Fl_Help_View: Refactor more strings and dynamic lists.
This commit is contained in:
Matthias Melcher
parent
5919dbb6af
commit
872e2b8fb6
@ -197,7 +197,7 @@ class FL_EXPORT Fl_Help_View : public Fl_Group
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enum { RIGHT = -1, CENTER, LEFT }; ///< Alignments
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char title_[1024]; ///< Title string
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std::string title_; ///< Title string
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Fl_Color defcolor_, ///< Default text color
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bgcolor_, ///< Background color
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textcolor_, ///< Text color
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@ -206,9 +206,7 @@ class FL_EXPORT Fl_Help_View : public Fl_Group
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Fl_Fontsize textsize_; ///< Default font size
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const char *value_; ///< HTML text value
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Fl_Help_Font_Stack fstack_; ///< font stack management
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int nblocks_, ///< Number of blocks/paragraphs
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ablocks_; ///< Allocated blocks
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Fl_Help_Block *blocks_; ///< Blocks
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std::vector<Fl_Help_Block> blocks_; ///< Blocks
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Fl_Help_Func *link_; ///< Link transform function
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@ -216,10 +214,9 @@ class FL_EXPORT Fl_Help_View : public Fl_Group
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std::map<std::string, int> target_line_map_; ///< Map of targets for fast access
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// FIXME: do we really need this size?
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char directory_[2 * FL_PATH_MAX + 15]; ///< Directory for current file
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std::string directory_; ///< Directory for current file
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std::string filename_; ///< Current filename
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char filename_[FL_PATH_MAX]; ///< Current filename
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int topline_, ///< Top line in document
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leftline_, ///< Lefthand position
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size_, ///< Total document length
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@ -287,6 +284,7 @@ public:
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const char *filename() const;
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const char *directory() const;
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const char *title() const;
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int find(const char *s, int p = 0);
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void link(Fl_Help_Func *fn);
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@ -306,8 +304,6 @@ public:
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void textsize(Fl_Fontsize s) { textsize_ = s; format(); }
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/** Gets the default text size. */
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Fl_Fontsize textsize() const { return (textsize_); }
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/** Returns the current document title, or NULL if there is no title. */
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const char *title() { return (title_); }
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void topline(const char *n);
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void topline(int);
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/** Returns the current top line in pixels. */
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@ -388,17 +388,9 @@ Fl_Help_View::add_block(const char *s, // I - Pointer to start of block
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// printf("add_block(s = %p, xx = %d, yy = %d, ww = %d, hh = %d, border = %d)\n",
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// s, xx, yy, ww, hh, border);
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if (nblocks_ >= ablocks_)
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{
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ablocks_ += 16;
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blocks_.push_back(Fl_Help_Block()); // Add a new block to the vector
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temp = &blocks_.back();
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if (ablocks_ == 16)
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blocks_ = (Fl_Help_Block *)malloc(sizeof(Fl_Help_Block) * ablocks_);
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else
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blocks_ = (Fl_Help_Block *)realloc(blocks_, sizeof(Fl_Help_Block) * ablocks_);
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}
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temp = blocks_ + nblocks_;
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memset(temp, 0, sizeof(Fl_Help_Block));
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temp->start = s;
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temp->end = s;
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@ -408,7 +400,6 @@ Fl_Help_View::add_block(const char *s, // I - Pointer to start of block
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temp->h = hh;
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temp->border = border;
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temp->bgcolor = bgcolor_;
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nblocks_ ++;
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return (temp);
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}
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@ -564,7 +555,7 @@ Fl_Help_View::draw()
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fl_color(textcolor_);
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// Draw all visible blocks...
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for (i = 0, block = blocks_; i < nblocks_; i ++, block ++)
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for (i = 0, block = &blocks_[0]; i < blocks_.size(); i ++, block ++)
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if ((block->y + block->h) >= topline_ && block->y < (topline_ + h()))
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{
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line = 0;
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@ -1098,7 +1089,7 @@ Fl_Help_View::find(const char *s, // I - String to find
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if (p < 0 || p >= (int)strlen(value_)) p = 0;
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// Look for the string...
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for (i = nblocks_, b = blocks_; i > 0; i--, b++) {
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for (i = blocks_.size(), b = &blocks_[0]; i > 0; i--, b++) {
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if (b->end < (value_ + p))
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continue;
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@ -1228,7 +1219,7 @@ void Fl_Help_View::format() {
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{
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// Reset state variables...
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done = 1;
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nblocks_ = 0;
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blocks_.clear();
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link_list_.clear();
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target_line_map_.clear();
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size_ = 0;
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@ -1238,7 +1229,7 @@ void Fl_Help_View::format() {
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tc = rc = bgcolor_;
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strcpy(title_, "Untitled");
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title_ = "Untitled";
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if (!value_)
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return;
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@ -1392,12 +1383,10 @@ void Fl_Help_View::format() {
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else if (buf.cmp("TITLE"))
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{
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// Copy the title in the document...
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char *st;
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for (st = title_;
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*ptr != '<' && *ptr && st < (title_ + sizeof(title_) - 1);
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*st++ = *ptr++) {/*empty*/}
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*st = '\0';
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title_.clear();
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for ( ; *ptr != '<' && *ptr; ptr++) {
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title_.push_back(*ptr);
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}
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buf.clear();
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}
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else if (buf.cmp("A"))
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@ -1652,18 +1641,18 @@ void Fl_Help_View::format() {
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{
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yy = blocks_[row].y + blocks_[row].h;
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for (cell = blocks_ + row + 1; cell <= block; cell ++)
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for (cell = &blocks_[row + 1]; cell <= block; cell ++)
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if ((cell->y + cell->h) > yy)
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yy = cell->y + cell->h;
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block = blocks_ + row;
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block = &blocks_[row];
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block->h = yy - block->y + 2;
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for (i = 0; i < column; i ++)
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if (cells[i])
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{
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cell = blocks_ + cells[i];
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cell = &blocks_[cells[i]];
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cell->h = block->h;
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}
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}
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@ -1673,7 +1662,7 @@ void Fl_Help_View::format() {
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yy = block->y + block->h - 4;
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hh = 0;
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block = add_block(start, xx, yy, hsize_, 0);
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row = (int) (block - blocks_);
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row = (int) (block - &blocks_[0]);
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needspace = 0;
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column = 0;
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line = 0;
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@ -1690,18 +1679,18 @@ void Fl_Help_View::format() {
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xx = blocks_[row].x;
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yy = blocks_[row].y + blocks_[row].h;
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for (cell = blocks_ + row + 1; cell <= block; cell ++)
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for (cell = &blocks_[row + 1]; cell <= block; cell ++)
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if ((cell->y + cell->h) > yy)
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yy = cell->y + cell->h;
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block = blocks_ + row;
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block = &blocks_[row];
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block->h = yy - block->y + 2;
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for (i = 0; i < column; i ++)
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if (cells[i])
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{
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cell = blocks_ + cells[i];
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cell = &blocks_[cells[i]];
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cell->h = block->h;
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}
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@ -1742,9 +1731,9 @@ void Fl_Help_View::format() {
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for (i = 0, ww = -6; i < colspan; i ++)
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ww += columns[column + i] + 6;
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if (block->end == block->start && nblocks_ > 1)
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if (block->end == block->start && blocks_.size() > 1)
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{
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nblocks_ --;
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blocks_.pop_back();
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block --;
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}
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@ -1758,7 +1747,7 @@ void Fl_Help_View::format() {
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newalign = get_align(attrs, tolower(buf[1]) == 'h' ? CENTER : LEFT);
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talign = newalign;
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cells[column] = (int) (block - blocks_);
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cells[column] = (int) (block - &blocks_[0]);
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column += colspan;
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@ -2506,13 +2495,7 @@ Fl_Help_View::free_data() {
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}
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// Free all of the arrays...
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if (nblocks_) {
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free(blocks_);
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ablocks_ = 0;
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nblocks_ = 0;
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blocks_ = 0;
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}
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blocks_ .clear();
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link_list_.clear();
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target_line_map_.clear();
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@ -2720,9 +2703,9 @@ Fl_Help_View::get_image(const char *name, int W, int H) {
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Fl_Shared_Image *ip; // Image pointer...
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// See if the image can be found...
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if (strchr(directory_, ':') != NULL && strchr(name, ':') == NULL) {
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if (strchr(directory_.c_str(), ':') != NULL && strchr(name, ':') == NULL) {
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if (name[0] == '/') {
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strlcpy(temp, directory_, sizeof(temp));
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strlcpy(temp, directory_.c_str(), sizeof(temp));
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// the following search (strchr) will always succeed, see condition above!
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tempptr = skip_bytes(strchr(temp, ':'), 3);
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if ((tempptr = strrchr(tempptr, '/')) != NULL) {
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@ -2731,14 +2714,15 @@ Fl_Help_View::get_image(const char *name, int W, int H) {
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strlcat(temp, name, sizeof(temp));
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}
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} else {
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snprintf(temp, sizeof(temp), "%s/%s", directory_, name);
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snprintf(temp, sizeof(temp), "%s/%s", directory_.c_str(), name);
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}
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if (link_) localname = (*link_)(this, temp);
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else localname = temp;
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} else if (name[0] != '/' && strchr(name, ':') == NULL) {
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if (directory_[0]) snprintf(temp, sizeof(temp), "%s/%s", directory_, name);
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else {
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if (!directory_.empty()) {
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snprintf(temp, sizeof(temp), "%s/%s", directory_.c_str(), name);
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} else {
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fl_getcwd(dir, sizeof(dir));
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snprintf(temp, sizeof(temp), "file:%s/%s", dir, name);
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}
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@ -2800,26 +2784,25 @@ std::shared_ptr<Fl_Help_View::Link> Fl_Help_View::find_link(int xx, int yy)
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void Fl_Help_View::follow_link(std::shared_ptr<Link> linkp)
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{
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char target[32]; // Current target
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std::string target; // Current target
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clear_selection();
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strlcpy(target, linkp->target.c_str(), sizeof(target));
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target = linkp->target;
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set_changed();
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if (strcmp(linkp->filename_.c_str(), filename_) != 0 && !linkp->filename_.empty())
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if (strcmp(linkp->filename_.c_str(), filename_.c_str()) != 0 && !linkp->filename_.empty())
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{
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char dir[FL_PATH_MAX]; // Current directory
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char temp[3 * FL_PATH_MAX], // Temporary filename
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*tempptr; // Pointer into temporary filename
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if (strchr(directory_, ':') != NULL && strchr(linkp->filename_.c_str(), ':') == NULL)
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if (strchr(directory_.c_str(), ':') != NULL && strchr(linkp->filename_.c_str(), ':') == NULL)
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{
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if (linkp->filename_[0] == '/')
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{
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strlcpy(temp, directory_, sizeof(temp));
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strlcpy(temp, directory_.c_str(), sizeof(temp));
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// the following search (strchr) will always succeed, see condition above!
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tempptr = skip_bytes(strchr(temp, ':'), 3);
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if ((tempptr = strrchr(tempptr, '/')) != NULL) {
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@ -2829,14 +2812,15 @@ void Fl_Help_View::follow_link(std::shared_ptr<Link> linkp)
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}
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}
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else
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snprintf(temp, sizeof(temp), "%s/%s", directory_, linkp->filename_.c_str());
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snprintf(temp, sizeof(temp), "%s/%s", directory_.c_str(), linkp->filename_.c_str());
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}
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else if (linkp->filename_[0] != '/' && strchr(linkp->filename_.c_str(), ':') == NULL)
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{
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if (directory_[0])
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snprintf(temp, sizeof(temp), "%s/%s", directory_, linkp->filename_.c_str());
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if (!directory_.empty())
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snprintf(temp, sizeof(temp), "%s/%s", directory_.c_str(), linkp->filename_.c_str());
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else
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{
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char dir[FL_PATH_MAX]; // Current directory
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fl_getcwd(dir, sizeof(dir));
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snprintf(temp, sizeof(temp), "file:%s/%s", dir, linkp->filename_.c_str());
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}
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@ -2850,8 +2834,8 @@ void Fl_Help_View::follow_link(std::shared_ptr<Link> linkp)
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load(temp);
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}
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else if (target[0])
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topline(target);
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else if (!target.empty())
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topline(target.c_str());
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else
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topline(0);
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@ -3216,16 +3200,14 @@ Fl_Help_View::Fl_Help_View(int xx, // I - Left position
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textsize_ = 12;
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value_ = NULL;
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ablocks_ = 0;
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nblocks_ = 0;
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blocks_ = (Fl_Help_Block *)0;
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blocks_.clear();
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link_ = (Fl_Help_Func *)0;
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link_list_.clear();
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directory_[0] = '\0';
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filename_[0] = '\0';
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directory_.clear();
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filename_.clear();
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topline_ = 0;
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leftline_ = 0;
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@ -3271,10 +3253,10 @@ Fl_Help_View::~Fl_Help_View()
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\return nullptr if the filename is empty
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*/
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const char *Fl_Help_View::filename() const {
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if (filename_[0])
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return (filename_);
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else
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if (filename_.empty())
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return nullptr;
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else
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return filename_.c_str();
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}
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@ -3287,10 +3269,23 @@ const char *Fl_Help_View::filename() const {
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\return nullptr if the directory name is empty
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*/
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const char *Fl_Help_View::directory() const {
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if (directory_[0])
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return (directory_);
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else
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if (directory_.empty())
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return nullptr;
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else
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return directory_.c_str();
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}
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/**
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\brief Return the title of the current document.
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Fl_Help_View remains the owner of the allocated memory. If the document
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chages, the returned pointer will become stale.
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\return empty string if the directory name is empty
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*/
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const char *Fl_Help_View::title() const {
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return title_.c_str();
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}
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@ -3324,6 +3319,7 @@ void Fl_Help_View::link(Fl_Help_Func *fn) {
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link_ = fn;
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}
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/** Loads the specified file.
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This method loads the specified file or URL. The filename may end in a
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@ -3347,11 +3343,10 @@ int Fl_Help_View::load(const char *f)
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{
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FILE *fp; // File to read from
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long len; // Length of file
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char *target; // Target in file
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char *slash; // Directory separator
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const char *localname; // Local filename
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char error[2 * FL_PATH_MAX]; // Error buffer
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char newname[FL_PATH_MAX]; // New filename buffer
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std::string target; // Target in file
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std::string localname; // Local filename
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std::string error; // Error buffer
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std::string newname; // New filename buffer
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// printf("load(%s)\n",f); fflush(stdout);
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@ -3366,37 +3361,41 @@ int Fl_Help_View::load(const char *f)
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if ( fl_open_uri(f, urimsg, sizeof(urimsg)) == 0 ) {
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clear_selection();
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strlcpy(newname, f, sizeof(newname));
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if ((target = strrchr(newname, '#')) != NULL)
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*target++ = '\0';
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newname = f;
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size_t hash_pos = newname.find_last_of('#');
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if (hash_pos != std::string::npos) {
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target = newname.substr(hash_pos + 1);
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newname.resize(hash_pos);
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}
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if (link_)
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localname = (*link_)(this, newname);
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else
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localname = filename_;
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if (!localname)
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return (0);
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if (link_) {
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const char *n = (*link_)(this, newname.c_str());
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if (n == nullptr)
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return 0;
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localname = n;
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} else {
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localname = newname;
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}
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free_data();
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strlcpy(filename_, newname, sizeof(filename_));
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strlcpy(directory_, newname, sizeof(directory_));
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filename_ = newname;
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// Note: We do not support Windows backslashes, since they are illegal
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// in URLs...
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if ((slash = strrchr(directory_, '/')) == NULL)
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directory_[0] = '\0';
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else if (slash > directory_ && slash[-1] != '/')
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*slash = '\0';
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directory_ = newname;
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size_t slash_pos = directory_.find_last_of('/');
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if (slash_pos == std::string::npos) {
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directory_.clear();
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} else if ((slash_pos > 0) && (directory_[slash_pos-1] != '/')) {
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directory_.resize(slash_pos);
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}
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snprintf(error, sizeof(error),
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"<HTML><HEAD><TITLE>Error</TITLE></HEAD>"
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error = "<HTML><HEAD><TITLE>Error</TITLE></HEAD>"
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"<BODY><H1>Error</H1>"
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"<P>Unable to follow the link \"%s\" - "
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"%s.</P></BODY>",
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f, urimsg);
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value(error);
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"<P>Unable to follow the link \""
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+ std::string(f) + "\" - " + std::string(urimsg) + ".</P></BODY>";
|
||||
value(error.c_str());
|
||||
return -1;
|
||||
} else {
|
||||
return 0;
|
||||
@ -3405,35 +3404,42 @@ int Fl_Help_View::load(const char *f)
|
||||
|
||||
clear_selection();
|
||||
|
||||
strlcpy(newname, f, sizeof(newname));
|
||||
if ((target = strrchr(newname, '#')) != NULL)
|
||||
*target++ = '\0';
|
||||
newname = f;
|
||||
size_t hash_pos = newname.find_last_of('#');
|
||||
if (hash_pos != std::string::npos) {
|
||||
target = newname.substr(hash_pos + 1);
|
||||
newname.resize(hash_pos);
|
||||
}
|
||||
|
||||
if (link_)
|
||||
localname = (*link_)(this, newname);
|
||||
else
|
||||
localname = filename_;
|
||||
|
||||
if (!localname)
|
||||
if (link_) {
|
||||
const char *n = (*link_)(this, newname.c_str());
|
||||
if (n == nullptr)
|
||||
return -1;
|
||||
localname = n;
|
||||
} else {
|
||||
localname = newname;
|
||||
}
|
||||
|
||||
free_data();
|
||||
|
||||
strlcpy(filename_, newname, sizeof(filename_));
|
||||
strlcpy(directory_, newname, sizeof(directory_));
|
||||
filename_ = newname;
|
||||
directory_ = newname;
|
||||
|
||||
// Note: We do not support Windows backslashes, since they are illegal
|
||||
// in URLs...
|
||||
if ((slash = strrchr(directory_, '/')) == NULL)
|
||||
directory_[0] = '\0';
|
||||
else if (slash > directory_ && slash[-1] != '/')
|
||||
*slash = '\0';
|
||||
size_t slash_pos = directory_.find_last_of('/');
|
||||
if (slash_pos == std::string::npos) {
|
||||
directory_.clear();
|
||||
} else if ((slash_pos > 0) && (directory_[slash_pos-1] != '/')) {
|
||||
directory_.resize(slash_pos);
|
||||
}
|
||||
|
||||
if (strncmp(localname, "file:", 5) == 0)
|
||||
localname += 5; // Adjust for local filename...
|
||||
if (localname.find("file:") == 0) {
|
||||
localname.erase(0, 5); // Adjust for local filename...
|
||||
}
|
||||
|
||||
int ret = 0;
|
||||
if ((fp = fl_fopen(localname, "rb")) != NULL)
|
||||
if ((fp = fl_fopen(localname.c_str(), "rb")) != NULL)
|
||||
{
|
||||
fseek(fp, 0, SEEK_END);
|
||||
len = ftell(fp);
|
||||
@ -3445,13 +3451,11 @@ int Fl_Help_View::load(const char *f)
|
||||
}
|
||||
else
|
||||
{
|
||||
snprintf(error, sizeof(error),
|
||||
"<HTML><HEAD><TITLE>Error</TITLE></HEAD>"
|
||||
error = "<HTML><HEAD><TITLE>Error</TITLE></HEAD>"
|
||||
"<BODY><H1>Error</H1>"
|
||||
"<P>Unable to follow the link \"%s\" - "
|
||||
"%s.</P></BODY>",
|
||||
localname, strerror(errno));
|
||||
value_ = fl_strdup(error);
|
||||
"<P>Unable to follow the link \"" +localname + "\" - "
|
||||
+ strerror(errno) + ".</P></BODY>";
|
||||
value_ = fl_strdup(error.c_str());
|
||||
ret = -1;
|
||||
}
|
||||
|
||||
@ -3459,8 +3463,8 @@ int Fl_Help_View::load(const char *f)
|
||||
format();
|
||||
initial_load = 0;
|
||||
|
||||
if (target)
|
||||
topline(target);
|
||||
if (!target.empty())
|
||||
topline(target.c_str());
|
||||
else
|
||||
topline(0);
|
||||
|
||||
@ -3492,8 +3496,7 @@ void Fl_Help_View::resize(int xx, int yy, int ww, int hh)
|
||||
\brief Scroll the text to the given anchor.
|
||||
\param[in] anchor scroll to this named anchor
|
||||
*/
|
||||
void
|
||||
Fl_Help_View::topline(const char *anchor) // I - Target name
|
||||
void Fl_Help_View::topline(const char *anchor)
|
||||
{
|
||||
std::string target_name = to_lower(anchor); // Convert to lower case
|
||||
auto tl = target_line_map_.find(target_name);
|
||||
@ -3506,6 +3509,7 @@ Fl_Help_View::topline(const char *anchor) // I - Target name
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** Scrolls the text to the indicated position, given a pixel line.
|
||||
|
||||
If the given pixel value \p top is out of range, then the text is
|
||||
|
||||
Loading…
Reference in New Issue
Block a user