Allow window to be resizable

3 files changed, 13 insertions, 4 deletions

diff --git a/editor.c b/editor.c
index 963a4e4..f7fc684 100644
--- a/editor.c
+++ b/editor.c
@@ -27,9 +27,7 @@ void init_editor(struct editor_state* editor)
 	editor->syntax = NULL;
 	editor->mode = EDITOR_MODE_NORMAL;
 
-	window_get_size(&editor->screen_rows, &editor->screen_cols);
-
-	editor->screen_rows -= 2;
+	editor_update_screen_size(editor);
 }
 
 void editor_set_status_message(struct editor_state* editor, const char* format, ...)
@@ -255,6 +253,12 @@ void editor_scroll(struct editor_state* editor)
 		editor->col_offset = editor->cursor_display_x - editor->screen_cols + 1;
 }
 
+void editor_update_screen_size(struct editor_state *editor)
+{
+	window_get_size(&editor->screen_rows, &editor->screen_cols);
+	editor->screen_rows -= 2;
+}
+
 void editor_draw_rows(struct editor_state* editor, struct append_buffer* buffer)
 {
 	int y;
diff --git a/editor.h b/editor.h
index a46c37f..aaed086 100644
--- a/editor.h
+++ b/editor.h
@@ -54,6 +54,7 @@ void editor_add_line_below(struct editor_state* editor);
 
 void editor_find(struct editor_state* editor);
 void editor_scroll(struct editor_state* editor);
+void editor_update_screen_size(struct editor_state *);
 void editor_draw_rows(struct editor_state* editor, struct append_buffer* buffer);
 void editor_draw_status_bar(struct editor_state* editor, struct append_buffer* buffer);
 void editor_draw_message_bar(struct editor_state* editor, struct append_buffer* buffer);
diff --git a/window.c b/window.c
index ea3f9f4..74e2e10 100644
--- a/window.c
+++ b/window.c
@@ -23,7 +23,7 @@ void window_init(const char *title, int rows, int cols)
 	int window_width = cols * font.width;
 	int window_height = rows * font.height;
 
-	window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, window_width, window_height, 0);
+	window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, window_width, window_height, SDL_WINDOW_RESIZABLE);
 	if (window == NULL)
 		fatal_error("Failed to create window: %s\n", SDL_GetError());
 
@@ -59,6 +59,10 @@ int window_handle_event(struct editor_state *editor)
 		}
 		editor_insert_char(editor, *e.text.text);
 		break;
+	case SDL_WINDOWEVENT:
+		if (e.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
+			editor_update_screen_size(editor);
+		break;
 	}
 	return 1;
 }