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diff --git a/SrcUnix/espws-2.0/HelpView.cxx b/SrcUnix/espws-2.0/HelpView.cxx
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+//
+// "$Id: HelpView.cxx,v 1.22 2000/03/19 23:27:14 mike Exp $"
+//
+// Help Viewer widget routines.
+//
+// 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
+//
+// Contents:
+//
+// HelpView::add_block() - Add a text block to the list.
+// HelpView::add_link() - Add a new link to the list.
+// HelpView::add_target() - Add a new target to the list.
+// HelpView::compare_targets() - Compare two targets.
+// HelpView::do_align() - Compute the alignment for a line in a block.
+// HelpView::draw() - Draw the HelpView widget.
+// HelpView::format() - Format the help text.
+// HelpView::get_align() - Get an alignment attribute.
+// HelpView::get_attr() - Get an attribute value from the string.
+// HelpView::get_color() - Get an alignment attribute.
+// HelpView::handle() - Handle events in the widget.
+// HelpView::HelpView() - Build a HelpView widget.
+// HelpView::~HelpView() - Destroy a HelpView widget.
+// HelpView::load() - Load the specified file.
+// HelpView::resize() - Resize the help widget.
+// HelpView::topline() - Set the top line to the named target.
+// HelpView::topline() - Set the top line by number.
+// HelpView::value() - Set the help text directly.
+// scrollbar_callback() - A callback for the scrollbar.
+//
+
+//
+// Include necessary header files...
+//
+
+#include "HelpView.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+
+#if defined(WIN32)
+# include <io.h>
+# include <direct.h>
+# define strcasecmp(s,t) stricmp((s), (t))
+# define strncasecmp(s,t,n) strnicmp((s), (t), (n))
+#elif defined(__EMX__)
+# define strcasecmp(s,t) stricmp((s), (t))
+# define strncasecmp(s,t,n) strnicmp((s), (t), (n))
+#else
+# include <unistd.h>
+#endif // WIN32
+
+
+//
+// Local functions...
+//
+
+static void scrollbar_callback(Fl_Widget *s, void *);
+
+
+//
+// 'HelpView::add_block()' - Add a text block to the list.
+//
+
+HelpBlock * // O - Pointer to new block
+HelpView::add_block(const char *s, // I - Pointer to start of block text
+ int xx, // I - X position of block
+ int yy, // I - Y position of block
+ int ww, // I - Right margin of block
+ int hh, // I - Height of block
+ uchar border) // I - Draw border?
+{
+ HelpBlock *temp; // New block
+
+
+ if (nblocks_ >= ablocks_)
+ {
+ ablocks_ += 16;
+
+ if (ablocks_ == 16)
+ blocks_ = (HelpBlock *)malloc(sizeof(HelpBlock) * ablocks_);
+ else
+ blocks_ = (HelpBlock *)realloc(blocks_, sizeof(HelpBlock) * ablocks_);
+ }
+
+ temp = blocks_ + nblocks_;
+ temp->start = s;
+ temp->x = xx;
+ temp->y = yy;
+ temp->w = ww;
+ temp->h = hh;
+ temp->border = border;
+ nblocks_ ++;
+
+ return (temp);
+}
+
+
+//
+// 'HelpView::add_link()' - Add a new link to the list.
+//
+
+void
+HelpView::add_link(const char *n, // I - Name of link
+ int xx, // I - X position of link
+ int yy, // I - Y position of link
+ int ww, // I - Width of link text
+ int hh) // I - Height of link text
+{
+ HelpLink *temp; // New link
+ char *target; // Pointer to target name
+
+
+ if (nlinks_ >= alinks_)
+ {
+ alinks_ += 16;
+
+ if (alinks_ == 16)
+ links_ = (HelpLink *)malloc(sizeof(HelpLink) * alinks_);
+ else
+ links_ = (HelpLink *)realloc(links_, sizeof(HelpLink) * alinks_);
+ }
+
+ temp = links_ + nlinks_;
+
+ temp->x = xx;
+ temp->y = yy;
+ temp->w = xx + ww;
+ temp->h = yy + hh;
+
+ strncpy(temp->filename, n, sizeof(temp->filename));
+ temp->filename[sizeof(temp->filename) - 1] = '\0';
+
+ if ((target = strrchr(temp->filename, '#')) != NULL)
+ {
+ *target++ = '\0';
+ strncpy(temp->name, target, sizeof(temp->name));
+ temp->name[sizeof(temp->name) - 1] = '\0';
+ }
+ else
+ temp->name[0] = '\0';
+
+ nlinks_ ++;
+}
+
+
+//
+// 'HelpView::add_target()' - Add a new target to the list.
+//
+
+void
+HelpView::add_target(const char *n, // I - Name of target
+ int yy) // I - Y position of target
+{
+ HelpTarget *temp; // New target
+
+
+ if (ntargets_ >= atargets_)
+ {
+ atargets_ += 16;
+
+ if (atargets_ == 16)
+ targets_ = (HelpTarget *)malloc(sizeof(HelpTarget) * atargets_);
+ else
+ targets_ = (HelpTarget *)realloc(targets_, sizeof(HelpTarget) * atargets_);
+ }
+
+ temp = targets_ + ntargets_;
+
+ temp->y = yy;
+ strncpy(temp->name, n, sizeof(temp->name));
+ temp->name[sizeof(temp->name) - 1] = '\0';
+
+ ntargets_ ++;
+}
+
+
+//
+// 'HelpView::compare_targets()' - Compare two targets.
+//
+
+int // O - Result of comparison
+HelpView::compare_targets(const HelpTarget *t0, // I - First target
+ const HelpTarget *t1) // I - Second target
+{
+ return (strcasecmp(t0->name, t1->name));
+}
+
+
+//
+// 'HelpView::do_align()' - Compute the alignment for a line in a block.
+//
+
+int // O - New line
+HelpView::do_align(HelpBlock *block, // I - Block to add to
+ int line, // I - Current line
+ int xx, // I - Current X position
+ int a, // I - Current alignment
+ int &l) // IO - Starting link
+{
+ int offset; // Alignment offset
+
+
+ switch (a)
+ {
+ case RIGHT : // Right align
+ offset = block->w - xx;
+ break;
+ case CENTER : // Center
+ offset = (block->w - xx) / 2;
+ break;
+ case LEFT : // Left align
+ offset = 0;
+ break;
+ }
+
+ block->line[line] = block->x + offset;
+
+ if (line < 31)
+ line ++;
+
+ while (l < nlinks_)
+ {
+ links_[l].x += offset;
+ links_[l].w += offset;
+ l ++;
+ }
+
+ return (line);
+}
+
+
+//
+// 'HelpView::draw()' - Draw the HelpView widget.
+//
+
+void
+HelpView::draw()
+{
+ int i; // Looping var
+ const HelpBlock *block; // Pointer to current block
+ const char *ptr, // Pointer to text in block
+ *attrs; // Pointer to start of element attributes
+ char *s, // Pointer into buffer
+ buf[1024], // Text buffer
+ attr[1024]; // Attribute buffer
+ int xx, yy, ww, hh; // Current positions and sizes
+ int line; // Current line
+ uchar font, size; // Current font and size
+ int head, pre, // Flags for text
+ needspace; // Do we need whitespace?
+ Fl_Boxtype b = box() ? box() : FL_DOWN_BOX;
+ // Box to draw...
+ Fl_Color tc, c; // Table/cell background color
+
+
+ // Draw the scrollbar and box first...
+ if (scrollbar_.visible())
+ {
+ draw_child(scrollbar_);
+ draw_box(b, x(), y(), w() - 17, h(), bgcolor_);
+ }
+ else
+ draw_box(b, x(), y(), w(), h(), bgcolor_);
+
+ if (!value_)
+ return;
+
+ // Clip the drawing to the inside of the box...
+ fl_push_clip(x() + 4, y() + 4, w() - 28, h() - 8);
+ fl_color(textcolor_);
+
+ tc = c = bgcolor_;
+
+ // Draw all visible blocks...
+ for (i = 0, block = blocks_; i < nblocks_ && (block->y - topline_) < h(); i ++, block ++)
+ if ((block->y + block->h) >= topline_)
+ {
+ line = 0;
+ xx = block->line[line];
+ yy = block->y - topline_;
+ hh = 0;
+ pre = 0;
+ head = 0;
+ needspace = 0;
+
+ initfont(font, size);
+
+ for (ptr = block->start, s = buf; ptr < block->end;)
+ {
+ if ((*ptr == '<' || isspace(*ptr)) && s > buf)
+ {
+ if (!head && !pre)
+ {
+ // Check width...
+ *s = '\0';
+ s = buf;
+ ww = (int)fl_width(buf);
+
+ if (needspace && xx > block->x)
+ xx += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = 0;
+ }
+
+ fl_draw(buf, xx + x(), yy + y());
+
+ xx += ww;
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ needspace = 0;
+ }
+ else if (pre)
+ {
+ while (isspace(*ptr))
+ {
+ if (*ptr == '\n')
+ {
+ *s = '\0';
+ s = buf;
+
+ fl_draw(buf, xx + x(), yy + y());
+
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = size + 2;
+ }
+ else if (*ptr == '\t')
+ {
+ // Do tabs every 8 columns...
+ while (((s - buf) & 7))
+ *s++ = ' ';
+ }
+ else
+ *s++ = ' ';
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ ptr ++;
+ }
+
+ if (s > buf)
+ {
+ *s = '\0';
+ s = buf;
+
+ fl_draw(buf, xx + x(), yy + y());
+ xx += (int)fl_width(buf);
+ }
+
+ needspace = 0;
+ }
+ else
+ {
+ s = buf;
+
+ while (isspace(*ptr))
+ ptr ++;
+ }
+ }
+
+ if (*ptr == '<')
+ {
+ ptr ++;
+ while (*ptr && *ptr != '>' && !isspace(*ptr))
+ if (s < (buf + sizeof(buf) - 1))
+ *s++ = *ptr++;
+ else
+ ptr ++;
+
+ *s = '\0';
+ s = buf;
+
+ attrs = ptr;
+ while (*ptr && *ptr != '>')
+ ptr ++;
+
+ if (*ptr == '>')
+ ptr ++;
+
+ if (strcasecmp(buf, "HEAD") == 0)
+ head = 1;
+ else if (strcasecmp(buf, "BR") == 0)
+ {
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = 0;
+ }
+ else if (strcasecmp(buf, "HR") == 0)
+ {
+ fl_line(block->x + x(), yy + y(), block->w + x(),
+ yy + y());
+
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += 2 * hh;
+ hh = 0;
+ }
+ else if (strcasecmp(buf, "CENTER") == 0 ||
+ strcasecmp(buf, "P") == 0 ||
+ strcasecmp(buf, "H1") == 0 ||
+ strcasecmp(buf, "H2") == 0 ||
+ strcasecmp(buf, "H3") == 0 ||
+ strcasecmp(buf, "H4") == 0 ||
+ strcasecmp(buf, "H5") == 0 ||
+ strcasecmp(buf, "H6") == 0 ||
+ strcasecmp(buf, "UL") == 0 ||
+ strcasecmp(buf, "OL") == 0 ||
+ strcasecmp(buf, "DL") == 0 ||
+ strcasecmp(buf, "LI") == 0 ||
+ strcasecmp(buf, "DD") == 0 ||
+ strcasecmp(buf, "DT") == 0 ||
+ strcasecmp(buf, "PRE") == 0)
+ {
+ if (tolower(buf[0]) == 'h')
+ {
+ font = FL_HELVETICA_BOLD;
+ size = textsize_ + '7' - buf[1];
+ }
+ else if (strcasecmp(buf, "DT") == 0)
+ {
+ font = textfont_ | FL_ITALIC;
+ size = textsize_;
+ }
+ else if (strcasecmp(buf, "PRE") == 0)
+ {
+ font = FL_COURIER;
+ size = textsize_;
+ pre = 1;
+ }
+
+ if (strcasecmp(buf, "LI") == 0)
+ {
+ fl_font(FL_SYMBOL, size);
+ fl_draw("\267", xx - size + x(), yy + y());
+ }
+
+ pushfont(font, size);
+
+ if (c != bgcolor_)
+ {
+ fl_color(c);
+ fl_rectf(block->x + x() - 4,
+ block->y - topline_ + y() - size - 3,
+ block->w - block->x + 7, block->h + size - 5);
+ fl_color(textcolor_);
+ }
+ }
+ else if (strcasecmp(buf, "A") == 0 &&
+ get_attr(attrs, "HREF", attr, sizeof(attr)) != NULL)
+ fl_color(linkcolor_);
+ else if (strcasecmp(buf, "/A") == 0)
+ fl_color(textcolor_);
+ else if (strcasecmp(buf, "B") == 0)
+ pushfont(font |= FL_BOLD, size);
+ else if (strcasecmp(buf, "TABLE") == 0)
+ tc = get_color(get_attr(attrs, "BGCOLOR", attr, sizeof(attr)), bgcolor_);
+ else if (strcasecmp(buf, "TD") == 0 ||
+ strcasecmp(buf, "TH") == 0)
+ {
+ if (tolower(buf[1]) == 'h')
+ pushfont(font |= FL_BOLD, size);
+ else
+ pushfont(font = textfont_, size);
+
+ c = get_color(get_attr(attrs, "BGCOLOR", attr, sizeof(attr)), tc);
+
+ if (c != bgcolor_)
+ {
+ fl_color(c);
+ fl_rectf(block->x + x() - 4,
+ block->y - topline_ + y() - size - 3,
+ block->w - block->x + 7, block->h + size - 5);
+ fl_color(textcolor_);
+ }
+
+ if (block->border)
+ fl_rect(block->x + x() - 4,
+ block->y - topline_ + y() - size - 3,
+ block->w - block->x + 7, block->h + size - 5);
+ }
+ else if (strcasecmp(buf, "I") == 0)
+ pushfont(font |= FL_ITALIC, size);
+ else if (strcasecmp(buf, "CODE") == 0)
+ pushfont(font = FL_COURIER, size);
+ else if (strcasecmp(buf, "KBD") == 0)
+ pushfont(font = FL_COURIER_BOLD, size);
+ else if (strcasecmp(buf, "VAR") == 0)
+ pushfont(font = FL_COURIER_ITALIC, size);
+ else if (strcasecmp(buf, "/HEAD") == 0)
+ head = 0;
+ else if (strcasecmp(buf, "/H1") == 0 ||
+ strcasecmp(buf, "/H2") == 0 ||
+ strcasecmp(buf, "/H3") == 0 ||
+ strcasecmp(buf, "/H4") == 0 ||
+ strcasecmp(buf, "/H5") == 0 ||
+ strcasecmp(buf, "/H6") == 0 ||
+ strcasecmp(buf, "/B") == 0 ||
+ strcasecmp(buf, "/I") == 0 ||
+ strcasecmp(buf, "/CODE") == 0 ||
+ strcasecmp(buf, "/KBD") == 0 ||
+ strcasecmp(buf, "/VAR") == 0)
+ popfont(font, size);
+ else if (strcasecmp(buf, "/TABLE") == 0)
+ tc = c = bgcolor_;
+ else if (strcasecmp(buf, "/TD") == 0 ||
+ strcasecmp(buf, "/TH") == 0)
+ c = tc;
+ else if (strcasecmp(buf, "/PRE") == 0)
+ {
+ popfont(font, size);
+ pre = 0;
+ }
+ }
+ else if (strcasecmp(buf, "IMG") == 0 &&
+ get_attr(attrs, "ALT", attr, sizeof(attr)) != NULL)
+ {
+ // Show alt text...
+ sprintf(buf, "[%s]", attr);
+ ww = (int)fl_width(buf);
+
+ if (needspace && xx > block->x)
+ xx += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = 0;
+ }
+
+ fl_draw(buf, xx + x(), yy + y());
+
+ xx += ww;
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ needspace = 0;
+ }
+ else if (*ptr == '\n' && pre)
+ {
+ *s = '\0';
+ s = buf;
+
+ fl_draw(buf, xx + x(), yy + y());
+
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = size + 2;
+ needspace = 0;
+
+ ptr ++;
+ }
+ else if (isspace(*ptr))
+ {
+ if (pre)
+ {
+ if (*ptr == ' ')
+ *s++ = ' ';
+ else
+ {
+ // Do tabs every 8 columns...
+ while (((s - buf) & 7))
+ *s++ = ' ';
+ }
+ }
+
+ ptr ++;
+ needspace = 1;
+ }
+ else if (*ptr == '&')
+ {
+ ptr ++;
+
+ if (strncasecmp(ptr, "amp;", 4) == 0)
+ {
+ *s++ = '&';
+ ptr += 4;
+ }
+ else if (strncasecmp(ptr, "lt;", 3) == 0)
+ {
+ *s++ = '<';
+ ptr += 3;
+ }
+ else if (strncasecmp(ptr, "gt;", 3) == 0)
+ {
+ *s++ = '>';
+ ptr += 3;
+ }
+ else if (strncasecmp(ptr, "nbsp;", 5) == 0)
+ {
+ *s++ = ' ';
+ ptr += 5;
+ }
+ else if (strncasecmp(ptr, "copy;", 5) == 0)
+ {
+ *s++ = '\251';
+ ptr += 5;
+ }
+ else if (strncasecmp(ptr, "reg;", 4) == 0)
+ {
+ *s++ = '\256';
+ ptr += 4;
+ }
+ else if (strncasecmp(ptr, "quot;", 5) == 0)
+ {
+ *s++ = '\"';
+ ptr += 5;
+ }
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+ }
+ else
+ {
+ *s++ = *ptr++;
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+ }
+ }
+
+ *s = '\0';
+
+ if (s > buf && !pre && !head)
+ {
+ ww = (int)fl_width(buf);
+
+ if (needspace && xx > block->x)
+ xx += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ if (line < 31)
+ line ++;
+ xx = block->line[line];
+ yy += hh;
+ hh = 0;
+ }
+ }
+
+ if (s > buf && !head)
+ fl_draw(buf, xx + x(), yy + y());
+ }
+
+ fl_pop_clip();
+}
+
+
+//
+// 'HelpView::format()' - Format the help text.
+//
+
+void
+HelpView::format()
+{
+ HelpBlock *block, // Current block
+ *cell; // Current table cell
+ int row; // Current table row (block number)
+ const char *ptr, // Pointer into block
+ *start, // Pointer to start of element
+ *attrs; // Pointer to start of element attributes
+ char *s, // Pointer into buffer
+ buf[1024], // Text buffer
+ attr[1024], // Attribute buffer
+ link[1024]; // Link destination
+ int xx, yy, ww, hh; // Size of current text fragment
+ int line; // Current line in block
+ int links; // Links for current line
+ uchar font, size; // Current font and size
+ uchar border; // Draw border?
+ int align, // Current alignment
+ head, // In the <HEAD> section?
+ pre, // <PRE> text?
+ needspace; // Do we need whitespace?
+ int table_width; // Width of table
+ int column, // Current table column number
+ columns[200]; // Column widths
+
+
+ nblocks_ = 0;
+ nlinks_ = 0;
+ ntargets_ = 0;
+ size_ = 0;
+ bgcolor_ = color();
+ textcolor_ = textcolor();
+ linkcolor_ = selection_color();
+
+ strcpy(title_, "Untitled");
+
+ if (!value_)
+ return;
+
+ initfont(font, size);
+
+ line = 0;
+ links = 0;
+ xx = 4;
+ yy = size + 2;
+ hh = 0;
+ block = add_block(value_, xx, yy, w() - 24, 0);
+ row = 0;
+ head = 0;
+ pre = 0;
+ align = LEFT;
+ needspace = 0;
+ link[0] = '\0';
+
+ for (ptr = value_, s = buf; *ptr;)
+ {
+ if ((*ptr == '<' || isspace(*ptr)) && s > buf)
+ {
+ if (!head && !pre)
+ {
+ // Check width...
+ *s = '\0';
+ ww = (int)fl_width(buf);
+
+ if (needspace && xx > block->x)
+ ww += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ yy += hh;
+ block->h += hh;
+ hh = 0;
+ }
+
+ if (link[0])
+ add_link(link, xx, yy - size, ww, size);
+
+ xx += ww;
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ needspace = 0;
+ }
+ else if (pre)
+ {
+ // Handle preformatted text...
+ while (isspace(*ptr))
+ {
+ if (*ptr == '\n')
+ {
+ if (link[0])
+ add_link(link, xx, yy - hh, ww, hh);
+
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ yy += hh;
+ block->h += hh;
+ hh = size + 2;
+ }
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ ptr ++;
+ }
+
+ needspace = 0;
+ }
+ else
+ {
+ // Handle normal text or stuff in the <HEAD> section...
+ while (isspace(*ptr))
+ ptr ++;
+ }
+
+ s = buf;
+ }
+
+ if (*ptr == '<')
+ {
+ start = ptr;
+ ptr ++;
+ while (*ptr && *ptr != '>' && !isspace(*ptr))
+ if (s < (buf + sizeof(buf) - 1))
+ *s++ = *ptr++;
+ else
+ ptr ++;
+
+ *s = '\0';
+ s = buf;
+
+ attrs = ptr;
+ while (*ptr && *ptr != '>')
+ ptr ++;
+
+ if (*ptr == '>')
+ ptr ++;
+
+ if (strcasecmp(buf, "HEAD") == 0)
+ head = 1;
+ else if (strcasecmp(buf, "/HEAD") == 0)
+ head = 0;
+ else if (strcasecmp(buf, "TITLE") == 0)
+ {
+ // Copy the title in the document...
+ for (s = title_;
+ *ptr != '<' && *ptr && s < (title_ + sizeof(title_) - 1);
+ *s++ = *ptr++);
+
+ *s = '\0';
+ s = buf;
+ }
+ else if (strcasecmp(buf, "A") == 0)
+ {
+ if (get_attr(attrs, "NAME", attr, sizeof(attr)) != NULL)
+ add_target(attr, yy - size - 2);
+ else if (get_attr(attrs, "HREF", attr, sizeof(attr)) != NULL)
+ {
+ strncpy(link, attr, sizeof(link) - 1);
+ link[sizeof(link) - 1] = '\0';
+ }
+ }
+ else if (strcasecmp(buf, "/A") == 0)
+ link[0] = '\0';
+ else if (strcasecmp(buf, "BODY") == 0)
+ {
+ bgcolor_ = get_color(get_attr(attrs, "BGCOLOR", attr, sizeof(attr)),
+ color());
+ textcolor_ = get_color(get_attr(attrs, "TEXT", attr, sizeof(attr)),
+ textcolor());
+ linkcolor_ = get_color(get_attr(attrs, "LINK", attr, sizeof(attr)),
+ selection_color());
+ }
+ else if (strcasecmp(buf, "BR") == 0)
+ {
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ block->h += hh;
+ yy += hh;
+ hh = 0;
+ }
+ else if (strcasecmp(buf, "CENTER") == 0 ||
+ strcasecmp(buf, "P") == 0 ||
+ strcasecmp(buf, "H1") == 0 ||
+ strcasecmp(buf, "H2") == 0 ||
+ strcasecmp(buf, "H3") == 0 ||
+ strcasecmp(buf, "H4") == 0 ||
+ strcasecmp(buf, "H5") == 0 ||
+ strcasecmp(buf, "H6") == 0 ||
+ strcasecmp(buf, "UL") == 0 ||
+ strcasecmp(buf, "OL") == 0 ||
+ strcasecmp(buf, "DL") == 0 ||
+ strcasecmp(buf, "LI") == 0 ||
+ strcasecmp(buf, "DD") == 0 ||
+ strcasecmp(buf, "DT") == 0 ||
+ strcasecmp(buf, "HR") == 0 ||
+ strcasecmp(buf, "PRE") == 0 ||
+ strcasecmp(buf, "TABLE") == 0)
+ {
+ block->end = start;
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ block->h += hh;
+
+ if (!block->h && nblocks_ > 1)
+ {
+ nblocks_ --;
+ block --;
+ }
+
+ if (strcasecmp(buf, "UL") == 0 ||
+ strcasecmp(buf, "OL") == 0 ||
+ strcasecmp(buf, "DL") == 0)
+ {
+ xx += 4 * size;
+ block->h += size + 2;
+ }
+ else if (strcasecmp(buf, "TABLE") == 0)
+ {
+ if (get_attr(attrs, "BORDER", attr, sizeof(attr)))
+ border = atoi(attr);
+ else
+ border = 0;
+
+ block->h += size + 2;
+
+ if (get_attr(attrs, "WIDTH", attr, sizeof(attr)))
+ {
+ if (attr[strlen(attr) - 1] == '%')
+ table_width = atoi(attr) * w() / 100;
+ else
+ table_width = atoi(attr);
+ }
+ else
+ table_width = w();
+
+ for (column = 0; column < 200; column ++)
+ columns[column] = table_width / 3;
+
+ column = 0;
+ }
+
+ if (tolower(buf[0]) == 'h' && isdigit(buf[1]))
+ {
+ font = FL_HELVETICA_BOLD;
+ size = textsize_ + '7' - buf[1];
+ }
+ else if (strcasecmp(buf, "DT") == 0)
+ {
+ font = textfont_ | FL_ITALIC;
+ size = textsize_;
+ }
+ else if (strcasecmp(buf, "PRE") == 0)
+ {
+ font = FL_COURIER;
+ size = textsize_;
+ pre = 1;
+ }
+ else
+ {
+ font = textfont_;
+ size = textsize_;
+ }
+
+ pushfont(font, size);
+
+ yy = block->y + block->h;
+ hh = 0;
+
+ if ((tolower(buf[0]) == 'h' && isdigit(buf[1])) ||
+ strcasecmp(buf, "DD") == 0 ||
+ strcasecmp(buf, "DT") == 0 ||
+ strcasecmp(buf, "UL") == 0 ||
+ strcasecmp(buf, "OL") == 0 ||
+ strcasecmp(buf, "P") == 0)
+ yy += size + 2;
+ else if (strcasecmp(buf, "HR") == 0)
+ {
+ hh += 2 * size;
+ yy += size;
+ }
+
+ if (row)
+ block = add_block(start, block->x, yy, block->w, 0);
+ else
+ block = add_block(start, xx, yy, w() - 24, 0);
+
+ needspace = 0;
+ line = 0;
+
+ if (strcasecmp(buf, "CENTER") == 0)
+ align = CENTER;
+ else
+ align = get_align(attrs, LEFT);
+ }
+ else if (strcasecmp(buf, "/P") == 0 ||
+ strcasecmp(buf, "/H1") == 0 ||
+ strcasecmp(buf, "/H2") == 0 ||
+ strcasecmp(buf, "/H3") == 0 ||
+ strcasecmp(buf, "/H4") == 0 ||
+ strcasecmp(buf, "/H5") == 0 ||
+ strcasecmp(buf, "/H6") == 0 ||
+ strcasecmp(buf, "/PRE") == 0 ||
+ strcasecmp(buf, "/UL") == 0 ||
+ strcasecmp(buf, "/OL") == 0 ||
+ strcasecmp(buf, "/DL") == 0 ||
+ strcasecmp(buf, "/TABLE") == 0)
+ {
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ block->end = ptr;
+
+ if (strcasecmp(buf, "/UL") == 0 ||
+ strcasecmp(buf, "/OL") == 0 ||
+ strcasecmp(buf, "/DL") == 0)
+ {
+ xx -= 4 * size;
+ block->h += size + 2;
+ }
+ else if (strcasecmp(buf, "/TABLE") == 0)
+ block->h += size + 2;
+ else if (strcasecmp(buf, "/PRE") == 0)
+ {
+ pre = 0;
+ hh = 0;
+ }
+
+ initfont(font, size);
+
+ while (isspace(*ptr))
+ ptr ++;
+
+ block->h += hh;
+ yy += hh;
+
+ if (tolower(buf[2]) == 'l')
+ yy += size + 2;
+
+ block = add_block(ptr, xx, yy, w() - 24, 0);
+ needspace = 0;
+ hh = 0;
+ line = 0;
+ align = LEFT;
+ }
+ else if (strcasecmp(buf, "TR") == 0)
+ {
+ block->end = start;
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ block->h += hh;
+
+ if (row)
+ {
+ yy = blocks_[row].y + blocks_[row].h;
+
+ for (cell = blocks_ + row + 1; cell <= block; cell ++)
+ if ((cell->y + cell->h) > yy)
+ yy = cell->y + cell->h;
+
+ block->h = yy - block->y + 2;
+
+ for (cell = blocks_ + row + 1; cell < block; cell ++)
+ cell->h = block->h;
+ }
+
+ yy = block->y + block->h - 4;
+ hh = 0;
+ block = add_block(start, xx, yy, w() - 24, 0);
+ row = block - blocks_;
+ needspace = 0;
+ column = 0;
+ line = 0;
+ }
+ else if (strcasecmp(buf, "/TR") == 0 && row)
+ {
+ line = do_align(block, line, xx, align, links);
+ block->end = start;
+ block->h += hh;
+
+ xx = blocks_[row].x;
+
+ if (block->end == block->start && nblocks_ > 1)
+ {
+ nblocks_ --;
+ block --;
+ }
+
+ yy = blocks_[row].y + blocks_[row].h;
+
+ for (cell = blocks_ + row + 1; cell <= block; cell ++)
+ if ((cell->y + cell->h) > yy)
+ yy = cell->y + cell->h;
+
+ block->h = yy - block->y + 2;
+
+ for (cell = blocks_ + row + 1; cell < block; cell ++)
+ cell->h = block->h;
+
+ yy = block->y + block->h - 4;
+ block = add_block(start, xx, yy, w() - 24, 0);
+ needspace = 0;
+ row = 0;
+ line = 0;
+ }
+ else if ((strcasecmp(buf, "TD") == 0 ||
+ strcasecmp(buf, "TH") == 0) && row)
+ {
+ line = do_align(block, line, xx, align, links);
+ block->end = start;
+ block->h += hh;
+
+ if (strcasecmp(buf, "TH") == 0)
+ font = textfont_ | FL_BOLD;
+ else
+ font = textfont_;
+
+ size = textsize_;
+
+ if (column == 0)
+ xx = block->x + size + 3;
+ else
+ xx = block->w + 6;
+
+ if (block->end == block->start && nblocks_ > 1)
+ {
+ nblocks_ --;
+ block --;
+ }
+
+ pushfont(font, size);
+
+ if (get_attr(attrs, "WIDTH", attr, sizeof(attr)) != NULL)
+ {
+ ww = atoi(attr);
+
+ if (attr[strlen(attr) - 1] == '%')
+ ww = ww * w() / 100;
+
+ columns[column] = ww;
+ }
+ else
+ ww = columns[column];
+
+ yy = blocks_[row].y;
+ hh = 0;
+ block = add_block(start, xx, yy, xx + ww, 0, border);
+ needspace = 0;
+ line = 0;
+
+ align = get_align(attrs, tolower(buf[1]) == 'h' ? CENTER : LEFT);
+
+ column ++;
+ }
+ else if ((strcasecmp(buf, "/TD") == 0 ||
+ strcasecmp(buf, "/TH") == 0) && row)
+ popfont(font, size);
+ else if (strcasecmp(buf, "B") == 0)
+ pushfont(font |= FL_BOLD, size);
+ else if (strcasecmp(buf, "I") == 0)
+ pushfont(font |= FL_ITALIC, size);
+ else if (strcasecmp(buf, "CODE") == 0)
+ pushfont(font = FL_COURIER, size);
+ else if (strcasecmp(buf, "KBD") == 0)
+ pushfont(font = FL_COURIER_BOLD, size);
+ else if (strcasecmp(buf, "VAR") == 0)
+ pushfont(font = FL_COURIER_ITALIC, size);
+ else if (strcasecmp(buf, "/B") == 0 ||
+ strcasecmp(buf, "/I") == 0 ||
+ strcasecmp(buf, "/CODE") == 0 ||
+ strcasecmp(buf, "/KBD") == 0 ||
+ strcasecmp(buf, "/VAR") == 0)
+ popfont(font, size);
+ }
+ else if (strcasecmp(buf, "IMG") == 0 &&
+ get_attr(attrs, "ALT", attr, sizeof(attr)) != NULL)
+ {
+ // Show alt text...
+ ww = (int)(fl_width(attr) + fl_width('[') + fl_width(']'));
+
+ if (needspace && xx > block->x)
+ ww += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ yy += hh;
+ block->h += hh;
+ hh = 0;
+ }
+
+ if (link[0])
+ add_link(link, xx, yy - size, ww, size);
+
+ xx += ww;
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ needspace = 0;
+ }
+ else if (*ptr == '\n' && pre)
+ {
+ if (link[0])
+ add_link(link, xx, yy - hh, ww, hh);
+
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ yy += hh;
+ block->h += hh;
+ needspace = 0;
+ ptr ++;
+ }
+ else if (isspace(*ptr))
+ {
+ needspace = 1;
+
+ ptr ++;
+ }
+ else if (*ptr == '&' && s < (buf + sizeof(buf) - 1))
+ {
+ ptr ++;
+
+ if (strncasecmp(ptr, "amp;", 4) == 0)
+ {
+ *s++ = '&';
+ ptr += 4;
+ }
+ else if (strncasecmp(ptr, "lt;", 3) == 0)
+ {
+ *s++ = '<';
+ ptr += 3;
+ }
+ else if (strncasecmp(ptr, "gt;", 3) == 0)
+ {
+ *s++ = '>';
+ ptr += 3;
+ }
+ else if (strncasecmp(ptr, "nbsp;", 5) == 0)
+ {
+ *s++ = '\240';
+ ptr += 5;
+ }
+ else if (strncasecmp(ptr, "copy;", 5) == 0)
+ {
+ *s++ = '\251';
+ ptr += 5;
+ }
+ else if (strncasecmp(ptr, "reg;", 4) == 0)
+ {
+ *s++ = '\256';
+ ptr += 4;
+ }
+ else if (strncasecmp(ptr, "quot;", 5) == 0)
+ {
+ *s++ = '\"';
+ ptr += 5;
+ }
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+ }
+ else
+ {
+ if (s < (buf + sizeof(buf) - 1))
+ *s++ = *ptr++;
+ else
+ ptr ++;
+
+ if ((size + 2) > hh)
+ hh = size + 2;
+ }
+ }
+
+ if (s > buf && !pre && !head)
+ {
+ *s = '\0';
+ ww = (int)fl_width(buf);
+
+ if (needspace && xx > block->x)
+ ww += (int)fl_width(' ');
+
+ if ((xx + ww) > block->w)
+ {
+ line = do_align(block, line, xx, align, links);
+ xx = block->x;
+ yy += hh;
+ block->h += hh;
+ hh = 0;
+ }
+
+ if (link[0])
+ add_link(link, xx, yy - size, ww, size);
+
+ xx += ww;
+ if ((size + 2) > hh)
+ hh = size + 2;
+
+ needspace = 0;
+ }
+
+ block->end = ptr;
+ size_ = yy + hh;
+
+ if (ntargets_ > 1)
+ qsort(targets_, ntargets_, sizeof(HelpTarget),
+ (int (*)(const void *, const void *))compare_targets);
+
+ if (size_ < (h() - 8))
+ scrollbar_.hide();
+ else
+ scrollbar_.show();
+
+ topline(topline_);
+}
+
+
+//
+// 'HelpView::get_align()' - Get an alignment attribute.
+//
+
+int // O - Alignment
+HelpView::get_align(const char *p, // I - Pointer to start of attrs
+ int a) // I - Default alignment
+{
+ char buf[255]; // Alignment value
+
+
+ if (get_attr(p, "ALIGN", buf, sizeof(buf)) == NULL)
+ return (a);
+
+ if (strcasecmp(buf, "CENTER") == 0)
+ return (CENTER);
+ else if (strcasecmp(buf, "RIGHT") == 0)
+ return (RIGHT);
+ else
+ return (LEFT);
+}
+
+
+//
+// 'HelpView::get_attr()' - Get an attribute value from the string.
+//
+
+const char * // O - Pointer to buf or NULL
+HelpView::get_attr(const char *p, // I - Pointer to start of attributes
+ const char *n, // I - Name of attribute
+ char *buf, // O - Buffer for attribute value
+ int bufsize) // I - Size of buffer
+{
+ char name[255], // Name from string
+ *ptr, // Pointer into name or value
+ quote; // Quote
+
+
+ while (*p && *p != '>')
+ {
+ while (isspace(*p))
+ p ++;
+
+ if (*p == '>' || !*p)
+ return (NULL);
+
+ for (ptr = name; *p && !isspace(*p) && *p != '=' && *p != '>';)
+ if (ptr < (name + sizeof(name) - 1))
+ *ptr++ = *p++;
+ else
+ p ++;
+
+ *ptr = '\0';
+
+ if (isspace(*p) || !*p || *p == '>')
+ buf[0] = '\0';
+ else
+ {
+ if (*p == '=')
+ p ++;
+
+ for (ptr = buf; *p && !isspace(*p) && *p != '>';)
+ if (*p == '\'' || *p == '\"')
+ {
+ quote = *p++;
+
+ while (*p && *p != quote)
+ if ((ptr - buf + 1) < bufsize)
+ *ptr++ = *p++;
+ else
+ p ++;
+
+ if (*p == quote)
+ p ++;
+ }
+ else if ((ptr - buf + 1) < bufsize)
+ *ptr++ = *p++;
+ else
+ p ++;
+
+ *ptr = '\0';
+ }
+
+ if (strcasecmp(n, name) == 0)
+ return (buf);
+
+ if (*p == '>')
+ return (NULL);
+ }
+
+ return (NULL);
+}
+
+
+//
+// 'HelpView::get_color()' - Get an alignment attribute.
+//
+
+Fl_Color // O - Color value
+HelpView::get_color(const char *n, // I - Color name
+ Fl_Color c) // I - Default color value
+{
+ int rgb, r, g, b; // RGB values
+
+
+ if (!n)
+ return (c);
+
+ if (n[0] == '#')
+ {
+ // Do hex color lookup
+ rgb = strtol(n + 1, NULL, 16);
+
+ r = rgb >> 16;
+ g = (rgb >> 8) & 255;
+ b = rgb & 255;
+
+ if (r == g && g == b)
+ return (fl_gray_ramp(FL_NUM_GRAY * r / 256));
+ else
+ return (fl_color_cube((FL_NUM_RED - 1) * r / 255,
+ (FL_NUM_GREEN - 1) * g / 255,
+ (FL_NUM_BLUE - 1) * b / 255));
+ }
+ else if (strcasecmp(n, "black") == 0)
+ return (FL_BLACK);
+ else if (strcasecmp(n, "red") == 0)
+ return (FL_RED);
+ else if (strcasecmp(n, "green") == 0)
+ return (fl_color_cube(0, 4, 0));
+ else if (strcasecmp(n, "yellow") == 0)
+ return (FL_YELLOW);
+ else if (strcasecmp(n, "blue") == 0)
+ return (FL_BLUE);
+ else if (strcasecmp(n, "magenta") == 0 || strcasecmp(n, "fuchsia") == 0)
+ return (FL_MAGENTA);
+ else if (strcasecmp(n, "cyan") == 0 || strcasecmp(n, "aqua") == 0)
+ return (FL_CYAN);
+ else if (strcasecmp(n, "white") == 0)
+ return (FL_WHITE);
+ else if (strcasecmp(n, "gray") == 0 || strcasecmp(n, "grey") == 0)
+ return (FL_GRAY);
+ else if (strcasecmp(n, "lime") == 0)
+ return (FL_GREEN);
+ else if (strcasecmp(n, "maroon") == 0)
+ return (fl_color_cube(2, 0, 0));
+ else if (strcasecmp(n, "navy") == 0)
+ return (fl_color_cube(0, 0, 2));
+ else if (strcasecmp(n, "olive") == 0)
+ return (fl_color_cube(2, 4, 0));
+ else if (strcasecmp(n, "purple") == 0)
+ return (fl_color_cube(2, 0, 2));
+ else if (strcasecmp(n, "silver") == 0)
+ return (FL_LIGHT2);
+ else if (strcasecmp(n, "teal") == 0)
+ return (fl_color_cube(0, 4, 2));
+ else
+ return (c);
+}
+
+
+//
+// 'HelpView::handle()' - Handle events in the widget.
+//
+
+int // O - 1 if we handled it, 0 otherwise
+HelpView::handle(int event) // I - Event to handle
+{
+ int i; // Looping var
+ int xx, yy; // Adjusted mouse position
+ HelpLink *link; // Current link
+ char target[32]; // Current target
+
+
+ switch (event)
+ {
+ case FL_MOVE :
+ case FL_PUSH :
+ xx = Fl::event_x() - x();
+ yy = Fl::event_y() - y() + topline_;
+ if (!scrollbar_.visible() || xx < (w() - 20))
+ break;
+
+ default :
+ // Use the Fl_Group handler...
+ return (Fl_Group::handle(event));
+ }
+
+ // Handle mouse clicks on links...
+ for (i = nlinks_, link = links_; i > 0; i --, link ++)
+ if (xx >= link->x && xx < link->w &&
+ yy >= link->y && yy < link->h)
+ break;
+
+ if (!i)
+ {
+ fl_cursor(FL_CURSOR_DEFAULT);
+ return (1);
+ }
+
+ // Change the cursor for FL_MOTION events, and go to the link for
+ // clicks...
+ if (event == FL_MOVE)
+ fl_cursor(FL_CURSOR_HAND);
+ else
+ {
+ fl_cursor(FL_CURSOR_DEFAULT);
+
+ strncpy(target, link->name, sizeof(target) - 1);
+ target[sizeof(target) - 1] = '\0';
+
+ set_changed();
+
+ if (strcmp(link->filename, filename_) != 0 && link->filename[0])
+ {
+ char dir[1024]; // Current directory
+ char temp[1024]; // Temporary filename
+
+
+ if (link->filename[0] != '/' && strchr(link->filename, ':') == NULL)
+ {
+ if (directory_[0])
+ sprintf(temp, "%s/%s", directory_, link->filename);
+ else
+ {
+ getcwd(dir, sizeof(dir));
+ sprintf(temp, "file:%s/%s", dir, link->filename);
+ }
+
+ load(temp);
+ }
+ else
+ load(link->filename);
+ }
+ else if (target[0])
+ topline(target);
+ else
+ topline(0);
+ }
+
+ return (1);
+}
+
+
+//
+// 'HelpView::HelpView()' - Build a HelpView widget.
+//
+
+HelpView::HelpView(int xx, // I - Left position
+ int yy, // I - Top position
+ int ww, // I - Width in pixels
+ int hh, // I - Height in pixels
+ const char *l)
+ : Fl_Group(xx, yy, ww, hh, l),
+ scrollbar_(xx + ww - 17, yy, 17, hh)
+{
+ filename_[0] = '\0';
+ value_ = NULL;
+
+ ablocks_ = 0;
+ nblocks_ = 0;
+ blocks_ = (HelpBlock *)0;
+
+ alinks_ = 0;
+ nlinks_ = 0;
+ links_ = (HelpLink *)0;
+
+ atargets_ = 0;
+ ntargets_ = 0;
+ targets_ = (HelpTarget *)0;
+
+ nfonts_ = 0;
+ textfont_ = FL_TIMES;
+ textsize_ = 12;
+
+ topline_ = 0;
+ size_ = 0;
+
+ color(FL_WHITE);
+ textcolor(FL_BLACK);
+ selection_color(FL_BLUE);
+
+ scrollbar_.value(0, hh, 0, 1);
+ scrollbar_.step(8.0);
+ scrollbar_.show();
+ scrollbar_.callback(scrollbar_callback);
+
+ end();
+}
+
+
+//
+// 'HelpView::~HelpView()' - Destroy a HelpView widget.
+//
+
+HelpView::~HelpView()
+{
+ if (nblocks_)
+ free(blocks_);
+ if (nlinks_)
+ free(links_);
+ if (ntargets_)
+ free(targets_);
+ if (value_)
+ free((void *)value_);
+}
+
+
+//
+// 'HelpView::load()' - Load the specified file.
+//
+
+int // O - 0 on success, -1 on error
+HelpView::load(const char *f) // I - Filename to load (may also have target)
+{
+ FILE *fp; // File to read from
+ long len; // Length of file
+ char *target; // Target in file
+ char *slash; // Directory separator
+ const char *localname; // Local filename
+ char error[1024]; // Error buffer
+
+
+ strcpy(filename_, f);
+ strcpy(directory_, filename_);
+
+ if ((slash = strrchr(directory_, '/')) == NULL)
+ directory_[0] = '\0';
+ else if (slash > directory_ && slash[-1] != '/')
+ *slash = '\0';
+
+ if ((target = strrchr(filename_, '#')) != NULL)
+ *target++ = '\0';
+
+ if (link_)
+ localname = (*link_)(filename_);
+ else
+ localname = filename_;
+
+ if (localname != NULL &&
+ (strncmp(localname, "ftp:", 4) == 0 ||
+ strncmp(localname, "http:", 5) == 0 ||
+ strncmp(localname, "https:", 6) == 0 ||
+ strncmp(localname, "ipp:", 4) == 0 ||
+ strncmp(localname, "mailto:", 7) == 0 ||
+ strncmp(localname, "news:", 5) == 0))
+ localname = NULL; // Remote link wasn't resolved...
+ else if (localname != NULL &&
+ strncmp(localname, "file:", 5) == 0)
+ localname += 5; // Adjust for local filename...
+
+ if (value_ != NULL)
+ {
+ free((void *)value_);
+ value_ = NULL;
+ }
+
+ if (localname)
+ {
+ if ((fp = fopen(localname, "rb")) != NULL)
+ {
+ fseek(fp, 0, SEEK_END);
+ len = ftell(fp);
+ rewind(fp);
+
+ value_ = (const char *)calloc(len + 1, 1);
+ fread((void *)value_, 1, len, fp);
+ fclose(fp);
+ }
+ else
+ {
+ sprintf(error, "%s: %s\n", localname, strerror(errno));
+ value_ = strdup(error);
+ }
+ }
+ else
+ value_ = strdup("File or link could not be opened.\n");
+
+ format();
+
+ if (target)
+ topline(target);
+ else
+ topline(0);
+
+ return (0);
+}
+
+
+//
+// 'HelpView::resize()' - Resize the help widget.
+//
+
+void
+HelpView::resize(int xx, // I - New left position
+ int yy, // I - New top position
+ int ww, // I - New width
+ int hh) // I - New height
+{
+ Fl_Widget::resize(xx, yy, ww, hh);
+ scrollbar_.resize(xx + ww - 17, yy, 17, hh);
+
+ format();
+}
+
+
+//
+// 'HelpView::topline()' - Set the top line to the named target.
+//
+
+void
+HelpView::topline(const char *n) // I - Target name
+{
+ HelpTarget key, // Target name key
+ *target; // Pointer to matching target
+
+
+ if (ntargets_ == 0)
+ return;
+
+ strncpy(key.name, n, sizeof(key.name) - 1);
+ key.name[sizeof(key.name) - 1] = '\0';
+
+ target = (HelpTarget *)bsearch(&key, targets_, ntargets_, sizeof(HelpTarget),
+ (int (*)(const void *, const void *))compare_targets);
+
+ if (target != NULL)
+ topline(target->y);
+}
+
+
+//
+// 'HelpView::topline()' - Set the top line by number.
+//
+
+void
+HelpView::topline(int t) // I - Top line number
+{
+ if (!value_)
+ return;
+
+ if (size_ < (h() - 8) || t < 0)
+ t = 0;
+ else if (t > size_)
+ t = size_;
+
+ topline_ = t;
+
+ scrollbar_.value(topline_, h(), 0, size_);
+
+ do_callback();
+ clear_changed();
+
+ redraw();
+}
+
+
+//
+// 'HelpView::value()' - Set the help text directly.
+//
+
+void
+HelpView::value(const char *v) // I - Text to view
+{
+ if (!v)
+ return;
+
+ if (value_ != NULL)
+ free((void *)value_);
+
+ value_ = strdup(v);
+
+ format();
+
+ set_changed();
+ topline(0);
+}
+
+
+//
+// 'scrollbar_callback()' - A callback for the scrollbar.
+//
+
+static void
+scrollbar_callback(Fl_Widget *s, void *)
+{
+ ((HelpView *)(s->parent()))->topline(int(((Fl_Scrollbar*)s)->value()));
+}
+
+
+//
+// End of "$Id: HelpView.cxx,v 1.22 2000/03/19 23:27:14 mike Exp $".
+//
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 06:02:34 +0000