diff options
Diffstat (limited to 'lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java')
| -rw-r--r-- | lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java | 150 |
1 files changed, 149 insertions, 1 deletions
diff --git a/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java b/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java index 52f24d4192..0ec43a6341 100644 --- a/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java +++ b/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/widgets/timegraph/widgets/TimeGraphControl.java @@ -13,6 +13,7 @@ * Patrick Tasse, Ericsson - Refactoring * Geneviève Bastien, École Polytechnique de Montréal - Move code to * provide base classes for time graph view + * Add display of links between items *****************************************************************************/ package org.eclipse.linuxtools.tmf.ui.widgets.timegraph.widgets; @@ -37,6 +38,7 @@ import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphPresentationPro import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.ITimeGraphTreeListener; import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.StateItem; import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.TimeGraphTreeExpansionEvent; +import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ILinkEvent; import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeEvent; import org.eclipse.linuxtools.tmf.ui.widgets.timegraph.model.ITimeGraphEntry; import org.eclipse.swt.SWT; @@ -375,6 +377,16 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe } /** + * Refresh the links (arrows) of this widget + * + * @param events The link events to refresh + * @since 2.1 + */ + public void refreshArrows(List<ILinkEvent> events) { + fItemData.refreshArrows(events); + } + + /** * Adjust the scoll bars */ public void adjustScrolls() { @@ -1174,6 +1186,8 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe // draw items drawItems(bounds, fTimeProvider, fItemData.fExpandedItems, fTopIndex, nameSpace, gc); + drawLinks(bounds, fTimeProvider, fItemData.fLinks, nameSpace, gc); + fTimeGraphProvider.postDrawControl(bounds, gc); int alpha = gc.getAlpha(); gc.setAlpha(100); @@ -1276,7 +1290,6 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe Item item = items[i]; drawItem(item, bounds, timeProvider, i, nameSpace, gc); } - fTimeGraphProvider.postDrawControl(bounds, gc); } /** @@ -1371,6 +1384,131 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe } /** + * Draw the links + * + * @param bounds + * The rectangle of the area + * @param timeProvider + * The time provider + * @param links + * The array items to draw + * @param nameSpace + * The width reserved for the names + * @param gc + * Reference to the SWT GC object + * @since 2.1 + */ + public void drawLinks(Rectangle bounds, ITimeDataProvider timeProvider, + List<ILinkEvent> links, int nameSpace, GC gc) { + for (ILinkEvent event : links) { + drawLink(event, bounds, timeProvider, nameSpace, gc); + } + } + + /** + * Draws the link type events of this item + * + * @param event + * the item to draw + * @param bounds + * the container rectangle + * @param timeProvider + * Time provider + * @param nameSpace + * the name space + * @param gc + * Graphics context + * @since 2.1 + */ + protected void drawLink(ILinkEvent event, Rectangle bounds, ITimeDataProvider timeProvider, int nameSpace, GC gc) { + int srcIndex = fItemData.findItemIndex(event.getEntry()); + int destIndex = fItemData.findItemIndex(event.getDestinationEntry()); + + if ((srcIndex == -1) || (destIndex == -1)) { + return; + } + + Rectangle src = getStatesRect(bounds, srcIndex, nameSpace); + Rectangle dst = getStatesRect(bounds, destIndex, nameSpace); + + int x0 = getXForTime(event.getTime()); + int x1 = getXForTime(event.getTime() + event.getDuration()); + int y0 = src.y + src.height / 2; + int y1 = dst.y + dst.height / 2; + drawArrow(getColorScheme(), event, new Rectangle(x0, y0, x1 - x0, y1 - y0), gc); + } + + /** + * Draw the state (color fill) + * + * @param colors + * Color scheme + * @param event + * Time event for which we're drawing the state + * @param rect + * Where to draw + * @param gc + * Graphics context + * @return true if the state was drawn + * @since 2.1 + */ + protected boolean drawArrow(TimeGraphColorScheme colors, ITimeEvent event, + Rectangle rect, GC gc) { + + int colorIdx = fTimeGraphProvider.getStateTableIndex(event); + if (colorIdx < 0) { + return false; + } + boolean visible = ((rect.height == 0) && (rect.width == 0)) ? false : true; + + if (visible) { + Color stateColor = null; + if (colorIdx < fEventColorMap.length) { + stateColor = fEventColorMap[colorIdx]; + } else { + stateColor = Display.getDefault().getSystemColor(SWT.COLOR_BLACK); + } + + gc.setForeground(stateColor); + gc.setBackground(stateColor); + + /* Draw the arrow */ + gc.drawLine(rect.x, rect.y, rect.x + rect.width, rect.y + rect.height); + drawArrowHead(rect.x, rect.y, rect.x + rect.width, rect.y + rect.height, gc); + + } + fTimeGraphProvider.postDrawEvent(event, rect, gc); + return visible; + } + + /* + * @author Francis Giraldeau + * + * Inspiration: + * http://stackoverflow.com/questions/3010803/draw-arrow-on-line-algorithm + * + * The algorithm was taken from this site, not the code itself + */ + private static void drawArrowHead(int x0, int y0, int x1, int y1, GC gc) + { + int factor = 10; + double cos = 0.9510; + double sin = 0.3090; + int lenx = x1 - x0; + int leny = y1 - y0; + double len = Math.sqrt(lenx * lenx + leny * leny); + + double dx = factor * lenx / len; + double dy = factor * leny / len; + int end1X = (int) Math.round((x1 - (dx * cos + dy * -sin))); + int end1Y = (int) Math.round((y1 - (dx * sin + dy * cos))); + int end2X = (int) Math.round((x1 - (dx * cos + dy * sin))); + int end2Y = (int) Math.round((y1 - (dx * -sin + dy * cos))); + int[] arrow = new int[] { x1, y1, end1X, end1Y, end2X, end2Y, x1, y1 }; + gc.fillPolygon(arrow); + } + + /** * Draw the name of an item. * * @param item @@ -2211,6 +2349,7 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe private Item[] fExpandedItems = new Item[0]; private Item[] fItems = new Item[0]; private ITimeGraphEntry fTraces[] = new ITimeGraphEntry[0]; + private List<ILinkEvent> fLinks = new ArrayList<ILinkEvent>(); private boolean fTraceFilter[] = new boolean[0]; private final ArrayList<ITimeGraphEntry> fFilteredOut = new ArrayList<ITimeGraphEntry>(); @@ -2329,6 +2468,15 @@ public class TimeGraphControl extends TimeGraphBaseControl implements FocusListe refreshData(); } + public void refreshArrows(List<ILinkEvent> events) { + /* If links are null, reset the list */ + if (events != null) { + fLinks = events; + } else { + fLinks = new ArrayList<ILinkEvent>(); + } + } + public ITimeGraphEntry[] getTraces() { return fTraces; } |