Improve GuiText handling

CMakeLists.txt

@@ -38,4 +38,4 @@ add_library(${PROJECT_NAME}
         source/gui/input/ControllerManager.cpp
         source/gui/system/SDLSystem.cpp
         source/gui/video/SDL_FontCache.cpp
-        )
+        include/gui-sdl/gui/GuiFont.h source/gui/GuiFont.cpp)

include/gui-sdl/gui/GuiFont.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <cstdint>
+#include <SDL2/SDL_rwops.h>
+#include <map>
+#include <gui/video/SDL_FontCache.h>
+#include <gui/video/Renderer.h>
+
+class GuiFont {
+public:
+    GuiFont(const uint8_t *buffer, size_t buffer_size, Renderer *renderer);
+    ~GuiFont();
+
+    FC_Font *getFont(int32_t size);
+
+
+private:
+    std::map<int32_t, FC_Font *> font_cache;
+    std::map<int32_t, TTF_Font *> ttf_font_cache;
+    SDL_RWops *rw;
+    Renderer *renderer;
+};

include/gui-sdl/gui/GuiText.h

@@ -20,17 +20,31 @@
 #include <gui/GuiTextureData.h>
 #include <gui/video/SDL_FontCache.h>
 #include <gui/GuiImage.h>
+#include <gui/GuiFont.h>
 #include <mutex>
 #include <SDL2/SDL_ttf.h>
 
 //!Display, manage, and manipulate text in the GUI
 class GuiText : public GuiElement {
 public:
+    //!\param t Text
+    explicit GuiText(const std::string &t);
+
+    //!\param t Text
+    //!\param s Font size
+    GuiText(const std::string &t, int32_t s);
 
     //!\param t Text
     //!\param s Font size
     //!\param c Font color
-    GuiText(const std::string &t, SDL_Color c, FC_Font *font);
+    GuiText(const std::string &t, int32_t s, SDL_Color c);
+
+    //!\param t Text
+    //!\param s Font size
+    //!\param c Font color
+    //!\param font Font
+    GuiText(const std::string &t, int32_t s, SDL_Color c, GuiFont *font);
+
     ~GuiText() override;
 
     void draw(Renderer *pVideo) override;
@@ -39,9 +53,15 @@ public:
 
     void setMaxWidth(float width);
 
+    static void setPresetFont(GuiFont *f);
+
+    static void setPresets(int32_t sz, const SDL_Color & c);
+
+    void setFontSize(int32_t size);
+
 protected:
     GuiImage texture;
-    GuiTextureData* textureData = nullptr;
+    GuiTextureData *textureData = nullptr;
 
     std::string text;
     SDL_Color color;
@@ -53,4 +73,10 @@ protected:
     void updateSize();
 
     void updateTexture(Renderer *renderer);
+
+    GuiFont *gFont = nullptr;
+
+    static GuiFont *presetFont;
+    static SDL_Color presetColor;
+    static int32_t presetSize;
 };

source/gui/GuiFont.cpp

@@ -0,0 +1,46 @@
+#include <gui/GuiFont.h>
+
+GuiFont::GuiFont(const uint8_t *buffer, size_t buffer_size, Renderer *renderer) {
+    this->rw = SDL_RWFromMem((void *) buffer, buffer_size);
+    this->renderer = renderer;
+}
+
+GuiFont::~GuiFont() {
+    for (auto const&[key, val] : font_cache) {
+        FC_FreeFont(val);
+    }
+    for (auto const&[key, val] : ttf_font_cache) {
+        TTF_CloseFont(val);
+    }
+    SDL_RWclose(rw);
+}
+
+FC_Font *GuiFont::getFont(int32_t size) {
+    if (font_cache.count(size) > 0) {
+        return font_cache[size];
+    }
+
+    TTF_Font *font = TTF_OpenFontRW(rw, 0, size);
+    if (!font) {
+        return nullptr;
+    }
+
+    FC_Font *fc_font = FC_CreateFont();
+    if (!fc_font) {
+        TTF_CloseFont(font);
+        font = nullptr;
+        return nullptr;
+    }
+
+    auto res = FC_LoadFontFromTTF(fc_font, renderer->getRenderer(), font, {255, 255, 255, 255});
+    if (!res) {
+        TTF_CloseFont(font);
+        font = nullptr;
+        return nullptr;
+    }
+
+    font_cache[size] = fc_font;
+    ttf_font_cache[size] = font;
+
+    return fc_font;
+}

source/gui/GuiText.cpp

@@ -17,36 +17,41 @@
 #include <cstdarg>
 #include <SDL2/SDL_surface.h>
 #include <gui/GuiText.h>
-#include <gui/system/libgui_log.h>
 
-/**
- * Constructor for the GuiText class.
- */
+GuiFont *GuiText::presetFont = nullptr;
+int32_t GuiText::presetSize = 28;
+SDL_Color GuiText::presetColor = (SDL_Color) {
+        255, 255, 255, 255
+};
 
-GuiText::GuiText(const std::string& text, SDL_Color c, FC_Font* gFont) {
-   this->text = text;
-   this->color = c;
-   this->fc_font = gFont;
-   this->doUpdateTexture = true;
-   this->texture.setParent(this);
+GuiText::GuiText(const std::string &t)
+        : GuiText(t, presetSize) {
+}
+
+GuiText::GuiText(const std::string &t, int32_t s)
+        : GuiText(t, s, presetColor) {
+}
+
+GuiText::GuiText(const std::string &t, int32_t s, SDL_Color c)
+        : GuiText(t, s, c, presetFont) {
+}
+
+GuiText::GuiText(const std::string &text, int32_t size, SDL_Color c, GuiFont *gFont) :
+        text(text),
+        color(c) {
+    this->gFont = gFont;
+    this->fc_font = gFont->getFont(size);
+    this->doUpdateTexture = true;
+    this->texture.setParent(this);
 }
 
 GuiText::~GuiText() {
     delete textureData;
 }
 
-void GuiText::draw(Renderer *renderer) {
-    if (!this->isVisible()) {
-        return;
-    }
-
-    updateTexture(renderer);
-
-    texture.draw(renderer);
-}
-
-void GuiText::process() {
-    GuiElement::process();
+void GuiText::setFontSize(int32_t size) {
+    this->fc_font = this->gFont->getFont(size);
+    this->doUpdateTexture = true;
 }
 
 void GuiText::setMaxWidth(float width) {
@@ -85,7 +90,7 @@ void GuiText::updateTexture(Renderer *renderer) {
             SDL_RenderClear(renderer->getRenderer());
 
             // Draw text to texture
-            FC_DrawColumn(fc_font, renderer->getRenderer(), 0, 0, maxWidth, text.c_str());
+            FC_DrawColumnColor(fc_font, renderer->getRenderer(), 0, 0, maxWidth, color, text.c_str());
 
             // Restore render target
             SDL_SetRenderTarget(renderer->getRenderer(), nullptr);
@@ -95,3 +100,26 @@ void GuiText::updateTexture(Renderer *renderer) {
         doUpdateTexture = false;
     }
 }
+
+void GuiText::draw(Renderer *renderer) {
+    if (!this->isVisible()) {
+        return;
+    }
+
+    updateTexture(renderer);
+
+    texture.draw(renderer);
+}
+
+void GuiText::process() {
+    GuiElement::process();
+}
+
+void GuiText::setPresets(int32_t sz, const SDL_Color &c) {
+    GuiText::presetSize = sz;
+    GuiText::presetColor = c;
+}
+
+void GuiText::setPresetFont(GuiFont *f) {
+    GuiText::presetFont = f;
+}