mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-09-21 15:18:45 +00:00
7cb3b05491
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2179 a592a061-630c-0410-9148-cb99ea01b6c8
131 lines
3.0 KiB
C++
131 lines
3.0 KiB
C++
// -*- C++ -*-
|
|
/* This file is part of
|
|
* ======================================================
|
|
*
|
|
* LyX, The Document Processor
|
|
*
|
|
* Copyright 1995 Matthias Ettrich
|
|
* Copyright 1995-2001 The LyX Team
|
|
*
|
|
* ====================================================== */
|
|
|
|
#ifndef LYXSCREEN_H
|
|
#define LYXSCREEN_H
|
|
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
class LyXText;
|
|
class WorkArea;
|
|
class Buffer;
|
|
class BufferView;
|
|
|
|
struct Row;
|
|
|
|
///
|
|
typedef unsigned short Dimension;
|
|
|
|
|
|
/** The class LyXScreen is used for the main Textbody.
|
|
Concretely, the screen is held in a pixmap. This pixmap is kept up to
|
|
date and used to optimize drawing on the screen.
|
|
This class also handles the drawing of the cursor and partly the selection.
|
|
*/
|
|
class LyXScreen {
|
|
public:
|
|
///
|
|
enum Cursor_Shape {
|
|
///
|
|
BAR_SHAPE,
|
|
///
|
|
L_SHAPE,
|
|
///
|
|
REVERSED_L_SHAPE
|
|
};
|
|
|
|
///
|
|
LyXScreen(WorkArea &);
|
|
|
|
///
|
|
~LyXScreen();
|
|
|
|
/// Sets the cursor color to LColor::cursor.
|
|
void setCursorColor();
|
|
|
|
/** Draws the screen form textposition y. Uses as much of
|
|
the already printed pixmap as possible */
|
|
void draw(LyXText *, BufferView *, unsigned int y);
|
|
|
|
/// Redraws the screen, without using existing pixmap
|
|
void redraw(LyXText *, BufferView *);
|
|
|
|
/// Returns a new top so that the cursor is visible
|
|
unsigned int topCursorVisible(LyXText const *);
|
|
/// Redraws the screen such that the cursor is visible
|
|
bool fitCursor(LyXText *, BufferView *);
|
|
///
|
|
void showCursor(LyXText const *, BufferView const *);
|
|
///
|
|
void hideCursor();
|
|
///
|
|
void cursorToggle(LyXText const *, BufferView const *);
|
|
///
|
|
void showManualCursor(LyXText const *, int x, int y,
|
|
int asc, int desc,
|
|
Cursor_Shape shape);
|
|
/// returns 1 if first has changed, otherwise 0
|
|
bool fitManualCursor(LyXText *, BufferView *, int, int, int, int);
|
|
///
|
|
void toggleSelection(LyXText *, BufferView *, bool = true,
|
|
int y_offset = 0, int x_offset = 0);
|
|
///
|
|
void toggleToggle(LyXText *, BufferView *,
|
|
int y_offset = 0, int x_offset = 0);
|
|
|
|
/** Updates part of the screen. If text->status is
|
|
LyXText::NEED_MORE_REFRESH, we update from the
|
|
point of change and to the end of the screen.
|
|
If text->status is LyXText::NEED_VERY_LITTLE_REFRESH,
|
|
we only update the current row. */
|
|
void update(LyXText *, BufferView *, int y_offset=0, int x_offset=0);
|
|
///
|
|
bool forceClear() const { return force_clear; }
|
|
|
|
///
|
|
bool cursor_visible;
|
|
private:
|
|
/// Copies specified area of pixmap to screen
|
|
void expose(int x, int y, int exp_width, int exp_height);
|
|
|
|
/// y1 and y2 are coordinates of the screen
|
|
void drawFromTo(LyXText *, BufferView *, int y1, int y2,
|
|
int y_offset = 0, int x_offset = 0);
|
|
|
|
/// y is a coordinate of the text
|
|
void drawOneRow(LyXText *, BufferView *, Row * row,
|
|
int y_text, int y_offset = 0, int x_offset = 0);
|
|
|
|
///
|
|
WorkArea & owner;
|
|
|
|
///
|
|
Pixmap cursor_pixmap;
|
|
///
|
|
int cursor_pixmap_x;
|
|
///
|
|
int cursor_pixmap_y;
|
|
///
|
|
int cursor_pixmap_w;
|
|
///
|
|
int cursor_pixmap_h;
|
|
///
|
|
GC gc_copy;
|
|
///
|
|
bool force_clear;
|
|
};
|
|
|
|
#endif
|