uitextbox update

include/object/entity.hpp

@@ -33,7 +33,7 @@ namespace Game::Object {
             virtual void update(float deltaTime) = 0;
             virtual void onWindowResized(int newWidth, int newHeight) {} // Called when the window is resized, with the new width and height in pixels
             virtual void destroyed() {}; // Pre-destruction call
-            void render(Game::Renderer::Renderer* renderer, Game::Renderer::RendererConfig config);
+            virtual void render(Game::Renderer::Renderer* renderer, Game::Renderer::RendererConfig config);
 
             // Collision calls
             // Called once when a collision begins

include/object/ui/uitextbox.hpp

@@ -4,21 +4,45 @@
 #include <renderer/font.hpp>
 #include <renderer/texture.hpp>
 #include <utility>
+#include <string>
 #include <game/input.hpp>
+#include <SDL3/SDL.h>
 
 namespace Game::Object {
+
+    struct UITextboxConfig {
+        SDL_Color bgColor             = {20,  20,  20,  210};
+        SDL_Color borderColor         = {110, 110, 110, 255};
+        SDL_Color focusedBorderColor  = {200, 175, 70,  255};
+        SDL_Color textColor           = {255, 255, 255, 255};
+        SDL_Color focusedTextColor    = {255, 240, 180, 255};
+        SDL_Color placeholderColor    = {120, 120, 120, 200};
+        float borderThickness         = 2.f;
+        float paddingX                = 8.f;
+        float paddingY                = 4.f;
+        float minWidth                = 160.f;
+        float minHeight               = 32.f;
+        int   maxLength               = 0;     // 0 = unlimited
+        std::string placeholder       = "";
+        float cursorBlinkRate         = 0.53f; // seconds per blink phase
+    };
+
     class UITextBox : public Entity {
         public:
-            UITextBox(const std::string& name, std::shared_ptr<Renderer::Font> font, const Transform& transform, float x = 0.f, float y = 0.f);
+            UITextBox(const std::string& name, std::shared_ptr<Renderer::Font> font,
+                      const Transform& transform,
+                      float x = 0.f, float y = 0.f,
+                      UITextboxConfig config = {});
             ~UITextBox() override = default;
 
-            void start() override;
+            void start()  override;
             void update(float deltaTime) override;
+            void render(Game::Renderer::Renderer* renderer, Game::Renderer::RendererConfig config) override;
 
-            void setText(const std::string& text);
+            void        setText(const std::string& text);
-            std::string getText() const;
+            std::string getText()  const;
             std::string getValue() const;
-            bool isFocused() const;
+            bool        isFocused() const;
 
             void setPosition(float x, float y) { mX = x; mY = y; }
             std::pair<float, float> getPosition() const { return {mX, mY}; }
@@ -33,5 +57,9 @@ namespace Game::Object {
             float mBoxWidth = 0.f;
             float mBoxHeight = 0.f;
             bool mNeedsTextRefresh = true;
+            UITextboxConfig mConfig;
+
+            float mCursorTimer = 0.f;
+            bool mCursorVisible = true;
     };
 }

src/main.cpp

@@ -8,6 +8,7 @@
 #include <renderer/renderer.hpp>
 #include <renderer/texture.hpp>
 #include <renderer/font.hpp>
+#include <object/ui/uitextbox.hpp>
 #include <game/agame/sampletextbox.hpp>
 #include <object/components/boxcollider.hpp>
 
@@ -27,6 +28,9 @@ int main() {
     player->addComponent<Object::Components::BoxCollider>();
     //State::GameState::getInstance().addEntity(std::make_unique<AGame::Player>("Player2", std::make_shared<Game::Renderer::Font>("../resources/roboto.ttf", window.getRenderer()->getSDLRenderer(), 128, "Roboto"), t1));
 
+    // Sample textbox
+    State::GameState::getInstance().addEntity(std::make_unique<AGame::SampleTextBox>("Sample Text Box", std::make_shared<Game::Renderer::Font>("../resources/roboto.ttf", window.getRenderer()->getSDLRenderer(), 48, "Roboto"), Object::DEFAULT_TRANSFORM, 640.f, 360.f));
+
     window.run();
     
     return 0;

src/object/ui/uitextbox.cpp

@@ -1,19 +1,21 @@
 #include <object/ui/uitextbox.hpp>
+#include <renderer/renderer.hpp>
 
 namespace Game::Object {
-    UITextBox::UITextBox(const std::string& name, std::shared_ptr<Renderer::Font> font, const Transform& transform, float x, float y)
+
-        : Entity(name, font, transform), mX(x), mY(y) { }
+    UITextBox::UITextBox(const std::string& name, std::shared_ptr<Renderer::Font> font,
+                         const Transform& transform, float x, float y, UITextboxConfig config)
+        : Entity(name, font, transform), mX(x), mY(y), mConfig(config) { }
 
     void UITextBox::start() {
-        // Center the text box on the position
+        mTransform.x -= mTex->getWidth()  * mTransform.adjustedScaleX() / 2.f;
-        mTransform.x -= mTex->getWidth() * mTransform.adjustedScaleX() / 2.f;
         mTransform.y -= mTex->getHeight() * mTransform.adjustedScaleY() / 2.f;
 
-        // Keep a stable interaction area even when current text is empty.
+        mBoxWidth  = static_cast<float>(mTex->getWidth())  * mTransform.adjustedScaleX();
-        mBoxWidth = static_cast<float>(mTex->getWidth()) * mTransform.adjustedScaleX();
         mBoxHeight = static_cast<float>(mTex->getHeight()) * mTransform.adjustedScaleY();
-        if (mBoxWidth <= 0.f) mBoxWidth = 180.f;
+
-        if (mBoxHeight <= 0.f) mBoxHeight = 36.f;
+        if (mBoxWidth  < mConfig.minWidth)  mBoxWidth  = mConfig.minWidth;
+        if (mBoxHeight < mConfig.minHeight) mBoxHeight = mConfig.minHeight;
 
         refreshVisualText();
     }
@@ -26,34 +28,39 @@ namespace Game::Object {
             mNeedsTextRefresh = true;
         }
 
-        if (!mIsFocused) {
+        if (mIsFocused) {
-            if (mNeedsTextRefresh) {
+            // Cursor blink
-                refreshVisualText();
+            mCursorTimer += deltaTime;
-            }
+            if (mCursorTimer >= mConfig.cursorBlinkRate) {
-            return;
+                mCursorTimer   = 0.f;
-        }
+                mCursorVisible = !mCursorVisible;
-
-        if (Input::isKeyJustPressed(SDL_SCANCODE_BACKSPACE) && !mText.empty()) {
-            mText.pop_back();
-            mNeedsTextRefresh = true;
-        }
-
-        if (Input::isKeyJustPressed(SDL_SCANCODE_RETURN) || Input::isKeyJustPressed(SDL_SCANCODE_KP_ENTER)) {
-            mIsFocused = false;
-            mNeedsTextRefresh = true;
-        }
-
-        for (int key = 0; key < SDL_SCANCODE_COUNT; ++key) {
-            SDL_Scancode scancode = static_cast<SDL_Scancode>(key);
-            if (!Input::isKeyJustPressed(scancode)) {
-                continue;
-            }
-
-            SDL_Keycode keycode = SDL_GetKeyFromScancode(scancode, SDL_GetModState(), true);
-            if (keycode >= 32 && keycode <= 126) {
-                mText.push_back(static_cast<char>(keycode));
                 mNeedsTextRefresh = true;
             }
+
+            if (Input::isKeyJustPressed(SDL_SCANCODE_BACKSPACE) && !mText.empty()) {
+                mText.pop_back();
+                mNeedsTextRefresh = true;
+            }
+
+            if (Input::isKeyJustPressed(SDL_SCANCODE_RETURN) || Input::isKeyJustPressed(SDL_SCANCODE_KP_ENTER)) {
+                mIsFocused    = false;
+                mCursorTimer  = 0.f;
+                mCursorVisible = true;
+                mNeedsTextRefresh = true;
+            }
+
+            for (int key = 0; key < SDL_SCANCODE_COUNT; ++key) {
+                SDL_Scancode scancode = static_cast<SDL_Scancode>(key);
+                if (!Input::isKeyJustPressed(scancode)) continue;
+
+                SDL_Keycode keycode = SDL_GetKeyFromScancode(scancode, SDL_GetModState(), true);
+                if (keycode >= 32 && keycode <= 126) {
+                    if (mConfig.maxLength == 0 || static_cast<int>(mText.size()) < mConfig.maxLength) {
+                        mText.push_back(static_cast<char>(keycode));
+                        mNeedsTextRefresh = true;
+                    }
+                }
+            }
         }
 
         if (mNeedsTextRefresh) {
@@ -61,41 +68,76 @@ namespace Game::Object {
         }
     }
 
+    void UITextBox::render(Game::Renderer::Renderer* renderer, Game::Renderer::RendererConfig config) {
+        if (!mIsVisible) return;
+
+        SDL_Renderer* r = renderer->getSDLRenderer();
+
+        const float bx = mTransform.x - mConfig.paddingX - config.camX + config.screenW / 2.f;
+        const float by = mTransform.y - mConfig.paddingY - config.camY + config.screenH / 2.f;
+        const float bw = mBoxWidth + 2.f * mConfig.paddingX;
+        const float bh = mBoxHeight + 2.f * mConfig.paddingY;
+        const float t = mConfig.borderThickness;
+
+        // Background
+        SDL_SetRenderDrawBlendMode(r, SDL_BLENDMODE_BLEND);
+        const SDL_Color& bg = mConfig.bgColor;
+        SDL_SetRenderDrawColor(r, bg.r, bg.g, bg.b, bg.a);
+        const SDL_FRect bgRect = {bx, by, bw, bh};
+        SDL_RenderFillRect(r, &bgRect);
+
+        // Border (4 filled rects for configurable thickness)
+        const SDL_Color& bc = mIsFocused ? mConfig.focusedBorderColor : mConfig.borderColor;
+        SDL_SetRenderDrawColor(r, bc.r, bc.g, bc.b, bc.a);
+        const SDL_FRect borders[4] = {
+            {bx,          by,          bw, t },  // top
+            {bx,          by + bh - t, bw, t },  // bottom
+            {bx,          by,          t,  bh},  // left
+            {bx + bw - t, by,          t,  bh},  // right
+        };
+        SDL_RenderFillRects(r, borders, 4);
+
+        // Text (or placeholder) via base render
+        Entity::render(renderer, config);
+    }
+
     void UITextBox::setText(const std::string& text) {
         mText = text;
         mNeedsTextRefresh = true;
         refreshVisualText();
     }
 
-    std::string UITextBox::getText() const {
+    std::string UITextBox::getText() const { return mText; }
-        return mText;
+    std::string UITextBox::getValue() const { return mText; }
-    }
+    bool UITextBox::isFocused() const { return mIsFocused; }
-
-    std::string UITextBox::getValue() const {
-        return mText;
-    }
-
-    bool UITextBox::isFocused() const {
-        return mIsFocused;
-    }
 
     bool UITextBox::isMouseInsideBox() const {
         const float mouseX = Input::getMouseX();
         const float mouseY = Input::getMouseY();
 
-        const float left = mTransform.x;
+        const float left = mTransform.x - mConfig.paddingX;
-        const float right = mTransform.x + mBoxWidth;
+        const float right = left + mBoxWidth + 2.f * mConfig.paddingX;
-        const float top = mTransform.y;
+        const float top = mTransform.y - mConfig.paddingY;
-        const float bottom = mTransform.y + mBoxHeight;
+        const float bottom = top  + mBoxHeight + 2.f * mConfig.paddingY;
 
         return mouseX >= left && mouseX <= right && mouseY >= top && mouseY <= bottom;
     }
 
     void UITextBox::refreshVisualText() {
-        SDL_Color color = mIsFocused ? SDL_Color{255, 240, 180, 255} : SDL_Color{255, 255, 255, 255};
+        const bool showPlaceholder = mText.empty() && !mIsFocused && !mConfig.placeholder.empty();
-        std::string rendered = mText.empty() ? " " : mText;
+
-        if (mIsFocused) {
+        SDL_Color color;
-            rendered += "_";
+        std::string rendered;
+
+        if (showPlaceholder) {
+            color = mConfig.placeholderColor;
+            rendered = mConfig.placeholder;
+        } else {
+            color = mIsFocused ? mConfig.focusedTextColor : mConfig.textColor;
+            rendered = mText.empty() ? " " : mText;
+            if (mIsFocused && mCursorVisible) {
+                rendered += "_";
+            }
         }
 
         std::dynamic_pointer_cast<Renderer::Font>(mTex)->build(color, rendered);