136 lines
2.5 KiB
C++
136 lines
2.5 KiB
C++
#include "Slider.h"
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#include "graphics/Graphics.h"
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namespace ui {
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Slider::Slider(Point position, Point size, int steps):
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Component(position, size),
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sliderSteps(steps),
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sliderPosition(0),
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isMouseDown(false),
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col1(0, 0, 0, 0),
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col2(0, 0, 0, 0)
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{
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}
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void Slider::updatePosition(int position)
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{
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if(position < 3)
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position = 3;
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if(position > Size.X-3)
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position = Size.X-3;
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auto fPosition = float(position-3);
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auto fSize = float(Size.X-6);
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float fSliderPosition = (fPosition/fSize)*sliderSteps;//position;//((x-3)/(Size.X-6))*sliderSteps;
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auto newSliderPosition = int(fSliderPosition);
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if(newSliderPosition == sliderPosition)
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return;
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sliderPosition = newSliderPosition;
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if (actionCallback.change)
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{
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actionCallback.change();
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}
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}
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void Slider::OnMouseMoved(int x, int y, int dx, int dy)
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{
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if(isMouseDown)
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{
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updatePosition(x);
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}
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}
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void Slider::OnMouseClick(int x, int y, unsigned button)
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{
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isMouseDown = true;
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updatePosition(x);
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}
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void Slider::OnMouseUp(int x, int y, unsigned button)
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{
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if(isMouseDown)
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{
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isMouseDown = false;
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}
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}
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void Slider::SetColour(Colour col1, Colour col2)
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{
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this->col1 = col1;
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this->col2 = col2;
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bgGradient = Graphics::Gradient({
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{ col1.NoAlpha(), 0.f },
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{ col2.NoAlpha(), 1.f },
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}, Size.X-7);
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}
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int Slider::GetValue()
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{
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return sliderPosition;
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}
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void Slider::SetValue(int value)
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{
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if(value < 0)
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value = 0;
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if(value > sliderSteps)
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value = sliderSteps;
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sliderPosition = value;
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}
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int Slider::GetSteps()
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{
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return sliderSteps;
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}
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void Slider::SetSteps(int steps)
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{
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if(steps < 0)
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steps = 0;
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if(steps < sliderPosition)
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sliderPosition = steps;
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sliderSteps = steps;
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}
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void Slider::Draw(const Point& screenPos)
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{
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Graphics * g = GetGraphics();
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//g->drawrect(screenPos.X, screenPos.Y, Size.X, Size.Y, 255, 255, 255, 255);
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if (bgGradient.size())
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{
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for (int j = 3; j < Size.Y-7; j++)
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{
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for (int i = 3; i < Size.X-7; i++)
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{
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RGB<uint8_t> color = bgGradient[i - 3];
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g->blendpixel(screenPos.X+i+2, screenPos.Y+j+2, color.Red, color.Green, color.Blue, 255);
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}
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}
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}
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g->drawrect(screenPos.X+3, screenPos.Y+3, Size.X-6, Size.Y-6, 255, 255, 255, 255);
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auto fPosition = float(sliderPosition);
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auto fSize = float(Size.X-6);
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auto fSteps = float(sliderSteps);
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auto fSliderX = (fSize/fSteps)*fPosition;//sliderPosition;//((Size.X-6)/sliderSteps)*sliderPosition;
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auto sliderX = int(fSliderX);
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sliderX += 3;
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g->fillrect(screenPos.X+sliderX-2, screenPos.Y+1, 4, Size.Y-2, 20, 20, 20, 255);
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g->drawrect(screenPos.X+sliderX-2, screenPos.Y+1, 4, Size.Y-2, 200, 200, 200, 255);
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}
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} /* namespace ui */
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