feat: simple overlay and window modes with intention setting

src/main.c

@@ -1,34 +1,78 @@
 #include <stdio.h>
+
+#define RAYGUI_IMPLEMENTATION
 #include <raygui.h>
 #include <raylib.h>
+#include "window_state.h"
 
 #define WINDOW_HEIGHT 700
 #define WINDOW_WIDTH 500
 #define OVERLAY_HEIGHT 300
 #define OVERLAY_WIDTH 700
 
+bool edit_mode = true;
+
+void switch_mode(Mode mode) {
+  set_mode(mode);
+  
+  switch (mode) {
+  case WINDOW:
+    SetWindowSize(WINDOW_WIDTH, WINDOW_HEIGHT);
+    break;
+  case OVERLAY:
+    SetWindowSize(OVERLAY_WIDTH, OVERLAY_HEIGHT);
+    break;
+  default:
+    break;
+  }
+}
+
 void render_window() {
   ClearBackground(RAYWHITE);
   DrawFPS(WINDOW_WIDTH - 50, 10);
 
-  // draw a button for toggle mode
+  const Rectangle text_rect = {(WINDOW_WIDTH / 2) - 200, WINDOW_HEIGHT / 2, 400, 50};
+  if (GuiTextBox(text_rect, get_intention(), get_intention_size(), &edit_mode)) {
+    switch_mode(OVERLAY);
+  }
+
+  char label[2048];
+  sprintf(label, "%d / %d characters | Hit enter to set", (int) strlen(get_intention()), (int) get_intention_size()); 
+  GuiLabel((Rectangle){ WINDOW_WIDTH / 2 - 100, (WINDOW_HEIGHT / 2) + 50, 300, 50}, label);
+  
 }
 
 void render_overlay() {
   ClearBackground(BLANK);
   DrawFPS(OVERLAY_WIDTH - 50, 10);
 
-  // draw a button to toggle mode
+  const Rectangle button_rect = {OVERLAY_WIDTH - 100, 10, 100, 25};
+  int active = 0;
+
+  if (GuiToggleSlider(button_rect, "Toggle mode", &active)) {
+    switch_mode(WINDOW);
+  }
+
+  GuiSetStyle(DEFAULT, TEXT_SIZE, 100);
+  GuiSetStyle(LABEL, TEXT_ALIGNMENT, TEXT_ALIGN_CENTER);
+  GuiLabel((Rectangle){0, (OVERLAY_HEIGHT / 2), OVERLAY_WIDTH, 50}, get_intention());
 }
 
 int main(int argc, char *argv[]) {
+  init_window_state();
+  
   printf("Welcome to Flowy.adhd\n");
 
   InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Flowy.adhd");
-
+ 
   while (!WindowShouldClose()) {
     BeginDrawing();
-    render_window();
+
+    GuiSetStyle(DEFAULT, TEXT_SIZE, 15);
+
+    if (get_mode() == WINDOW) render_window();
+    else render_overlay();
+    
     EndDrawing();
   }
 

src/window_state.c

@@ -0,0 +1,54 @@
+#include "window_state.h"
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+struct state *s = NULL;
+
+#define INTENTION_MAX_SIZE 2048
+
+struct state {
+  Mode mode;
+  char intention[INTENTION_MAX_SIZE];
+};
+
+void init_window_state() {
+  s = malloc(sizeof(struct state));
+  s->mode = WINDOW;
+
+  memset(s->intention, 0, sizeof(s->intention));
+}
+
+void cleanup_window_state() {
+  if (!s) {
+    return;
+  }
+  free(s);
+  s = NULL;
+}
+
+void set_intention(char *intention) {
+  assert(s);
+  
+  strncpy(s->intention, intention, sizeof(s->intention));
+  s->intention[sizeof(s->intention) - 1] = '\0';
+}
+
+char *get_intention() {
+  assert(s);
+  return s->intention;
+}
+
+size_t get_intention_size() {
+  assert(s);
+  return sizeof(s->intention);
+}
+
+Mode get_mode() {
+  assert(s);
+  return s->mode;
+}
+
+void set_mode(Mode new_mode) {
+  s->mode = new_mode;
+}