src/WorkArea.h

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 1995 Matthias Ettrich
   8  *           Copyright 1995-2000 The LyX Team.
   9  *
  10  * ======================================================*/
  11
  12 #ifndef WORKAREA_H
  13 #define WORKAREA_H
  14
  15 #ifdef __GNUG__
  16 #pragma interface
  17 #endif
  18
  19 #include <utility>
  20
  21 #include FORMS_H_LOCATION
  22 #include "Painter.h"
  23
  24 class BufferView;
  25
  26 class WorkArea {
  27 public:
  28         ///
  29         WorkArea(BufferView *, int xpos, int ypos, int width, int height);
  30         ///
  31         ~WorkArea();
  32 #ifdef USE_PAINTER
  33         ///
  34         Painter & getPainter() { return painter_; }
  35 #endif
  36         ///
  37         int workWidth() const { return work_area->w; }
  38         ///
  39         int width() const { return work_area->w + scrollbar->w; }
  40         ///
  41         int height() const { return work_area->h; }
  42         ///
  43         int xpos() const { return work_area->x; }
  44         ///
  45         int ypos() const { return work_area->y; }
  46         ///
  47         void resize(int xpos, int ypos, int width, int height);
  48         ///
  49         void redraw() const {
  50                 fl_redraw_object(work_area);
  51                 fl_redraw_object(scrollbar);
  52                 fl_redraw_object(button_down);
  53                 fl_redraw_object(button_up);
  54         }
  55         ///
  56         void setFocus() const;
  57         ///
  58         Window getWin() const { return work_area->form->window; }
  59         ///
  60         bool hasFocus() const { return work_area->focus; }
  61         ///
  62         bool active() const { return work_area->active; }
  63         ///
  64         bool visible() const { return work_area->form->visible; }
  65         ///
  66         void greyOut() const;
  67         ///
  68         void setScrollbar(double pos, double length_fraction) const;
  69         ///
  70         void setScrollbarValue(double y) const { fl_set_slider_value(scrollbar, y); }
  71         ///
  72         void setScrollbarBounds(double, double) const;
  73         ///
  74         void setScrollbarIncrements(float inc) const;
  75         ///
  76         double getScrollbarValue() const {
  77                 return fl_get_slider_value(scrollbar);
  78         }
  79         ///
  80         pair<double, double> getScrollbarBounds() const {
  81                 pair<double, double> p;
  82                 fl_get_slider_bounds(scrollbar, &p.first, &p.second);
  83                 return p;
  84         }
  85         ///
  86         Pixmap getPixmap() const { return workareapixmap; }
  87         ///
  88         //Signal2<long, int> up;
  89         ///
  90         //Signal2<long, int> down;
  91         ///
  92         //Signal1<double> scroll;
  93         ///
  94         //Signal0 expose;
  95         ///
  96         //Signal3<int, int, unsigned int> buttonPress;
  97         ///
  98         //Signal3<int, int, unsigned int> buttonRelease;
  99         ///
 100         //Signal3<int, int, unsigned int> motion;
 101         ///
 102         //Signal0 focus;
 103         ///
 104         //Signal0 unfocus;
 105         ///
 106         //Signal0 enter;
 107         ///
 108         //Signal0 leave;
 109         ///
 110         //Signal3<int, int, unsigned int> doubleclick;
 111         ///
 112         //Signal3<int, int, unsigned int> trippleclick;
 113         ///
 114         //Signal2<Window, XEvent *> selection;
 115 private:
 116         ///
 117         void createPixmap(int, int);
 118         /// xforms callback
 119         static int work_area_handler(FL_OBJECT *, int event,
 120                                      FL_Coord, FL_Coord,
 121                                      int /*key*/, void * xev);
 122         /// xforms callback
 123         static void up_cb(FL_OBJECT *, long);
 124         /// xforms callback
 125         static void down_cb(FL_OBJECT *, long);
 126         /// xforms callback
 127         static void scroll_cb(FL_OBJECT *, long);
 128         ///
 129         FL_OBJECT * backgroundbox;
 130         ///
 131         FL_OBJECT * work_area;
 132         ///
 133         FL_OBJECT * scrollbar;
 134         ///
 135         FL_OBJECT * button_down;
 136         ///
 137         FL_OBJECT * button_up;
 138         ///
 139         BufferView * owner;
 140         /// The pixmap overlay on the workarea
 141         Pixmap workareapixmap;
 142 #ifdef USE_PAINTER
 143         ///
 144         Painter painter_;
 145 #endif
 146         ///
 147         FL_OBJECT * figinset_canvas;
 148 };
 149 #endif