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authorAndré Nusser <andre.nusser@googlemail.com>2017-04-16 17:22:07 +0200
committerAndré Nusser <andre.nusser@googlemail.com>2017-04-16 17:22:07 +0200
commit730597ff95d5dcfa924bc0bb951c02873ccffa8c (patch)
tree67904609dc1704e7018740c37060380c82053cea /plugingui/slider.cc
parented574c98818610c929ff1ea646a3ac84f7efe7b8 (diff)
Add new texture for Slider and adapt functionality.
Diffstat (limited to 'plugingui/slider.cc')
-rw-r--r--plugingui/slider.cc109
1 files changed, 52 insertions, 57 deletions
diff --git a/plugingui/slider.cc b/plugingui/slider.cc
index 16808bb..439e104 100644
--- a/plugingui/slider.cc
+++ b/plugingui/slider.cc
@@ -38,67 +38,42 @@ Slider::Slider(Widget* parent) : Widget(parent)
{
state = State::up;
- currentValue = 0.0;
+ current_value = 0.0;
maximum = 1.0;
minimum = 0.0;
}
-void Slider::setValue(float newValue)
+void Slider::setValue(float new_value)
{
- currentValue = newValue;
+ current_value = new_value;
redraw();
clickNotifier();
}
-float Slider::value()
+float Slider::value() const
{
- return currentValue;
+ return current_value;
}
void Slider::repaintEvent(RepaintEvent* repaintEvent)
{
Painter p(*this);
+ p.clear();
- float alpha = 0.8;
+ auto inner_offset = (current_value / maximum) * getControlWidth();
+ auto button_x = button_offset + inner_offset - (button.width() / 2);
+ auto button_y = (height() - button.height())/2;
- int xpos = (int)((currentValue / maximum) * (float)(width() - 1));
+ // draw bar
+ bar.setSize(width(), height());
+ p.drawImage(0, 0, bar);
- if(hasKeyboardFocus())
- {
- p.setColour(Colour(0.6, alpha));
- }
- else
- {
- p.setColour(Colour(0.5, alpha));
- }
-
- p.drawFilledRectangle(0, 0, width(), height());
-
- // p.setColour(Colour(0.1, alpha));
- // p.drawRectangle(0,0,width()-1,height() - 1);
+ // draw inner bar
+ inner_bar_green.setSize(button_x - bar_boundary, height() - 2*bar_boundary);
+ p.drawImage(bar_boundary, bar_boundary, inner_bar_green);
- p.setColour(Colour(1, 0, 0, alpha));
- p.drawLine(xpos, 0, xpos, height() - 1);
-
- // p.setColour(Colour(0.8, alpha));
- // switch(state) {
- // case State::up:
- // p.drawLine(0, 0, 0, height() - 1);
- // p.drawLine(0, 0, width() - 1, 0);
- // break;
- // case State::down:
- // p.drawLine(width() - 1, 0, width() - 1, height() - 1);
- // p.drawLine(width() - 1, height() - 1, 0, height() - 1);
- // break;
- //}
-
- p.setColour(Colour(0.3, alpha));
-
- if(height() > 0 && width() > 0)
- {
- p.drawPoint(0, height() - 1);
- p.drawPoint(width() - 1, 0);
- }
+ // draw button
+ p.drawImage(button_x, button_y, button);
}
void Slider::buttonEvent(ButtonEvent* buttonEvent)
@@ -112,16 +87,16 @@ void Slider::buttonEvent(ButtonEvent* buttonEvent)
if(buttonEvent->direction == Direction::down)
{
state = State::down;
- currentValue = maximum / (float)width() * (float)buttonEvent->x;
+ recomputeCurrentValue(buttonEvent->x);
- if(currentValue < 0)
+ if(current_value < 0)
{
- currentValue = 0;
+ current_value = 0;
}
- if(currentValue > 1)
+ if(current_value > 1)
{
- currentValue = 1;
+ current_value = 1;
}
redraw();
@@ -131,16 +106,16 @@ void Slider::buttonEvent(ButtonEvent* buttonEvent)
if(buttonEvent->direction == Direction::up)
{
state = State::up;
- currentValue = maximum / (float)width() * (float)buttonEvent->x;
+ recomputeCurrentValue(buttonEvent->x);
- if(currentValue < 0)
+ if(current_value < 0)
{
- currentValue = 0;
+ current_value = 0;
}
- if(currentValue > 1)
+ if(current_value > 1)
{
- currentValue = 1;
+ current_value = 1;
}
redraw();
@@ -152,16 +127,16 @@ void Slider::mouseMoveEvent(MouseMoveEvent* mouseMoveEvent)
{
if(state == State::down)
{
- currentValue = maximum / (float)width() * (float)mouseMoveEvent->x;
+ recomputeCurrentValue(mouseMoveEvent->x);
- if(currentValue < 0)
+ if(current_value < 0)
{
- currentValue = 0;
+ current_value = 0;
}
- if(currentValue > 1)
+ if(current_value > 1)
{
- currentValue = 1;
+ current_value = 1;
}
redraw();
@@ -169,4 +144,24 @@ void Slider::mouseMoveEvent(MouseMoveEvent* mouseMoveEvent)
}
}
+std::size_t Slider::getControlWidth() const
+{
+ if (width() < 2*button_offset) {
+ return 0;
+ }
+
+ return width() - 2*button_offset;
+}
+
+void Slider::recomputeCurrentValue(float x)
+{
+ if (x < button_offset) {
+ current_value = 0;
+ }
+ else {
+ current_value = (maximum / getControlWidth()) * (x - button_offset);
+ }
+
+}
+
} // GUI::