70 lines
2 KiB
C++
70 lines
2 KiB
C++
#include "previewcolorgradation.h"
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#include <QVBoxLayout>
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#include <QImage>
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#include <QLabel>
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#include <QColor>
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#include <QPainter>
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#include <QSlider>
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#include <QScrollArea>
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#include <QPushButton>
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#include "Curve.h"
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#include "baseform.h"
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#include "tools.h"
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#include "widgetcurveeditor.h"
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/**************** Preview ****************/
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PreviewColorGradation::PreviewColorGradation(QWidget* parent, ColorGradation* gradation, EnumColorGradationBand band) : QWidget(parent)
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{
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this->gradation = gradation;
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this->band = band;
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}
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void PreviewColorGradation::paintEvent(QPaintEvent*)
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{
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Curve curve;
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QPainter painter(this);
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int width = this->width();
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int height = this->height();
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switch (band)
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{
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case COLORGRADATIONBAND_RED:
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colorGradationGetRedCurve(gradation, &curve);
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break;
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case COLORGRADATIONBAND_GREEN:
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colorGradationGetGreenCurve(gradation, &curve);
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break;
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case COLORGRADATIONBAND_BLUE:
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colorGradationGetBlueCurve(gradation, &curve);
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break;
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default:
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break;
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}
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for (int x = 0; x < width; x++)
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{
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switch (band)
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{
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case COLORGRADATIONBAND_RED:
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painter.setPen(QColor::fromRgbF(curve.getValue((double)x / (double)width), 0.0, 0.0));
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break;
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case COLORGRADATIONBAND_GREEN:
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painter.setPen(QColor::fromRgbF(0.0, curve.getValue((double)x / (double)width), 0.0));
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break;
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case COLORGRADATIONBAND_BLUE:
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painter.setPen(QColor::fromRgbF(0.0, 0.0, curve.getValue((double)x / (double)width)));
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break;
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case COLORGRADATIONBAND_FINAL:
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painter.setPen(colorToQColor(colorGradationGet(gradation, (double)x / (double)width)));
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break;
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}
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painter.drawLine(x, 0, x, height - 1);
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}
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}
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void PreviewColorGradation::mouseReleaseEvent(QMouseEvent*)
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{
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emit clicked();
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}
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