private void drawRuler(final GanttRenderingData data) {
ruler.draw(
data.getDurations(),
data.getGraphics(),
data.getGraphics().getClipping().x,
data.getGraphics().getClipping().width);
}
private void drawMarker(final GanttRenderingData data) {
final int markerX = ruler.toScreen(data.getMarker()) + data.getBounds().x / 2;
if (markerX < ruler.min()) {
return;
}
data.getGraphics()
.drawString(
TimeFormat.format(data.getFormatString(), data.getMarker()),
markerX + LABEL_OFFSET_X,
(int) (LANE_HEIGHT * VERIFCAL_MARKER_ADJUST + LEGEND_HEIGHT),
true);
data.getGraphics()
.drawLine(
markerX, LANE_HEIGHT + LEGEND_HEIGHT, markerX, LANE_START + lanes.size() * LANE_HEIGHT);
}
private void drawEmpty(final GanttRenderingData data) {
final Color pushed = data.getGraphics().getBackground();
data.getGraphics()
.setBackground(data.getGraphics().getDevice().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
data.getGraphics().fillRectangle(data.getGraphics().getClipping());
data.getGraphics().drawText("No Gantt data available", 1, 1);
data.getGraphics().setBackground(pushed);
}
private void drawColumnNames(
final GanttRenderingData data, final Map<String, TaskLaneEntry> lanes, final GanttDraw draw) {
for (final Entry<String, TaskLaneEntry> entry : lanes.entrySet()) {
final TaskLaneEntry taskEntry = entry.getValue();
final RGB rgb = data.getColorMap().getColor(taskEntry.getUser());
final Color resourceUserColor = new Color(data.getGraphics().getDevice(), rgb);
taskEntry.setBackgroundColor(resourceUserColor);
final int laneYStart = LANE_START + taskEntry.getLane() * LANE_HEIGHT;
final Rectangle resourceBoundingBox =
new Rectangle(0, laneYStart - data.getScrollOffset(), data.getSashXPos(), LANE_HEIGHT);
taskEntry.setBounds(resourceBoundingBox);
draw.add(taskEntry);
}
}
private void drawGrid(final GanttRenderingData data, final int laneIndex) {
final Rectangle clipping = data.getGraphics().getClipping();
data.getGraphics().setClipping(getDataArea(data));
data.getGraphics().setClipping(clipping);
data.getGraphics().setForeground(Display.getDefault().getSystemColor(SWT.COLOR_GRAY));
final int x2 = data.getBounds().x + data.getBounds().width;
int y = LANE_START - data.getScrollOffset();
data.getGraphics().drawLine(0, y, x2, y);
for (int i = 1; i <= laneIndex; i++) {
y += LANE_HEIGHT;
data.getGraphics().drawLine(0, y, x2, y);
}
data.getGraphics().drawLine(-1, LANE_START, -1, LANE_START + laneIndex * LANE_HEIGHT);
}
@SuppressWarnings("unchecked")
GanttDraw draw(final GanttRenderingData data, final boolean drawB) {
// Check pre-conditions JEKB ugly fix data.getDurations() == null
if ((data.getDurations() == null) || (data.getDurations().size() < 1)) {
drawEmpty(data);
return ClassicGantRenderer.EMPTY_GANTT_DRAW;
}
Collections.sort(data.getDurations());
// compute a ruler only when drawB is drawn.
if (drawB) {
ruler = computeScaler(data);
}
// Graphics Setup
data.getGraphics().setAntialias(SWT.OFF);
data.getGraphics().setFont(font);
final GanttDraw ganttDrawData = new GanttDraw(data.getGraphics(), ruler);
lanes.clear();
int laneIndex = 0;
for (final IArtifact user : data.getTasks()) {
final TaskLaneEntry entry = new TaskLaneEntry(user);
entry.setLane(laneIndex++);
lanes.put(user.getName(), entry);
}
drawColumnNames(data, lanes, ganttDrawData);
drawGrid(data, laneIndex);
final Rectangle clipping = data.getGraphics().getClipping();
data.getGraphics()
.setClipping(
new Rectangle(
data.getBounds().x,
data.getBounds().y,
data.getBounds().width,
data.getBounds().height));
this.typeReg = TypeRegistry.getInstance();
data.getGraphics().setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
data.getGraphics().setBackground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
if (drawB) {
drawDurations(data, ganttDrawData);
drawMarker(data);
drawRuler(data);
LegendRenderer r = new LegendRenderer();
r.drawLegend(
data.getGraphics().getClipping().width / 2,
Graphics.valueOf(data.getGraphics()),
colorByTypeMap,
false);
}
data.getGraphics().setClipping(clipping);
data.setDrawnSize(
new Point(
data.getBounds().width,
ClassicGantRenderer.LANE_START + (lanes.size() + 1) * ClassicGantRenderer.LANE_HEIGHT));
// if (drawB) {
ganttDrawData.setBounds(SWTUtil.convert(data.getBounds()));
// } else {
// }
return ganttDrawData;
}
