Fix #8033 - text size zoom

[roobuilder] / src / Builder4 / GtkView.vala

diff --git a/src/Builder4/GtkView.vala b/src/Builder4/GtkView.vala
index c3f9c0e..dfed016 100644 (file)
--- a/src/Builder4/GtkView.vala
+++ b/src/Builder4/GtkView.vala
@@ -20,6 +20,7 @@ public class Xcls_GtkView : Object
        public Xcls_sourceviewscroll sourceviewscroll;
        public Xcls_sourceview sourceview;
        public Xcls_buffer buffer;
+       public Xcls_keystate keystate;
        public Xcls_search_entry search_entry;
        public Xcls_search_results search_results;
        public Xcls_nextBtn nextBtn;
@@ -640,9 +641,11 @@ public class Xcls_GtkView : Object
                        this.el.tab_width = 4;
                        new Xcls_buffer( _this );
                        this.el.set_buffer ( _this.buffer.el  );
-                       var child_2 = new Xcls_EventControllerKey11( _this );
-                       child_2.ref();
-                       this.el.add_controller(  child_2.el );
+                       new Xcls_keystate( _this );
+                       this.el.add_controller(  _this.keystate.el );
+                       var child_3 = new Xcls_EventControllerScroll37( _this );
+                       child_3.ref();
+                       this.el.add_controller(  child_3.el );
 
                        // init method
 
@@ -953,28 +956,39 @@ public class Xcls_GtkView : Object
                // user defined functions
        }
 
-       public class Xcls_EventControllerKey11 : Object
+       public class Xcls_keystate : Object
        {
                public Gtk.EventControllerKey el;
                private Xcls_GtkView  _this;
 
 
                        // my vars (def)
+               public bool is_control;
 
                // ctor
-               public Xcls_EventControllerKey11(Xcls_GtkView _owner )
+               public Xcls_keystate(Xcls_GtkView _owner )
                {
                        _this = _owner;
+                       _this.keystate = this;
                        this.el = new Gtk.EventControllerKey();
 
                        // my vars (dec)
+                       this.is_control = false;
 
                        // set gobject values
 
                        //listeners
+                       this.el.key_released.connect( (keyval, keycode, state) => {
+                       
+                                if (keyval == Gdk.Key.Control_L || keyval == Gdk.Key.Control_R) {
+                                       this.is_control = false;
+                               }
+                       });
                        this.el.key_pressed.connect( (keyval, keycode, state) => {
                        
-                               
+                               if (keyval == Gdk.Key.Control_L || keyval == Gdk.Key.Control_R) {
+                                       this.is_control = true;
+                               }
                                 
                                 if (keyval == Gdk.Key.g && (state & Gdk.ModifierType.CONTROL_MASK ) > 0 ) {
                                    GLib.debug("SAVE: ctrl-g  pressed");
@@ -994,6 +1008,50 @@ public class Xcls_GtkView : Object
                // user defined functions
        }
 
+       public class Xcls_EventControllerScroll37 : Object
+       {
+               public Gtk.EventControllerScroll el;
+               private Xcls_GtkView  _this;
+
+
+                       // my vars (def)
+               public double distance;
+
+               // ctor
+               public Xcls_EventControllerScroll37(Xcls_GtkView _owner )
+               {
+                       _this = _owner;
+                       this.el = new Gtk.EventControllerScroll( Gtk.EventControllerScrollFlags.VERTICAL );
+
+                       // my vars (dec)
+                       this.distance = 0.0f;
+
+                       // set gobject values
+
+                       //listeners
+                       this.el.scroll.connect( (dx, dy) => {
+                               if (!_this.keystate.is_control) {
+                                       return false;
+                               }
+                               //GLib.debug("scroll %f",  dy);
+                               
+                               this.distance += dy;
+                               if (this.distance < 1) {
+                                       BuilderApplication.settings.editor_font_size ++;
+                                       this.distance = 0;
+                               }
+                               if (this.distance > -1) {
+                                       BuilderApplication.settings.editor_font_size --;
+                                       this.distance = 0;
+                               }
+                       
+                               return true;
+                       });
+               }
+
+               // user defined functions
+       }
+
 
 
        public class Xcls_Box12 : Object