src/frontends/qt4/GuiSetBorder.h

   1 // -*- C++ -*-
   2 /**
   3  * \file GuiSetBorder.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Edwin Leuven
   8  * \author John Levon
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #ifndef GUISETBORDER_H
  14 #define GUISETBORDER_H
  15
  16 #include <QWidget>
  17 #include <QPixmap>
  18
  19 class QColor;
  20 class QMouseEvent;
  21 class QPaintEvent;
  22
  23 //namespace lyx {
  24
  25 class GuiSetBorder : public QWidget
  26 {
  27         Q_OBJECT
  28 public:
  29         GuiSetBorder(QWidget * parent = 0, Qt::WindowFlags fl = 0);
  30
  31         // We need tristate for multi-cell selection
  32         enum BorderState {
  33                 LINE_UNSET,
  34                 LINE_SET,
  35                 LINE_UNDECIDED,
  36                 LINE_UNDEF
  37         };
  38
  39         BorderState getLeft();
  40         BorderState getRight();
  41         BorderState getTop();
  42         BorderState getBottom();
  43
  44         bool leftLineSet() { return getLeft() ==  LINE_SET; }
  45         bool rightLineSet() { return getRight() ==  LINE_SET; }
  46         bool topLineSet() { return getTop() ==  LINE_SET; }
  47         bool bottomLineSet() { return getBottom() ==  LINE_SET; }
  48
  49         bool leftLineUnset() { return getLeft() ==  LINE_UNSET; }
  50         bool rightLineUnset() { return getRight() ==  LINE_UNSET; }
  51         bool topLineUnset() { return getTop() ==  LINE_UNSET; }
  52         bool bottomLineUnset() { return getBottom() ==  LINE_UNSET; }
  53
  54 Q_SIGNALS:
  55         void rightSet();
  56         void leftSet();
  57         void topSet();
  58         void bottomSet();
  59         void clicked();
  60
  61 public Q_SLOTS:
  62         void setLeftEnabled(bool);
  63         void setRightEnabled(bool);
  64         void setTopEnabled(bool);
  65         void setBottomEnabled(bool);
  66         void setLeft(BorderState);
  67         void setRight(BorderState);
  68         void setTop(BorderState);
  69         void setBottom(BorderState);
  70         void setAll(BorderState);
  71
  72 protected:
  73         void mousePressEvent(QMouseEvent * e);
  74         void paintEvent(QPaintEvent * e);
  75
  76 private:
  77         void init();
  78
  79         void drawLine(QColor const & col, int x, int y, int x2, int y2);
  80
  81         void drawLeft(BorderState);
  82         void drawRight(BorderState);
  83         void drawTop(BorderState);
  84         void drawBottom(BorderState);
  85
  86         class Border {
  87         public:
  88                 Border() : set(LINE_SET), enabled(true) {}
  89                 BorderState set;
  90                 bool enabled;
  91         };
  92
  93         Border left_;
  94         Border right_;
  95         Border top_;
  96         Border bottom_;
  97
  98         int m;
  99         int l;
 100         int w;
 101         int h;
 102
 103         QPixmap buffer;
 104 };
 105
 106
 107 //} // namespace lyx
 108
 109 #endif // GUISETBORDER_H