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-rw-r--r--eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/common/layout/relative/MoveHandler.java299
1 files changed, 0 insertions, 299 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/common/layout/relative/MoveHandler.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/common/layout/relative/MoveHandler.java
deleted file mode 100644
index 0fa915d81..000000000
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/common/layout/relative/MoveHandler.java
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Copyright (C) 2011 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.common.layout.relative;
-
-import static com.android.ide.common.api.MarginType.NO_MARGIN;
-import static com.android.ide.common.api.SegmentType.BASELINE;
-import static com.android.ide.common.api.SegmentType.BOTTOM;
-import static com.android.ide.common.api.SegmentType.CENTER_HORIZONTAL;
-import static com.android.ide.common.api.SegmentType.CENTER_VERTICAL;
-import static com.android.ide.common.api.SegmentType.LEFT;
-import static com.android.ide.common.api.SegmentType.RIGHT;
-import static com.android.ide.common.api.SegmentType.TOP;
-import static com.android.SdkConstants.ATTR_ID;
-
-import static java.lang.Math.abs;
-
-import com.android.SdkConstants;
-import static com.android.SdkConstants.ANDROID_URI;
-import com.android.ide.common.api.DropFeedback;
-import com.android.ide.common.api.IClientRulesEngine;
-import com.android.ide.common.api.IDragElement;
-import com.android.ide.common.api.INode;
-import com.android.ide.common.api.Rect;
-import com.android.ide.common.api.Segment;
-import com.android.ide.common.layout.BaseLayoutRule;
-import com.android.ide.common.layout.relative.DependencyGraph.ViewData;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * A {@link MoveHandler} is a {@link GuidelineHandler} which handles move and drop
- * gestures, and offers guideline suggestions and snapping.
- * <p>
- * Unlike the {@link ResizeHandler}, the {@link MoveHandler} looks for matches for all
- * different segment types -- the left edge, the right edge, the baseline, the center
- * edges, and so on -- and picks the best among these.
- */
-public class MoveHandler extends GuidelineHandler {
- private int mDraggedBaseline;
-
- /**
- * Creates a new {@link MoveHandler}.
- *
- * @param layout the layout element the handler is operating on
- * @param elements the elements being dragged in the move operation
- * @param rulesEngine the corresponding {@link IClientRulesEngine}
- */
- public MoveHandler(INode layout, IDragElement[] elements, IClientRulesEngine rulesEngine) {
- super(layout, rulesEngine);
-
- // Compute list of nodes being dragged within the layout, if any
- List<INode> nodes = new ArrayList<INode>();
- for (IDragElement element : elements) {
- ViewData view = mDependencyGraph.getView(element);
- if (view != null) {
- nodes.add(view.node);
- }
- }
- mDraggedNodes = nodes;
-
- mHorizontalDeps = mDependencyGraph.dependsOn(nodes, false /* verticalEdge */);
- mVerticalDeps = mDependencyGraph.dependsOn(nodes, true /* verticalEdge */);
-
- for (INode child : layout.getChildren()) {
- Rect bc = child.getBounds();
- if (bc.isValid()) {
- // First see if this node looks like it's the same as one of the
- // *dragged* bounds
- boolean isDragged = false;
- for (IDragElement element : elements) {
- // This tries to determine if an INode corresponds to an
- // IDragElement, by comparing their bounds.
- if (bc.equals(element.getBounds())) {
- isDragged = true;
- }
- }
-
- if (!isDragged) {
- String id = child.getStringAttr(ANDROID_URI, ATTR_ID);
- // It's okay for id to be null; if you apply a constraint
- // to a node with a missing id we will generate the id
-
- boolean addHorizontal = !mHorizontalDeps.contains(child);
- boolean addVertical = !mVerticalDeps.contains(child);
-
- addBounds(child, id, addHorizontal, addVertical);
- if (addHorizontal) {
- addBaseLine(child, id);
- }
- }
- }
- }
-
- String id = layout.getStringAttr(ANDROID_URI, ATTR_ID);
- addBounds(layout, id, true, true);
- addCenter(layout, id, true, true);
- }
-
- @Override
- protected void snapVertical(Segment vEdge, int x, Rect newBounds) {
- int maxDistance = BaseLayoutRule.getMaxMatchDistance();
- if (vEdge.edgeType == LEFT) {
- int margin = !mSnap ? 0 : abs(newBounds.x - x);
- if (margin > maxDistance) {
- mLeftMargin = margin;
- } else {
- newBounds.x = x;
- }
- } else if (vEdge.edgeType == RIGHT) {
- int margin = !mSnap ? 0 : abs(newBounds.x - (x - newBounds.w));
- if (margin > maxDistance) {
- mRightMargin = margin;
- } else {
- newBounds.x = x - newBounds.w;
- }
- } else if (vEdge.edgeType == CENTER_VERTICAL) {
- newBounds.x = x - newBounds.w / 2;
- } else {
- assert false : vEdge;
- }
- }
-
- // TODO: Consider unifying this with the snapping logic in ResizeHandler
- @Override
- protected void snapHorizontal(Segment hEdge, int y, Rect newBounds) {
- int maxDistance = BaseLayoutRule.getMaxMatchDistance();
- if (hEdge.edgeType == TOP) {
- int margin = !mSnap ? 0 : abs(newBounds.y - y);
- if (margin > maxDistance) {
- mTopMargin = margin;
- } else {
- newBounds.y = y;
- }
- } else if (hEdge.edgeType == BOTTOM) {
- int margin = !mSnap ? 0 : abs(newBounds.y - (y - newBounds.h));
- if (margin > maxDistance) {
- mBottomMargin = margin;
- } else {
- newBounds.y = y - newBounds.h;
- }
- } else if (hEdge.edgeType == CENTER_HORIZONTAL) {
- int margin = !mSnap ? 0 : abs(newBounds.y - (y - newBounds.h / 2));
- if (margin > maxDistance) {
- mTopMargin = margin;
- // or bottomMargin?
- } else {
- newBounds.y = y - newBounds.h / 2;
- }
- } else if (hEdge.edgeType == BASELINE) {
- newBounds.y = y - mDraggedBaseline;
- } else {
- assert false : hEdge;
- }
- }
-
- /**
- * Updates the handler for the given mouse move
- *
- * @param feedback the feedback handler
- * @param elements the elements being dragged
- * @param offsetX the new mouse X coordinate
- * @param offsetY the new mouse Y coordinate
- * @param modifierMask the keyboard modifiers pressed during the drag
- */
- public void updateMove(DropFeedback feedback, IDragElement[] elements,
- int offsetX, int offsetY, int modifierMask) {
- mSnap = (modifierMask & DropFeedback.MODIFIER2) == 0;
-
- Rect firstBounds = elements[0].getBounds();
- INode firstNode = null;
- if (mDraggedNodes != null && mDraggedNodes.size() > 0) {
- // TODO - this isn't quite right; this could be a different node than we have
- // bounds for!
- firstNode = mDraggedNodes.iterator().next();
- firstBounds = firstNode.getBounds();
- }
-
- mBounds = new Rect(offsetX, offsetY, firstBounds.w, firstBounds.h);
- Rect layoutBounds = layout.getBounds();
- if (mBounds.x2() > layoutBounds.x2()) {
- mBounds.x -= mBounds.x2() - layoutBounds.x2();
- }
- if (mBounds.y2() > layoutBounds.y2()) {
- mBounds.y -= mBounds.y2() - layoutBounds.y2();
- }
- if (mBounds.x < layoutBounds.x) {
- mBounds.x = layoutBounds.x;
- }
- if (mBounds.y < layoutBounds.y) {
- mBounds.y = layoutBounds.y;
- }
-
- clearSuggestions();
-
- Rect b = mBounds;
- Segment edge = new Segment(b.y, b.x, b.x2(), null, null, TOP, NO_MARGIN);
- List<Match> horizontalMatches = findClosest(edge, mHorizontalEdges);
- edge = new Segment(b.y2(), b.x, b.x2(), null, null, BOTTOM, NO_MARGIN);
- addClosest(edge, mHorizontalEdges, horizontalMatches);
-
- edge = new Segment(b.x, b.y, b.y2(), null, null, LEFT, NO_MARGIN);
- List<Match> verticalMatches = findClosest(edge, mVerticalEdges);
- edge = new Segment(b.x2(), b.y, b.y2(), null, null, RIGHT, NO_MARGIN);
- addClosest(edge, mVerticalEdges, verticalMatches);
-
- // Match center
- edge = new Segment(b.centerX(), b.y, b.y2(), null, null, CENTER_VERTICAL, NO_MARGIN);
- addClosest(edge, mCenterVertEdges, verticalMatches);
- edge = new Segment(b.centerY(), b.x, b.x2(), null, null, CENTER_HORIZONTAL, NO_MARGIN);
- addClosest(edge, mCenterHorizEdges, horizontalMatches);
-
- // Match baseline
- if (firstNode != null) {
- int baseline = firstNode.getBaseline();
- if (baseline != -1) {
- mDraggedBaseline = baseline;
- edge = new Segment(b.y + baseline, b.x, b.x2(), firstNode, null, BASELINE,
- NO_MARGIN);
- addClosest(edge, mHorizontalEdges, horizontalMatches);
- }
- } else {
- int baseline = feedback.dragBaseline;
- if (baseline != -1) {
- mDraggedBaseline = baseline;
- edge = new Segment(offsetY + baseline, b.x, b.x2(), null, null, BASELINE,
- NO_MARGIN);
- addClosest(edge, mHorizontalEdges, horizontalMatches);
- }
- }
-
- mHorizontalSuggestions = horizontalMatches;
- mVerticalSuggestions = verticalMatches;
- mTopMargin = mBottomMargin = mLeftMargin = mRightMargin = 0;
-
- Match match = pickBestMatch(mHorizontalSuggestions);
- if (match != null) {
- if (mHorizontalDeps.contains(match.edge.node)) {
- match.cycle = true;
- }
-
- // Reset top AND bottom bounds regardless of whether both are bound
- mMoveTop = true;
- mMoveBottom = true;
-
- // TODO: Consider doing the snap logic on all the possible matches
- // BEFORE sorting, in case this affects the best-pick algorithm (since some
- // edges snap and others don't).
- snapHorizontal(match.with, match.edge.at, mBounds);
-
- if (match.with.edgeType == TOP) {
- mCurrentTopMatch = match;
- } else if (match.with.edgeType == BOTTOM) {
- mCurrentBottomMatch = match;
- } else {
- assert match.with.edgeType == CENTER_HORIZONTAL
- || match.with.edgeType == BASELINE : match.with.edgeType;
- mCurrentTopMatch = match;
- }
- }
-
- match = pickBestMatch(mVerticalSuggestions);
- if (match != null) {
- if (mVerticalDeps.contains(match.edge.node)) {
- match.cycle = true;
- }
-
- // Reset left AND right bounds regardless of whether both are bound
- mMoveLeft = true;
- mMoveRight = true;
-
- snapVertical(match.with, match.edge.at, mBounds);
-
- if (match.with.edgeType == LEFT) {
- mCurrentLeftMatch = match;
- } else if (match.with.edgeType == RIGHT) {
- mCurrentRightMatch = match;
- } else {
- assert match.with.edgeType == CENTER_VERTICAL;
- mCurrentLeftMatch = match;
- }
- }
-
- checkCycles(feedback);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 22:08:39 +0000