mirror of https://github.com/fltk/fltk
Add RMB pulldown menu to Fl_Help_View, #75
- append underscores to private varaibles per CMP - add public Fl_Help_View::copy() and Fl_Help_View::text_selected() - add public Fl_Help_View::copy_menu_text - fixes some of the focus handling - add pulldown menu to copy selected text
This commit is contained in:
Matthias Melcher
parent
e7b8a24685
commit
089f31018b
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@ -235,20 +235,20 @@ class FL_EXPORT Fl_Help_View : public Fl_Group { // Help viewer widget
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Fl_Scrollbar scrollbar_, ///< Vertical scrollbar for document
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hscrollbar_; ///< Horizontal scrollbar
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static int selection_first;
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static int selection_last;
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static int selection_push_first;
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static int selection_push_last;
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static int selection_drag_first;
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static int selection_drag_last;
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static int selected;
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static int draw_mode;
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static int mouse_x;
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static int mouse_y;
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static int current_pos;
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static Fl_Help_View *current_view;
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static Fl_Color hv_selection_color;
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static Fl_Color hv_selection_text_color;
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static int selection_first_;
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static int selection_last_;
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static int selection_push_first_;
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static int selection_push_last_;
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static int selection_drag_first_;
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static int selection_drag_last_;
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static int selected_;
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static int draw_mode_;
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static int mouse_x_;
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static int mouse_y_;
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static int current_pos_;
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static Fl_Help_View *current_view_;
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static Fl_Color hv_selection_color_;
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static Fl_Color hv_selection_text_color_;
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void initfont(Fl_Font &f, Fl_Fontsize &s, Fl_Color &c) { f = textfont_; s = textsize_; c = textcolor_; fstack_.init(f, s, c); }
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@ -286,6 +286,8 @@ private:
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public:
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static const char *copy_menu_text;
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Fl_Help_View(int xx, int yy, int ww, int hh, const char *l = 0);
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~Fl_Help_View();
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/** Returns the current directory for the text in the buffer. */
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@ -383,6 +385,12 @@ public:
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void scrollbar_size(int newSize) {
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scrollbar_size_ = newSize;
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}
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// Check if the user selected text in this view.
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int text_selected();
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// If text is selected in this view, copy it to a clipboard.
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int copy(int clipboard=1);
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};
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#endif // !Fl_Help_View_H
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@ -50,6 +50,7 @@
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#include <FL/Fl_Shared_Image.H>
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#include <FL/Fl_Window.H>
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#include <FL/Fl_Pixmap.H>
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#include <FL/Fl_Menu_Item.H>
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#include "Fl_Int_Vector.H"
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#include "Fl_String.H"
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@ -130,6 +131,14 @@ static const char * const broken_xpm[] =
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static Fl_Pixmap broken_image(broken_xpm);
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/** [this text may be customized at run-time] */
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const char *Fl_Help_View::copy_menu_text = "Copy";
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static Fl_Menu_Item rmb_menu[] = {
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{ NULL, 0, NULL, (void*)1 }, // Copy
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{ NULL }
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};
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//
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// Simple margin stack for Fl_Help_View::format()...
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//
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@ -210,51 +219,51 @@ img->draw()
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// We don't put the offscreen buffer in the help view class because
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// we'd need to include platform.H in the header...
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static Fl_Offscreen fl_help_view_buffer;
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int Fl_Help_View::selection_first = 0;
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int Fl_Help_View::selection_last = 0;
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int Fl_Help_View::selection_push_first = 0;
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int Fl_Help_View::selection_push_last = 0;
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int Fl_Help_View::selection_drag_first = 0;
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int Fl_Help_View::selection_drag_last = 0;
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int Fl_Help_View::selected = 0;
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int Fl_Help_View::draw_mode = 0;
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int Fl_Help_View::mouse_x = 0;
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int Fl_Help_View::mouse_y = 0;
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int Fl_Help_View::current_pos = 0;
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Fl_Help_View *Fl_Help_View::current_view = 0L;
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Fl_Color Fl_Help_View::hv_selection_color;
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Fl_Color Fl_Help_View::hv_selection_text_color;
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int Fl_Help_View::selection_first_ = 0;
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int Fl_Help_View::selection_last_ = 0;
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int Fl_Help_View::selection_push_first_ = 0;
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int Fl_Help_View::selection_push_last_ = 0;
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int Fl_Help_View::selection_drag_first_ = 0;
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int Fl_Help_View::selection_drag_last_ = 0;
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int Fl_Help_View::selected_ = 0;
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int Fl_Help_View::draw_mode_ = 0;
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int Fl_Help_View::mouse_x_ = 0;
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int Fl_Help_View::mouse_y_ = 0;
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int Fl_Help_View::current_pos_ = 0;
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Fl_Help_View *Fl_Help_View::current_view_ = 0L;
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Fl_Color Fl_Help_View::hv_selection_color_;
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Fl_Color Fl_Help_View::hv_selection_text_color_;
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/*
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* This function must be optimized for speed!
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*/
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void Fl_Help_View::hv_draw(const char *t, int x, int y, int entity_extra_length)
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{
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if (selected && current_view==this && current_pos<selection_last && current_pos>=selection_first) {
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if (selected_ && current_view_==this && current_pos_<selection_last_ && current_pos_>=selection_first_) {
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Fl_Color c = fl_color();
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fl_color(hv_selection_color);
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fl_color(hv_selection_color_);
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int w = (int)fl_width(t);
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if (current_pos+(int)strlen(t)<selection_last)
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if (current_pos_+(int)strlen(t)<selection_last_)
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w += (int)fl_width(' ');
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fl_rectf(x, y+fl_descent()-fl_height(), w, fl_height());
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fl_color(hv_selection_text_color);
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fl_color(hv_selection_text_color_);
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fl_draw(t, x, y);
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fl_color(c);
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} else {
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fl_draw(t, x, y);
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}
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if (draw_mode) {
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if (draw_mode_) {
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int w = (int)fl_width(t);
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if (mouse_x>=x && mouse_x<x+w) {
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if (mouse_y>=y-fl_height()+fl_descent()&&mouse_y<=y+fl_descent()) {
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int f = (int) current_pos;
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if (mouse_x_>=x && mouse_x_<x+w) {
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if (mouse_y_>=y-fl_height()+fl_descent()&&mouse_y_<=y+fl_descent()) {
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int f = (int) current_pos_;
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int l = (int) (f+strlen(t)); // use 'quote_char' to calculate the true length of the HTML string
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if (draw_mode==1) {
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selection_push_first = f;
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selection_push_last = l;
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if (draw_mode_==1) {
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selection_push_first_ = f;
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selection_push_last_ = l;
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} else {
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selection_drag_first = f;
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selection_drag_last = l + entity_extra_length;
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selection_drag_first_ = f;
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selection_drag_last_ = l + entity_extra_length;
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}
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}
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}
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@ -556,11 +565,11 @@ Fl_Help_View::draw()
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if (!value_)
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return;
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if (current_view == this && selected) {
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hv_selection_color = FL_SELECTION_COLOR;
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hv_selection_text_color = fl_contrast(textcolor_, FL_SELECTION_COLOR);
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if (current_view_ == this && selected_) {
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hv_selection_color_ = FL_SELECTION_COLOR;
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hv_selection_text_color_ = fl_contrast(textcolor_, FL_SELECTION_COLOR);
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}
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current_pos = 0;
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current_pos_ = 0;
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// Clip the drawing to the inside of the box...
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fl_push_clip(x() + Fl::box_dx(b), y() + Fl::box_dy(b),
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@ -613,7 +622,7 @@ Fl_Help_View::draw()
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fl_xyline(xx + x() - leftline_, yy + y() + 1,
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xx + x() - leftline_ + ww + xtra_ww);
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}
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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xx += ww;
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if ((fsize + 2) > hh)
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@ -631,7 +640,7 @@ Fl_Help_View::draw()
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if (underline) fl_xyline(xx + x() - leftline_, yy + y() + 1,
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xx + x() - leftline_ + buf.width());
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buf.clear();
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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if (line < 31)
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line ++;
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xx = block->line[line];
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@ -662,7 +671,7 @@ Fl_Help_View::draw()
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if (underline) fl_xyline(xx + x() - leftline_, yy + y() + 1,
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xx + x() - leftline_ + ww);
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xx += ww;
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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}
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needspace = 0;
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@ -673,7 +682,7 @@ Fl_Help_View::draw()
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while (isspace((*ptr)&255))
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ptr ++;
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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}
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}
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@ -705,7 +714,7 @@ Fl_Help_View::draw()
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ptr ++;
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// end of command reached, set the supposed start of printed eord here
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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if (buf.cmp("HEAD"))
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head = 1;
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else if (buf.cmp("BR"))
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@ -964,7 +973,7 @@ Fl_Help_View::draw()
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needspace = 0;
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ptr ++;
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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}
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else if (isspace((*ptr)&255))
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{
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@ -982,7 +991,7 @@ Fl_Help_View::draw()
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}
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ptr ++;
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if (!pre) current_pos = (int) (ptr-value_);
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if (!pre) current_pos_ = (int) (ptr-value_);
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needspace = 1;
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}
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else if (*ptr == '&') // process html entity
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@ -1036,7 +1045,7 @@ Fl_Help_View::draw()
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hv_draw(buf.c_str(), xx + x() - leftline_, yy + y());
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if (underline) fl_xyline(xx + x() - leftline_, yy + y() + 1,
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xx + x() - leftline_ + ww);
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current_pos = (int) (ptr-value_);
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current_pos_ = (int) (ptr-value_);
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}
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}
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@ -2837,7 +2846,7 @@ void Fl_Help_View::follow_link(Fl_Help_Link *linkp)
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/** Removes the current text selection. */
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void Fl_Help_View::clear_selection()
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{
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if (current_view==this)
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if (current_view_==this)
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clear_global_selection();
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}
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/** Selects all the text in the view. */
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@ -2845,18 +2854,18 @@ void Fl_Help_View::select_all()
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{
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clear_global_selection();
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if (!value_) return;
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current_view = this;
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selection_drag_last = selection_last = (int) strlen(value_);
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selected = 1;
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current_view_ = this;
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selection_drag_last_ = selection_last_ = (int) strlen(value_);
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selected_ = 1;
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}
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void Fl_Help_View::clear_global_selection()
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{
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if (selected) redraw();
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selection_push_first = selection_push_last = 0;
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selection_drag_first = selection_drag_last = 0;
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selection_first = selection_last = 0;
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selected = 0;
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if (selected_) redraw();
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selection_push_first_ = selection_push_last_ = 0;
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selection_drag_first_ = selection_drag_last_ = 0;
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selection_first_ = selection_last_ = 0;
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selected_ = 0;
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}
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char Fl_Help_View::begin_selection()
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@ -2865,18 +2874,18 @@ char Fl_Help_View::begin_selection()
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if (!fl_help_view_buffer) fl_help_view_buffer = fl_create_offscreen(1, 1);
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mouse_x = Fl::event_x();
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mouse_y = Fl::event_y();
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draw_mode = 1;
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mouse_x_ = Fl::event_x();
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mouse_y_ = Fl::event_y();
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draw_mode_ = 1;
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current_view = this;
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current_view_ = this;
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fl_begin_offscreen(fl_help_view_buffer);
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draw();
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fl_end_offscreen();
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draw_mode = 0;
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draw_mode_ = 0;
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if (selection_push_last) return 1;
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if (selection_push_last_) return 1;
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else return 0;
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}
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@ -2885,38 +2894,44 @@ char Fl_Help_View::extend_selection()
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if (Fl::event_is_click())
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return 0;
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// printf("old selection_first=%d, selection_last=%d\n",
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// selection_first, selection_last);
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// Give this widget the focus during the selection process. This will
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// deselect other text selection and make sure, we receive the Copy
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// keyboard shortcut.
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if (Fl::focus()!=this)
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Fl::focus(this);
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int sf = selection_first, sl = selection_last;
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// printf("old selection_first_=%d, selection_last_=%d\n",
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// selection_first_, selection_last_);
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selected = 1;
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mouse_x = Fl::event_x();
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mouse_y = Fl::event_y();
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draw_mode = 2;
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int sf = selection_first_, sl = selection_last_;
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selected_ = 1;
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mouse_x_ = Fl::event_x();
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mouse_y_ = Fl::event_y();
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draw_mode_ = 2;
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fl_begin_offscreen(fl_help_view_buffer);
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draw();
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fl_end_offscreen();
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draw_mode = 0;
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draw_mode_ = 0;
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if (selection_push_first < selection_drag_first) {
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selection_first = selection_push_first;
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if (selection_push_first_ < selection_drag_first_) {
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selection_first_ = selection_push_first_;
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} else {
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selection_first = selection_drag_first;
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selection_first_ = selection_drag_first_;
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}
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if (selection_push_last > selection_drag_last) {
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selection_last = selection_push_last;
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if (selection_push_last_ > selection_drag_last_) {
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selection_last_ = selection_push_last_;
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} else {
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selection_last = selection_drag_last;
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selection_last_ = selection_drag_last_;
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}
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// printf("new selection_first=%d, selection_last=%d\n",
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// selection_first, selection_last);
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// printf("new selection_first_=%d, selection_last_=%d\n",
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// selection_first_, selection_last_);
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if (sf!=selection_first || sl!=selection_last) {
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if (sf!=selection_first_ || sl!=selection_last_) {
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// puts("REDRAW!!!\n");
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return 1;
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} else {
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@ -2947,7 +2962,7 @@ static unsigned int command(const char *cmd)
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void Fl_Help_View::end_selection(int clipboard)
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{
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if (!selected || current_view!=this)
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if (!selected_ || current_view_!=this)
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return;
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// convert the select part of our html text into some kind of somewhat readable UTF-8
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// and store it in the selection buffer
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@ -2995,7 +3010,7 @@ void Fl_Help_View::end_selection(int clipboard)
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case CMD('d','d', 0 , 0 ): src = "\n - "; break;
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}
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int n = (int) (s-value_);
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if (src && n>selection_first && n<=selection_last) {
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if (src && n>selection_first_ && n<=selection_last_) {
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while (*src) {
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*d++ = *src++;
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}
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@ -3016,7 +3031,7 @@ void Fl_Help_View::end_selection(int clipboard)
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}
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}
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int n = (int) (s2-value_);
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if (n>selection_first && n<=selection_last) {
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if (n>selection_first_ && n<=selection_last_) {
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if (!pre && c < 256 && isspace(c)) c = ' ';
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if (p != ' ' || c != ' ') {
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if (s2 != s) { // c was an HTML entity
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@ -3026,7 +3041,7 @@ void Fl_Help_View::end_selection(int clipboard)
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}
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p = c;
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}
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if (n>selection_last) break; // stop parsing html after end of selection
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if (n>selection_last_) break; // stop parsing html after end of selection
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}
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*d = 0;
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Fl::copy(txt, (int) strlen(txt), clipboard);
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@ -3034,6 +3049,31 @@ void Fl_Help_View::end_selection(int clipboard)
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free(txt);
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}
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/**
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\brief Check if the user selected text in this view.
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\return 1 if text is selected, 0 if no text is selected
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*/
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int Fl_Help_View::text_selected() {
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if (current_view_==this)
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return selected_;
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else
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return 0;
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}
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/**
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\brief If text is selected in this view, copy it to a clipboard.
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\param[in] clipboard for x11 only, 0=selection buffer, 1=clipboard, 2=both
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\return 1 if text is selected, 0 if no text is selected
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*/
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int Fl_Help_View::copy(int clipboard) {
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if (text_selected()) {
|
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end_selection(clipboard);
|
||||
return 1;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/** Handles events in the widget. */
|
||||
int // O - 1 if we handled it, 0 otherwise
|
||||
Fl_Help_View::handle(int event) // I - Event to handle
|
||||
|
|
@ -3063,6 +3103,20 @@ Fl_Help_View::handle(int event) // I - Event to handle
|
|||
else fl_cursor(FL_CURSOR_DEFAULT);
|
||||
return 1;
|
||||
case FL_PUSH:
|
||||
if (Fl::event_button() == FL_RIGHT_MOUSE) {
|
||||
rmb_menu[0].label(copy_menu_text);
|
||||
if (text_selected())
|
||||
rmb_menu[0].activate();
|
||||
else
|
||||
rmb_menu[0].deactivate();
|
||||
fl_cursor(FL_CURSOR_DEFAULT);
|
||||
const Fl_Menu_Item *mi = rmb_menu->popup(Fl::event_x(), Fl::event_y());
|
||||
if (mi) switch (mi->argument()) {
|
||||
case 1:
|
||||
copy();
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (Fl_Group::handle(event)) return 1;
|
||||
linkp = find_link(xx, yy);
|
||||
if (linkp) {
|
||||
|
|
@ -3084,7 +3138,7 @@ Fl_Help_View::handle(int event) // I - Event to handle
|
|||
}
|
||||
return 1;
|
||||
}
|
||||
if (current_view==this && selection_push_last) {
|
||||
if (current_view_==this && selection_push_last_) {
|
||||
if (extend_selection()) redraw();
|
||||
fl_cursor(FL_CURSOR_INSERT);
|
||||
return 1;
|
||||
|
|
@ -3100,7 +3154,7 @@ Fl_Help_View::handle(int event) // I - Event to handle
|
|||
linkp = 0;
|
||||
return 1;
|
||||
}
|
||||
if (current_view==this && selection_push_last) {
|
||||
if (current_view_==this && selection_push_last_) {
|
||||
end_selection();
|
||||
return 1;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue