tal-reverb-2-juce/src/ImageSlider.h

   1 class ImageSlider : public Slider
   2 {
   3 public:
   4
   5         // Curently only supports vertical sliders
   6         ImageSlider(Image image, const int length)
   7                 : Slider("Bitmap Slider"),
   8                 imageKnob(image)
   9         {
  10                 this->length = length;
  11
  12                 setTextBoxStyle(NoTextBox, 0, 0, 0);
  13                 setSliderStyle(LinearVertical);
  14
  15                 frameHeight = imageKnob.getHeight();
  16                 frameWidth = imageKnob.getWidth();
  17
  18                 setRange(0.0f, 1.0f, 0.001f);
  19
  20                 customValueText = false;
  21                 valueTextHeight = 10;
  22
  23                 this->setSliderSnapsToMousePosition(false);
  24         }
  25
  26         void paint(Graphics& g)
  27         {
  28                 double value = (getValue() - getMinimum()) / (getMaximum() - getMinimum());
  29                 g.drawImage(imageKnob, 0, (1.0f - value) * length, frameWidth, frameHeight,
  30                         0, 0, frameWidth, frameHeight);
  31
  32                 g.setColour(Colour((const juce::uint8)10, (const juce::uint8)10, (const juce::uint8)10));
  33                 g.fillRoundedRectangle(8, length + frameHeight - 14, getWidth() - 16, valueTextHeight + 4, 6.0f);
  34
  35                 g.setColour(Colour((const juce::uint8)200, (const juce::uint8)200, (const juce::uint8)200));
  36
  37                 g.setFont(12.0f, Font::plain);
  38                 if (!customValueText)
  39                 {
  40                         valueText = juce::String(getValue(), 2); //  << T("dB");
  41                         g.drawText(valueText, 0, length + frameHeight - 14 + 2, getWidth(), valueTextHeight, juce::Justification::centred, false);
  42                 }
  43                 else
  44                 {
  45                         g.drawText(valueText, 0, length + frameHeight - 14 + 2, getWidth(), valueTextHeight, juce::Justification::centred, false);
  46                 }
  47         }
  48
  49         void setTextValue(juce::String valueText)
  50         {
  51                 this->valueText = valueText;
  52                 customValueText = true;
  53         }
  54
  55 private:
  56         Image imageKnob;
  57         int length;
  58         int frameWidth, frameHeight;
  59
  60         juce::String valueText;
  61         bool customValueText;
  62         int valueTextHeight;
  63 };