lib/gui/eslider.cpp

   1 #include <lib/gui/eslider.h>
   2
   3 eSlider::eSlider(eWidget *parent)
   4         :eWidget(parent), m_have_border_color(false), m_start(0), m_orientation(orHorizontal), m_border_width(0)
   5 {
   6 }
   7
   8 void eSlider::setPixmap(gPixmap *pixmap)
   9 {
  10         m_pixmap = pixmap;
  11         event(evtChangedSlider);
  12 }
  13
  14 void eSlider::setBorderWidth(int pixel)
  15 {
  16         m_border_width=pixel;
  17         invalidate();
  18 }
  19
  20 void eSlider::setBorderColor(const gRGB &color)
  21 {
  22         m_border_color=color;
  23         m_have_border_color=true;
  24         invalidate();
  25 }
  26
  27 int eSlider::event(int event, void *data, void *data2)
  28 {
  29         switch (event)
  30         {
  31         case evtPaint:
  32         {
  33                 ePtr<eWindowStyle> style;
  34                 gPainter &painter = *(gPainter*)data2;
  35
  36                 eSize s(size());
  37
  38                 getStyle(style);
  39                 style->paintBackground(painter, ePoint(0,0), s);
  40                 style->setStyle(painter, eWindowStyle::styleLabel); // TODO - own style
  41
  42                 if (!m_pixmap)
  43                         painter.fill(m_currently_filled);
  44                 else
  45                         painter.blit(m_pixmap, ePoint(0, 0), m_currently_filled.extends);
  46
  47 // border
  48                 if (m_have_border_color)
  49                         painter.setForegroundColor(m_border_color);
  50                 painter.fill(eRect(0, 0, s.width(), m_border_width));
  51                 painter.fill(eRect(0, m_border_width, m_border_width, s.height()-m_border_width));
  52                 painter.fill(eRect(m_border_width, s.height()-m_border_width, s.width()-m_border_width, m_border_width));
  53                 painter.fill(eRect(s.width()-m_border_width, m_border_width, m_border_width, s.height()-m_border_width));
  54
  55                 return 0;
  56         }
  57         case evtChangedSlider:
  58         {
  59                 int num_pix = 0, start_pix = 0;
  60                 gRegion old_currently_filled = m_currently_filled;
  61
  62                 int pixsize = (m_orientation == orHorizontal) ? size().width() : size().height();
  63
  64                 if (m_min < m_max)
  65                 {
  66                         num_pix = pixsize * (m_value - m_start) / (m_max - m_min);
  67                         start_pix = pixsize * m_start / (m_max - m_min);
  68                 }
  69
  70                 if  (start_pix < 0)
  71                 {
  72                         num_pix += start_pix;
  73                         start_pix = 0;
  74                 }
  75
  76                 if (num_pix < 0)
  77                         num_pix = 0;
  78
  79                 if (m_orientation == orHorizontal)
  80                         m_currently_filled = eRect(start_pix, 0, num_pix, pixsize);
  81                 else
  82                         m_currently_filled = eRect(0, start_pix, pixsize, num_pix);
  83
  84                         // redraw what *was* filled before and now isn't.
  85                 invalidate(m_currently_filled - old_currently_filled);
  86                         // redraw what wasn't filled before and is now.
  87                 invalidate(old_currently_filled - m_currently_filled);
  88
  89                 return 0;
  90         }
  91         default:
  92                 return eWidget::event(event, data, data2);
  93         }
  94 }
  95
  96 void eSlider::setValue(int value)
  97 {
  98         m_value = value;
  99         event(evtChangedSlider);
 100 }
 101
 102 void eSlider::setStartEnd(int start, int end)
 103 {
 104         m_value = end;
 105         m_start = start;
 106         event(evtChangedSlider);
 107 }
 108
 109 void eSlider::setOrientation(int orientation)
 110 {
 111         m_orientation = orientation;
 112         event(evtChangedSlider);
 113 }
 114
 115 void eSlider::setRange(int min, int max)
 116 {
 117         m_min = min;
 118         m_max = max;
 119         event(evtChangedSlider);
 120 }