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