move input handling into renderer

1 files changed, 63 insertions, 0 deletions

diff --git a/renderer.c b/renderer.c
index 13ea671..663d469 100644
--- a/renderer.c
+++ b/renderer.c
@@ -17,6 +17,23 @@ static int buf_idx;
 
 static SDL_Window *window;
 
+static const char button_map[256] = {
+	[ SDL_BUTTON_LEFT & 0xff ] = MU_MOUSE_LEFT,
+	[ SDL_BUTTON_RIGHT & 0xff ] = MU_MOUSE_RIGHT,
+	[ SDL_BUTTON_MIDDLE & 0xff ] = MU_MOUSE_MIDDLE,
+};
+
+static const char key_map[256] = {
+	[ SDLK_LSHIFT & 0xff ] = MU_KEY_SHIFT,
+	[ SDLK_RSHIFT & 0xff ] = MU_KEY_SHIFT,
+	[ SDLK_LCTRL & 0xff ] = MU_KEY_CTRL,
+	[ SDLK_RCTRL & 0xff ] = MU_KEY_CTRL,
+	[ SDLK_LALT & 0xff ] = MU_KEY_ALT,
+	[ SDLK_RALT & 0xff ] = MU_KEY_ALT,
+	[ SDLK_RETURN & 0xff ] = MU_KEY_RETURN,
+	[ SDLK_BACKSPACE & 0xff ] = MU_KEY_BACKSPACE,
+};
+
 
 void r_init(void) {
   /* init SDL window */
@@ -49,6 +66,52 @@ void r_init(void) {
 }
 
 
+static void
+handle_event(SDL_Event e, mu_Context *ctx) {
+	switch (e.type) {
+		case SDL_QUIT: {
+			exit(EXIT_SUCCESS);
+		}
+		break; case SDL_MOUSEMOTION: {
+			mu_input_mousemove(ctx, e.motion.x, e.motion.y);
+		}
+		break; case SDL_MOUSEWHEEL: {
+			mu_input_scroll(ctx, 0, e.wheel.y * -30);
+		}
+		break; case SDL_TEXTINPUT: {
+			mu_input_text(ctx, e.text.text);
+		}
+		break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: {
+			int b = button_map[e.button.button & 0xff];
+			if (b && e.type == SDL_MOUSEBUTTONDOWN) {
+				mu_input_mousedown(ctx, e.button.x, e.button.y, b);
+			}
+			if (b && e.type == SDL_MOUSEBUTTONUP) {
+				mu_input_mouseup(ctx, e.button.x, e.button.y, b);
+			}
+		}
+		break; case SDL_KEYDOWN: case SDL_KEYUP: {
+			int c = key_map[e.key.keysym.sym & 0xff];
+			if (c && e.type == SDL_KEYDOWN) {
+				mu_input_keydown(ctx, c);
+			}
+			if (c && e.type == SDL_KEYUP) {
+				mu_input_keyup(ctx, c);
+			}
+		}
+	}
+}
+
+
+void
+r_handle_input(mu_Context *ctx) {
+	SDL_Event e;
+	while (SDL_PollEvent(&e)) {
+		handle_event(e, ctx);
+	}
+}
+
+
 static void flush(void) {
   if (buf_idx == 0) { return; }