126 lines
3.1 KiB
C++
126 lines
3.1 KiB
C++
/**
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* @author Edouard DUPIN
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*
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* @copyright 2011, Edouard DUPIN, all right reserved
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*
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* @license BSD v3 (see license file)
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*/
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#include <ewol/widget/Slider.h>
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#include <ewol/widget/Manager.h>
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const char * const ewol::widget::Slider::eventChange = "change";
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#undef __class__
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#define __class__ "Slider"
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static ewol::Widget* create(void) {
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return new ewol::widget::Slider();
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}
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void ewol::widget::Slider::init(ewol::widget::Manager& _widgetManager) {
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_widgetManager.addWidgetCreator(__class__,&create);
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}
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const int32_t dotRadius = 6;
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ewol::widget::Slider::Slider(void) {
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addObjectType("ewol::widget::Slider");
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addEventId(eventChange);
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m_value = 0;
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m_min = 0;
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m_max = 10;
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m_textColorFg = etk::color::black;
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m_textColorBg = etk::color::black;
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m_textColorBg.setA(0x3F);
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setCanHaveFocus(true);
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// Limit event at 1:
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setMouseLimit(1);
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}
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ewol::widget::Slider::~Slider(void) {
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}
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void ewol::widget::Slider::calculateMinMaxSize(void) {
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vec2 minTmp = m_userMinSize.getPixel();
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m_minSize.setValue(etk_max(minTmp.x(), 40),
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etk_max(minTmp.y(), dotRadius*2) );
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markToRedraw();
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}
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void ewol::widget::Slider::setValue(int32_t _val) {
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m_value = etk_max(etk_min(_val, m_max), m_min);
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markToRedraw();
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}
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int32_t ewol::widget::Slider::getValue(void) {
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return m_value;
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}
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void ewol::widget::Slider::setMin(int32_t _val) {
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m_min = _val;
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m_value = etk_max(etk_min(m_value, m_max), m_min);
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markToRedraw();
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}
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void ewol::widget::Slider::setMax(int32_t _val) {
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m_max = _val;
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m_value = etk_max(etk_min(m_value, m_max), m_min);
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markToRedraw();
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}
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void ewol::widget::Slider::onDraw(void) {
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m_draw.draw();
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}
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void ewol::widget::Slider::onRegenerateDisplay(void) {
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if (needRedraw() == false) {
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return;
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}
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// clean the object list ...
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m_draw.clear();
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m_draw.setColor(m_textColorFg);
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// draw a line :
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m_draw.setThickness(1);
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m_draw.setPos(vec3(dotRadius, m_size.y()/2, 0) );
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m_draw.lineTo(vec3(m_size.x()-dotRadius, m_size.y()/2, 0) );
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m_draw.setThickness(0);
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etk::Color<> borderDot = m_textColorFg;
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borderDot.setA(borderDot.a()/2);
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m_draw.setPos(vec3(4+((float)(m_value-m_min)/(float)(m_max-m_min))*(float)(m_size.x()-2*dotRadius), m_size.y()/2, 0) );
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m_draw.setColorBg(borderDot);
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m_draw.circle(dotRadius);
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m_draw.setColorBg(m_textColorFg);
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m_draw.circle(dotRadius/1.6);
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}
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bool ewol::widget::Slider::onEventInput(const ewol::event::Input& _event) {
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vec2 relativePos = relativePosition(_event.getPos());
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//EWOL_DEBUG("Event on Slider ...");
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if (1 == _event.getId()) {
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if( ewol::key::statusSingle == _event.getStatus()
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|| ewol::key::statusMove == _event.getStatus()) {
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// get the new position :
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EWOL_VERBOSE("Event on Slider (" << relativePos.x() << "," << relativePos.y() << ")");
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int32_t oldValue = m_value;
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m_value = m_min + (float)(relativePos.x() - dotRadius) / (float)(m_size.x()-2*dotRadius) * (float)(m_max-m_min);
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m_value = etk_max(etk_min(m_value, m_max), m_min);
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if (oldValue != m_value) {
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EWOL_DEBUG(" new value : " << m_value << " in [" << m_min << ".." << m_max << "]");
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generateEventId(eventChange, std::to_string(m_value));
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markToRedraw();
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}
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return true;
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}
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}
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return false;
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}
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