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#include "widgets.hpp"
#include "gui.hpp"
namespace rack {
ScrollWidget::ScrollWidget() {
container = new Widget();
addChild(container);
horizontalScrollBar = new ScrollBar();
horizontalScrollBar->orientation = ScrollBar::HORIZONTAL;
addChild(horizontalScrollBar);
verticalScrollBar = new ScrollBar();
verticalScrollBar->orientation = ScrollBar::VERTICAL;
addChild(verticalScrollBar);
}
void ScrollWidget::step() {
// Clamp scroll offset
Vec containerCorner = container->getChildrenBoundingBox().getBottomRight();
offset = offset.clamp(Rect(Vec(0, 0), containerCorner.minus(box.size)));
// Resize scroll bars
Vec inner = Vec(box.size.x - verticalScrollBar->box.size.x, box.size.y - horizontalScrollBar->box.size.y);
horizontalScrollBar->box.pos.y = inner.y;
horizontalScrollBar->box.size.x = inner.x;
verticalScrollBar->box.pos.x = inner.x;
verticalScrollBar->box.size.y = inner.y;
// Update the container's positions from the offset
container->box.pos = offset.neg().round();
Widget::step();
}
Widget *ScrollWidget::onMouseMove(Vec pos, Vec mouseRel) {
if (!gFocusedWidget) {
const float arrowSpeed = 50.0;
if (glfwGetKey(gWindow, GLFW_KEY_LEFT) == GLFW_PRESS) {
offset = offset.minus(Vec(1, 0).mult(arrowSpeed));
}
if (glfwGetKey(gWindow, GLFW_KEY_RIGHT) == GLFW_PRESS) {
offset = offset.minus(Vec(-1, 0).mult(arrowSpeed));
}
if (glfwGetKey(gWindow, GLFW_KEY_UP) == GLFW_PRESS) {
offset = offset.minus(Vec(0, 1).mult(arrowSpeed));
}
if (glfwGetKey(gWindow, GLFW_KEY_DOWN) == GLFW_PRESS) {
offset = offset.minus(Vec(0, -1).mult(arrowSpeed));
}
}
return OpaqueWidget::onMouseMove(pos, mouseRel);
}
bool ScrollWidget::onScrollOpaque(Vec scrollRel) {
offset = offset.minus(scrollRel);
return true;
}
} // namespace rack
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