From 5b90057859cd38b284573460460ab27bd108aa0e Mon Sep 17 00:00:00 2001
From: Leo Tenenbaum <pommicket@gmail.com>
Date: Thu, 28 Jan 2021 15:44:16 -0500
Subject: finished warn on overwrite

---
 Untitled |  2 +-
 math.c   |  4 ++++
 menu.c   | 23 ++++++++++++++++++++++-
 ui.c     | 46 ++++++++++++++++++++++++++++++++++++----------
 4 files changed, 63 insertions(+), 12 deletions(-)

diff --git a/Untitled b/Untitled
index b375b10..f2a5887 100644
--- a/Untitled
+++ b/Untitled
@@ -1,2 +1,2 @@
-1	2	3	4
+a 1	2	3	4
 56	78	910	1112
diff --git a/math.c b/math.c
index 6497040..fe28ef1 100644
--- a/math.c
+++ b/math.c
@@ -195,6 +195,10 @@ static v2 v2_mul(v2 a, v2 b) {
 	return V2(a.x * b.x, a.y * b.y);
 }
 
+static v2 v2_clamp(v2 x, v2 a, v2 b) {
+	return V2(clampf(x.x, a.x, b.x), clampf(x.y, a.y, b.y));
+}
+
 static float v2_dot(v2 a, v2 b) {
 	return a.x * b.x + a.y * b.y;
 }
diff --git a/menu.c b/menu.c
index a307a62..68f941a 100644
--- a/menu.c
+++ b/menu.c
@@ -56,18 +56,39 @@ static void menu_update(Ted *ted, Menu menu) {
 	case MENU_NONE: break;
 	case MENU_SAVE_AS: {
 		if (*ted->warn_overwrite) {
+			switch (popup_update(ted)) {
+			case POPUP_NONE:
+				// no option selected
+				break;
+			case POPUP_YES:
+				// overwrite it!
+				if (ted->prev_active_buffer)
+					buffer_save_as(ted->prev_active_buffer, ted->warn_overwrite);
+				menu_close(ted, true);
+				break;
+			case POPUP_NO:
+				// back to the file selector
+				*ted->warn_overwrite = '\0';
+				ted->active_buffer = &ted->line_buffer;
+				break;
+			case POPUP_CANCEL:
+				// close "save as" menu
+				menu_close(ted, true);
+				break;
+			}
 		} else {
 			char *selected_file = file_selector_update(ted, &ted->file_selector);
 			if (selected_file) {
 				TextBuffer *buffer = ted->prev_active_buffer;
 				if (buffer) {
 					if (fs_path_type(selected_file) != FS_NON_EXISTENT) {
+						// file already exists! warn about overwriting it.
 						strbuf_cpy(ted->warn_overwrite, selected_file);
 						ted->active_buffer = NULL;
 					} else {
+						// create the new file.
 						buffer_save_as(buffer, selected_file);
 						menu_close(ted, true);
-						file_selector_free(&ted->file_selector);
 					}
 				}
 				free(selected_file);
diff --git a/ui.c b/ui.c
index 827f73c..7207a7d 100644
--- a/ui.c
+++ b/ui.c
@@ -479,6 +479,16 @@ static void button_render(Ted *ted, Rect button, char const *text, u32 color) {
 	text_render_anchored(ted->font, text, pos.x, pos.y, ANCHOR_MIDDLE);
 }
 
+// returns true if the button was clicked on.
+static bool button_update(Ted *ted, Rect button) {
+	for (u16 i = 0; i < ted->nmouse_clicks[SDL_BUTTON_LEFT]; ++i) {
+		if (rect_contains_point(button, ted->mouse_clicks[SDL_BUTTON_LEFT][i])) {
+			return true;
+		}
+	}
+	return false;
+}
+
 typedef enum {
 	POPUP_NONE,
 	POPUP_YES,
@@ -486,22 +496,45 @@ typedef enum {
 	POPUP_CANCEL
 } PopupOption;
 
+
+static void popup_get_rects(Ted const *ted, Rect *popup, Rect *button_yes, Rect *button_no, Rect *button_cancel) {
+	float window_width = ted->window_width, window_height = ted->window_height;
+	
+	*popup = rect_centered(V2(window_width * 0.5f, window_height * 0.5f), V2(300, 200));
+	float button_height = 30;
+	u16 nbuttons = 3;
+	float button_width = popup->size.x / nbuttons;
+	popup->size = v2_clamp(popup->size, v2_zero, V2(window_width, window_height));
+	*button_yes    = rect(V2(popup->pos.x, rect_y2(*popup) - button_height), V2(button_width, button_height));
+	*button_no     = rect_translate(*button_yes, V2(button_width, 0));
+	*button_cancel = rect_translate(*button_no, V2(button_width, 0));
+	
+}
+
 static PopupOption popup_update(Ted *ted) {
-	(void)ted;
+	Rect r, button_yes, button_no, button_cancel;
+	popup_get_rects(ted, &r, &button_yes, &button_no, &button_cancel);
+	if (button_update(ted, button_yes))
+		return POPUP_YES;
+	if (button_update(ted, button_no))
+		return POPUP_NO;
+	if (button_update(ted, button_cancel))
+		return POPUP_CANCEL;
 	return POPUP_NONE;
 }
 
 static void popup_render(Ted *ted, char const *title, char const *body) {
 	float window_width = ted->window_width;
-	float window_height = ted->window_height;
 	Font *font = ted->font;
 	Font *font_bold = ted->font_bold;
-	Rect r = rect_centered(V2(window_width * 0.5f, window_height * 0.5f), V2(300, 200));
+	Rect r, button_yes, button_no, button_cancel;
 	Settings const *settings = &ted->settings;
 	u32 const *colors = settings->colors;
 	float const char_height_bold = text_font_char_height(font_bold);
 	float const padding = settings->padding;
 
+	popup_get_rects(ted, &r, &button_yes, &button_no, &button_cancel);
+
 	glBegin(GL_QUADS);
 	gl_color_rgba(colors[COLOR_MENU_BG]);
 	rect_render(r);
@@ -538,13 +571,6 @@ static void popup_render(Ted *ted, char const *title, char const *body) {
 	};
 	text_render_with_state(font, &state, body, text_x1, y);
 
-	float button_height = 30;
-	u16 nbuttons = 3;
-	float button_width = r.size.x / nbuttons;
-	Rect button_yes    = rect(V2(r.pos.x, rect_y2(r) - button_height), V2(button_width, button_height));
-	Rect button_no     = rect_translate(button_yes, V2(button_width, 0));
-	Rect button_cancel = rect_translate(button_no, V2(button_width, 0));
-
 	button_render(ted, button_yes, "Yes", colors[COLOR_YES]);
 	button_render(ted, button_no, "No", colors[COLOR_NO]);
 	button_render(ted, button_cancel, "Cancel", colors[COLOR_CANCEL]);
-- 
cgit v1.2.3