implementing text input on osx

PanoPainter-OSX/main.cpp

@@ -265,6 +265,8 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     auto keyCode = [theEvent keyCode];
     auto chars = [theEvent characters];
     App::I.key_down(convert_key(keyCode));
+    if (const char* cstr = [chars cStringUsingEncoding:NSASCIIStringEncoding])
+        App::I.key_char(cstr[0]);
     CGLUnlockContext([[self openGLContext] CGLContextObj]);
 }
 - (void)keyUp:(NSEvent *)theEvent

data/layout.xml

@@ -175,6 +175,7 @@
         <border width="400" color="0 0 0 .9" pad="10" dir="col">
           <image-texture id="thumb-tex" width="64" height="64"/>
           <text text="Longer description for the error or the message." font-face="arial" font-size="11"></text>
+          <text-input width="100" height="100" color=".3"/>
           <node height="40" grow="1" dir="row" align="flex-end" justify="flex-end">
             <button id="btn-ok" text="Open Project" width="100" height="30" margin="0 10 0 0"/>
             <button id="btn-cancel" text="Cancel" width="60" height="30" pad="10"/>
@@ -394,11 +395,13 @@
           </scroll>
         </node>
         <!-- timeline -->
+        <!--
         <node height="100%" width="1" grow="1" dir="col" justify="flex-end">
           <border color=".3 .3 .3 .4" height="50" width="100%" pad="10">
             <slider-h id="frames-slider"></slider-h>
           </border>
         </node>
+        -->
       </node>
       <!-- status bar -->
       <!--<border height="30" width="100%" color=".15" border-color=".3" dir="row" pad="0 0 0 10" align="center">

engine/node_text_input.cpp

@@ -7,6 +7,18 @@ Node* NodeTextInput::clone_instantiate() const
     return new NodeTextInput();
 }
 
+void NodeTextInput::clone_finalize(Node* dest) const
+{
+    NodeBorder::clone_copy(dest);
+    NodeTextInput* n = static_cast<NodeTextInput*>(dest);
+    if (n->m_children.size())
+    {
+        auto t = n->m_children[0];
+        n->m_text = (NodeText*)t.get();
+    }
+    n->m_string = m_string;
+}
+
 void NodeTextInput::init()
 {
     init_controls();
@@ -20,6 +32,7 @@ void NodeTextInput::init_controls()
     m_text->m_font_size = 11;
     m_text->m_text = "TextInput";
     m_text->create();
+    m_string = "TextInput";
 }
 
 kEventResult NodeTextInput::handle_event(Event* e)
@@ -46,7 +59,13 @@ kEventResult NodeTextInput::handle_event(Event* e)
     case kEventType::KeyChar:
         if (ke->m_char >= 32 && ke->m_char < (32 + 96))
         {
-            m_string += (char)ke->m_key;
+            if (ke->m_char == 0x7f)
+            {
+                if (!m_string.empty())
+                    m_string.erase(m_string.end() - 1);
+            }
+            else
+                m_string += (char)ke->m_char;
             m_text->set_text(m_string.c_str());
         }
         break;

engine/node_text_input.h

@@ -8,6 +8,7 @@ public:
     NodeText* m_text;
     std::string m_string;
     virtual Node* clone_instantiate() const override;
+    virtual void clone_finalize(Node* dest) const override;
     virtual void init() override;
     void init_controls();
     virtual kEventResult handle_event(Event* e) override;