src/frontends/qt/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  * \author Jürgen Spitzmüller
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #ifndef GUISETBORDER_H
  15 #define GUISETBORDER_H
  16
  17 #include <QWidget>
  18 #include <QPixmap>
  19
  20 class QColor;
  21 class QMouseEvent;
  22 class QPaintEvent;
  23
  24 //namespace lyx {
  25
  26 class GuiSetBorder : public QWidget
  27 {
  28         Q_OBJECT
  29 public:
  30         GuiSetBorder(QWidget * parent = nullptr, Qt::WindowFlags fl = nullptr);
  31
  32         // We need tristate for multi-cell selection
  33         enum BorderState {
  34                 LINE_UNSET,
  35                 LINE_SET,
  36                 LINE_UNDECIDED,
  37                 LINE_UNDEF
  38         };
  39
  40         BorderState getLeft();
  41         BorderState getRight();
  42         BorderState getTop();
  43         BorderState getBottom();
  44         BorderState getTopLeftTrim();
  45         BorderState getTopRightTrim();
  46         BorderState getBottomLeftTrim();
  47         BorderState getBottomRightTrim();
  48
  49         bool leftLineSet() { return getLeft() ==  LINE_SET; }
  50         bool rightLineSet() { return getRight() ==  LINE_SET; }
  51         bool topLineSet() { return getTop() ==  LINE_SET; }
  52         bool bottomLineSet() { return getBottom() ==  LINE_SET; }
  53
  54         bool leftLineUnset() { return getLeft() ==  LINE_UNSET; }
  55         bool rightLineUnset() { return getRight() ==  LINE_UNSET; }
  56         bool topLineUnset() { return getTop() ==  LINE_UNSET; }
  57         bool bottomLineUnset() { return getBottom() ==  LINE_UNSET; }
  58
  59         bool topLineLTSet() { return getTopLeftTrim() ==  LINE_SET; }
  60         bool bottomLineLTSet() { return getBottomLeftTrim() ==  LINE_SET; }
  61         bool topLineRTSet() { return getTopRightTrim() ==  LINE_SET; }
  62         bool bottomLineRTSet() { return getBottomRightTrim() ==  LINE_SET; }
  63
  64         bool topLineLTUnset() { return getTopLeftTrim() ==  LINE_UNSET; }
  65         bool bottomLineLTUnset() { return getBottomLeftTrim() ==  LINE_UNSET; }
  66         bool topLineRTUnset() { return getTopRightTrim() ==  LINE_UNSET; }
  67         bool bottomLineRTUnset() { return getBottomRightTrim() ==  LINE_UNSET; }
  68
  69 Q_SIGNALS:
  70         void rightSet();
  71         void leftSet();
  72         void topSet();
  73         void bottomSet();
  74         void topLTSet();
  75         void bottomLTSet();
  76         void topRTSet();
  77         void bottomRTSet();
  78         void clicked();
  79
  80 public Q_SLOTS:
  81         void setLeftEnabled(bool);
  82         void setRightEnabled(bool);
  83         void setTopEnabled(bool);
  84         void setBottomEnabled(bool);
  85         void setTopLeftTrimEnabled(bool);
  86         void setTopRightTrimEnabled(bool);
  87         void setBottomLeftTrimEnabled(bool);
  88         void setBottomRightTrimEnabled(bool);
  89         void setLeft(BorderState);
  90         void setRight(BorderState);
  91         void setTop(BorderState);
  92         void setBottom(BorderState);
  93         void setTopLeftTrim(BorderState);
  94         void setTopRightTrim(BorderState);
  95         void setBottomLeftTrim(BorderState);
  96         void setBottomRightTrim(BorderState);
  97         void setAll(BorderState);
  98
  99 protected:
 100         void mousePressEvent(QMouseEvent * e);
 101         void paintEvent(QPaintEvent * e);
 102
 103 private:
 104         void init();
 105
 106         void drawLine(QColor const & col, int x, int y, int x2, int y2);
 107
 108         void drawLeft(BorderState);
 109         void drawRight(BorderState);
 110         void drawTop(BorderState);
 111         void undrawWideTopLine(bool const right = false);
 112         void drawBottom(BorderState);
 113         void undrawWideBottomLine(bool const right = false);
 114         void drawTopLeftTrim(BorderState);
 115         void drawTopRightTrim(BorderState);
 116         void drawBottomLeftTrim(BorderState);
 117         void drawBottomRightTrim(BorderState);
 118
 119         class Border {
 120         public:
 121                 Border() : set(LINE_SET), enabled(true) {}
 122                 BorderState set;
 123                 bool enabled;
 124         };
 125
 126         Border left_;
 127         Border right_;
 128         Border top_;
 129         Border bottom_;
 130         /// trim areas
 131         Border top_trim_left_;
 132         Border top_trim_right_;
 133         Border bottom_trim_left_;
 134         Border bottom_trim_right_;
 135
 136         int margin;
 137         int corner_length;
 138         int bwidth;
 139         int bheight;
 140
 141         QPixmap buffer;
 142
 143         bool bottom_drawn_wide_;
 144         bool top_drawn_wide_;
 145 };
 146
 147
 148 //} // namespace lyx
 149
 150 #endif // GUISETBORDER_H