function for debugging internal textures

this would have been nice for checking the textures of sf::Fonts

src/game/boe.graphics.cpp

@@ -1748,4 +1748,15 @@ void redraw_partial_terrain(rectangle redraw_rect) {
 	
 	rect_draw_some_item(terrain_screen_gworld().getTexture(),from_rect,mainPtr(),redraw_rect);
 	
+}
+
+void debug_show_texture(const sf::Texture& texture, float seconds, std::string label) {
+	sf::RenderWindow debug_window;
+	debug_window.create(sf::VideoMode(texture.getSize().x, texture.getSize().y, 32), label);
+	debug_window.setVisible(true);
+	makeFrontWindow(debug_window);
+	rect_draw_some_item(texture, rectangle(texture), debug_window, rectangle(texture));
+	debug_window.display();
+	sf::sleep(sf::seconds(seconds));
+	debug_window.setVisible(false);
 }

src/game/boe.graphics.hpp

@@ -63,8 +63,8 @@ void draw_startup_stats();
 void draw_trim(short q,short r,short which_trim,ter_num_t ground_ter);
 sf::FloatRect compute_viewport(const sf::RenderWindow&, int mode, float ui_scale, float width, float height);
 
-
 void draw_startup_anim(bool advance);
 
+void debug_show_texture(const sf::Texture& texture, float seconds = 2, std::string label = "");
 
 #endif

src/gfx/gfxsheets.cpp

@@ -60,6 +60,8 @@ size_t cCustomGraphics::count(bool party) {
 	}
 }
 
+extern void debug_show_texture(const sf::Texture& texture, float seconds = 2, std::string label = "");
+
 void cCustomGraphics::copy_graphic(pic_num_t dest, pic_num_t src, size_t numSlots) {
 	if(numSlots < 1) return;
 	// If the party doesn't have an export sheet, create one.