91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
/** @file
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* @author Edouard DUPIN
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* @copyright 2011, Edouard DUPIN, all right reserved
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* @license APACHE v2.0 (see license file)
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*/
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#include <appl/debug.h>
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#include <appl/widget/VectorDisplay.h>
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#include <ewol/object/Manager.h>
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#include <etk/tool.h>
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appl::widget::VectorDisplay::VectorDisplay() :
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m_autoDisplay(false),
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m_minVal(-1.0f),
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m_maxVal(1.0f) {
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addObjectType("appl::widget::VectorDisplay");
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}
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void appl::widget::VectorDisplay::init() {
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ewol::Widget::init();
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markToRedraw();
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// set call all time (sample ...).
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getObjectManager().periodicCall.connect(sharedFromThis(), &appl::widget::VectorDisplay::periodicEvent);
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}
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appl::widget::VectorDisplay::~VectorDisplay() {
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}
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void appl::widget::VectorDisplay::setValue(const std::vector<float>& _data) {
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m_data = _data;
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markToRedraw();
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}
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void appl::widget::VectorDisplay::ToggleAuto() {
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if (m_autoDisplay == false) {
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m_autoDisplay = true;
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} else {
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m_autoDisplay = false;
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}
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}
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void appl::widget::VectorDisplay::onDraw() {
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m_draw.draw();
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}
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void appl::widget::VectorDisplay::onRegenerateDisplay() {
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//!< Check if we really need to redraw the display, if not needed, we redraw the previous data ...
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if (needRedraw() == false) {
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return;
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}
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// remove previous data
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m_draw.clear();
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// set background
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m_draw.setColor(etk::color::black);
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m_draw.setPos(vec2(0,0));
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m_draw.rectangleWidth(m_size);
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if (m_data.size() == 0) {
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return;
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}
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// set all the line:
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m_draw.setColor(etk::color::white);
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m_draw.setThickness(1);
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float origin = m_size.y()*0.5f;
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float ratioY = m_size.y() / (m_maxVal - m_minVal);
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float stepX = m_size.x() / (float)m_data.size();
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m_draw.setPos(vec2(0, origin + ratioY*m_data[0]));
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float baseX = 0;
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for (size_t iii=1; iii<m_data.size(); ++iii) {
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m_draw.lineTo(vec2((float)iii*stepX, origin + ratioY*m_data[iii]));
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}
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}
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void appl::widget::VectorDisplay::periodicEvent(const ewol::event::Time& _event) {
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if (m_autoDisplay == false) {
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return;
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}
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for (size_t iii=0; iii<std::max(m_data.size()/200.0f, 50.0f); ++iii) {
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if (m_data.size() > 50) {
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m_data.erase(m_data.begin());
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}
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m_data.push_back(etk::tool::frand(m_minVal, m_maxVal));
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}
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markToRedraw();
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}
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