diff options
Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SelectionOverlay.java')
| -rw-r--r-- | eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SelectionOverlay.java | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SelectionOverlay.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SelectionOverlay.java deleted file mode 100644 index 97d048108..000000000 --- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/SelectionOverlay.java +++ /dev/null @@ -1,247 +0,0 @@ -/* - * Copyright (C) 2010 The Android Open Source Project - * - * Licensed under the Eclipse Public License, Version 1.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.eclipse.org/org/documents/epl-v10.php - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.ide.eclipse.adt.internal.editors.layout.gle2; - -import com.android.ide.common.api.DrawingStyle; -import com.android.ide.common.api.IGraphics; -import com.android.ide.common.api.INode; -import com.android.ide.common.api.Margins; -import com.android.ide.common.api.Rect; -import com.android.ide.eclipse.adt.internal.editors.layout.gre.NodeProxy; -import com.android.ide.eclipse.adt.internal.editors.layout.gre.RulesEngine; - -import org.eclipse.swt.graphics.GC; - -import java.util.ArrayList; -import java.util.Collections; -import java.util.HashSet; -import java.util.List; -import java.util.Set; - -/** - * The {@link SelectionOverlay} paints the current selection as an overlay. - */ -public class SelectionOverlay extends Overlay { - private final LayoutCanvas mCanvas; - private boolean mHidden; - - /** - * Constructs a new {@link SelectionOverlay} tied to the given canvas. - * - * @param canvas the associated canvas - */ - public SelectionOverlay(LayoutCanvas canvas) { - mCanvas = canvas; - } - - /** - * Set whether the selection overlay should be hidden. This is done during some - * gestures like resize where the new bounds could be confused with the current - * selection bounds. - * - * @param hidden when true, hide the selection bounds, when false, unhide. - */ - public void setHidden(boolean hidden) { - mHidden = hidden; - } - - /** - * Paints the selection. - * - * @param selectionManager The {@link SelectionManager} holding the - * selection. - * @param gcWrapper The graphics context wrapper for the layout rules to use. - * @param gc The SWT graphics object - * @param rulesEngine The {@link RulesEngine} holding the rules. - */ - public void paint(SelectionManager selectionManager, GCWrapper gcWrapper, - GC gc, RulesEngine rulesEngine) { - if (mHidden) { - return; - } - - List<SelectionItem> selections = selectionManager.getSelections(); - int n = selections.size(); - if (n > 0) { - List<NodeProxy> selectedNodes = new ArrayList<NodeProxy>(); - boolean isMultipleSelection = n > 1; - for (SelectionItem s : selections) { - if (s.isRoot()) { - // The root selection is never painted - continue; - } - - NodeProxy node = s.getNode(); - if (node != null) { - paintSelection(gcWrapper, gc, s, isMultipleSelection); - selectedNodes.add(node); - } - } - - if (selectedNodes.size() > 0) { - paintSelectionFeedback(gcWrapper, selectedNodes, rulesEngine); - } else { - CanvasViewInfo root = mCanvas.getViewHierarchy().getRoot(); - if (root != null) { - NodeProxy parent = mCanvas.getNodeFactory().create(root); - rulesEngine.callPaintSelectionFeedback(gcWrapper, - parent, Collections.<INode>emptyList(), root.getViewObject()); - } - } - - if (n == 1) { - NodeProxy node = selections.get(0).getNode(); - if (node != null) { - paintHints(gcWrapper, node, rulesEngine); - } - } - } else { - CanvasViewInfo root = mCanvas.getViewHierarchy().getRoot(); - if (root != null) { - NodeProxy parent = mCanvas.getNodeFactory().create(root); - rulesEngine.callPaintSelectionFeedback(gcWrapper, - parent, Collections.<INode>emptyList(), root.getViewObject()); - } - } - } - - /** Paint hint for current selection */ - private void paintHints(GCWrapper gcWrapper, NodeProxy node, RulesEngine rulesEngine) { - INode parent = node.getParent(); - if (parent instanceof NodeProxy) { - NodeProxy parentNode = (NodeProxy) parent; - List<String> infos = rulesEngine.callGetSelectionHint(parentNode, node); - if (infos != null && infos.size() > 0) { - gcWrapper.useStyle(DrawingStyle.HELP); - - Rect b = mCanvas.getImageOverlay().getImageBounds(); - if (b == null) { - return; - } - - // Compute the location to display the help. This is done in - // layout coordinates, so we need to apply the scale in reverse - // when making pixel margins - // TODO: We could take the Canvas dimensions into account to see - // where there is more room. - // TODO: The scrollbars should take the presence of hint text - // into account. - double scale = mCanvas.getScale(); - int x, y; - if (b.w > b.h) { - x = (int) (b.x + 3 / scale); - y = (int) (b.y + b.h + 6 / scale); - } else { - x = (int) (b.x + b.w + 6 / scale); - y = (int) (b.y + 3 / scale); - } - gcWrapper.drawBoxedStrings(x, y, infos); - } - } - } - - private void paintSelectionFeedback(GCWrapper gcWrapper, List<NodeProxy> nodes, - RulesEngine rulesEngine) { - // Add fastpath for n=1 - - // Group nodes into parent/child groups - Set<INode> parents = new HashSet<INode>(); - for (INode node : nodes) { - INode parent = node.getParent(); - if (/*parent == null || */parent instanceof NodeProxy) { - NodeProxy parentNode = (NodeProxy) parent; - parents.add(parentNode); - } - } - ViewHierarchy viewHierarchy = mCanvas.getViewHierarchy(); - for (INode parent : parents) { - List<INode> children = new ArrayList<INode>(); - for (INode node : nodes) { - INode nodeParent = node.getParent(); - if (nodeParent == parent) { - children.add(node); - } - } - CanvasViewInfo viewInfo = viewHierarchy.findViewInfoFor((NodeProxy) parent); - Object view = viewInfo != null ? viewInfo.getViewObject() : null; - - rulesEngine.callPaintSelectionFeedback(gcWrapper, - (NodeProxy) parent, children, view); - } - } - - /** Called by the canvas when a view is being selected. */ - private void paintSelection(IGraphics gc, GC swtGc, SelectionItem item, - boolean isMultipleSelection) { - CanvasViewInfo view = item.getViewInfo(); - if (view.isHidden()) { - return; - } - - NodeProxy selectedNode = item.getNode(); - Rect r = selectedNode.getBounds(); - if (!r.isValid()) { - return; - } - - gc.useStyle(DrawingStyle.SELECTION); - - Margins insets = mCanvas.getInsets(selectedNode.getFqcn()); - int x1 = r.x; - int y1 = r.y; - int x2 = r.x2() + 1; - int y2 = r.y2() + 1; - - if (insets != null) { - x1 += insets.left; - x2 -= insets.right; - y1 += insets.top; - y2 -= insets.bottom; - } - - gc.drawRect(x1, y1, x2, y2); - - // Paint sibling rectangles, if applicable - List<CanvasViewInfo> siblings = view.getNodeSiblings(); - if (siblings != null) { - for (CanvasViewInfo sibling : siblings) { - if (sibling != view) { - r = SwtUtils.toRect(sibling.getSelectionRect()); - gc.fillRect(r); - gc.drawRect(r); - } - } - } - - // Paint selection handles. These are painted in control coordinates on the - // real SWT GC object rather than in layout coordinates on the GCWrapper, - // since we want them to have a fixed size that is independent of the - // screen zoom. - CanvasTransform horizontalTransform = mCanvas.getHorizontalTransform(); - CanvasTransform verticalTransform = mCanvas.getVerticalTransform(); - int radius = SelectionHandle.PIXEL_RADIUS; - int doubleRadius = 2 * radius; - for (SelectionHandle handle : item.getSelectionHandles()) { - int cx = horizontalTransform.translate(handle.centerX); - int cy = verticalTransform.translate(handle.centerY); - - SwtDrawingStyle style = SwtDrawingStyle.of(DrawingStyle.SELECTION); - gc.setAlpha(style.getStrokeAlpha()); - swtGc.fillRectangle(cx - radius, cy - radius, doubleRadius, doubleRadius); - } - } -} |