--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2016 EfficiOS Inc., Alexandre Montplaisir
+ *
+ * All rights reserved. This program and the accompanying materials are
+ * made available under the terms of the Eclipse Public License v1.0 which
+ * accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *******************************************************************************/
+
+package org.eclipse.tracecompass.internal.provisional.tmf.ui.views.timegraph2;
+
+import org.eclipse.tracecompass.internal.provisional.tmf.core.views.timegraph2.ITimeGraphModelRenderProvider;
+import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
+
+public abstract class TimeGraphModelViewer {
+
+ private static final long UNINITIALIZED = -1;
+
+ private final ITimeGraphModelRenderProvider fModelRenderProvider;
+ private final SignallingContext fSignallingContext;
+
+ private long fFullTimeGraphStartTime = 1;
+ private long fFullTimeGraphEndTime = 1;
+
+ private long fLatestVisibleRangeStartTime = UNINITIALIZED;
+ private long fLatestVisibleRangeEndTime = UNINITIALIZED;
+
+ protected TimeGraphModelViewer(ITimeGraphModelRenderProvider modelRenderProvider) {
+ fModelRenderProvider = modelRenderProvider;
+ fSignallingContext = new SignallingContext(this);
+ }
+
+ public void dispose() {
+ fSignallingContext.dispose();
+ }
+
+ // ------------------------------------------------------------------------
+ // Accessors
+ // ------------------------------------------------------------------------
+
+ public ITimeGraphModelRenderProvider getModelRenderProvider() {
+ return fModelRenderProvider;
+ }
+
+ protected SignallingContext getSignalingContext() {
+ return fSignallingContext;
+ }
+
+ protected long getFullTimeGraphStartTime() {
+ return fFullTimeGraphStartTime;
+ }
+
+ protected long getFullTimeGraphEndTime() {
+ return fFullTimeGraphEndTime;
+ }
+
+ // ------------------------------------------------------------------------
+ // Operations
+ // ------------------------------------------------------------------------
+
+ public final void repaintCurrentArea() {
+ ITmfTrace trace = fSignallingContext.getCurrentTrace();
+ long start = fLatestVisibleRangeStartTime;
+ long end = fLatestVisibleRangeEndTime;
+ if (trace == null || start == UNINITIALIZED || end == UNINITIALIZED) {
+ return;
+ }
+ paintArea(trace, fLatestVisibleRangeStartTime, fLatestVisibleRangeEndTime);
+ }
+
+ public final void seekVisibleRange(long visibleWindowStartTime, long visibleWindowEndTime) {
+ checkWindowTimeRange(visibleWindowStartTime, visibleWindowEndTime);
+
+ seekVisibleRangeImpl(visibleWindowStartTime, visibleWindowEndTime);
+ updateLatestVisibleRange(visibleWindowStartTime, visibleWindowEndTime);
+ }
+
+ protected final void paintArea(ITmfTrace trace, long windowStartTime, long windowEndTime) {
+ checkWindowTimeRange(windowStartTime, windowEndTime);
+
+ paintAreaImpl(trace, windowStartTime, windowEndTime);
+ }
+
+ protected final void drawSelection(long selectionStartTime, long selectionEndTime) {
+ checkWindowTimeRange(selectionStartTime, selectionEndTime);
+
+ drawSelectionImpl(selectionStartTime, selectionEndTime);
+ }
+
+ void updateLatestVisibleRange(long visibleWindowStartTime, long visibleWindowEndTime) {
+ fLatestVisibleRangeStartTime = visibleWindowStartTime;
+ fLatestVisibleRangeEndTime = visibleWindowEndTime;
+ }
+
+ /**
+ * Recompute the total virtual size of the time graph area, and assigns the
+ * given timestamps as the start and end positions.
+ *
+ * All subsquent operations (seek, paint, etc.) that use timestamp expect
+ * these timestamps to be within the range passed here!
+ *
+ * Should be called when the trace changes, or the trace's total time range
+ * is updated (while indexing, or in live cases).
+ */
+ protected void setTimeGraphAreaRange(long fullAreaStartTime, long fullAreaEndTime) {
+ checkTimeRange(fullAreaStartTime, fullAreaEndTime);
+
+ if (fFullTimeGraphStartTime == fullAreaStartTime &&
+ fFullTimeGraphEndTime == fullAreaEndTime) {
+ /* No need to update */
+ return;
+ }
+
+ fFullTimeGraphStartTime = fullAreaStartTime;
+ fFullTimeGraphEndTime = fullAreaEndTime;
+ }
+
+ // ------------------------------------------------------------------------
+ // Template methods
+ // ------------------------------------------------------------------------
+
+ /**
+ * This should be called whenever the visible window moves, including zoom
+ * level changes.
+ */
+ protected abstract void seekVisibleRangeImpl(long visibleWindowStartTime, long visibleWindowEndTime);
+
+ /**
+ * Paint an area of the viewer. This will also update the tree pane
+ * accordingly.
+ *
+ * It is encouraged to actually paint a bit more of the area on both sides,
+ * so that small scrolling and resizing operations do not require fetching
+ * new data to display the area.
+ */
+ protected abstract void paintAreaImpl(ITmfTrace trace, long windowStartTime, long windowEndTime);
+
+ /**
+ * Draw a new selection rectangle. The previous one, if any, will be
+ * removed.
+ */
+ protected abstract void drawSelectionImpl(long selectionStartTime, long selectionEndTime);
+
+ // ------------------------------------------------------------------------
+ // Operations
+ // ------------------------------------------------------------------------
+
+ private static void checkTimeRange(long rangeStart, long rangeEnd) {
+ if (rangeStart > rangeEnd) {
+ throw new IllegalArgumentException("Time range start " + rangeStart + "is after its end time " + rangeEnd); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ if (rangeStart < 0 || rangeEnd < 0) {
+ throw new IllegalArgumentException("One of the time range bounds is negative"); //$NON-NLS-1$
+ }
+ if (rangeStart == Long.MAX_VALUE) {
+ throw new IllegalArgumentException("You are trying to make me believe the range starts at " + //$NON-NLS-1$
+ rangeStart + ". I do not believe you."); //$NON-NLS-1$
+ }
+ if (rangeEnd == Long.MAX_VALUE) {
+ throw new IllegalArgumentException("You are trying to make me believe the range ends at " + //$NON-NLS-1$
+ rangeEnd + ". I do not believe you."); //$NON-NLS-1$
+ }
+ }
+
+ private void checkWindowTimeRange(long windowStartTime, long windowEndTime) {
+ checkTimeRange(windowStartTime, windowEndTime);
+
+ if (windowStartTime < fFullTimeGraphStartTime) {
+ throw new IllegalArgumentException("Requested window start time: " + windowStartTime +
+ " is smaller than trace start time " + fFullTimeGraphStartTime);
+ }
+ if (windowEndTime > fFullTimeGraphEndTime) {
+ throw new IllegalArgumentException("Requested window end time: " + windowEndTime +
+ " is greater than trace end time " + fFullTimeGraphEndTime);
+ }
+ }
+
+}
projects / deliverable / tracecompass.git / blobdiff