From f63ea0a321d1429bb2f60659d9a3bab7fc2a5f2d Mon Sep 17 00:00:00 2001
From: marouault <martin.rouault@etu.uca.fr>
Date: Mon, 24 Jan 2022 09:19:27 +0100
Subject: [PATCH] Added functions to textLabel

---
 Pontu/include/engine/TextLabel.h |  11 ++-
 Pontu/src/engine/TextLabel.c     |  48 +++++++++++++
 Pontu/test/testTextLabel.c       | 118 +++++++++++++++++++++++++++++++
 3 files changed, 176 insertions(+), 1 deletion(-)
 create mode 100644 Pontu/src/engine/TextLabel.c
 create mode 100644 Pontu/test/testTextLabel.c

diff --git a/Pontu/include/engine/TextLabel.h b/Pontu/include/engine/TextLabel.h
index 56f63ab..3f88b7a 100644
--- a/Pontu/include/engine/TextLabel.h
+++ b/Pontu/include/engine/TextLabel.h
@@ -2,11 +2,20 @@
 #define TEXT_LABEL_INCLUDED
 
 #include <SDL2/SDL.h>
+#include <SDL2/SDL_ttf.h>
+#include "engine/FontLoader.h"
 
 typedef struct
 {
 	char* text;
 	SDL_Rect textZone;
+	SDL_Color color;
+	SDL_Texture* texture;
 }TextLabel;
 
-#endif
+TextLabel createTextLabel(const char text[], const SDL_Rect* rect, const SDL_Color* color);
+void freeTextLabel(TextLabel* label);
+
+void drawTextLabel(SDL_Renderer* renderer, TextLabel* label, TTF_Font* fontHandler);
+
+#endif //TEXT_LABEL_INCLUDED
diff --git a/Pontu/src/engine/TextLabel.c b/Pontu/src/engine/TextLabel.c
new file mode 100644
index 0000000..c65abc8
--- /dev/null
+++ b/Pontu/src/engine/TextLabel.c
@@ -0,0 +1,48 @@
+#include "engine/TextLabel.h"
+
+
+
+TextLabel createTextLabel(const char text[], const SDL_Rect* rect, const SDL_Color* color) {
+    TextLabel label = {
+        .textZone = *rect,
+        .color = *color,
+        .texture = NULL
+    };
+
+    label.text = (char*) malloc(sizeof(char)*strlen(text));
+    strcpy(label.text, text);
+
+    return label;
+}
+
+void freeTextLabel(TextLabel* label) {
+    free(label->text);
+    label->text = NULL;
+
+    if (label->texture != NULL) {
+        SDL_DestroyTexture(label->texture);
+    }
+}
+
+void drawTextLabel(SDL_Renderer* renderer, TextLabel* label, TTF_Font* font) {
+    if (label->texture == NULL) {
+        SDL_Surface* surface = TTF_RenderText_Solid(font, label->text, label->color);
+
+        if(surface == NULL)
+        {
+            fprintf(stderr, "WARNING: Can't write on TextLabel\n");
+            return;
+        }
+        label->texture = SDL_CreateTextureFromSurface(renderer, surface);
+        if(label->texture == NULL)
+        {
+            fprintf(stderr, "WARNING: Can't create texture from surface: %s\n", SDL_GetError());
+            return;
+        }
+
+        SDL_FreeSurface(surface);
+    }
+    
+    SDL_RenderCopy(renderer, label->texture, NULL, &label->textZone);
+}
+
diff --git a/Pontu/test/testTextLabel.c b/Pontu/test/testTextLabel.c
new file mode 100644
index 0000000..707ab8f
--- /dev/null
+++ b/Pontu/test/testTextLabel.c
@@ -0,0 +1,118 @@
+
+
+#include "engine/TextLabel.h"
+#include "engine/FontLoader.h"
+
+
+void testTextLabel() {
+    SDL_Window *window = NULL;
+    SDL_Renderer *renderer = NULL;
+    SDL_Texture* picture;
+    int statut = EXIT_FAILURE;
+    char* path = "rsrc/img/Lenna.png";
+    int i=0;
+
+    if(0 != SDL_Init(SDL_INIT_VIDEO))
+    {
+        fprintf(stderr, "Erreur SDL_INIT: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //fenetre
+    window = SDL_CreateWindow("Fenêtre", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640,480, SDL_WINDOW_SHOWN);
+    if(window == NULL)
+    {
+        fprintf(stderr, "Erreur SDL_CreateWindow: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //rendu
+    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    if(renderer == NULL)
+    {
+        fprintf(stderr, "Erreur SDL_CreateRenderer: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //Fonts
+    if(TTF_Init() == -1)
+    {
+	fprintf(stderr, "Erreur: TTF_Init: %s\n", TTF_GetError());
+	goto Quit;
+    }
+
+    if(0 != SDL_SetRenderDrawColor(renderer, 0,0,0,0))  //choisi la couleur avec laquelle travailler
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    if(0 != SDL_RenderClear(renderer))  //efface le rendu en le repeignant avec la couleur choisi
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    if(0 != SDL_SetRenderDrawColor(renderer, 255,255,255,255))  //choisi la couleur avec laquelle travailler
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+
+    SDL_bool quit = SDL_FALSE;
+    SDL_Event event;
+
+    
+    picture = createTextureFromPath(renderer, path);
+    FontHandler fontHandler = loadFonts();
+
+    // TextLabel
+    SDL_Rect size = {.x=10, .y=10, .w=90, .h=20};
+
+    SDL_Color color = {
+        0,0,0,0
+    };
+    
+    TextLabel textLabel = createTextLabel("Salut", &size, &color);
+    
+    
+			    
+    SDL_RenderPresent(renderer);
+    while(!quit)
+    {
+        while(SDL_PollEvent(&event))
+        {
+            switch(event.type)
+            {
+            case SDL_QUIT:
+                quit = SDL_TRUE;
+                break;
+            case SDL_MOUSEBUTTONUP:
+                break;
+            }
+        }
+        SDL_RenderClear(renderer);
+
+	    //SDL_RenderCopy(renderer, picture, NULL, NULL);
+
+        drawTextLabel(renderer, &textLabel, fontHandler.fonts[FONT_retro]);
+
+        SDL_RenderPresent(renderer);
+            SDL_Delay(500);
+        ++i;
+
+            SDL_Delay(20);
+    }
+
+Quit:
+    freeFonts(fontHandler);
+    freeTextLabel(&textLabel);
+    if(renderer != NULL)
+        SDL_DestroyRenderer(renderer);
+    if(window != NULL)
+        SDL_DestroyWindow(window);
+    TTF_Quit();
+    SDL_Quit();
+}
+