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//
// "$Id: HelpView.h 5860 2007-05-30 18:32:26Z sanel.z $"
//
// Help Viewer widget definitions.
//
// Copyright 1997-2006 by Easy Software Products.
// Image support donated by Matthias Melcher, Copyright 2000.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
#ifndef HelpView_H
# define HelpView_H
//
// Include necessary header files...
//
# include <stdio.h>
# include <fltk/Group.h>
# include <fltk/Scrollbar.h>
# include <fltk/draw.h>
# include <fltk/SharedImage.h>
namespace fltk {
//
// HelpFunc type - link callback function for files...
//
typedef const char *(HelpFunc) (Widget *, const char *);
//
// HelpBlock structure...
//
struct HelpBlock {
const char *start, // Start of text
*end; // End of text
uchar border; // Draw border?
Color bgcolor; // Background color
int x, // Indentation/starting X coordinate
y, // Starting Y coordinate
w, // Width
h; // Height
int line[32]; // Left starting position for each line
};
//
// HelpLink structure...
//
struct HelpLink {
char filename[192], // Reference filename
name[32]; // Link target (blank if none)
int x, // X offset of link text
y, // Y offset of link text
w, // Width of link text
h; // Height of link text
};
//
// HelpTarget structure...
//
struct HelpTarget {
char name[32]; // Target name
int y; // Y offset of target
};
//
// HelpView class...
//
class FL_API HelpView : public Group //// Help viewer widget
{
enum { RIGHT = -1, CENTER, LEFT }; // Alignments
char title_[1024]; // Title string
Color defcolor_, // Default text color
bgcolor_, // Background color
textcolor_, // Text color
linkcolor_; // Link color
Font *textfont_; // Default font for text
int textsize_; // Default font size
const char *value_; // HTML text value
int nblocks_, // Number of blocks/paragraphs
ablocks_; // Allocated blocks
HelpBlock *blocks_; // Blocks
int nfonts_; // Number of fonts in stack
Font *fonts_[100]; // Font stack
int fontsizes_[100];
HelpFunc *link_; // Link transform function
int nlinks_, // Number of links
alinks_; // Allocated links
HelpLink *links_; // Links
int ntargets_, // Number of targets
atargets_; // Allocated targets
HelpTarget *targets_; // Targets
char directory_[1024]; // Directory for current file
char filename_[1024]; // Current filename
int topline_, // Top line in document
leftline_, // Lefthand position
size_, // Total document length
hsize_; // Maximum document width
Scrollbar *scrollbar_, // Vertical scrollbar for document
*hscrollbar_; // Horizontal scrollbar
HelpBlock *add_block (const char *s, int xx, int yy, int ww, int hh,
uchar border = 0);
void add_link (const char *n, int xx, int yy, int ww, int hh);
void add_target (const char *n, int yy);
static int compare_targets (const HelpTarget * t0,
const HelpTarget * t1);
int do_align (HelpBlock * block, int line, int xx, int a, int &l);
void write_text (const char * buf, const char * ptr, int X, int Y, int X1, int underline);
void draw ();
void format ();
void format_table (int *table_width, int *columns, const char *table);
int get_align (const char *p, int a);
const char *get_attr (const char *p, const char *n, char *buf, int bufsize);
Color get_color (const char *n, Color c);
SharedImage *get_image (const char *name, int W, int H);
int get_length (const char *l);
int handle (int);
void initfont (Font *&f, int &s);
void pushfont (Font *f, int s);
void popfont (Font *&f, int &s);
public:
HelpView (int xx, int yy, int ww, int hh, const char *l = 0);
~HelpView ();
const char *directory () const {
if (directory_[0])
return (directory_);
else
return ((const char *) 0);
}
const char *filename () const {
if (filename_[0])
return (filename_);
else
return ((const char *) 0);
} void link (HelpFunc * fn) {
link_ = fn;
}
int load (const char *f);
void layout();
int size () const { return (size_); }
void textcolor (Color c);
void textfont (Font *f);
void textsize (int s);
Color textcolor () const { return (defcolor_); }
Font *textfont () const { return (textfont_); }
int textsize () const { return (textsize_); }
const char *title () { return (title_); }
void topline (const char *n);
void topline (int);
int topline () const { return (topline_); }
void leftline (int);
int leftline () const { return (leftline_); }
void value (const char *v);
const char *value () const { return (value_); }
int find (const char *s,int p);
};
} // namespace fltk
#endif // !HelpView_H
//
// End of "$Id: HelpView.h 5860 2007-05-30 18:32:26Z sanel.z $".
//
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