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/* $Id: ntext.h,v 1.14 2008/02/22 00:57:18 bergo Exp $ */
/*
eboard - chess client
http://eboard.sourceforge.net
Copyright (C) 2000-2008 Felipe Paulo Guazzi Bergo
bergo@seul.org
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef NTEXT_H
#define NTEXT_H 1
#include "widgetproxy.h"
#include "stl.h"
// line index
class NLine {
public:
NLine();
NLine(const char *text, int color, int maxlen=-1);
virtual ~NLine();
char *Text;
int NBytes;
int Color;
int Width;
time_t Timestamp;
};
// secondary line index
class FLine : public NLine {
public:
FLine();
FLine(const char *text, int color, int maxlen=-1, time_t stamp=0);
FLine(NLine *src);
void setSource(int src,int off);
int Src,Off;
int X,Y,H; // position of last rendering
bool valid; // visible ?
char stamp[12];
private:
void makeStamp();
};
// a point in the text (a selection has two of this)
class TPoint {
public:
TPoint();
TPoint &operator=(TPoint &src);
int operator<(TPoint &src);
int operator>(TPoint &src);
int operator==(TPoint &src);
int operator<(int i);
int operator<=(int i);
int operator>(int i);
int operator>=(int i);
int operator==(int i);
int LineNum, ByteOffset;
};
// a decent text buffer widget
class NText : public WidgetProxy {
public:
NText();
virtual ~NText();
void setFont(const char *font);
void append(const char *text, int len, int color);
void pageUp(float pages);
void pageDown(float pages);
void lineUp(int n);
void lineDown(int n);
void gotoLine(int n);
void setScrollBack(int n);
void setBG(int c);
bool findTextUpward(int top, int bottom, const char *needle,
bool select=true);
int getLastFoundLine();
bool saveTextBuffer(const char *path);
virtual void repaint();
void scheduleRepaint(int latency=100);
private:
void createGui();
void formatLine(unsigned int i);
void formatBuffer();
void setScroll(int topline, int linecount, int nlines);
void discardLines(int n);
void discardExcess(bool _repaint=false);
bool calcTP(TPoint &t, int x,int y);
bool matchTextInLine(int i, const char *needle, bool select=true);
void selectRegion(int startline,int startoff,int endline,int endoff);
void freeOldSelections();
deque<NLine *> lines;
deque<FLine *> xlines;
stack<char *> prevsel;
int bgcolor;
GtkWidget *body, *sb;
GtkAdjustment *vsa;
GdkPixmap *canvas;
GdkGC *cgc;
int cw, ch, lw, lh, fmtw;
int fh;
int leftb, rightb, tsskip;
LayoutBox L;
int IgnoreChg;
unsigned int MaxLines;
bool WasAtBottom;
/* selection handling */
bool havesel;
TPoint A,B; // selection end points
int dropmup;
int toid;
int lfl;
/* the usual callback friends */
friend gboolean ntext_expose(GtkWidget *widget, GdkEventExpose *ee,
gpointer data);
friend gboolean ntext_configure(GtkWidget *widget, GdkEventConfigure *ee,
gpointer data);
friend void ntext_sbchange(GtkAdjustment *adj, gpointer data);
friend gboolean ntext_mdown(GtkWidget *widget, GdkEventButton *eb,
gpointer data);
friend gboolean ntext_mup(GtkWidget *widget, GdkEventButton *eb,
gpointer data);
friend gboolean ntext_mdrag(GtkWidget *widget, GdkEventMotion *em,
gpointer data);
friend gboolean ntext_scroll(GtkWidget *widget, GdkEventScroll *es,
gpointer data);
friend gboolean ntext_ksel(GtkWidget * widget,
GdkEventSelection * event, gpointer data);
friend void ntext_getsel(GtkWidget * widget,
GtkSelectionData * seldata,
guint info, guint time, gpointer data);
friend gboolean ntext_redraw(gpointer data);
};
gboolean ntext_expose(GtkWidget *widget, GdkEventExpose *ee,
gpointer data);
gboolean ntext_configure(GtkWidget *widget, GdkEventConfigure *ee,
gpointer data);
void ntext_sbchange(GtkAdjustment *adj, gpointer data);
gboolean ntext_mdown(GtkWidget *widget, GdkEventButton *eb,
gpointer data);
gboolean ntext_mup(GtkWidget *widget, GdkEventButton *eb,
gpointer data);
gboolean ntext_mdrag(GtkWidget *widget, GdkEventMotion *em,
gpointer data);
gboolean ntext_scroll(GtkWidget *widget, GdkEventScroll *es,
gpointer data);
gboolean ntext_ksel(GtkWidget * widget,
GdkEventSelection * event, gpointer data);
void ntext_getsel(GtkWidget * widget,
GtkSelectionData * seldata,
guint info, guint time, gpointer data);
gboolean ntext_redraw(gpointer data);
#endif
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