From 00db8ef1dcc357a8d1f8b71d051152f0c78c8948 Mon Sep 17 00:00:00 2001
From: drdev <drdev@cardforge.org>
Date: Tue, 15 Apr 2014 05:13:04 +0000
Subject: [PATCH] Support moving dialogs around by dragging titlebar

---
 .../src/forge/toolbox/FContainer.java         |  4 +-
 .../src/forge/toolbox/FDialog.java            | 61 +++++++++++++++++--
 2 files changed, 58 insertions(+), 7 deletions(-)

diff --git a/forge-gui-mobile/src/forge/toolbox/FContainer.java b/forge-gui-mobile/src/forge/toolbox/FContainer.java
index 31dd7e9632f..b03367a1b1c 100644
--- a/forge-gui-mobile/src/forge/toolbox/FContainer.java
+++ b/forge-gui-mobile/src/forge/toolbox/FContainer.java
@@ -49,11 +49,13 @@ public abstract class FContainer extends FDisplayObject {
     @Override
     public void setBounds(float x, float y, float width, float height) {
         super.setBounds(x, y, width, height);
-        doLayout(width, height);
+        doLayout(width, height); //always re-do layout when setBounds used
     }
 
     @Override
     public void setSize(float width, float height) {
+        if (getWidth() == width && getHeight() == height) { return; }
+
         super.setSize(width, height);
         doLayout(width, height);
     }
diff --git a/forge-gui-mobile/src/forge/toolbox/FDialog.java b/forge-gui-mobile/src/forge/toolbox/FDialog.java
index e3217d696b8..6f56ab38413 100644
--- a/forge-gui-mobile/src/forge/toolbox/FDialog.java
+++ b/forge-gui-mobile/src/forge/toolbox/FDialog.java
@@ -16,11 +16,11 @@ public abstract class FDialog extends FOverlay {
     private static final float TITLE_HEIGHT = Math.round(Utils.AVG_FINGER_HEIGHT * 0.6f);
     private static float INSETS = 10;
 
-    private FLabel lblTitlebar;
+    private Titlebar lblTitlebar;
     private float totalHeight;
 
     protected FDialog(String title) {
-        lblTitlebar = add(new FLabel.Builder().text(title).icon(FSkinImage.FAVICON).fontSize(12).align(HAlignment.LEFT).build());
+        lblTitlebar = add(new Titlebar(title));
     }
 
     @Override
@@ -49,9 +49,9 @@ public abstract class FDialog extends FOverlay {
     protected void drawBackground(Graphics g) {
         super.drawBackground(g);
 
-        float x = INSETS;
+        float x = lblTitlebar.getLeft();
         float y = lblTitlebar.getTop();
-        float w = getWidth() - 2 * x;
+        float w = lblTitlebar.getWidth();
         float h = totalHeight;
         g.drawImage(FSkinTexture.BG_TEXTURE, x, y, w, h);
         g.fillRect(FScreen.TEXTURE_OVERLAY_COLOR, x, y, w, h);
@@ -62,9 +62,9 @@ public abstract class FDialog extends FOverlay {
 
     @Override
     protected void drawOverlay(Graphics g) {
-        float x = INSETS;
+        float x = lblTitlebar.getLeft();
         float y = lblTitlebar.getTop();
-        float w = getWidth() - 2 * x;
+        float w = lblTitlebar.getWidth();
         float h = totalHeight;
 
         //draw border around dialog
@@ -74,4 +74,53 @@ public abstract class FDialog extends FOverlay {
         y += TITLE_HEIGHT;
         g.drawLine(1, BORDER_COLOR, x, y, x + w, y);
     }
+
+    private class Titlebar extends FLabel {
+        private Titlebar(String title) {
+            super(new FLabel.Builder().text(title).icon(FSkinImage.FAVICON).fontSize(12).align(HAlignment.LEFT));
+        }
+
+        @Override
+        public boolean pan(float x, float y, float deltaX, float deltaY) {
+            for (FDisplayObject child : FDialog.this.getChildren()) {
+                child.setLeft(child.getLeft() + deltaX);
+                child.setTop(child.getTop() + deltaY);
+            }
+            return true;
+        }
+
+        @Override
+        public boolean panStop(float x, float y) {
+            //ensure titlebar in view after stopping panning so it's accessible
+            float dx = 0;
+            float dy = 0;
+            float maxLeft = FDialog.this.getWidth() - lblTitlebar.getHeight();
+            if (lblTitlebar.getLeft() > maxLeft) {
+                dx = maxLeft - lblTitlebar.getLeft();
+            }
+            else {
+                float minRight = lblTitlebar.getHeight();
+                if (lblTitlebar.getRight() < minRight) {
+                    dx = minRight - lblTitlebar.getRight();
+                }
+            }
+            float maxTop = FDialog.this.getHeight() - lblTitlebar.getHeight();
+            if (lblTitlebar.getTop() > maxTop) {
+                dy = maxTop - lblTitlebar.getTop();
+            }
+            else {
+                float minBottom = lblTitlebar.getHeight();
+                if (lblTitlebar.getBottom() < minBottom) {
+                    dy = minBottom - lblTitlebar.getBottom();
+                }
+            }
+            if (dx != 0 || dy != 0) {
+                for (FDisplayObject child : FDialog.this.getChildren()) {
+                    child.setLeft(child.getLeft() + dx);
+                    child.setTop(child.getTop() + dy);
+                }
+            }
+            return true;
+        }
+    }
 }