gdk::Color *> Map;
typedef Map::iterator MapIt;
typedef std::map<LColor_color, XftColor *> Map2;
typedef Map2::iterator MapIt2;
public:
~ColorCache();
Gdk::Color * getColor(LColor_color);
XftColor * getXftColor(LColor_color);
void cacheColor(LColor_color, Gdk::Color *);
void cacheXftColor(LColor_color, XftColor *);
void clear();
private:
Map cache_;
Map2 cache2_;
};
extern ColorCache colorCache;
class ColorHandler
{
public:
ColorHandler(GWorkArea& owner) : owner_(owner) {}
XftColor * getXftColor(LColor_color clr);
Gdk::Color * getGdkColor(LColor_color clr);
private:
GWorkArea & owner_;
};
class GWorkArea : public WorkArea, public SigC::Object
{
public:
GWorkArea(LyXView & owner, int width, int height);
~GWorkArea();
virtual Painter & getPainter();
///
virtual int workWidth() const;
///
virtual int workHeight() const;
/// return x position of window
int xpos() const;
/// return y position of window
int ypos() const;
///
Glib::RefPtr<Gdk::Window> getWindow();
Display * getDisplay() const;
Glib::RefPtr<Gdk::Pixmap> getPixmap();
Glib::RefPtr<Gdk::GC> getGC();
Glib::RefPtr<Gdk::Colormap> getColormap();
XftDraw * getXftDraw();
ColorHandler & getColorHandler();
virtual void setScrollbarParams(int height, int pos, int line_height);
/// a selection exists
virtual void haveSelection(bool) const;
///
virtual std::string const getClipboard() const;
///
virtual void putClipboard(std::string const &) const;
void inputCommit(gchar * str);
private:
bool onExpose(GdkEventExpose * event);
bool onConfigure(GdkEventConfigure * event);
void onScroll();
bool onScrollWheel(GdkEventScroll * event);
bool onButtonPress(GdkEventButton * event);
bool onButtonRelease(GdkEventButton * event);
bool onMotionNotify(GdkEventMotion * event);
bool onKeyPress(GdkEventKey * event);
void onClipboardGet(Gtk::SelectionData& selection_data, guint info);
void onClipboardClear();
Gtk::HBox hbox_;
Gtk::DrawingArea workArea_;
Gtk::VScrollbar vscrollbar_;
/// The pixmap overlay on the workarea
Glib::RefPtr<Gdk::Pixmap> workAreaPixmap_;
Glib::RefPtr<Gdk::GC> workAreaGC_;
/// the xforms-specific painter
GPainter painter_;
XftDraw * draw_;
ColorHandler colorHandler_;
GtkIMContext * imContext_;
std::string inputCache_;
};
} // namespace frontend
} // namespace lyx
#endif