added tooltips

src/graphics/ui/GUI.cpp

@@ -1,9 +1,14 @@
 #include "GUI.hpp"
+
+#include "gui_util.hpp"
+
 #include "elements/UINode.hpp"
+#include "elements/Label.hpp"
 #include "elements/Menu.hpp"
 
 #include "../../assets/Assets.hpp"
 #include "../../frontend/UiDocument.hpp"
+#include "../../frontend/locale.hpp"
 #include "../../graphics/core/Batch2D.hpp"
 #include "../../graphics/core/Shader.hpp"
 #include "../../graphics/core/DrawContext.hpp"
@@ -27,6 +32,15 @@ GUI::GUI() {
     menu->setId("menu");
     container->add(menu);
     container->setScrollable(false);
+
+    tooltip = guiutil::create(
+        "<container color='#000000A0' interactive='false' z-index='999'>"
+            "<label id='tooltip.label' pos='2' autoresize='true'></label>"
+        "</container>"
+    );
+    store("tooltip", tooltip);
+    store("tooltip.label", UINode::find(tooltip, "tooltip.label"));
+    container->add(tooltip);
 }
 
 GUI::~GUI() {
@@ -45,10 +59,34 @@ void GUI::onAssetsLoad(Assets* assets) {
     ), "core:root");
 }
 
+void GUI::updateTooltip(float delta) {
+    float mouseDelta = glm::length(Events::delta);
+    if ((hover && mouseDelta < 1.0f) || 
+        (hover && hover->isInside(Events::cursor) && tooltipTimer >= tooltipDelay)) {
+        if (tooltipTimer + delta >= tooltipDelay) {
+            auto label = std::dynamic_pointer_cast<gui::Label>(get("tooltip.label"));
+            const auto& text = hover->getTooltip();
+            if (label && !text.empty()) {
+                tooltip->setVisible(true);
+                tooltip->setPos(Events::cursor+glm::vec2(10.0f));
+                label->setText(langs::get(text));
+                tooltip->setSize(label->getSize()+glm::vec2(4.0f));
+            }
+        }
+        tooltipTimer += delta;
+    } else {
+        tooltipTimer = 0.0f;
+        tooltip->setVisible(false);
+    }
+}
+
 /// @brief Mouse related input and logic handling 
 void GUI::actMouse(float delta) {
+    updateTooltip(delta);
+
+    float mouseDelta = glm::length(Events::delta);
     doubleClicked = false;
-    doubleClickTimer += delta + glm::length(Events::delta) * 0.1f;
+    doubleClickTimer += delta + mouseDelta * 0.1f;
 
     auto hover = container->getAt(Events::cursor, nullptr);
     if (this->hover && this->hover != hover) {

src/graphics/ui/GUI.hpp

@@ -54,21 +54,25 @@ namespace gui {
     /// @brief The main UI controller
     class GUI {
         std::shared_ptr<Container> container;
-        std::shared_ptr<UINode> hover = nullptr;
-        std::shared_ptr<UINode> pressed = nullptr;
-        std::shared_ptr<UINode> focus = nullptr;
+        std::shared_ptr<UINode> hover;
+        std::shared_ptr<UINode> pressed;
+        std::shared_ptr<UINode> focus;
+        std::shared_ptr<UINode> tooltip;
         std::unordered_map<std::string, std::shared_ptr<UINode>> storage;
 
         std::unique_ptr<Camera> uicamera;
         std::shared_ptr<Menu> menu;
         std::queue<runnable> postRunnables;
 
+        float tooltipTimer = 0.0f;
+        float tooltipDelay = 0.5f;
         float doubleClickTimer = 0.0f;
         float doubleClickDelay = 0.5f;
         bool doubleClicked = false;
 
         void actMouse(float delta);
         void actFocused();
+        void updateTooltip(float delta);
     public:
         GUI();
         ~GUI();

src/graphics/ui/elements/InventoryView.cpp

@@ -1,7 +1,9 @@
 #include "InventoryView.hpp"
+
 #include "../../../assets/Assets.hpp"
 #include "../../../content/Content.hpp"
 #include "../../../frontend/LevelFrontend.hpp"
+#include "../../../frontend/locale.hpp"
 #include "../../../items/Inventories.hpp"
 #include "../../../items/Inventory.hpp"
 #include "../../../items/ItemDef.hpp"
@@ -22,7 +24,6 @@
 #include "../../render/BlocksPreview.hpp"
 #include "../GUI.hpp"
 
-#include <iostream>
 #include <glm/glm.hpp>
 
 using namespace gui;
@@ -270,6 +271,17 @@ void SlotView::onFocus(gui::GUI* gui) {
     clicked(gui, mousecode::BUTTON_1);
 }
 
+const std::wstring SlotView::getTooltip() const {
+    const auto str = UINode::getTooltip();
+    if (!str.empty() || bound->isEmpty()) {
+        return str;
+    }
+    auto def = content->getIndices()->getItemDef(bound->getItemId());
+    return util::capitalized(
+        langs::get(util::str2wstr_utf8(def->caption))
+    ); // TODO: cache
+}
+
 void SlotView::bind(
     int64_t inventoryid,
     ItemStack& stack, 

src/graphics/ui/elements/InventoryView.hpp

@@ -63,6 +63,7 @@ namespace gui {
 
         virtual void clicked(gui::GUI*, mousecode) override;
         virtual void onFocus(gui::GUI*) override;
+        virtual const std::wstring getTooltip() const override;
 
         void bind(
             int64_t inventoryid,

src/graphics/ui/elements/Label.cpp

@@ -64,12 +64,28 @@ Label::Label(std::wstring text, std::string fontName)
     cache.update(this->text, multiline, textWrap);
 }
 
+glm::vec2 Label::calcSize() {
+    auto font = cache.font;
+    uint lineHeight = font->getLineHeight();
+    if (cache.lines.size() > 1) {
+        lineHeight *= lineInterval;
+    }
+    return glm::vec2 (
+        cache.font->calcWidth(text), 
+        lineHeight * cache.lines.size() + font->getYOffset()
+    );
+}
+
 void Label::setText(std::wstring text) {
     if (text == this->text && !cache.resetFlag) {
         return;
     }
     this->text = text;
     cache.update(this->text, multiline, textWrap);
+
+    if (cache.font) {
+        setSize(calcSize());
+    }
 }
 
 const std::wstring& Label::getText() const {
@@ -156,10 +172,10 @@ void Label::draw(const DrawContext* pctx, Assets* assets) {
         lineHeight *= lineInterval;
     }
     glm::vec2 size = getSize();
-    glm::vec2 newsize (
-        font->calcWidth(text), 
-        lineHeight * cache.lines.size() + font->getYOffset()
-    );
+    glm::vec2 newsize = calcSize();
+    if (autoresize) {
+        setSize(newsize);
+    }
 
     glm::vec2 pos = calcPos();
     switch (align) {
@@ -194,6 +210,13 @@ void Label::textSupplier(wstringsupplier supplier) {
     this->supplier = supplier;
 }
 
+void Label::setAutoResize(bool flag) {
+    this->autoresize = flag;
+}
+
+bool Label::isAutoResize() const {
+    return autoresize;
+}
 
 void Label::setMultiline(bool multiline) {
     if (multiline != this->multiline) {

src/graphics/ui/elements/Label.hpp

@@ -24,6 +24,8 @@ namespace gui {
 
     class Label : public UINode {
         LabelCache cache;
+
+        glm::vec2 calcSize();
     protected:
         std::wstring text;
         std::string fontName;
@@ -47,6 +49,9 @@ namespace gui {
 
         /// @brief Text line height multiplied by line interval
         int totalLineHeight = 1;
+
+        /// @brief Auto resize label to fit text
+        bool autoresize = false;
     public:
         Label(std::string text, std::string fontName="normal");
         Label(std::wstring text, std::string fontName="normal");
@@ -95,6 +100,9 @@ namespace gui {
 
         virtual void textSupplier(wstringsupplier supplier);
 
+        virtual void setAutoResize(bool flag);
+        virtual bool isAutoResize() const;
+
         virtual void setMultiline(bool multiline);
         virtual bool isMultiline() const;
 

src/graphics/ui/elements/UINode.cpp

@@ -129,6 +129,14 @@ bool UINode::isResizing() const {
     return resizing;
 }
 
+void UINode::setTooltip(const std::wstring& text) {
+    this->tooltip = text;
+}
+
+const std::wstring UINode::getTooltip() const {
+    return tooltip;
+}
+
 glm::vec2 UINode::calcPos() const {
     if (parent) {
         return pos + parent->calcPos() + parent->contentOffset();
@@ -316,7 +324,7 @@ void UINode::setGravity(Gravity gravity) {
 }
 
 void UINode::getIndices(
-    std::shared_ptr<UINode> node,
+    const std::shared_ptr<UINode> node,
     std::unordered_map<std::string, std::shared_ptr<UINode>>& map
 ) {
     const std::string& id = node->getId();
@@ -330,3 +338,19 @@ void UINode::getIndices(
         }
     }
 }
+std::shared_ptr<UINode> UINode::find(
+    const std::shared_ptr<UINode> node,
+    const std::string& id
+) {
+    if (node->getId() == id) {
+        return node;
+    }
+    if (auto container = std::dynamic_pointer_cast<Container>(node)) {
+        for (auto subnode : container->getNodes()) {
+            if (auto found = UINode::find(subnode, id)) {
+                return found;
+            }
+        }
+    }
+    return nullptr;
+}

src/graphics/ui/elements/UINode.hpp

@@ -109,6 +109,8 @@ namespace gui {
         ActionsSet actions;
         /// @brief 'ondoubleclick' callbacks
         ActionsSet doubleClickCallbacks;
+        /// @brief element tooltip text
+        std::wstring tooltip;
 
         UINode(glm::vec2 size);
     public:
@@ -197,6 +199,9 @@ namespace gui {
         virtual void setResizing(bool flag);
         virtual bool isResizing() const;
 
+        virtual void setTooltip(const std::wstring& text);
+        virtual const std::wstring getTooltip() const;
+
         virtual glm::vec4 calcColor() const;
 
         /// @brief Get inner content offset. Used for scroll
@@ -237,9 +242,14 @@ namespace gui {
 
         /// @brief collect all nodes having id
         static void getIndices(
-            std::shared_ptr<UINode> node,
+            const std::shared_ptr<UINode> node,
             std::unordered_map<std::string, std::shared_ptr<UINode>>& map
         );
+
+        static std::shared_ptr<UINode> find(
+            const std::shared_ptr<UINode> node,
+            const std::string& id
+        );
     };
 }
 

src/graphics/ui/gui_xml.cpp

@@ -143,6 +143,10 @@ static void _readUINode(UiXmlReader& reader, xml::xmlelement element, UINode& no
         ));
     }
 
+    if (element->has("tooltip")) {
+        node.setTooltip(util::str2wstr_utf8(element->attr("tooltip").getText()));
+    }
+
     if (auto onclick = create_action(reader, element, "onclick")) {
         node.listenAction(onclick);
     }
@@ -245,6 +249,9 @@ static std::shared_ptr<UINode> readLabel(UiXmlReader& reader, xml::xmlelement el
             reader.getFilename()
         ));
     }
+    if (element->has("autoresize")) {
+        label->setAutoResize(element->attr("autoresize").asBool());
+    }
     if (element->has("multiline")) {
         label->setMultiline(element->attr("multiline").asBool());
         if (!element->has("valign")) {

src/logic/scripting/lua/libgui.cpp

@@ -264,6 +264,9 @@ static int p_get_hover_color(UINode* node) {
 static int p_get_pressed_color(UINode* node) {
     return lua::pushcolor_arr(state->getLua(), node->getPressedColor());
 }
+static int p_get_tooltip(UINode* node) {
+    return state->pushstring(util::wstr2str_utf8(node->getTooltip()));
+}
 static int p_get_pos(UINode* node) {
     return lua::pushvec2_arr(state->getLua(), node->getPos());
 }
@@ -300,6 +303,7 @@ static int l_gui_getattr(lua_State* L) {
         {"color", p_get_color},
         {"hoverColor", p_get_hover_color},
         {"pressedColor", p_get_pressed_color},
+        {"tooltip", p_get_tooltip},
         {"pos", p_get_pos},
         {"wpos", p_get_wpos},
         {"size", p_get_size},
@@ -345,6 +349,9 @@ static void p_set_hover_color(UINode* node, int idx) {
 static void p_set_pressed_color(UINode* node, int idx) {
     node->setPressedColor(state->tocolor(idx));
 }
+static void p_set_tooltip(UINode* node, int idx) {
+    node->setTooltip(util::str2wstr_utf8(state->tostring(idx)));
+}
 static void p_set_pos(UINode* node, int idx) {
     node->setPos(state->tovec2(idx));
 }
@@ -464,6 +471,7 @@ static int l_gui_setattr(lua_State* L) {
         {"color", p_set_color},
         {"hoverColor", p_set_hover_color},
         {"pressedColor", p_set_pressed_color},
+        {"tooltip", p_set_tooltip},
         {"pos", p_set_pos},
         {"wpos", p_set_wpos},
         {"size", p_set_size},