From: Kevin Lamonte <kevin.lamonte@gmail.com>
Date: Wed, 6 Nov 2019 21:17:10 +0000 (-0600)
Subject: #65 stretch images to fit into text cells
X-Git-Url: https://git.nikiroo.be/?a=commitdiff_plain;h=b73fc652a8bae52fb3cf653d628cf749dce20324;p=fanfix-jexer.git

#65 stretch images to fit into text cells
---

diff --git a/src/jexer/backend/ECMA48Terminal.java b/src/jexer/backend/ECMA48Terminal.java
index 3933d22..ed2715c 100644
--- a/src/jexer/backend/ECMA48Terminal.java
+++ b/src/jexer/backend/ECMA48Terminal.java
@@ -3192,12 +3192,10 @@ public class ECMA48Terminal extends LogicalScreen
         int imageWidth = cells.get(0).getImage().getWidth();
         int imageHeight = cells.get(0).getImage().getHeight();
 
-        // cells.get(x).getImage() has a dithered bitmap containing indexes
-        // into the color palette.  Piece these together into one larger
-        // image for final rendering.
+        // Piece these together into one larger image for final rendering.
         int totalWidth = 0;
-        int fullWidth = cells.size() * getTextWidth();
-        int fullHeight = getTextHeight();
+        int fullWidth = cells.size() * imageWidth;
+        int fullHeight = imageHeight;
         for (int i = 0; i < cells.size(); i++) {
             totalWidth += cells.get(i).getImage().getWidth();
         }
@@ -3207,10 +3205,8 @@ public class ECMA48Terminal extends LogicalScreen
 
         int [] rgbArray;
         for (int i = 0; i < cells.size() - 1; i++) {
-            int tileWidth = Math.min(cells.get(i).getImage().getWidth(),
-                imageWidth);
-            int tileHeight = Math.min(cells.get(i).getImage().getHeight(),
-                imageHeight);
+            int tileWidth = imageWidth;
+            int tileHeight = imageHeight;
 
             if (false && cells.get(i).isInvertedImage()) {
                 // I used to put an all-white cell over the cursor, don't do
@@ -3278,7 +3274,7 @@ public class ECMA48Terminal extends LogicalScreen
         image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth,
             imageHeight, rgbArray, 0, totalWidth);
 
-        if (totalWidth < getTextWidth()) {
+        if (totalWidth < imageWidth) {
             int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB();
 
             for (int imageX = image.getWidth() - totalWidth;
@@ -3290,6 +3286,22 @@ public class ECMA48Terminal extends LogicalScreen
             }
         }
 
+        if ((image.getWidth() != cells.size() * getTextWidth())
+            || (image.getHeight() != getTextHeight())
+        ) {
+            // Rescale the image to fit the text cells it is going into.
+            BufferedImage newImage;
+            newImage = new BufferedImage(cells.size() * getTextWidth(),
+                getTextHeight(), BufferedImage.TYPE_INT_ARGB);
+
+            java.awt.Graphics gr = newImage.getGraphics();
+            gr.drawImage(image, 0, 0, newImage.getWidth(),
+                newImage.getHeight(), null, null);
+            gr.dispose();
+            image = newImage;
+            fullHeight = image.getHeight();
+        }
+
         // Dither the image.  It is ok to lose the original here.
         if (palette == null) {
             palette = new SixelPalette();
@@ -3507,8 +3519,8 @@ public class ECMA48Terminal extends LogicalScreen
         // Piece cells.get(x).getImage() pieces together into one larger
         // image for final rendering.
         int totalWidth = 0;
-        int fullWidth = cells.size() * getTextWidth();
-        int fullHeight = getTextHeight();
+        int fullWidth = cells.size() * imageWidth;
+        int fullHeight = imageHeight;
         for (int i = 0; i < cells.size(); i++) {
             totalWidth += cells.get(i).getImage().getWidth();
         }
@@ -3518,10 +3530,8 @@ public class ECMA48Terminal extends LogicalScreen
 
         int [] rgbArray;
         for (int i = 0; i < cells.size() - 1; i++) {
-            int tileWidth = Math.min(cells.get(i).getImage().getWidth(),
-                imageWidth);
-            int tileHeight = Math.min(cells.get(i).getImage().getHeight(),
-                imageHeight);
+            int tileWidth = imageWidth;
+            int tileHeight = imageHeight;
             if (false && cells.get(i).isInvertedImage()) {
                 // I used to put an all-white cell over the cursor, don't do
                 // that anymore.
@@ -3588,7 +3598,7 @@ public class ECMA48Terminal extends LogicalScreen
         image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth,
             imageHeight, rgbArray, 0, totalWidth);
 
-        if (totalWidth < getTextWidth()) {
+        if (totalWidth < imageWidth) {
             int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB();
 
             for (int imageX = image.getWidth() - totalWidth;
@@ -3600,6 +3610,22 @@ public class ECMA48Terminal extends LogicalScreen
             }
         }
 
+        if ((image.getWidth() != cells.size() * getTextWidth())
+            || (image.getHeight() != getTextHeight())
+        ) {
+            // Rescale the image to fit the text cells it is going into.
+            BufferedImage newImage;
+            newImage = new BufferedImage(cells.size() * getTextWidth(),
+                getTextHeight(), BufferedImage.TYPE_INT_ARGB);
+
+            java.awt.Graphics gr = newImage.getGraphics();
+            gr.drawImage(image, 0, 0, newImage.getWidth(),
+                newImage.getHeight(), null, null);
+            gr.dispose();
+            image = newImage;
+            fullHeight = image.getHeight();
+        }
+
         /*
          * From https://iterm2.com/documentation-images.html:
          *
@@ -3756,8 +3782,8 @@ public class ECMA48Terminal extends LogicalScreen
         // Piece cells.get(x).getImage() pieces together into one larger
         // image for final rendering.
         int totalWidth = 0;
-        int fullWidth = cells.size() * getTextWidth();
-        int fullHeight = getTextHeight();
+        int fullWidth = cells.size() * imageWidth;
+        int fullHeight = imageHeight;
         for (int i = 0; i < cells.size(); i++) {
             totalWidth += cells.get(i).getImage().getWidth();
         }
@@ -3767,10 +3793,8 @@ public class ECMA48Terminal extends LogicalScreen
 
         int [] rgbArray;
         for (int i = 0; i < cells.size() - 1; i++) {
-            int tileWidth = Math.min(cells.get(i).getImage().getWidth(),
-                imageWidth);
-            int tileHeight = Math.min(cells.get(i).getImage().getHeight(),
-                imageHeight);
+            int tileWidth = imageWidth;
+            int tileHeight = imageHeight;
             if (false && cells.get(i).isInvertedImage()) {
                 // I used to put an all-white cell over the cursor, don't do
                 // that anymore.
@@ -3837,7 +3861,7 @@ public class ECMA48Terminal extends LogicalScreen
         image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth,
             imageHeight, rgbArray, 0, totalWidth);
 
-        if (totalWidth < getTextWidth()) {
+        if (totalWidth < imageWidth) {
             int backgroundColor = cells.get(cells.size() - 1).getBackground().getRGB();
 
             for (int imageX = image.getWidth() - totalWidth;
@@ -3849,6 +3873,22 @@ public class ECMA48Terminal extends LogicalScreen
             }
         }
 
+        if ((image.getWidth() != cells.size() * getTextWidth())
+            || (image.getHeight() != getTextHeight())
+        ) {
+            // Rescale the image to fit the text cells it is going into.
+            BufferedImage newImage;
+            newImage = new BufferedImage(cells.size() * getTextWidth(),
+                getTextHeight(), BufferedImage.TYPE_INT_ARGB);
+
+            java.awt.Graphics gr = newImage.getGraphics();
+            gr.drawImage(image, 0, 0, newImage.getWidth(),
+                newImage.getHeight(), null, null);
+            gr.dispose();
+            image = newImage;
+            fullHeight = image.getHeight();
+        }
+
         if (jexerImageOption == JexerImageOption.PNG) {
             // Encode as PNG
             ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream(1024);
diff --git a/src/jexer/backend/SwingTerminal.java b/src/jexer/backend/SwingTerminal.java
index c2b335f..eb1616b 100644
--- a/src/jexer/backend/SwingTerminal.java
+++ b/src/jexer/backend/SwingTerminal.java
@@ -1244,9 +1244,11 @@ public class SwingTerminal extends LogicalScreen
         BufferedImage image = cell.getImage();
         if (image != null) {
             if (swing.getFrame() != null) {
-                gr.drawImage(image, xPixel, yPixel, swing.getFrame());
+                gr.drawImage(image, xPixel, yPixel, getTextWidth(),
+                    getTextHeight(), swing.getFrame());
             } else {
-                gr.drawImage(image, xPixel, yPixel, swing.getComponent());
+                gr.drawImage(image, xPixel, yPixel,  getTextWidth(),
+                    getTextHeight(),swing.getComponent());
             }
             return;
         }
diff --git a/src/jexer/demos/Demo6.java b/src/jexer/demos/Demo6.java
index db0b5c9..41d1f2c 100644
--- a/src/jexer/demos/Demo6.java
+++ b/src/jexer/demos/Demo6.java
@@ -111,7 +111,7 @@ public class Demo6 {
              * Make a new Swing window for the second application.
              */
             SwingBackend monitorBackend = new SwingBackend(width + 5,
-                height + 5, 16);
+                height + 5, 20);
 
             /*
              * Setup the second application, give it the basic file and