drawingattributes.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

        clone.fillPaint = fillPaint;
        clone.mattingPaint = mattingPaint;
        clone.fillPattern = fillPattern;
        clone.setStroke(stroke);
        clone.baseScale = baseScale;
        clone.matted = matted;
    }

    public boolean equals(DrawingAttributes da) {
        return (da.linePaint == linePaint &&
        //              da.textPaint == textPaint &&
                da.selectPaint == selectPaint && da.fillPaint == fillPaint
                && da.mattingPaint == mattingPaint
                && da.fillPattern == fillPattern && da.stroke == stroke
                && da.baseScale == baseScale && da.matted == matted);
    }

    /**
     * If you want to get a DEFAULT DrawingAttributes object that you
     * may modify, get your own copy.
     */
    public static DrawingAttributes getDefaultClone() {
        return (DrawingAttributes) DEFAULT.clone();
    }

    /**
     * Call setProperties without a prefix for the properties.
     * 
     * @param props the Properties to look in.
     * @deprecated use setProperties(props).
     */
    public void init(Properties props) {
        setProperties(null, props);
    }

    /**
     * Look at the Properties, and fill in the drawing attributes
     * based in it's contents. If a property is not in the properties,
     * it's set to its default setting.
     * 
     * @param prefix the prefix marker to use for a property, like
     *        prefix.propertyName. The period is added in this
     *        function.
     * @param props the Properties to look in.
     * @deprecated use setProperties(prefix, props).
     */
    public void init(String prefix, Properties props) {
        setProperties(prefix, props);
    }

    /**
     * Set the Stroke to use for the edge of a graphic.
     */
    public void setStroke(Stroke stroke) {
        Stroke oldStroke = this.stroke;
        this.stroke = stroke;

        // We don't want to call getBasicStrokeEditor, that creates
        // the editor if it doesn't exist, which may be problematic
        // for cases where there is no Graphics Display.
        if (stroke instanceof BasicStroke && bse != null) {
            bse.setBasicStroke((BasicStroke) stroke);
            // This requires that the JRE has a display, which may be
            // unnecessary in some situations where the editor is
            // never used.
            //            BasicStrokeEditorMenu tmpbse = getBasicStrokeEditor();
            //            if (tmpbse != null) {
            //                tmpbse.setBasicStroke((BasicStroke) stroke);
            //            }
        }

        if (propertyChangeSupport != null) {
            propertyChangeSupport.firePropertyChange("stroke",
                    oldStroke,
                    stroke);
        }
    }

    /**
     * Get the Stroke used for the lines of a graphic.
     */
    public Stroke getStroke() {
        return stroke;
    }

    /**
     * Get the Stroke object, scaled for comparison to the base scale.
     * If the base scale equals NONE, it's the same as getStroke().
     * 
     * @param scale scale to compare to the base scale.
     */
    public Stroke getStrokeForScale(float scale) {
        if (baseScale != NONE && stroke instanceof BasicStroke) {
            BasicStroke bs = (BasicStroke) stroke;
            float lineWidth = bs.getLineWidth();
            float[] dash = bs.getDashArray();
            float scaleFactor = scale / baseScale;
            int endCaps = bs.getEndCap();
            int lineJoins = bs.getLineJoin();
            float miterLimit = bs.getMiterLimit();

            lineWidth *= scaleFactor;
            for (int i = 0; i < dash.length; i++) {
                dash[i] *= scaleFactor;
            }

            return new BasicStroke(lineWidth, endCaps, lineJoins, miterLimit, dash, bs.getDashPhase());
        }
        return stroke;
    }

    /**
     * Get the Paint for these attributes, and scale it for the scale
     * compaired to the base scale set if the fill Paint is a
     * TexturePattern. If the base scale equals NONE, or if the Paint
     * is not a TexturePaint, it's the same as getFillPaint().
     * 
     * @param scale scale to compare to the base scale.
     * @return a Paint object to use for the fill, scaled if
     *         necessary.
     */
    public Paint getFillPaintForScale(float scale) {
        if (fillPattern != null) {
            if (baseScale != NONE) {
                BufferedImage bi = fillPattern.getImage();
                float scaleFactor = scale / baseScale;
                Image image = bi.getScaledInstance((int) (bi.getWidth() * scaleFactor),
                        (int) (bi.getHeight() * scaleFactor),
                        Image.SCALE_SMOOTH);
                try {
                    bi = BufferedImageHelper.getBufferedImage(image,
                            0,
                            0,
                            -1,
                            -1);

                    return new TexturePaint(bi, new Rectangle(0, 0, bi.getWidth(), bi.getHeight()));
                } catch (InterruptedException ie) {
                    Debug.error("DrawingAttributes: Interrupted Exception scaling texture paint");
                }
            }
            return fillPattern;
        } else {
            return fillPaint;
        }
    }

    /**
     * Set the edge paint for the graphics created for the coverage
     * type.
     * 
     * @param lPaint the paint.
     */
    public void setLinePaint(Paint lPaint) {
        if (lPaint == linePaint)
            return;

        Paint oldPaint = linePaint;
        linePaint = lPaint;

        if (lineColorButton != null) {
            lineColorButton.setIcon(getIconForPaint(linePaint, false));
        }

        if (mattedCheckBox != null) {
            mattedCheckBox.setIcon(getMattedIcon());
        }

        propertyChangeSupport.firePropertyChange("linePaint",
                oldPaint,
                linePaint);
    }

    /**
     * Get the line paint for the graphics created for the coverage
     * type.
     * 
     * @return the line paint to use for the edges.
     */
    public Paint getLinePaint() {
        return linePaint;
    }

    /**
     * Set the selected edge paint for the graphics created for the
     * coverage type.
     * 
     * @param sPaint the paint.
     */
    public void setSelectPaint(Paint sPaint) {
        if (sPaint == selectPaint)
            return;

        Paint oldPaint = selectPaint;
        selectPaint = sPaint;

        if (selectColorButton != null) {
            selectColorButton.setIcon(getIconForPaint(selectPaint, false));
        }

        propertyChangeSupport.firePropertyChange("selectPaint",
                oldPaint,
                selectPaint);
    }

    /**
     * Get the line paint for the graphics created for the coverage
     * type.
     * 
     * @return the select line paint to use for the edges.
     */
    public Paint getSelectPaint() {
        return selectPaint;
    }

    /**
     * Set the fill paint for the graphics created for the coverage
     * type.
     * 
     * @param fPaint the paint.
     */
    public void setFillPaint(Paint fPaint) {
        if (fPaint == fillPaint)
            return;

        Paint oldPaint = fillPaint;
        fillPaint = fPaint;

        if (fillColorButton != null) {
            fillColorButton.setIcon(getIconForPaint(fillPaint, true));
        }

        propertyChangeSupport.firePropertyChange("fillPaint",
                oldPaint,
                fillPaint);
    }

    /**
     * Get the fill paint for the graphics created for the coverage
     * type. This used to return the fillPattern if it was defined.
     * Now, it always returns the fillPaint.
     * 
     * @return the fill paint to use for the areas.
     */
    public Paint getFillPaint() {
        return fillPaint;
    }

    /**
     * Set the matting paint for the graphics created for the coverage
     * type. The matting paint is the paint used for the matting line
     * painted around the edge, two pixels wider than the edge line
     * width. Black by default, only painted when the matting variable
     * is set to true.
     * 
     * @param mPaint the paint.
     */
    public void setMattingPaint(Paint mPaint) {
        if (mPaint == mattingPaint)
            return;

        Paint oldPaint = mattingPaint;
        mattingPaint = mPaint;

        if (mattingColorButton != null) {
            mattingColorButton.setIcon(getMattingIconForPaint());
        }

        if (mattedCheckBox != null) {
            mattedCheckBox.setIcon(getMattedIcon());
        }

        propertyChangeSupport.firePropertyChange("mattingPaint",
                oldPaint,
                mattingPaint);
    }

    /**
     * Get the matting paint for the OMGraphics
     * 
     * @return the matting paint to use for the areas.
     */
    public Paint getMattingPaint() {
        return mattingPaint;
    }

    /**
     * Set the fill pattern TexturePaint to be used as the fill color.
     * If not null, the fillPattern will be returned from
     * getFillPaint() instead of fillPaint.
     * 
     * @param fPattern the TexturePaint to set.
     */
    public void setFillPattern(TexturePaint fPattern) {
        Paint oldPattern = fPattern;
        fillPattern = fPattern;

        if (fillColorButton != null) {
            // GUI doesn't handle fill patterns yet.
        }

        propertyChangeSupport.firePropertyChange("fillPattern",
                oldPattern,
                fillPattern);
    }

    /**
     * Get the TexturePaint set as the fill pattern.
     * 
     * @return TexturePaint.
     */
    public TexturePaint getFillPattern() {
        return fillPattern;
    }

    /**
     * Set the base scale to use for the texture paint and stroke. If
     * this is set to a negative number, then no scaling of the paint
     * or stroke will be performed.
     * 
     * @param bScale the base scale to use - 1:bScale.
     */
    public void setBaseScale(float bScale) {
        if (bScale > 0) {
            baseScale = bScale;
        } else {
            baseScale = NONE;
        }
    }

    /**
     * Get the base scale that the texture paint and dashes are set
     * for. If the texture paint and stroke are asked for with a
     * scale, those values will be adjusted accordingly.
     * 
     * @return base scale for paint and stroke.
     */
    public float getBaseScale() {
        return baseScale;
    }

    /**
     * Return whether the OMGraphic has matting around the edge.
     */
    public boolean isMatted() {
        return matted;
    }

    /**
     * Set whether the OMGraphic should have matting around the edge.
     */
    public void setMatted(boolean set) {
        boolean oldMatted = matted;
        matted = set;

        if (mattedCheckBox != null) {
            mattedCheckBox.setSelected(matted);
        }

        propertyChangeSupport.firePropertyChange("matted", oldMatted, matted);
    }