osb/source/windowing/StarSliderBar.cpp

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2023-06-20 04:33:09 +00:00
#include "StarSliderBar.hpp"
#include "StarRoot.hpp"
#include "StarAssets.hpp"
#include "StarGuiReader.hpp"
#include "StarImageMetadataDatabase.hpp"
namespace Star {
SliderBarWidget::SliderBarWidget(String const& grid, bool showSpinner)
: m_grid(make_shared<ImageWidget>(grid)),
m_low(0),
m_high(1),
m_delta(1),
m_val(0),
m_updateJog(true),
m_jogDragActive(false),
m_enabled(true) {
auto assets = Root::singleton().assets();
auto imgMetadata = Root::singleton().imageMetadataDatabase();
m_jog = make_shared<ButtonWidget>();
m_jog->setImages(assets->json("/interface.config:slider.jog").toString());
m_jog->setPressedOffset({0, 0});
if (showSpinner) {
GuiReader guiReader;
guiReader.registerCallback("spinner.down", bind(&SliderBarWidget::leftCallback, this));
guiReader.registerCallback("spinner.up", bind(&SliderBarWidget::rightCallback, this));
float rightButtonOffset = imgMetadata->imageSize(assets->json("/interface.config:slider.leftBase").toString())[0];
rightButtonOffset += assets->json("/interface.config:slider.defaultPadding").toInt();
float gridOffset = rightButtonOffset;
rightButtonOffset += imgMetadata->imageSize(grid)[0];
rightButtonOffset += assets->json("/interface.config:slider.defaultPadding").toInt();
// TODO: Make spinners a thing already
Json config = Json::parse(strf(
R"SPINNER(
{
"spinner" : {
"type" : "spinner",
"leftBase" : "%s",
"leftHover" : "%s",
"rightBase" : "%s",
"rightHover" : "%s",
"position" : [0, 0],
"upOffset" : %s
}
}
)SPINNER",
assets->json("/interface.config:slider.leftBase").toString(),
assets->json("/interface.config:slider.leftHover").toString(),
assets->json("/interface.config:slider.rightBase").toString(),
assets->json("/interface.config:slider.rightHover").toString(),
rightButtonOffset));
guiReader.construct(config, this);
m_grid->setPosition(Vec2I(gridOffset, 0));
m_leftButton = fetchChild<ButtonWidget>("spinner.down");
m_rightButton = fetchChild<ButtonWidget>("spinner.up");
}
addChild("grid", m_grid);
addChild("jog", m_jog);
markAsContainer();
disableScissoring();
}
void SliderBarWidget::setJogImages(String const& baseImage, String const& hoverImage, String const& pressedImage, String const& disabledImage) {
m_jog->setImages(baseImage, hoverImage, pressedImage, disabledImage);
}
void SliderBarWidget::setRange(int low, int high, int delta) {
m_low = low;
m_high = high;
m_high = std::max(m_low + 1, m_high);
if (delta <= 0)
m_delta = 1;
else
m_delta = delta;
setVal(m_val);
}
void SliderBarWidget::setRange(Vec2I const& range, int delta) {
setRange(range[0], range[1], delta);
}
void SliderBarWidget::setVal(int val, bool callbackIfChanged) {
bool doCallback = false;
if (m_callback && callbackIfChanged && m_val != val)
doCallback = true;
if (m_val != val)
m_updateJog = true;
m_val = val;
m_val = clamp(m_val, m_low, m_high);
if (doCallback)
m_callback(this);
}
int SliderBarWidget::val() const {
return m_val;
}
void SliderBarWidget::setEnabled(bool enabled) {
if (m_enabled != enabled) {
m_enabled = enabled;
m_jogDragActive = false;
m_jog->setEnabled(enabled);
if (m_rightButton)
m_rightButton->setEnabled(enabled);
if (m_leftButton)
m_leftButton->setEnabled(enabled);
}
}
void SliderBarWidget::setCallback(WidgetCallbackFunc callback) {
m_callback = callback;
}
void SliderBarWidget::update() {
float gridLow = m_grid->position()[0];
float gridHigh = gridLow + m_grid->size()[0];
if (m_jogDragActive) {
auto clampedPos = clamp<float>(m_jogDragPos[0], gridLow, gridHigh);
float clampedPercent = (clampedPos - gridLow) / (gridHigh - gridLow);
setVal(clampedPercent * (m_high - m_low));
}
if (m_updateJog) {
float percent = (float)m_val / (m_high - m_low);
float jogPos = (gridHigh - gridLow) * percent + gridLow - m_jog->size()[0] * 0.5;
m_jog->setPosition(Vec2I(jogPos, 0));
m_updateJog = false;
}
Widget::update();
}
bool SliderBarWidget::sendEvent(InputEvent const& event) {
if (event.is<MouseButtonUpEvent>()) {
blur();
m_jogDragActive = false;
}
if (m_enabled) {
if (event.is<MouseButtonDownEvent>()) {
if (m_jog->inMember(*context()->mousePosition(event))) {
focus();
m_jogDragPos = *context()->mousePosition(event) - screenPosition();
m_jogDragActive = true;
}
}
if (event.is<MouseMoveEvent>()) {
if (m_jogDragActive)
m_jogDragPos = *context()->mousePosition(event) - screenPosition();
}
}
return Widget::sendEvent(event);
}
void SliderBarWidget::leftCallback() {
setVal(std::max(m_low, m_val - m_delta));
}
void SliderBarWidget::rightCallback() {
setVal(std::min(m_high, m_val + m_delta));
}
}