40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#include "keyframedrawing.h"
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#include "project/effect.h"
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#include "project/clip.h"
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#define KEYFRAME_POINT_COUNT 4
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// routine for drawing a keyframe onscreen
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void draw_keyframe(QPainter &p, int type, int x, int y, bool darker, int r, int g, int b) {
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if (darker) {
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r *= 0.625;
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g *= 0.625;
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b *= 0.625;
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}
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p.setPen(QColor(0, 0, 0));
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p.setBrush(QColor(r, g, b));
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switch (type) {
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case EFFECT_KEYFRAME_LINEAR:
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{
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QPoint points[KEYFRAME_POINT_COUNT] = {QPoint(x-KEYFRAME_SIZE, y), QPoint(x, y-KEYFRAME_SIZE), QPoint(x+KEYFRAME_SIZE, y), QPoint(x, y+KEYFRAME_SIZE)};
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p.drawPolygon(points, KEYFRAME_POINT_COUNT);
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}
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break;
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case EFFECT_KEYFRAME_BEZIER:
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p.drawEllipse(QPoint(x, y), KEYFRAME_SIZE, KEYFRAME_SIZE);
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break;
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case EFFECT_KEYFRAME_HOLD:
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p.drawRect(QRect(x - KEYFRAME_SIZE, y - KEYFRAME_SIZE, KEYFRAME_SIZE*2, KEYFRAME_SIZE*2));
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break;
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}
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p.setBrush(Qt::NoBrush);
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}
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// adjusts keyframe's internal time (in clip time) to timeline time
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long adjust_row_keyframe(EffectRow* row, long time, long visible_in) {
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return time-row->parent_effect->parent_clip->clip_in+(row->parent_effect->parent_clip->timeline_in-visible_in);
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}
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