waveformview: show in/out points in waveformview

Moved drawing routines to the base class that is used by both TimeRuler and WaveformView
2020-03-15 18:21:14 +11:00
parent a6fb0c7e2b
commit 50061e4e55
10 changed files with 146 additions and 97 deletions
@@ -1,15 +1,23 @@
 #include "seekablewidget.h"

 #include <QMouseEvent>
+#include <QPainter>
 #include <QtMath>

+#include "common/qtutils.h"
+
 SeekableWidget::SeekableWidget(QWidget* parent) :
  TimelineScaledWidget(parent),
  time_(0),
  timeline_points_(nullptr),
  scroll_(0)
 {
+  QFontMetrics fm = fontMetrics();

+  text_height_ = fm.height();
+
+  // Set width of playhead marker
+  playhead_width_ = QFontMetricsWidth(fm, "H");
 }

 void SeekableWidget::ConnectTimelinePoints(TimelinePoints *points)
@@ -108,3 +116,86 @@ void SeekableWidget::SeekToScreenPoint(int screen)

  emit TimeChanged(timestamp);
 }
+
+void SeekableWidget::DrawTimelinePoints(QPainter* p, int marker_bottom)
+{
+  if (!timeline_points()) {
+    return;
+  }
+
+  // Draw in/out workarea
+  if (timeline_points()->workarea()->enabled()) {
+    int workarea_left = qMax(0, TimeToScreen(timeline_points()->workarea()->in()));
+    int workarea_right;
+
+    if (timeline_points()->workarea()->out() == TimelineWorkArea::kResetOut) {
+      workarea_right = width();
+    } else {
+      workarea_right = qMin(width(), TimeToScreen(timeline_points()->workarea()->out()));
+    }
+
+    p->fillRect(workarea_left, 0, workarea_right - workarea_left, height(), palette().highlight());
+  }
+
+  // Draw markers
+  if (marker_bottom > 0 && !timeline_points()->markers()->list().isEmpty()) {
+
+    int marker_top = marker_bottom - text_height_;
+
+    // FIXME: Hardcoded marker colors
+    p->setPen(Qt::black);
+    p->setBrush(Qt::green);
+
+    foreach (TimelineMarker* marker, timeline_points()->markers()->list()) {
+      int marker_left = TimeToScreen(marker->time().in());
+      int marker_right = TimeToScreen(marker->time().out());
+
+      if (marker_left >= width() || marker_right < 0)  {
+        continue;
+      }
+
+      if (marker->time().length() == 0) {
+        // Single point in time marker
+        DrawPlayhead(p, marker_left, marker_bottom);
+      } else {
+        // Marker range
+        int rect_left = qMax(0, marker_left);
+        int rect_right = qMin(width(), marker_right);
+
+        QRect marker_rect(rect_left, marker_top, rect_right - rect_left, marker_bottom - marker_top);
+
+        p->drawRect(marker_rect);
+
+        if (!marker->name().isEmpty()) {
+          p->drawText(marker_rect, marker->name());
+        }
+      }
+    }
+  }
+}
+
+void SeekableWidget::DrawPlayhead(QPainter *p, int x, int y)
+{
+  int half_width = playhead_width_ / 2;
+
+  if (x + half_width < 0 || x - half_width > width()) {
+    return;
+  }
+
+  p->setRenderHint(QPainter::Antialiasing);
+
+  int half_text_height = text_height() / 3;
+
+  QPoint points[] = {
+    QPoint(x, y),
+    QPoint(x - half_width, y - half_text_height),
+    QPoint(x - half_width, y - text_height()),
+    QPoint(x + 1 + half_width, y - text_height()),
+    QPoint(x + 1 + half_width, y - half_text_height),
+    QPoint(x + 1, y),
+  };
+
+  p->drawPolygon(points, 6);
+
+  p->setRenderHint(QPainter::Antialiasing, false);
+}