1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* Copyright 2000-2012 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.intellij.openapi.diff.impl.splitter;
import com.intellij.openapi.diff.impl.DiffUtil;
import com.intellij.openapi.diff.impl.EditingSides;
import com.intellij.openapi.diff.impl.highlighting.FragmentSide;
import com.intellij.openapi.diff.impl.util.TextDiffType;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.LogicalPosition;
import com.intellij.openapi.util.Comparing;
import com.intellij.util.ui.GraphicsUtil;
import java.awt.*;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.Path2D;
import java.util.ArrayList;
/**
* A polygon, which is drawn between editors in merge or diff dialogs, and which indicates the change flow from one editor to another.
*/
public class DividerPolygon {
private final Color myColor;
private final int myStart1;
private final int myStart2;
private final int myEnd1;
private final int myEnd2;
private final boolean myApplied;
public static final double CTRL_PROXIMITY_X = 0.3;
public DividerPolygon(int start1, int start2, int end1, int end2, Color color, boolean applied) {
myApplied = applied;
myStart1 = advance(start1);
myStart2 = advance(start2);
myEnd1 = advance(end1);
myEnd2 = advance(end2);
myColor = color;
}
private int advance(int y) {
return y == 0 ? y : y + 1;
}
private void paint(Graphics2D g, int width) {
GraphicsUtil.setupAntialiasing(g);
if (!myApplied) {
Shape upperCurve = makeCurve(width, myStart1, myStart2, true);
Shape lowerCurve = makeCurve(width, myEnd1, myEnd2, false);
Path2D path = new Path2D.Double();
path.append(upperCurve, true);
path.append(lowerCurve, true);
g.setColor(myColor);
g.fill(path);
g.setColor(DiffUtil.getFramingColor(myColor));
g.draw(upperCurve);
g.draw(lowerCurve);
}
else {
g.setColor(myColor);
g.draw(makeCurve(width, myStart1 + 1, myStart2 + 1, true));
g.draw(makeCurve(width, myStart1 + 2, myStart2 + 2, true));
g.draw(makeCurve(width, myEnd1 + 1, myEnd2 + 1, false));
g.draw(makeCurve(width, myEnd1 + 2, myEnd2 + 2, false));
}
}
private static Shape makeCurve(int width, int y1, int y2, boolean forward) {
if (forward) {
return new CubicCurve2D.Double(0, y1,
width * CTRL_PROXIMITY_X, y1,
width * (1.0 - CTRL_PROXIMITY_X), y2,
width, y2);
}
else {
return new CubicCurve2D.Double(width, y2,
width * (1.0 - CTRL_PROXIMITY_X), y2,
width * CTRL_PROXIMITY_X, y1,
0, y1);
}
}
public int hashCode() {
return myStart1 ^ myStart2 ^ myEnd1 ^ myEnd2;
}
public boolean equals(Object obj) {
if (!(obj instanceof DividerPolygon)) return false;
DividerPolygon other = (DividerPolygon)obj;
return myStart1 == other.myStart1 &&
myStart2 == other.myStart2 &&
myEnd1 == other.myEnd1 &&
myEnd2 == other.myEnd2 && Comparing.equal(myColor, other.myColor);
}
public String toString() {
return "<" + myStart1 + ", " + myEnd1 + " : " + myStart2 + ", " + myEnd2 + "> " + myColor;
}
public Color getColor() {
return myColor;
}
public int getTopLeftY() {
return myStart1;
}
public int getTopRightY() {
return myStart2;
}
public int getBottomLeftY() {
return myEnd1;
}
public int getBottomRightY() {
return myEnd2;
}
public boolean isApplied() {
return myApplied;
}
public static void paintPolygons(ArrayList<DividerPolygon> polygons, Graphics2D g, int width) {
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
//Composite composite = g.getComposite();
//g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 0.4f));
for (DividerPolygon polygon : polygons) {
polygon.paint(g, width);
}
//g.setComposite(composite);
}
public static ArrayList<DividerPolygon> createVisiblePolygons(EditingSides sides, FragmentSide left, int diffDividerPolygonsOffset) {
Editor editor1 = sides.getEditor(left);
Editor editor2 = sides.getEditor(left.otherSide());
LineBlocks lineBlocks = sides.getLineBlocks();
Trapezium visibleArea = new Trapezium(getVisibleInterval(editor1),
getVisibleInterval(editor2));
Interval indices = lineBlocks.getVisibleIndices(visibleArea);
Transformation[] transformations = new Transformation[]{getTransformation(editor1),
getTransformation(editor2)};
ArrayList<DividerPolygon> polygons = new ArrayList<DividerPolygon>();
for (int i = indices.getStart(); i < indices.getEnd(); i++) {
Trapezium trapezium = lineBlocks.getTrapezium(i);
final TextDiffType type = lineBlocks.getType(i);
Color color = type.getPolygonColor(editor1);
polygons.add(createPolygon(transformations, trapezium, color, left, diffDividerPolygonsOffset, type.isApplied()));
}
return polygons;
}
private static Transformation getTransformation(Editor editor) {
// return new LinearTransformation(editor.getScrollingModel().getVerticalScrollOffset(), editor.getLineHeight());
return new FoldingTransformation(editor);
}
private static DividerPolygon createPolygon(Transformation[] transformations, Trapezium trapezium, Color color, FragmentSide left,
int diffDividerPolygonsOffset, boolean applied) {
Interval base1 = trapezium.getBase(left);
Interval base2 = trapezium.getBase(left.otherSide());
Transformation leftTransform = transformations[left.getIndex()];
Transformation rightTransform = transformations[left.otherSide().getIndex()];
int start1 = leftTransform.transform(base1.getStart());
int end1 = leftTransform.transform(base1.getEnd());
int start2 = rightTransform.transform(base2.getStart());
int end2 = rightTransform.transform(base2.getEnd());
return new DividerPolygon(start1 - diffDividerPolygonsOffset, start2 - diffDividerPolygonsOffset,
end1 - diffDividerPolygonsOffset, end2 - diffDividerPolygonsOffset,
color, applied);
}
static Interval getVisibleInterval(Editor editor) {
int offset = editor.getScrollingModel().getVerticalScrollOffset();
LogicalPosition logicalPosition = editor.xyToLogicalPosition(new Point(0, offset));
int line = logicalPosition.line;
return new Interval(line, editor.getComponent().getHeight() / editor.getLineHeight() + 1);
}
}
|
