ImageUtils + awt: change scale parameters

diff --git a/src/be/nikiroo/utils/ImageUtils.java b/src/be/nikiroo/utils/ImageUtils.java
index 2b8ff8fa9ec722056904d310343761f979285924..877c8fa8c26b6b8a1a585505cf70f4a37d3d4fc7 100644 (file)
--- a/src/be/nikiroo/utils/ImageUtils.java
+++ b/src/be/nikiroo/utils/ImageUtils.java
@@ -44,40 +44,39 @@ public abstract class ImageUtils {
        /**
         * Scale a dimension.
         * 
-        * @param areaWidth
-        *            the base width of the target dimension for snap sizes
-        * @param areaHeight
-        *            the base height of the target dimension for snap sizes
+        * 
         * @param imageWidth
         *            the actual image width
         * @param imageHeight
         *            the actual image height
+        * @param areaWidth
+        *            the base width of the target dimension for snap sizes
+        * @param areaHeight
+        *            the base height of the target dimension for snap sizes
         * @param zoom
-        *            the zoom factor, or -1 for snap size
-        * @param zoomSnapWidth
-        *            if snap size, TRUE to snap to width (and FALSE, snap to
-        *            height)
+        *            the zoom factor (ignored on snap mode)
+        * @param snapMode
+        *            NULL for no snap mode, TRUE to snap to width and FALSE for
+        *            snap to height)
         * 
         * @return the scaled size, width is [0] and height is [1] (minimum is 1x1)
         */
-       protected static Integer[] scaleSize(int areaWidth, int areaHeight,
-                       int imageWidth, int imageHeight, double zoom, boolean zoomSnapWidth) {
+       protected static Integer[] scaleSize(int imageWidth, int imageHeight,
+                       int areaWidth, int areaHeight, double zoom, Boolean snapMode) {
                int width;
                int height;
-               if (zoom > 0) {
+               if (snapMode == null) {
                        width = (int) Math.round(imageWidth * zoom);
                        height = (int) Math.round(imageHeight * zoom);
+               } else if (snapMode) {
+                       width = areaWidth;
+                       height = (int) Math
+                                       .round((((double) areaWidth) / imageWidth) * imageHeight);
                } else {
-                       if (zoomSnapWidth) {
-                               width = areaWidth;
-                               height = (int) Math.round(
-                                               (((double) areaWidth) / imageWidth) * imageHeight);
-                       } else {
-                               height = areaHeight;
-                               width = (int) Math.round(
-                                               (((double) areaHeight) / imageHeight) * imageWidth);
+                       height = areaHeight;
+                       width = (int) Math
+                                       .round((((double) areaHeight) / imageHeight) * imageWidth);
 
-                       }
                }
 
                if (width < 1)

diff --git a/src/be/nikiroo/utils/ui/ImageUtilsAwt.java b/src/be/nikiroo/utils/ui/ImageUtilsAwt.java
index 19c16a01749eff75fc430d68222fb7e243b2f5b4..c273e0d45879628543dcab75f2c7c88f133224d9 100644 (file)
--- a/src/be/nikiroo/utils/ui/ImageUtilsAwt.java
+++ b/src/be/nikiroo/utils/ui/ImageUtilsAwt.java
@@ -262,32 +262,69 @@ public class ImageUtilsAwt extends ImageUtils {
                return image;
        }
 
+       /**
+        * Scale a dimension.
+        * 
+        * @param imageSize
+        *            the actual image size
+        * @param areaSize
+        *            the base size of the target to get snap sizes for
+        * @param zoom
+        *            the zoom factor (ignored on snap mode)
+        * @param snapMode
+        *            NULL for no snap mode, TRUE to snap to width and FALSE for
+        *            snap to height)
+        * 
+        * @return the scaled (minimum is 1x1)
+        */
+       public static Dimension scaleSize(Dimension imageSize, Dimension areaSize,
+                       double zoom, Boolean snapMode) {
+               Integer[] sz = scaleSize(imageSize.width, imageSize.height,
+                               areaSize.width, areaSize.height, zoom, snapMode);
+               return new Dimension(sz[0], sz[1]);
+       }
+
        /**
         * Resize the given image.
         * 
+        * @param image
+        *            the image to resize
         * @param areaSize
         *            the base size of the target dimension for snap sizes
+        * @param zoom
+        *            the zoom factor (ignored on snap mode)
+        * @param snapMode
+        *            NULL for no snap mode, TRUE to snap to width and FALSE for
+        *            snap to height)
+        * 
+        * @return a new, resized image
+        */
+       public static BufferedImage scaleImage(BufferedImage image,
+                       Dimension areaSize, double zoom, Boolean snapMode) {
+               Dimension scaledSize = scaleSize(
+                               new Dimension(image.getWidth(), image.getHeight()), areaSize,
+                               zoom, snapMode);
+
+               return scaleImage(image, scaledSize);
+       }
+
+       /**
+        * Resize the given image.
+        * 
         * @param image
         *            the image to resize
-        * @param zoom
-        *            the zoom factor or -1 for snap size
-        * @param zoomSnapWidth
-        *            if snap size, TRUE to snap to width (and FALSE, snap to
-        *            height)
+        * @param targetSize
+        *            the target size
         * 
         * @return a new, resized image
         */
-       public static BufferedImage scaleImage(Dimension areaSize,
-                       BufferedImage image, double zoom, boolean zoomSnapWidth) {
-               Integer scaledSize[] = scaleSize(areaSize.width, areaSize.height,
-                               image.getWidth(), image.getHeight(), zoom, zoomSnapWidth);
-               int width = scaledSize[0];
-               int height = scaledSize[1];
-               BufferedImage resizedImage = new BufferedImage(width, height,
-                               BufferedImage.TYPE_4BYTE_ABGR);
+       public static BufferedImage scaleImage(BufferedImage image,
+                       Dimension targetSize) {
+               BufferedImage resizedImage = new BufferedImage(targetSize.width,
+                               targetSize.height, BufferedImage.TYPE_4BYTE_ABGR);
                Graphics2D g = resizedImage.createGraphics();
                try {
-                       g.drawImage(image, 0, 0, width, height, null);
+                       g.drawImage(image, 0, 0, targetSize.width, targetSize.height, null);
                } finally {
                        g.dispose();
                }