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mxLabelShape.java
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146 lines (127 loc) · 3.79 KB
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package com.mxgraph.shape;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Rectangle;
import java.awt.geom.GeneralPath;
import java.util.Map;
import com.mxgraph.canvas.mxGraphics2DCanvas;
import com.mxgraph.util.mxConstants;
import com.mxgraph.util.mxRectangle;
import com.mxgraph.util.mxUtils;
import com.mxgraph.view.mxCellState;
public class mxLabelShape extends mxImageShape
{
/**
*
*/
public void paintShape(mxGraphics2DCanvas canvas, mxCellState state)
{
super.paintShape(canvas, state);
if (mxUtils.isTrue(state.getStyle(), mxConstants.STYLE_GLASS, false))
{
drawGlassEffect(canvas, state);
}
}
/**
* Draws the glass effect
*/
public static void drawGlassEffect(mxGraphics2DCanvas canvas,
mxCellState state)
{
double size = 0.4;
canvas.getGraphics().setPaint(
new GradientPaint((float) state.getX(), (float) state.getY(),
new Color(1, 1, 1, 0.9f), (float) (state.getX()),
(float) (state.getY() + state.getHeight() * size),
new Color(1, 1, 1, 0.3f)));
float sw = (float) (mxUtils.getFloat(state.getStyle(),
mxConstants.STYLE_STROKEWIDTH, 1) * canvas.getScale() / 2);
GeneralPath path = new GeneralPath();
path.moveTo((float) state.getX() - sw, (float) state.getY() - sw);
path.lineTo((float) state.getX() - sw,
(float) (state.getY() + state.getHeight() * size));
path.quadTo((float) (state.getX() + state.getWidth() * 0.5),
(float) (state.getY() + state.getHeight() * 0.7),
(float) (state.getX() + state.getWidth() + sw),
(float) (state.getY() + state.getHeight() * size));
path.lineTo((float) (state.getX() + state.getWidth() + sw),
(float) state.getY() - sw);
path.closePath();
canvas.getGraphics().fill(path);
}
/**
*
*/
public Rectangle getImageBounds(mxGraphics2DCanvas canvas, mxCellState state)
{
Map<String, Object> style = state.getStyle();
double scale = canvas.getScale();
String imgAlign = mxUtils.getString(style,
mxConstants.STYLE_IMAGE_ALIGN, mxConstants.ALIGN_LEFT);
String imgValign = mxUtils.getString(style,
mxConstants.STYLE_IMAGE_VERTICAL_ALIGN,
mxConstants.ALIGN_MIDDLE);
int imgWidth = (int) (mxUtils.getInt(style,
mxConstants.STYLE_IMAGE_WIDTH, mxConstants.DEFAULT_IMAGESIZE) * scale);
int imgHeight = (int) (mxUtils.getInt(style,
mxConstants.STYLE_IMAGE_HEIGHT, mxConstants.DEFAULT_IMAGESIZE) * scale);
int spacing = (int) (mxUtils
.getInt(style, mxConstants.STYLE_SPACING, 2) * scale);
mxRectangle imageBounds = new mxRectangle(state);
if (imgAlign.equals(mxConstants.ALIGN_CENTER))
{
imageBounds.setX(imageBounds.getX()
+ (imageBounds.getWidth() - imgWidth) / 2);
}
else if (imgAlign.equals(mxConstants.ALIGN_RIGHT))
{
imageBounds.setX(imageBounds.getX() + imageBounds.getWidth()
- imgWidth - spacing - 2);
}
else
// LEFT
{
imageBounds.setX(imageBounds.getX() + spacing + 4);
}
if (imgValign.equals(mxConstants.ALIGN_TOP))
{
imageBounds.setY(imageBounds.getY() + spacing);
}
else if (imgValign.equals(mxConstants.ALIGN_BOTTOM))
{
imageBounds.setY(imageBounds.getY() + imageBounds.getHeight()
- imgHeight - spacing);
}
else
// MIDDLE
{
imageBounds.setY(imageBounds.getY()
+ (imageBounds.getHeight() - imgHeight) / 2);
}
imageBounds.setWidth(imgWidth);
imageBounds.setHeight(imgHeight);
return imageBounds.getRectangle();
}
/**
*
*/
public Color getFillColor(mxGraphics2DCanvas canvas, mxCellState state)
{
return mxUtils.getColor(state.getStyle(), mxConstants.STYLE_FILLCOLOR);
}
/**
*
*/
public Color getStrokeColor(mxGraphics2DCanvas canvas, mxCellState state)
{
return mxUtils
.getColor(state.getStyle(), mxConstants.STYLE_STROKECOLOR);
}
/**
*
*/
public boolean hasGradient(mxGraphics2DCanvas canvas, mxCellState state)
{
return true;
}
}