double click support

src/graphics/ui/GUI.cpp

@@ -45,8 +45,11 @@ void GUI::onAssetsLoad(Assets* assets) {
     ), "core:root");
 }
 
-// @brief Mouse related input and logic handling 
+/// @brief Mouse related input and logic handling 
-void GUI::actMouse() {
+void GUI::actMouse(float delta) {
+    doubleClicked = false;
+    doubleClickTimer += delta + glm::length(Events::delta) * 0.1f;
+
     auto hover = container->getAt(Events::cursor, nullptr);
     if (this->hover && this->hover != hover) {
         this->hover->setHover(false);
@@ -62,7 +65,13 @@ void GUI::actMouse() {
     if (Events::jclicked(mousecode::BUTTON_1)) {
         if (pressed == nullptr && this->hover) {
             pressed = hover;
+            if (doubleClickTimer < doubleClickDelay) {
+                pressed->doubleClick(this, Events::cursor.x, Events::cursor.y);
+                doubleClicked = true;
+            } else {
                 pressed->click(this, Events::cursor.x, Events::cursor.y);
+            }
+            doubleClickTimer = 0.0f;
             if (focus && focus != pressed) {
                 focus->defocus();
             }
@@ -107,9 +116,11 @@ void GUI::actFocused() {
         if (Events::clicked(mousecode::BUTTON_1) && 
             (Events::jclicked(mousecode::BUTTON_1) || Events::delta.x || Events::delta.y))
         {
+            if (!doubleClicked) {
                 focus->mouseMove(this, Events::cursor.x, Events::cursor.y);
             }
         }
+    }
 }
 
 void GUI::act(float delta, const Viewport& vp) {
@@ -124,7 +135,7 @@ void GUI::act(float delta, const Viewport& vp) {
     auto prevfocus = focus;
 
     if (!Events::_cursor_locked) {
-        actMouse();
+        actMouse(delta);
     }
     
     if (focus) {
@@ -144,7 +155,7 @@ void GUI::draw(const DrawContext* pctx, Assets* assets) {
 
     Shader* uishader = assets->getShader("ui");
     uishader->use();
-    uishader->uniformMatrix("u_projview", uicamera->getProjection()*uicamera->getView());
+    uishader->uniformMatrix("u_projview", uicamera->getProjView());
 
     pctx->getBatch2D()->begin();
     container->draw(pctx, assets);
@@ -199,3 +210,11 @@ std::shared_ptr<Container> GUI::getContainer() const {
 void GUI::postRunnable(runnable callback) {
     postRunnables.push(callback);
 }
+
+void GUI::setDoubleClickDelay(float delay) {
+    doubleClickDelay = delay;
+}
+
+float GUI::getDoubleClickDelay() const {
+    return doubleClickDelay;
+}

src/graphics/ui/GUI.hpp

@@ -62,7 +62,12 @@ namespace gui {
         std::unique_ptr<Camera> uicamera;
         std::shared_ptr<Menu> menu;
         std::queue<runnable> postRunnables;
-        void actMouse();
+
+        float doubleClickTimer = 0.0f;
+        float doubleClickDelay = 0.5f;
+        bool doubleClicked = false;
+
+        void actMouse(float delta);
         void actFocused();
     public:
         GUI();
@@ -121,6 +126,9 @@ namespace gui {
         void onAssetsLoad(Assets* assets);
 
         void postRunnable(runnable callback);
+
+        void setDoubleClickDelay(float delay);
+        float getDoubleClickDelay() const;
     };
 }
 

src/graphics/ui/elements/TextBox.cpp

@@ -294,6 +294,41 @@ int TextBox::calcIndexAt(int x, int y) const {
     return std::min(offset+label->getTextLineOffset(line), input.length());
 }
 
+inline std::wstring get_alphabet(wchar_t c) {
+    std::wstring alphabet {c};
+    if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '_') {
+        return L"abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    } else if (c >= '0' && c <= '9') {
+        return L"0123456789";
+    }
+    return alphabet;
+}
+
+void TextBox::tokenSelectAt(int index) {
+    int left = index;
+    int right = index;
+    
+    std::wstring alphabet = get_alphabet(input.at(index));
+    while (left >= 0) {
+        if (alphabet.find(input.at(left)) == std::wstring::npos) {
+            break;
+        }
+        left--;
+    }
+    while (static_cast<size_t>(right) < input.length()) {
+        if (alphabet.find(input.at(right)) == std::wstring::npos) {
+            break;
+        }
+        right++;
+    }
+    select(left+1, right);
+}
+
+void TextBox::doubleClick(GUI* gui, int x, int y) {
+    UINode::doubleClick(gui, x, y);
+    tokenSelectAt(normalizeIndex(calcIndexAt(x, y)-1));
+}
+
 void TextBox::click(GUI*, int x, int y) {
     int index = normalizeIndex(calcIndexAt(x, y));
     selectionStart = index;

src/graphics/ui/elements/TextBox.hpp

@@ -47,6 +47,7 @@ namespace gui {
         bool eraseSelected();
         void resetSelection();
         void extendSelection(int index);
+        void tokenSelectAt(int index);
         size_t getLineLength(uint line) const;
 
         /// @brief Get total length of the selection 
@@ -141,6 +142,7 @@ namespace gui {
 
         virtual void onFocus(GUI*) override;
         virtual void refresh() override;
+        virtual void doubleClick(GUI*, int x, int y) override;
         virtual void click(GUI*, int, int) override;
         virtual void mouseMove(GUI*, int x, int y) override;
         virtual bool isFocuskeeper() const override {return true;}

src/graphics/ui/elements/UINode.cpp

@@ -64,10 +64,24 @@ UINode* UINode::listenAction(onaction action) {
     return this;
 }
 
+UINode* UINode::listenDoubleClick(onaction action) {
+    doubleClickCallbacks.push_back(action);
+    return this;
+}
+
 void UINode::click(GUI*, int, int) {
     pressed = true;
 }
 
+void UINode::doubleClick(GUI* gui, int x, int y) {
+    pressed = true;
+    if (isInside(glm::vec2(x, y))) {
+        for (auto callback : doubleClickCallbacks) {
+            callback(gui);
+        }
+    }
+}
+
 void UINode::mouseRelease(GUI* gui, int x, int y) {
     pressed = false;
     if (isInside(glm::vec2(x, y))) {

src/graphics/ui/elements/UINode.hpp

@@ -88,6 +88,8 @@ namespace gui {
         vec2supplier sizefunc = nullptr;
         /// @brief 'onclick' callbacks
         std::vector<onaction> actions;
+        /// @brief 'ondoubleclick' callbacks
+        std::vector<onaction> doubleClickCallbacks;
 
         UINode(glm::vec2 size);
     public:
@@ -138,8 +140,10 @@ namespace gui {
         int getZIndex() const;
 
         virtual UINode* listenAction(onaction action);
+        virtual UINode* listenDoubleClick(onaction action);
 
         virtual void onFocus(GUI*) {focused = true;}
+        virtual void doubleClick(GUI*, int x, int y);
         virtual void click(GUI*, int x, int y);
         virtual void clicked(GUI*, mousecode button) {}
         virtual void mouseMove(GUI*, int x, int y) {};

src/graphics/ui/gui_xml.cpp

@@ -123,15 +123,25 @@ static void _readUINode(UiXmlReader& reader, xml::xmlelement element, UINode& no
         std::string text = element->attr("onclick").getText();
         if (!text.empty()) {
             auto callback = scripting::create_runnable(
-                reader.getEnvironment(),
+                reader.getEnvironment(), text, reader.getFilename()
-                text,
-                reader.getFilename()
             );
             node.listenAction([callback](GUI*) {
                 callback();
             });
         }
     }
+
+    if (element->has("ondoubleclick")) {
+        std::string text = element->attr("ondoubleclick").getText();
+        if (!text.empty()) {
+            auto callback = scripting::create_runnable(
+                reader.getEnvironment(), text, reader.getFilename()
+            );
+            node.listenDoubleClick([callback](GUI*) {
+                callback();
+            });
+        }
+    }
 }
 
 static void _readContainer(UiXmlReader& reader, xml::xmlelement element, Container& container) {