package timeflow.vis.timeline;
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import timeflow.data.db.*;
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import timeflow.data.time.*;
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import timeflow.model.*;
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import timeflow.vis.Mouseover;
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import timeflow.vis.MouseoverLabel;
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import timeflow.vis.VisualAct;
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import timeflow.util.*;
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import java.awt.*;
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import java.awt.geom.AffineTransform;
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import java.util.*;
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import java.util.List;
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public class TimelineRenderer
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{
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private TimelineVisuals visuals;
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private int dy;
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public TimelineRenderer(TimelineVisuals visuals)
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{
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this.visuals = visuals;
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}
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public void setDY(int dy)
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{
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this.dy = dy;
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}
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public void render(Graphics2D g, Collection<Mouseover> objectLocations)
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{
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AffineTransform old = g.getTransform();
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g.setTransform(AffineTransform.getTranslateInstance(0, -dy));
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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TFModel model = visuals.getModel();
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Display display = model.getDisplay();
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ActDB db = model.getDB();
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if (display.emptyMessage(g, model))
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{
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return;
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}
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// need to check this, because resize events don't (and shouldn't) register with central TFModel.
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visuals.layoutIfChanged();
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java.util.List<VisualAct> visualActs = visuals.getVisualActs();
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if (visualActs == null || visualActs.size() == 0)
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{
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g.drawString("No data", 10, 30);
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return;
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}
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Rectangle bounds = visuals.getBounds();
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boolean colorTrackLabels = db.getField(VirtualField.COLOR) == null || db.getField(VirtualField.COLOR).equals(db.getField(VirtualField.TRACK));
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// draw tracks, if more than 1.
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if (visuals.trackList.size() > 1)
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{
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boolean zebra = true;
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for (TimelineTrack t : visuals.trackList)
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{
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if (zebra)
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{
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g.setColor(display.getColor("timeline.zebra"));
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g.fillRect(bounds.x, t.y0, bounds.width, t.y1 - t.y0);
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}
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zebra = !zebra;
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g.setColor(display.getColor("timeline.grid"));
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g.drawLine(bounds.x, t.y0, bounds.x + bounds.width, t.y0);
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}
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}
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Interval screenInterval = visuals.getViewInterval().subinterval(-.5, 1.5);
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AxisTicMarks tics = AxisTicMarks.histoTics(screenInterval.start, screenInterval.end);
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for (TimelineTrack t : visuals.trackList)
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{
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// now... if not in graph mode, just draw items
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if (visuals.getLayoutStyle() != TimelineVisuals.Layout.GRAPH)//max<(t.y1-t.y0)/20)
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{
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for (VisualAct v : t.visualActs)
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{
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Mouseover o = v.draw(g, null, bounds, display, true, true);
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if (o != null)
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{
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o.y -= dy;
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objectLocations.add(o);
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}
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}
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continue;
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}
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if (true) continue;
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// draw bars. to do so, we make a histogram of visible items.
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t.histogram = new DoubleBag<Long>();
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for (VisualAct v : t.visualActs)
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{
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long time = v.getStart().getTime();
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if (screenInterval.contains(time))
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{
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t.histogram.add(tics.unit.roundDown(v.getStart().getTime()).getTime(), 1);//v.getSize());
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}
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}
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// get max of items.
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double max = t.histogram.getMax();
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// now draw bars on screen.
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Color fg = colorTrackLabels ? model.getDisplay().makeColor(t.label) : Color.gray;
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if (visuals.trackList.size() < 2)
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{
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fg = Color.gray;
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}
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List<Long> keys = t.histogram.unordered();
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Collections.sort(keys);
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for (Long r : keys)
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{
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double num = t.histogram.num(r);
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int x1 = visuals.getTimeScale().toInt(r);
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int x2 = visuals.getTimeScale().toInt(tics.unit.roundUp(r + 1).getTime());
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int barY = t.y1 - (int) (.9 * ((t.y1 - t.y0) * num) / max);
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g.setColor(new Color(230, 230, 230));
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int m = 12;
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g.fillRoundRect(x1 + 3, barY + 3, x2 - x1 - 1, t.y1 - barY, m, m);
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g.setColor(fg);
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g.fillRoundRect(x1, barY, x2 - x1 - 1, t.y1 - barY, m, m);
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MouseoverLabel mouse = new MouseoverLabel("" + Math.round(num), "items", x1, barY, x2 - x1 - 1, t.y1 - barY);
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objectLocations.add(mouse);
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}
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}
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// finally label the tracks. we do this last so that the labels go on top of the data.
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if (visuals.trackList.size() > 1)
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{
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boolean zebra = false;
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FontMetrics hugeFm = display.hugeFontMetrics();
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for (TimelineTrack t : visuals.trackList)
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{
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// now label the track.
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//if (t.y1 - t.y0 > 23)
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{
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Color fg = colorTrackLabels ? model.getDisplay().makeColor(t.label) : Color.darkGray;
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Color bg = zebra ? display.getColor("timeline.zebra") : Color.white;
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String label = t.label;
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if (label.equals(Display.MISC_CODE))
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{
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label = display.getMiscLabel();
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} else if (label.length() == 0)
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{
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label = display.getNullLabel();
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} else
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{
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label = display.format(label, 20, false);
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}
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// draw background.
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g.setColor(bg);
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int sw = hugeFm.stringWidth(label);
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g.fillRect(0, t.y1 - 20, sw + 8, 19);
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// draw foreground (actual label)
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g.setFont(display.huge());
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g.setColor(fg);
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g.drawString(label, 2, t.y1); // - 5);
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}
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zebra = !zebra;
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}
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}
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g.setTransform(old);
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}
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}
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