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//
// "$Id: HelpView.h,v 1.9 2000/01/22 15:21:08 mike Exp $"
//
// Help Viewer widget definitions.
//
// Copyright 1997-2000 by Easy Software Products.
//
// These coded instructions, statements, and computer programs are the
// property of Easy Software Products and are protected by Federal
// copyright law. Distribution and use rights are outblockd in the file
// "COPYING" which should have been included with this file. If this
// file is missing or damaged please contact Easy Software Products
// at:
//
// Attn: ESP Licensing Information
// Easy Software Products
// 44141 Airport View Drive, Suite 204
// Hollywood, Maryland 20636-3111 USA
//
// Voice: (301) 373-9600
// EMail: info@easysw.com
// WWW: http://www.easysw.com
//
#ifndef _GUI_HELPVIEW_H_
# define _GUI_HELPVIEW_H_
//
// Include necessary header files...
//
# include <FL/Fl.H>
# include <FL/Fl_Group.H>
# include <FL/Fl_Scrollbar.H>
# include <FL/fl_draw.H>
//
// HelpFunc type - link callback function for files...
//
typedef const char *(HelpFunc)(const char *);
//
// HelpBlock structure...
//
struct HelpBlock
{
const char *start, // Start of text
*end; // End of text
uchar font, // Text font
size, // Text size
border; // Draw border?
short x, // Indentation/starting X coordinate
y, // Starting Y coordinate
w, // Width
h; // Height
short 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 HelpView : public Fl_Group //// Help viewer widget
{
enum { RIGHT = -1, CENTER, LEFT }; // Alignments
char title_[1024]; // Title string
Fl_Color defcolor_, // Default text color
bgcolor_, // Background color
textcolor_, // Text color
linkcolor_; // Link color
uchar textfont_, // Default font for text
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
uchar fonts_[100][2]; // Font stack
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
size_; // Total document length
Fl_Scrollbar scrollbar_; // Scrollbar for document
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 draw();
void format();
int get_align(const char *p, int a);
const char *get_attr(const char *p, const char *n, char *buf, int bufsize);
Fl_Color get_color(const char *n, Fl_Color c);
int handle(int);
void initfont(uchar &f, uchar &s) { nfonts_ = 0;
fl_font(f = fonts_[0][0] = textfont_,
s = fonts_[0][1] = textsize_); }
void pushfont(uchar f, uchar s) { if (nfonts_ < 99) nfonts_ ++;
fl_font(fonts_[nfonts_][0] = f,
fonts_[nfonts_][1] = s); }
void popfont(uchar &f, uchar &s) { if (nfonts_ > 0) nfonts_ --;
fl_font(f = fonts_[nfonts_][0],
s = fonts_[nfonts_][1]); }
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 resize(int,int,int,int);
int size() const { return (size_); }
void textcolor(Fl_Color c) { if (textcolor_ == defcolor_) textcolor_ = c; defcolor_ = c; }
Fl_Color textcolor() const { return (defcolor_); }
void textfont(uchar f) { textfont_ = f; format(); }
uchar textfont() const { return (textfont_); }
void textsize(uchar s) { textsize_ = s; format(); }
uchar textsize() const { return (textsize_); }
const char *title() { return (title_); }
void topline(const char *n);
void topline(int);
int topline() const { return (topline_); }
void value(const char *v);
const char *value() const { return (value_); }
};
#endif // !_GUI_HELPVIEW_H_
//
// End of "$Id: HelpView.h,v 1.9 2000/01/22 15:21:08 mike Exp $".
//
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