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path: root/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java
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Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java')
-rw-r--r--eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java279
1 files changed, 0 insertions, 279 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java
deleted file mode 100644
index 4d51c07de..000000000
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ResizeGesture.java
+++ /dev/null
@@ -1,279 +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.eclipse.adt.internal.editors.layout.gle2;
-
-import com.android.ide.common.api.DropFeedback;
-import com.android.ide.common.api.Rect;
-import com.android.ide.common.api.ResizePolicy;
-import com.android.ide.common.api.SegmentType;
-import com.android.ide.eclipse.adt.internal.editors.layout.gle2.SelectionHandle.Position;
-import com.android.ide.eclipse.adt.internal.editors.layout.gre.NodeProxy;
-import com.android.ide.eclipse.adt.internal.editors.layout.gre.RulesEngine;
-import com.android.utils.Pair;
-
-import org.eclipse.swt.events.KeyEvent;
-import org.eclipse.swt.graphics.GC;
-
-import java.util.Collections;
-import java.util.List;
-
-/**
- * A {@link ResizeGesture} is a gesture for resizing a selected widget. It is initiated
- * by a drag of a {@link SelectionHandle}.
- */
-public class ResizeGesture extends Gesture {
- /** The {@link Overlay} drawn for the gesture feedback. */
- private ResizeOverlay mOverlay;
-
- /** The canvas associated with this gesture. */
- private LayoutCanvas mCanvas;
-
- /** The selection handle we're dragging to perform this resize */
- private SelectionHandle mHandle;
-
- private NodeProxy mParentNode;
- private NodeProxy mChildNode;
- private DropFeedback mFeedback;
- private ResizePolicy mResizePolicy;
- private SegmentType mHorizontalEdge;
- private SegmentType mVerticalEdge;
-
- /**
- * Creates a new marquee selection (selection swiping).
- *
- * @param canvas The canvas where selection is performed.
- * @param item The selected item the handle corresponds to
- * @param handle The handle being dragged to perform the resize
- */
- public ResizeGesture(LayoutCanvas canvas, SelectionItem item, SelectionHandle handle) {
- mCanvas = canvas;
- mHandle = handle;
-
- mChildNode = item.getNode();
- mParentNode = (NodeProxy) mChildNode.getParent();
- mResizePolicy = item.getResizePolicy();
- mHorizontalEdge = getHorizontalEdgeType(mHandle);
- mVerticalEdge = getVerticalEdgeType(mHandle);
- }
-
- @Override
- public void begin(ControlPoint pos, int startMask) {
- super.begin(pos, startMask);
-
- mCanvas.getSelectionOverlay().setHidden(true);
-
- RulesEngine rulesEngine = mCanvas.getRulesEngine();
- Rect newBounds = getNewBounds(pos);
- ViewHierarchy viewHierarchy = mCanvas.getViewHierarchy();
- CanvasViewInfo childInfo = viewHierarchy.findViewInfoFor(mChildNode);
- CanvasViewInfo parentInfo = viewHierarchy.findViewInfoFor(mParentNode);
- Object childView = childInfo != null ? childInfo.getViewObject() : null;
- Object parentView = parentInfo != null ? parentInfo.getViewObject() : null;
- mFeedback = rulesEngine.callOnResizeBegin(mChildNode, mParentNode, newBounds,
- mHorizontalEdge, mVerticalEdge, childView, parentView);
- update(pos);
- mCanvas.getGestureManager().updateMessage(mFeedback);
- }
-
- @Override
- public boolean keyPressed(KeyEvent event) {
- update(mCanvas.getGestureManager().getCurrentControlPoint());
- mCanvas.redraw();
- return true;
- }
-
- @Override
- public boolean keyReleased(KeyEvent event) {
- update(mCanvas.getGestureManager().getCurrentControlPoint());
- mCanvas.redraw();
- return true;
- }
-
- @Override
- public void update(ControlPoint pos) {
- super.update(pos);
- RulesEngine rulesEngine = mCanvas.getRulesEngine();
- Rect newBounds = getNewBounds(pos);
- int modifierMask = mCanvas.getGestureManager().getRuleModifierMask();
- rulesEngine.callOnResizeUpdate(mFeedback, mChildNode, mParentNode, newBounds,
- modifierMask);
- mCanvas.getGestureManager().updateMessage(mFeedback);
- }
-
- @Override
- public void end(ControlPoint pos, boolean canceled) {
- super.end(pos, canceled);
-
- if (!canceled) {
- RulesEngine rulesEngine = mCanvas.getRulesEngine();
- Rect newBounds = getNewBounds(pos);
- rulesEngine.callOnResizeEnd(mFeedback, mChildNode, mParentNode, newBounds);
- }
-
- mCanvas.getSelectionOverlay().setHidden(false);
- }
-
- @Override
- public Pair<Boolean, Boolean> getTooltipPosition() {
- return Pair.of(mHorizontalEdge != SegmentType.TOP, mVerticalEdge != SegmentType.LEFT);
- }
-
- /**
- * For the new mouse position, compute the resized bounds (the bounding rectangle that
- * the view should be resized to). This is not just a width or height, since in some
- * cases resizing will change the x/y position of the view as well (for example, in
- * RelativeLayout or in AbsoluteLayout).
- */
- private Rect getNewBounds(ControlPoint pos) {
- LayoutPoint p = pos.toLayout();
- LayoutPoint start = mStart.toLayout();
- Rect b = mChildNode.getBounds();
- Position direction = mHandle.getPosition();
-
- int x = b.x;
- int y = b.y;
- int w = b.w;
- int h = b.h;
- int deltaX = p.x - start.x;
- int deltaY = p.y - start.y;
-
- if (deltaX == 0 && deltaY == 0) {
- // No move - just use the existing bounds
- return b;
- }
-
- if (mResizePolicy.isAspectPreserving() && w != 0 && h != 0) {
- double aspectRatio = w / (double) h;
- int newW = Math.abs(b.w + (direction.isLeft() ? -deltaX : deltaX));
- int newH = Math.abs(b.h + (direction.isTop() ? -deltaY : deltaY));
- double newAspectRatio = newW / (double) newH;
- if (newH == 0 || newAspectRatio > aspectRatio) {
- deltaY = (int) (deltaX / aspectRatio);
- } else {
- deltaX = (int) (deltaY * aspectRatio);
- }
- }
- if (direction.isLeft()) {
- // The user is dragging the left edge, so the position is anchored on the
- // right.
- int x2 = b.x + b.w;
- int nx1 = b.x + deltaX;
- if (nx1 <= x2) {
- x = nx1;
- w = x2 - x;
- } else {
- w = 0;
- x = x2;
- }
- } else if (direction.isRight()) {
- // The user is dragging the right edge, so the position is anchored on the
- // left.
- int nx2 = b.x + b.w + deltaX;
- if (nx2 >= b.x) {
- w = nx2 - b.x;
- } else {
- w = 0;
- }
- } else {
- assert direction == Position.BOTTOM_MIDDLE || direction == Position.TOP_MIDDLE;
- }
-
- if (direction.isTop()) {
- // The user is dragging the top edge, so the position is anchored on the
- // bottom.
- int y2 = b.y + b.h;
- int ny1 = b.y + deltaY;
- if (ny1 < y2) {
- y = ny1;
- h = y2 - y;
- } else {
- h = 0;
- y = y2;
- }
- } else if (direction.isBottom()) {
- // The user is dragging the bottom edge, so the position is anchored on the
- // top.
- int ny2 = b.y + b.h + deltaY;
- if (ny2 >= b.y) {
- h = ny2 - b.y;
- } else {
- h = 0;
- }
- } else {
- assert direction == Position.LEFT_MIDDLE || direction == Position.RIGHT_MIDDLE;
- }
-
- return new Rect(x, y, w, h);
- }
-
- private static SegmentType getHorizontalEdgeType(SelectionHandle handle) {
- switch (handle.getPosition()) {
- case BOTTOM_LEFT:
- case BOTTOM_RIGHT:
- case BOTTOM_MIDDLE:
- return SegmentType.BOTTOM;
- case LEFT_MIDDLE:
- case RIGHT_MIDDLE:
- return null;
- case TOP_LEFT:
- case TOP_MIDDLE:
- case TOP_RIGHT:
- return SegmentType.TOP;
- default: assert false : handle.getPosition();
- }
- return null;
- }
-
- private static SegmentType getVerticalEdgeType(SelectionHandle handle) {
- switch (handle.getPosition()) {
- case TOP_LEFT:
- case LEFT_MIDDLE:
- case BOTTOM_LEFT:
- return SegmentType.LEFT;
- case BOTTOM_MIDDLE:
- case TOP_MIDDLE:
- return null;
- case TOP_RIGHT:
- case RIGHT_MIDDLE:
- case BOTTOM_RIGHT:
- return SegmentType.RIGHT;
- default: assert false : handle.getPosition();
- }
- return null;
- }
-
-
- @Override
- public List<Overlay> createOverlays() {
- mOverlay = new ResizeOverlay();
- return Collections.<Overlay> singletonList(mOverlay);
- }
-
- /**
- * An {@link Overlay} to paint the resize feedback. This just delegates to the
- * layout rule for the parent which is handling the resizing.
- */
- private class ResizeOverlay extends Overlay {
- @Override
- public void paint(GC gc) {
- if (mChildNode != null && mFeedback != null) {
- RulesEngine rulesEngine = mCanvas.getRulesEngine();
- rulesEngine.callDropFeedbackPaint(mCanvas.getGcWrapper(), mChildNode, mFeedback);
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-13 17:53:07 +0000