From 78e9cbc4451ff4c23e3397aee403df65806d9c5e Mon Sep 17 00:00:00 2001
From: Andy Stewart <lazycat.manatee@gmail.com>
Date: Sat, 29 Feb 2020 19:30:41 +0800
Subject: [PATCH] Relayout mindmap when window resize.

---
 app/mindmap/buffer.py            |  3 +++
 app/mindmap/index.html           |  4 +++
 app/mindmap/jsmind.js            | 42 +++++++++++++++++---------------
 app/mindmap/jsmind.screenshot.js |  4 +--
 core/buffer.py                   |  3 +++
 eaf.py                           |  3 +++
 6 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/app/mindmap/buffer.py b/app/mindmap/buffer.py
index 10ea02e..154fa77 100644
--- a/app/mindmap/buffer.py
+++ b/app/mindmap/buffer.py
@@ -51,6 +51,9 @@ class AppBuffer(BrowserBuffer):
 
         QTimer.singleShot(500, self.init_file)
 
+    def resize_view(self):
+        self.buffer_widget.eval_js("relayout();")
+
     def init_file(self):
         self.url = os.path.expanduser(self.url)
 
diff --git a/app/mindmap/index.html b/app/mindmap/index.html
index 50e61fd..3de7979 100644
--- a/app/mindmap/index.html
+++ b/app/mindmap/index.html
@@ -193,6 +193,10 @@
                  _jm.set_node_background_image(selected_id, "file://" + image);
              }
          }
+
+         function relayout() {
+             _jm.view.relayout();
+         }
         </script>
     </body>
 </html>
diff --git a/app/mindmap/jsmind.js b/app/mindmap/jsmind.js
index 7a10471..42f0c72 100644
--- a/app/mindmap/jsmind.js
+++ b/app/mindmap/jsmind.js
@@ -19,8 +19,8 @@
     // an noop function define
     var _noop = function(){};
     var logger = (typeof console === 'undefined')?{
-            log:_noop, debug:_noop, error:_noop, warn:_noop, info:_noop
-        }:console;
+        log:_noop, debug:_noop, error:_noop, warn:_noop, info:_noop
+    }:console;
 
     // check global variables
     if(typeof module === 'undefined' || !module.exports){
@@ -1041,8 +1041,8 @@
                 for(var o in a){
                     if(o in b){
                         if(typeof b[o] === 'object' &&
-                            Object.prototype.toString.call(b[o]).toLowerCase() == '[object object]' &&
-                            !b[o].length){
+                           Object.prototype.toString.call(b[o]).toLowerCase() == '[object object]' &&
+                           !b[o].length){
                             jm.util.json.merge(b[o], a[o]);
                         }else{
                             b[o] = a[o];
@@ -1668,7 +1668,7 @@
 
     };
 
-// ============= data provider =============================================
+    // ============= data provider =============================================
 
     jm.data_provider = function(jm){
         this.jm = jm;
@@ -1783,15 +1783,15 @@
                     }
                 }
                 /*
-                var boundary = Math.ceil(children_count/2);
-                var i = children_count;
-                while(i--){
-                    if(i>=boundary){
-                        this._layout_direction_side(children[i],jm.direction.left, children_count-i-1);
-                    }else{
-                        this._layout_direction_side(children[i],jm.direction.right, i);
-                    }
-                }*/
+                  var boundary = Math.ceil(children_count/2);
+                  var i = children_count;
+                  while(i--){
+                  if(i>=boundary){
+                  this._layout_direction_side(children[i],jm.direction.left, children_count-i-1);
+                  }else{
+                  this._layout_direction_side(children[i],jm.direction.right, i);
+                  }
+                  }*/
 
             }
         },
@@ -2388,7 +2388,7 @@
         select_node:function(node){
             if(!!this.selected_node){
                 this.selected_node._data.view.element.className =
-                this.selected_node._data.view.element.className.replace(/\s*selected\b/i,'');
+                    this.selected_node._data.view.element.className.replace(/\s*selected\b/i,'');
                 this.reset_node_custom_style(this.selected_node);
             }
             if(!!node){
@@ -2671,13 +2671,15 @@
             jm.util.canvas.clear(ctx,0,0,this.size.w,this.size.h);
         },
 
-        show_lines:function(canvas_ctx){
+        show_lines:function(canvas_ctx, fill_background){
             this.clear_lines(canvas_ctx);
 
-            // Draw background, use to save screenshot.
-            var ctx = canvas_ctx || this.canvas_ctx;
-            ctx.fillStyle = "#FFFFFF";
-            ctx.fillRect(0, 0, this.size.w, this.size.h);
+            if (fill_background) {
+                // Draw background, use to save screenshot.
+                var ctx = canvas_ctx || this.canvas_ctx;
+                ctx.fillStyle = "#FFFFFF";
+                ctx.fillRect(0, 0, this.size.w, this.size.h);
+            }
 
             var nodes = this.jm.mind.nodes;
             var node = null;
diff --git a/app/mindmap/jsmind.screenshot.js b/app/mindmap/jsmind.screenshot.js
index 9da675f..de9d480 100644
--- a/app/mindmap/jsmind.screenshot.js
+++ b/app/mindmap/jsmind.screenshot.js
@@ -1,7 +1,7 @@
 /*
  * Released under BSD License
  * Copyright (c) 2014-2015 hizzgdev@163.com
- * 
+ *
  * Project Home:
  *   https://github.com/hizzgdev/jsmind/
  */
@@ -178,7 +178,7 @@
         },
 
         _draw_lines:function(){
-            this.jm.view.show_lines(this.canvas_ctx);
+            this.jm.view.show_lines(this.canvas_ctx, true);
         },
 
         _draw_nodes:function(callback){
diff --git a/core/buffer.py b/core/buffer.py
index f9b23e8..e93ceb8 100755
--- a/core/buffer.py
+++ b/core/buffer.py
@@ -233,6 +233,9 @@ class Buffer(QGraphicsScene):
     def some_view_show(self):
         pass
 
+    def resize_view(self):
+        pass
+
     def get_key_event_widgets(self):
         return [self.buffer_widget]
 
diff --git a/eaf.py b/eaf.py
index affc213..b3f88a4 100755
--- a/eaf.py
+++ b/eaf.py
@@ -257,6 +257,9 @@ class EAF(dbus.service.Object):
                 else:
                     buffer.buffer_widget.resize(emacs_width, emacs_height)
 
+                # Send resize signal to buffer.
+                buffer.resize_view()
+
     @dbus.service.method(EAF_DBUS_NAME, in_signature="", out_signature="")
     def kill_emacs(self):
         tmp_buffer_dict = {}