diff options
Diffstat (limited to 'libjava/classpath/javax/swing/plaf/metal/MetalUtils.java')
| -rw-r--r-- | libjava/classpath/javax/swing/plaf/metal/MetalUtils.java | 164 |
1 files changed, 140 insertions, 24 deletions
diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalUtils.java b/libjava/classpath/javax/swing/plaf/metal/MetalUtils.java index b9d5ea76434..03617aa4099 100644 --- a/libjava/classpath/javax/swing/plaf/metal/MetalUtils.java +++ b/libjava/classpath/javax/swing/plaf/metal/MetalUtils.java @@ -91,7 +91,7 @@ class MetalUtils Color light, Color dark) { if (g instanceof Graphics2D - && SystemProperties.getProperty("gnu.javax.swing.noGraphics2D") != null) + && SystemProperties.getProperty("gnu.javax.swing.noGraphics2D") == null) fillMetalPattern2D((Graphics2D) g, x, y, w, h, light, dark); else { @@ -161,14 +161,35 @@ class MetalUtils /** * Paints the typical Metal gradient. See {@link #paintGradient(Graphics, - * int, int, int, int, double, double, Color, Color, Color, int)} + * int, int, int, int, float, float, Color, Color, Color, int, int[][])} + * for more details. + * + * This variant paints a gradient without a mask. + * + * @param g the graphics context to use + * @param x the X coordinate of the upper left corner of the rectangle + * @param y the Y coordinate of the upper left corner of the rectangle + * @param w the width of the rectangle + * @param h the height of the rectangle + * @param dir the direction of the gradient, either + * @param uiProp the key of the UIManager property that has the parameters + */ + static void paintGradient(Graphics g, int x, int y, int w, int h, + int dir, String uiProp) + { + paintGradient(g, x, y, w, h, dir, uiProp, null); + } + + /** + * Paints the typical Metal gradient. See {@link #paintGradient(Graphics, + * int, int, int, int, float, float, Color, Color, Color, int, int[][])} * for more details. * * The parameters are fetched from the UIManager using the key * <code>uiProp</code>. The value is expected to be a {@link List} that * contains 4 values: two {@link Double}s and 3 {@link Color} object that * together make up the parameters passed to the painting method. - * + * * @param g the graphics context to use * @param x the X coordinate of the upper left corner of the rectangle * @param y the Y coordinate of the upper left corner of the rectangle @@ -176,17 +197,19 @@ class MetalUtils * @param h the height of the rectangle * @param dir the direction of the gradient, either * @param uiProp the key of the UIManager property that has the parameters + * @param mask the mask that should be used when painting the gradient as + * described above */ static void paintGradient(Graphics g, int x, int y, int w, int h, - int dir, String uiProp) + int dir, String uiProp, int[][] mask) { List params = (List) UIManager.get(uiProp); - double g1 = ((Double) params.get(0)).doubleValue(); - double g2 = ((Double) params.get(1)).doubleValue(); + float g1 = ((Float) params.get(0)).floatValue(); + float g2 = ((Float) params.get(1)).floatValue(); Color c1 = (Color) params.get(2); Color c2 = (Color) params.get(3); Color c3 = (Color) params.get(4); - paintGradient(g, x, y, w, h, g1, g2, c1, c2, c3, dir); + paintGradient(g, x, y, w, h, g1, g2, c1, c2, c3, dir, mask); } /** @@ -209,6 +232,33 @@ class MetalUtils * <li>A gradient from color 2 to color 1 with the relative width specified * by <code>g1</code></li> * + * The <code>mask</code> parameter is an array if int arrays, where the first + * index specifies the row (in the gradient direction), and the second index + * is the starting and end offset of that line. This way you can specify a + * mask that should be laid over the gradient for paintint non-rectangular + * gradients. The following example should demonstrate this for painting + * a circular shaped gradient (note that the first and last line should not + * be drawn at all, they are only here to show the circular shape more + * clearly). Everything <em>inside</code> the surrounded area is filled by + * the gradient: + * + * <pre> + * 012345678 + * xxx + * 0 x x { {4, 7}, + * 1 x x {3, 8}, + * 2 x x {3, 8}, + * 3 x x {3, 8}, + * 4 x x {4, 7} } + * xxx + * </pre> + * + * The <code>mask</code> array is expected to have <code>w</code> or + * <code>h</code> array elements, depending on the direction. + * + * If the <code>mask</code> parameter is null, then the gradient is painted + * without a mask. + * * @param g the graphics context to use * @param x the X coordinate of the upper left corner of the rectangle * @param y the Y coordinate of the upper left corner of the rectangle @@ -221,19 +271,23 @@ class MetalUtils * @param c3 the color 3 * @param dir the direction of the gradient, either * {@link SwingConstants#HORIZONTAL} or {@link SwingConstants#VERTICAL} + * @param mask the mask that should be used when painting the gradient as + * described above */ - static void paintGradient(Graphics g, int x, int y, int w, int h, double g1, - double g2, Color c1, Color c2, Color c3, int dir) + static void paintGradient(Graphics g, int x, int y, int w, int h, float g1, + float g2, Color c1, Color c2, Color c3, int dir, + int[][] mask) { if (dir == SwingConstants.HORIZONTAL) - paintHorizontalGradient(g, x, y, w, h, g1, g2, c1, c2, c3); + paintHorizontalGradient(g, x, y, w, h, g1, g2, c1, c2, c3, mask); else - paintVerticalGradient(g, x, y, w, h, g1, g2, c1, c2, c3); + paintVerticalGradient(g, x, y, w, h, g1, g2, c1, c2, c3, mask); } /** * Paints a horizontal gradient. See {@link #paintGradient(Graphics, int, - * int, int, int, double, double, Color, Color, Color, int)} for details. + * int, int, int, float, float, Color, Color, Color, int, int[][])} + * for details. * * @param x the X coordinate of the upper left corner of the rectangle * @param y the Y coordinate of the upper left corner of the rectangle @@ -244,12 +298,16 @@ class MetalUtils * @param c1 the color 1 * @param c2 the color 2 * @param c3 the color 3 + * @param mask the mask that should be used when painting the gradient as + * described above */ static void paintHorizontalGradient(Graphics g, int x, int y, int w, int h, - double g1, double g2, Color c1, Color c2, - Color c3) + float g1, float g2, Color c1, Color c2, + Color c3, int[][] mask) { // Calculate the coordinates. + int y0 = y; + int y1 = y + h; // The size of the first gradient area (c1->2). int w1 = (int) (w * g1); // The size of the solid c2 area. @@ -276,11 +334,28 @@ class MetalUtils + c1.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(xc, y, xc, y + h); + if (mask != null) + { + y0 = mask[xc - x0][0] + y; + y1 = mask[xc - x0][1] + y; + } + g.drawLine(xc, y0, xc, y1); } // Paint solid c2 area. g.setColor(c2); - g.fillRect(x1, y, x2 - x1, h); + if (mask == null) + { + g.fillRect(x1, y, x2 - x1, h); + } + else + { + for (xc = x1; xc < x2; xc++) + { + y0 = mask[xc - x0][0] + y; + y1 = mask[xc - x0][1] + y; + g.drawLine(xc, y0, xc, y1); + } + } // Paint second gradient area (c2->c1). for (xc = x2; xc < x3; xc++) @@ -297,7 +372,12 @@ class MetalUtils + c2.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(xc, y, xc, y + h); + if (mask != null) + { + y0 = mask[xc - x0][0] + y; + y1 = mask[xc - x0][1] + y; + } + g.drawLine(xc, y0, xc, y1); } // Paint third gradient area (c1->c3). @@ -315,13 +395,18 @@ class MetalUtils + c1.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(xc, y, xc, y + h); + if (mask != null) + { + y0 = mask[xc - x0][0] + y; + y1 = mask[xc - x0][1] + y; + } + g.drawLine(xc, y0, xc, y1); } } /** * Paints a vertical gradient. See {@link #paintGradient(Graphics, int, int, - * int, int, double, double, Color, Color, Color, int)} for details. + * int, int, float, float, Color, Color, Color, int, int[][])} for details. * * @param x the X coordinate of the upper left corner of the rectangle * @param y the Y coordinate of the upper left corner of the rectangle @@ -332,12 +417,16 @@ class MetalUtils * @param c1 the color 1 * @param c2 the color 2 * @param c3 the color 3 + * @param mask the mask that should be used when painting the gradient as + * described above */ static void paintVerticalGradient(Graphics g, int x, int y, int w, int h, double g1, double g2, Color c1, Color c2, - Color c3) + Color c3, int[][] mask) { // Calculate the coordinates. + int x0 = x; + int x1 = x + w; // The size of the first gradient area (c1->2). int w1 = (int) (h * g1); // The size of the solid c2 area. @@ -364,11 +453,28 @@ class MetalUtils + c1.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(x, yc, x + w, yc); + if (mask != null) + { + x0 = mask[yc - y0][0] + x; + x1 = mask[yc - y0][1] + x; + } + g.drawLine(x0, yc, x1, yc); } // Paint solid c2 area. g.setColor(c2); - g.fillRect(x, y1, w, y2 - y1); + if (mask == null) + { + g.fillRect(x, y1, w, y2 - y1); + } + else + { + for (yc = y1; yc < y2; yc++) + { + x0 = mask[yc - y0][0] + x; + x1 = mask[yc - y0][1] + x; + g.drawLine(x0, yc, x1, yc); + } + } // Paint second gradient area (c2->c1). for (yc = y2; yc < y3; yc++) @@ -385,7 +491,12 @@ class MetalUtils + c2.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(x, yc, x + w, yc); + if (mask != null) + { + x0 = mask[yc - y0][0] + x; + x1 = mask[yc - y0][1] + x; + } + g.drawLine(x0, yc, x1, yc); } // Paint third gradient area (c1->c3). @@ -403,7 +514,12 @@ class MetalUtils + c1.getBlue()); Color interpolated = new Color(rInt, gInt, bInt); g.setColor(interpolated); - g.drawLine(x, yc, x + w, yc); + if (mask != null) + { + x0 = mask[yc - y0][0] + x; + x1 = mask[yc - y0][1] + x; + } + g.drawLine(x0, yc, x1, yc); } } } |
