From bd639caa0bbf010c415d197b93d0f30a6cb8f1e4 Mon Sep 17 00:00:00 2001
From: Pacien TRAN-GIRARD
Date: Thu, 27 Feb 2014 14:53:05 +0100
Subject: Code refactoring to match MVC
---
.../nikiroo/utils/gui/JBackgroundPanel.java | 308 +++++++++++++++++++++
1 file changed, 308 insertions(+)
create mode 100644 src/net/homelinux/nikiroo/utils/gui/JBackgroundPanel.java
(limited to 'src/net/homelinux/nikiroo')
diff --git a/src/net/homelinux/nikiroo/utils/gui/JBackgroundPanel.java b/src/net/homelinux/nikiroo/utils/gui/JBackgroundPanel.java
new file mode 100644
index 0000000..ba53b86
--- /dev/null
+++ b/src/net/homelinux/nikiroo/utils/gui/JBackgroundPanel.java
@@ -0,0 +1,308 @@
+package net.homelinux.nikiroo.utils.gui;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.Insets;
+import java.awt.LayoutManager;
+import java.awt.Paint;
+import java.awt.Rectangle;
+
+import javax.swing.ImageIcon;
+import javax.swing.JComponent;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JViewport;
+
+/**
+ * Support custom painting on a panel in the form of images - that can be
+ * scaled, tiled or painted at original size non solid painting - that
+ * can be done by using a Paint object Also, any component added directly
+ * to this panel will be made non-opaque so that the custom painting can show
+ * through.
+ */
+public class JBackgroundPanel extends JPanel {
+ private static final long serialVersionUID = 1L;
+
+ public static final int SCALED = 0;
+ public static final int TILED = 1;
+ public static final int ACTUAL = 2;
+ public static final int RATIO = 3;
+
+ private Paint painter;
+ private Image image;
+ private int style = SCALED;
+ private float alignmentX = 0.5f;
+ private float alignmentY = 0.5f;
+ private boolean isTransparentAdd = true;
+
+ /**
+ * Empty {@link JBackgroundPanel}.
+ */
+ public JBackgroundPanel() {
+ }
+
+ /**
+ * Empty {@link JBackgroundPanel} with the given {@link LayoutManager}.
+ */
+ public JBackgroundPanel(LayoutManager layout) {
+ super(layout);
+ }
+
+ /*
+ * Set image as the background with the SCALED style
+ */
+ public JBackgroundPanel(ImageIcon image) {
+ this(image.getImage());
+ }
+
+ /*
+ * Set image as the background with the SCALED style
+ */
+ public JBackgroundPanel(ImageIcon image, int style) {
+ this(image.getImage(), style);
+ }
+
+ /*
+ * Set image as the backround with the specified style and alignment
+ */
+ public JBackgroundPanel(ImageIcon image, int style, float alignmentX, float alignmentY) {
+ this(image.getImage(), style, alignmentX, alignmentY);
+ }
+
+ /*
+ * Set image as the background with the SCALED style
+ */
+ public JBackgroundPanel(Image image) {
+ this(image, SCALED);
+ }
+
+ /*
+ * Set image as the background with the specified style
+ */
+ public JBackgroundPanel(Image image, int style) {
+ setImage(image);
+ setStyle(style);
+ setLayout(new BorderLayout());
+ }
+
+ /*
+ * Set image as the backround with the specified style and alignment
+ */
+ public JBackgroundPanel(Image image, int style, float alignmentX, float alignmentY) {
+ setImage(image);
+ setStyle(style);
+ setImageAlignmentX(alignmentX);
+ setImageAlignmentY(alignmentY);
+ setLayout(new BorderLayout());
+ }
+
+ /*
+ * Use the Paint interface to paint a background
+ */
+ public JBackgroundPanel(Paint painter) {
+ setPaint(painter);
+ setLayout(new BorderLayout());
+ }
+
+ /*
+ * Set the image used as the background
+ */
+ public void setImage(Image image) {
+ this.image = image;
+ repaint();
+ }
+
+ /*
+ * Set the style used to paint the background image
+ */
+ public void setStyle(int style) {
+ this.style = style;
+ repaint();
+ }
+
+ /*
+ * Set the Paint object used to paint the background
+ */
+ public void setPaint(Paint painter) {
+ this.painter = painter;
+ repaint();
+ }
+
+ /*
+ * Specify the horizontal alignment of the image when using ACTUAL style
+ */
+ public void setImageAlignmentX(float alignmentX) {
+ this.alignmentX = alignmentX > 1.0f ? 1.0f : alignmentX < 0.0f ? 0.0f : alignmentX;
+ repaint();
+ }
+
+ /*
+ * Specify the horizontal alignment of the image when using ACTUAL style
+ */
+ public void setImageAlignmentY(float alignmentY) {
+ this.alignmentY = alignmentY > 1.0f ? 1.0f : alignmentY < 0.0f ? 0.0f : alignmentY;
+ repaint();
+ }
+
+ /*
+ * Override method so we can make the component transparent
+ */
+ public void add(JComponent component) {
+ add(component, null);
+ }
+
+ /*
+ * Override to provide a preferred size equal to the image size
+ */
+ @Override
+ public Dimension getPreferredSize() {
+ if (image == null)
+ return super.getPreferredSize();
+ else
+ return new Dimension(image.getWidth(null), image.getHeight(null));
+ }
+
+ /*
+ * Override method so we can make the component transparent
+ */
+ public void add(JComponent component, Object constraints) {
+ if (isTransparentAdd) {
+ makeComponentTransparent(component);
+ }
+
+ super.add(component, constraints);
+ }
+
+ /*
+ * Controls whether components added to this panel should automatically be
+ * made transparent. That is, setOpaque(false) will be invoked. The default
+ * is set to true.
+ */
+ public void setTransparentAdd(boolean isTransparentAdd) {
+ this.isTransparentAdd = isTransparentAdd;
+ }
+
+ /*
+ * Try to make the component transparent. For components that use renderers,
+ * like JTable, you will also need to change the renderer to be transparent.
+ * An easy way to do this it to set the background of the table to a Color
+ * using an alpha value of 0.
+ */
+ private void makeComponentTransparent(JComponent component) {
+ component.setOpaque(false);
+
+ if (component instanceof JScrollPane) {
+ JScrollPane scrollPane = (JScrollPane) component;
+ JViewport viewport = scrollPane.getViewport();
+ viewport.setOpaque(false);
+ Component c = viewport.getView();
+
+ if (c instanceof JComponent) {
+ ((JComponent) c).setOpaque(false);
+ }
+ }
+ }
+
+ /*
+ * Add custom painting
+ */
+ @Override
+ protected void paintComponent(Graphics g) {
+ super.paintComponent(g);
+
+ // Invoke the painter for the background
+
+ if (painter != null) {
+ Dimension d = getSize();
+ Graphics2D g2 = (Graphics2D) g;
+ g2.setPaint(painter);
+ g2.fill(new Rectangle(0, 0, d.width, d.height));
+ }
+
+ // Draw the image
+
+ if (image == null)
+ return;
+
+ switch (style) {
+ case RATIO:
+ drawRatio(g);
+ break;
+
+ case SCALED:
+ drawScaled(g);
+ break;
+
+ case TILED:
+ drawTiled(g);
+ break;
+
+ case ACTUAL:
+ drawActual(g);
+ break;
+
+ default:
+ drawScaled(g);
+ }
+ }
+
+ /*
+ * Custom painting code for drawing a SCALED image as the background
+ */
+ private void drawScaled(Graphics g) {
+ Dimension d = getSize();
+ g.drawImage(image, 0, 0, d.width, d.height, null);
+ }
+
+ /*
+ * Custom painting code for drawing TILED images as the background
+ */
+ private void drawTiled(Graphics g) {
+ Dimension d = getSize();
+ int width = image.getWidth(null);
+ int height = image.getHeight(null);
+
+ for (int x = 0; x < d.width; x += width) {
+ for (int y = 0; y < d.height; y += height) {
+ g.drawImage(image, x, y, null, null);
+ }
+ }
+ }
+
+ /*
+ * Custom painting code for drawing the ACTUAL image as the background. The
+ * image is positioned in the panel based on the horizontal and vertical
+ * alignments specified.
+ */
+ private void drawActual(Graphics g) {
+ Dimension d = getSize();
+ Insets insets = getInsets();
+ int width = d.width - insets.left - insets.right;
+ int height = d.height - insets.top - insets.left;
+ float x = (width - image.getWidth(null)) * alignmentX;
+ float y = (height - image.getHeight(null)) * alignmentY;
+ g.drawImage(image, (int) x + insets.left, (int) y + insets.top, this);
+ }
+
+ private void drawRatio(Graphics g) {
+ if (image != null && g != null) {
+ // si la dimension actuelle est > � la preferedSize (qui est
+ // elle-meme a la taille de l'avatar)
+ int h = (this.getHeight() - image.getHeight(null)) / 2;
+ int w = (this.getWidth() - image.getWidth(null)) / 2;
+ if (h < 0) {
+ h = 0;
+ }
+ if (w < 0) {
+ w = 0;
+ }
+ // TODO: alignment, solid paint
+
+ g.drawImage(image, w, h, null, null);
+ }
+ }
+}
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