platform/vcs-log/graph/src/com/intellij/vcs/log/newgraph/render/SimpleGraphCellPainter.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2014 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.vcs.log.newgraph.render;

 import com.intellij.ui.JBColor;
 import com.intellij.vcs.log.graph.render.PrintParameters;
 import com.intellij.vcs.log.newgraph.gpaph.Edge;
 import com.intellij.vcs.log.newgraph.gpaph.GraphElement;
 import com.intellij.vcs.log.newgraph.gpaph.Node;
 import com.intellij.vcs.log.newgraph.gpaph.ThickHoverController;
 import com.intellij.vcs.log.newgraph.render.cell.GraphCell;
 import com.intellij.vcs.log.newgraph.render.cell.ShortEdge;
 import com.intellij.vcs.log.newgraph.render.cell.SpecialRowElement;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;

 import java.awt.*;
 import java.awt.geom.Ellipse2D;

 /**
  * @author erokhins
  */
 public class SimpleGraphCellPainter implements GraphCellPainter {

   private static final Color MARK_COLOR = JBColor.BLACK;

   private final Stroke usual = new BasicStroke(PrintParameters.THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL);
   private final Stroke hide = new BasicStroke(PrintParameters.THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL, 0, new float[]{7}, 0);
   private final Stroke selectUsual = new BasicStroke(PrintParameters.SELECT_THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL);
   private final Stroke selectHide = new BasicStroke(PrintParameters.SELECT_THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL, 0, new float[]{7}, 0);

   private Graphics2D g2;

   @NotNull
   private final ThickHoverController myThickHoverController;

   @NotNull
   private final ElementColorManager myColorManager;

   public SimpleGraphCellPainter(@NotNull ThickHoverController thickHoverController, @NotNull ElementColorManager colorManager) {
     myThickHoverController = thickHoverController;
     myColorManager = colorManager;
   }

   private void paintUpLine(int from, int to, Color color) {
     int x1 = PrintParameters.WIDTH_NODE * from + PrintParameters.WIDTH_NODE / 2;
     int y1 = PrintParameters.HEIGHT_CELL / 2;
     int x2 = PrintParameters.WIDTH_NODE * to + PrintParameters.WIDTH_NODE / 2;
     int y2 = -PrintParameters.HEIGHT_CELL / 2;
     g2.setColor(color);
     g2.drawLine(x2, y2, x1, y1);
   }

   private void paintDownLine(int from, int to, Color color) {
     int x1 = PrintParameters.WIDTH_NODE * from + PrintParameters.WIDTH_NODE / 2;
     int y1 = PrintParameters.HEIGHT_CELL / 2;
     int x2 = PrintParameters.WIDTH_NODE * to + PrintParameters.WIDTH_NODE / 2;
     int y2 = PrintParameters.HEIGHT_CELL + PrintParameters.HEIGHT_CELL / 2;
     g2.setColor(color);
     g2.drawLine(x1, y1, x2, y2);
   }

   private void paintAbove(int position, Color color) {
     int x1 = PrintParameters.WIDTH_NODE * position + 3;
     int y = 4;
     int x2 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE - 4;
     g2.setColor(color);
     g2.drawLine(x1, y, x2, y);
   }

   private void paintBelow(int position, Color color) {
     int x1 = PrintParameters.WIDTH_NODE * position + 3;
     int y = PrintParameters.HEIGHT_CELL - 4;
     int x2 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE - 4;
     g2.setColor(color);
     g2.drawLine(x1, y, x2, y);
   }


   private void paintCircle(int position, Color color, boolean select) {
     int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
     int y0 = PrintParameters.HEIGHT_CELL / 2;
     int r = PrintParameters.CIRCLE_RADIUS;
     if (select) {
       r = PrintParameters.SELECT_CIRCLE_RADIUS;
     }
     Ellipse2D.Double circle = new Ellipse2D.Double(x0 - r + 0.5, y0 - r + 0.5, 2 * r, 2 * r);
     g2.setColor(color);
     g2.fill(circle);
   }

   private void paintHide(int position, Color color) {
     int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
     int y0 = PrintParameters.HEIGHT_CELL / 2;
     int r = PrintParameters.CIRCLE_RADIUS;
     g2.setColor(color);
     g2.drawLine(x0, y0, x0, y0 + r);
     g2.drawLine(x0, y0 + r, x0 + r, y0);
     g2.drawLine(x0, y0 + r, x0 - r, y0);
   }

   private void paintShow(int position, Color color) {
     int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
     int y0 = PrintParameters.HEIGHT_CELL / 2;
     int r = PrintParameters.CIRCLE_RADIUS;
     g2.setColor(color);
     g2.drawLine(x0, y0, x0, y0 - r);
     g2.drawLine(x0, y0 - r, x0 + r, y0);
     g2.drawLine(x0, y0 - r, x0 - r, y0);
   }

   private void paintDownHarmonica(Color color) {
     int x0 = 0;
     int y0 = PrintParameters.HEIGHT_CELL - 1;
     g2.setColor(color);
     g2.drawLine(x0, y0, x0 + PrintParameters.WIDTH_NODE / 2 , y0);
   }

   private void setStroke(boolean usual, boolean select) {
     if (usual) {
       if (select) {
         g2.setStroke(selectUsual);
       }
       else {
         g2.setStroke(this.usual);
       }
     }
     else {
       if (select) {
         g2.setStroke(selectHide);
       }
       else {
         g2.setStroke(hide);
       }
     }
   }

   private interface LitePrinter {
     void print(Color color);
   }

   private void drawLogic(boolean selected, boolean marked, boolean isUsual, Color usualColor, LitePrinter printer) {
     if (marked) {
       setStroke(isUsual, true);
       printer.print(MARK_COLOR);
       setStroke(isUsual, false);
       printer.print(usualColor);
     } else {
       setStroke(isUsual, selected);
       printer.print(usualColor);
     }
   }


   private boolean isSelected(@NotNull GraphElement graphElement) {
     return myThickHoverController.isThick(graphElement);
   }

   private boolean isMarked(@NotNull GraphElement graphElement) {
     return myThickHoverController.isHover(graphElement);
   }

   private static boolean isUsual(@NotNull Edge edge) {
     return edge.getType() == Edge.Type.USUAL;
   }

   @NotNull
   private JBColor getColor(@NotNull GraphElement element) {
     return myColorManager.getColor(element);
   }

   private boolean isMarked(@NotNull SpecialRowElement specialRowElement) {
     return myThickHoverController.isHover(specialRowElement) || myThickHoverController.isHover(specialRowElement.getElement());
   }

   @Override
   public void draw(@NotNull Graphics2D g2, @NotNull GraphCell row) {
     this.g2 = g2;
     g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
     for (final ShortEdge shortEdge : row.getUpEdges()) {
       Edge edge = shortEdge.getEdge();
       drawLogic(isSelected(edge), isMarked(edge), isUsual(edge), getColor(edge), new LitePrinter() {
         @Override
         public void print(Color color) {
           paintUpLine(shortEdge.getDownPosition(), shortEdge.getUpPosition(), color);
         }
       });
     }
     for (final ShortEdge shortEdge : row.getDownEdges()) {
       Edge edge = shortEdge.getEdge();
       drawLogic(isSelected(edge), isMarked(edge), isUsual(edge), getColor(edge), new LitePrinter() {
         @Override
         public void print(Color color) {
           paintDownLine(shortEdge.getUpPosition(), shortEdge.getDownPosition(), color);
         }
       });

     }
     for (final SpecialRowElement rowElement : row.getSpecialRowElements()) {
       GraphElement element = rowElement.getElement();
       final Edge edge;
       switch (rowElement.getType()) {
         case NODE:
           assert element instanceof Node;
           Node node = (Node) element;
           if (isMarked(node)) {
             paintCircle(rowElement.getPosition(), MARK_COLOR, true);
             paintCircle(rowElement.getPosition(), getColor(node), false);
           } else {
             paintCircle(rowElement.getPosition(), getColor(node), isSelected(node));
           }
           break;
         case UP_ARROW:
           assert element instanceof Edge;
           edge = (Edge) element;
           drawLogic(isSelected(edge), isMarked(rowElement), isUsual(edge), getColor(edge), new LitePrinter() {
             @Override
             public void print(Color color) {
               paintShow(rowElement.getPosition(), color);
             }
           });
           break;
         case DOWN_ARROW:
           assert element instanceof Edge;
           edge = (Edge) element;
           drawLogic(isSelected(edge), isMarked(rowElement), isUsual(edge), getColor(edge), new LitePrinter() {
             @Override
             public void print(Color color) {
               paintHide(rowElement.getPosition(), color);
             }
           });
           break;
         case DOWN_HARMONICA:
           drawLogic(true, false, true, JBColor.BLACK, new LitePrinter() {
             @Override
             public void print(Color color) {
               //paintDownHarmonica(color);
             }
           });
           break;
         default:
           throw new IllegalStateException();
       }
     }

   }

   @Nullable
   @Override
   public GraphElement mouseOver(@NotNull GraphCell graphCell, int x, int y) {
     for (SpecialRowElement printElement : graphCell.getSpecialRowElements()) {
       if (printElement.getType() == SpecialRowElement.Type.NODE) {
         if (PositionUtil.overNode(printElement.getPosition(), x, y)) {
           return printElement.getElement();
         }
       }
     }
     for (ShortEdge edge : graphCell.getUpEdges()) {
       if (PositionUtil.overUpEdge(edge, x, y)) {
         return edge.getEdge();
       }
     }
     for (ShortEdge edge : graphCell.getDownEdges()) {
       if (PositionUtil.overDownEdge(edge, x, y)) {
         return edge.getEdge();
       }
     }

     return null;
   }

   @Nullable
   @Override
   public SpecialRowElement mouseOverArrow(@NotNull GraphCell graphCell, int x, int y) {
     for (SpecialRowElement rowElement : graphCell.getSpecialRowElements()) {
       if (rowElement.getType() == SpecialRowElement.Type.UP_ARROW || rowElement.getType() == SpecialRowElement.Type.DOWN_ARROW) {
         if (PositionUtil.overNode(rowElement.getPosition(), x, y)) {
           return rowElement;
         }
       }
     }
     return null;
   }

 }
	/*
	* Copyright 2000-2014 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.vcs.log.newgraph.render;

	import com.intellij.ui.JBColor;
	import com.intellij.vcs.log.graph.render.PrintParameters;
	import com.intellij.vcs.log.newgraph.gpaph.Edge;
	import com.intellij.vcs.log.newgraph.gpaph.GraphElement;
	import com.intellij.vcs.log.newgraph.gpaph.Node;
	import com.intellij.vcs.log.newgraph.gpaph.ThickHoverController;
	import com.intellij.vcs.log.newgraph.render.cell.GraphCell;
	import com.intellij.vcs.log.newgraph.render.cell.ShortEdge;
	import com.intellij.vcs.log.newgraph.render.cell.SpecialRowElement;
	import org.jetbrains.annotations.NotNull;
	import org.jetbrains.annotations.Nullable;

	import java.awt.*;
	import java.awt.geom.Ellipse2D;

	/**
	* @author erokhins
	*/
	public class SimpleGraphCellPainter implements GraphCellPainter {

	private static final Color MARK_COLOR = JBColor.BLACK;

	private final Stroke usual = new BasicStroke(PrintParameters.THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL);
	private final Stroke hide = new BasicStroke(PrintParameters.THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL, 0, new float[]{7}, 0);
	private final Stroke selectUsual = new BasicStroke(PrintParameters.SELECT_THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL);
	private final Stroke selectHide = new BasicStroke(PrintParameters.SELECT_THICK_LINE, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL, 0, new float[]{7}, 0);

	private Graphics2D g2;

	@NotNull
	private final ThickHoverController myThickHoverController;

	@NotNull
	private final ElementColorManager myColorManager;

	public SimpleGraphCellPainter(@NotNull ThickHoverController thickHoverController, @NotNull ElementColorManager colorManager) {
	myThickHoverController = thickHoverController;
	myColorManager = colorManager;
	}

	private void paintUpLine(int from, int to, Color color) {
	int x1 = PrintParameters.WIDTH_NODE * from + PrintParameters.WIDTH_NODE / 2;
	int y1 = PrintParameters.HEIGHT_CELL / 2;
	int x2 = PrintParameters.WIDTH_NODE * to + PrintParameters.WIDTH_NODE / 2;
	int y2 = -PrintParameters.HEIGHT_CELL / 2;
	g2.setColor(color);
	g2.drawLine(x2, y2, x1, y1);
	}

	private void paintDownLine(int from, int to, Color color) {
	int x1 = PrintParameters.WIDTH_NODE * from + PrintParameters.WIDTH_NODE / 2;
	int y1 = PrintParameters.HEIGHT_CELL / 2;
	int x2 = PrintParameters.WIDTH_NODE * to + PrintParameters.WIDTH_NODE / 2;
	int y2 = PrintParameters.HEIGHT_CELL + PrintParameters.HEIGHT_CELL / 2;
	g2.setColor(color);
	g2.drawLine(x1, y1, x2, y2);
	}

	private void paintAbove(int position, Color color) {
	int x1 = PrintParameters.WIDTH_NODE * position + 3;
	int y = 4;
	int x2 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE - 4;
	g2.setColor(color);
	g2.drawLine(x1, y, x2, y);
	}

	private void paintBelow(int position, Color color) {
	int x1 = PrintParameters.WIDTH_NODE * position + 3;
	int y = PrintParameters.HEIGHT_CELL - 4;
	int x2 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE - 4;
	g2.setColor(color);
	g2.drawLine(x1, y, x2, y);
	}


	private void paintCircle(int position, Color color, boolean select) {
	int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
	int y0 = PrintParameters.HEIGHT_CELL / 2;
	int r = PrintParameters.CIRCLE_RADIUS;
	if (select) {
	r = PrintParameters.SELECT_CIRCLE_RADIUS;
	}
	Ellipse2D.Double circle = new Ellipse2D.Double(x0 - r + 0.5, y0 - r + 0.5, 2 * r, 2 * r);
	g2.setColor(color);
	g2.fill(circle);
	}

	private void paintHide(int position, Color color) {
	int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
	int y0 = PrintParameters.HEIGHT_CELL / 2;
	int r = PrintParameters.CIRCLE_RADIUS;
	g2.setColor(color);
	g2.drawLine(x0, y0, x0, y0 + r);
	g2.drawLine(x0, y0 + r, x0 + r, y0);
	g2.drawLine(x0, y0 + r, x0 - r, y0);
	}

	private void paintShow(int position, Color color) {
	int x0 = PrintParameters.WIDTH_NODE * position + PrintParameters.WIDTH_NODE / 2;
	int y0 = PrintParameters.HEIGHT_CELL / 2;
	int r = PrintParameters.CIRCLE_RADIUS;
	g2.setColor(color);
	g2.drawLine(x0, y0, x0, y0 - r);
	g2.drawLine(x0, y0 - r, x0 + r, y0);
	g2.drawLine(x0, y0 - r, x0 - r, y0);
	}

	private void paintDownHarmonica(Color color) {
	int x0 = 0;
	int y0 = PrintParameters.HEIGHT_CELL - 1;
	g2.setColor(color);
	g2.drawLine(x0, y0, x0 + PrintParameters.WIDTH_NODE / 2 , y0);
	}

	private void setStroke(boolean usual, boolean select) {
	if (usual) {
	if (select) {
	g2.setStroke(selectUsual);
	}
	else {
	g2.setStroke(this.usual);
	}
	}
	else {
	if (select) {
	g2.setStroke(selectHide);
	}
	else {
	g2.setStroke(hide);
	}
	}
	}

	private interface LitePrinter {
	void print(Color color);
	}

	private void drawLogic(boolean selected, boolean marked, boolean isUsual, Color usualColor, LitePrinter printer) {
	if (marked) {
	setStroke(isUsual, true);
	printer.print(MARK_COLOR);
	setStroke(isUsual, false);
	printer.print(usualColor);
	} else {
	setStroke(isUsual, selected);
	printer.print(usualColor);
	}
	}


	private boolean isSelected(@NotNull GraphElement graphElement) {
	return myThickHoverController.isThick(graphElement);
	}

	private boolean isMarked(@NotNull GraphElement graphElement) {
	return myThickHoverController.isHover(graphElement);
	}

	private static boolean isUsual(@NotNull Edge edge) {
	return edge.getType() == Edge.Type.USUAL;
	}

	@NotNull
	private JBColor getColor(@NotNull GraphElement element) {
	return myColorManager.getColor(element);
	}

	private boolean isMarked(@NotNull SpecialRowElement specialRowElement) {
	return myThickHoverController.isHover(specialRowElement) \|\| myThickHoverController.isHover(specialRowElement.getElement());
	}

	@Override
	public void draw(@NotNull Graphics2D g2, @NotNull GraphCell row) {
	this.g2 = g2;
	g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
	for (final ShortEdge shortEdge : row.getUpEdges()) {
	Edge edge = shortEdge.getEdge();
	drawLogic(isSelected(edge), isMarked(edge), isUsual(edge), getColor(edge), new LitePrinter() {
	@Override
	public void print(Color color) {
	paintUpLine(shortEdge.getDownPosition(), shortEdge.getUpPosition(), color);
	}
	});
	}
	for (final ShortEdge shortEdge : row.getDownEdges()) {
	Edge edge = shortEdge.getEdge();
	drawLogic(isSelected(edge), isMarked(edge), isUsual(edge), getColor(edge), new LitePrinter() {
	@Override
	public void print(Color color) {
	paintDownLine(shortEdge.getUpPosition(), shortEdge.getDownPosition(), color);
	}
	});

	}
	for (final SpecialRowElement rowElement : row.getSpecialRowElements()) {
	GraphElement element = rowElement.getElement();
	final Edge edge;
	switch (rowElement.getType()) {
	case NODE:
	assert element instanceof Node;
	Node node = (Node) element;
	if (isMarked(node)) {
	paintCircle(rowElement.getPosition(), MARK_COLOR, true);
	paintCircle(rowElement.getPosition(), getColor(node), false);
	} else {
	paintCircle(rowElement.getPosition(), getColor(node), isSelected(node));
	}
	break;
	case UP_ARROW:
	assert element instanceof Edge;
	edge = (Edge) element;
	drawLogic(isSelected(edge), isMarked(rowElement), isUsual(edge), getColor(edge), new LitePrinter() {
	@Override
	public void print(Color color) {
	paintShow(rowElement.getPosition(), color);
	}
	});
	break;
	case DOWN_ARROW:
	assert element instanceof Edge;
	edge = (Edge) element;
	drawLogic(isSelected(edge), isMarked(rowElement), isUsual(edge), getColor(edge), new LitePrinter() {
	@Override
	public void print(Color color) {
	paintHide(rowElement.getPosition(), color);
	}
	});
	break;
	case DOWN_HARMONICA:
	drawLogic(true, false, true, JBColor.BLACK, new LitePrinter() {
	@Override
	public void print(Color color) {
	//paintDownHarmonica(color);
	}
	});
	break;
	default:
	throw new IllegalStateException();
	}
	}

	}

	@Nullable
	@Override
	public GraphElement mouseOver(@NotNull GraphCell graphCell, int x, int y) {
	for (SpecialRowElement printElement : graphCell.getSpecialRowElements()) {
	if (printElement.getType() == SpecialRowElement.Type.NODE) {
	if (PositionUtil.overNode(printElement.getPosition(), x, y)) {
	return printElement.getElement();
	}
	}
	}
	for (ShortEdge edge : graphCell.getUpEdges()) {
	if (PositionUtil.overUpEdge(edge, x, y)) {
	return edge.getEdge();
	}
	}
	for (ShortEdge edge : graphCell.getDownEdges()) {
	if (PositionUtil.overDownEdge(edge, x, y)) {
	return edge.getEdge();
	}
	}

	return null;
	}

	@Nullable
	@Override
	public SpecialRowElement mouseOverArrow(@NotNull GraphCell graphCell, int x, int y) {
	for (SpecialRowElement rowElement : graphCell.getSpecialRowElements()) {
	if (rowElement.getType() == SpecialRowElement.Type.UP_ARROW \|\| rowElement.getType() == SpecialRowElement.Type.DOWN_ARROW) {
	if (PositionUtil.overNode(rowElement.getPosition(), x, y)) {
	return rowElement;
	}
	}
	}
	return null;
	}

	}