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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7675 a592a061-630c-0410-9148-cb99ea01b6c8
72 lines
1.5 KiB
C++
72 lines
1.5 KiB
C++
// -*- C++ -*-
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/**
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* \file xscreen.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author unknown
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef XSCREEN_H
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#define XSCREEN_H
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#include "screen.h"
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#include <X11/Xlib.h> // for Pixmap, GC
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class WorkArea;
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class XWorkArea;
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/** The class XScreen is used for the main Textbody.
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Concretely, the screen is held in a pixmap. This pixmap is kept up to
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date and used to optimize drawing on the screen.
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This class also handles the drawing of the cursor and partly the selection.
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*/
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class XScreen : public LyXScreen {
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public:
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///
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XScreen(XWorkArea &);
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///
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virtual ~XScreen();
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/// Sets the cursor color to LColor::cursor.
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virtual void setCursorColor();
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protected:
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/// get the work area
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virtual WorkArea & workarea() const;
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/// Copies specified area of pixmap to screen
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virtual void expose(int x, int y, int w, int h);
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/// paint the cursor and store the background
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virtual void showCursor(int x, int y, int h, Cursor_Shape shape);
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/// hide the cursor
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virtual void removeCursor();
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private:
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/// our owning widget
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XWorkArea & owner_;
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/// backing pixmap for cursor
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Pixmap nocursor_pixmap_;
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/// x of backing pixmap
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int cursor_x_;
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/// y of backing pixmap
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int cursor_y_;
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/// width of backing pixmap
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int cursor_w_;
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/// height of backing pixmap
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int cursor_h_;
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/// cursor cs
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GC gc_copy;
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};
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#endif
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