Added handler for ConfigureNotify event

1 files changed, 16 insertions, 6 deletions

diff --git a/text.c b/text.c
index f0bd074..956385b 100644
--- a/text.c
+++ b/text.c
@@ -13,9 +13,9 @@ void draw_text(cairo_t *, const char *);
 xcb_visualtype_t * find_visual(xcb_screen_t *);
 
 static const int MARGIN = 20;
-static const int WIDTH = 800;
-static const int HEIGHT = 1131;
 static const char * FONT = "Serif 34";
+static int width = 800;
+static int height = 600;
 
 
 int main(int argc, const char ** argv)
@@ -32,13 +32,13 @@ int main(int argc, const char ** argv)
 	xcb_screen_t * s = xcb_setup_roots_iterator(xcb_get_setup(c)).data;
 	xcb_window_t w = xcb_generate_id(c);
 	const uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
-	const uint32_t values[] = {s->white_pixel, XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS};
+	const uint32_t values[] = {s->white_pixel, XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_STRUCTURE_NOTIFY};
 	xcb_visualtype_t * visual = find_visual(s);
 	xcb_create_window(
-		c, XCB_COPY_FROM_PARENT, w, s->root, 0, 0, WIDTH, HEIGHT, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+		c, XCB_COPY_FROM_PARENT, w, s->root, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
 		s->root_visual, mask, values);
 	xcb_map_window(c, w);
-	cairo_surface_t * surface = cairo_xcb_surface_create(c, w, visual, WIDTH, HEIGHT);
+	cairo_surface_t * surface = cairo_xcb_surface_create(c, w, visual, width, height);
 	cairo_t * ctx = cairo_create(surface);
 	xcb_flush(c);
 	int done = 0;
@@ -63,6 +63,16 @@ int main(int argc, const char ** argv)
 			cairo_surface_flush(surface);
 			xcb_flush(c);
 			break;
+		case XCB_CONFIGURE_NOTIFY:
+			;
+			xcb_configure_notify_event_t * conf = (xcb_configure_notify_event_t *) e;
+			if (width != conf->width || height != conf->height)
+			{
+				cairo_xcb_surface_set_size(surface, conf->width, conf->height);
+				width = conf->width;
+				height = conf->height;
+			}
+			break;
 		}
 		free(e);
 	}
@@ -95,7 +105,7 @@ void draw_text(cairo_t * ctx, const char * text)
 	pango_font_description_free(desc);
 	pango_layout_set_text(layout, text, -1);
 	pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
-	pango_layout_set_width(layout, (WIDTH - 2 * MARGIN) * PANGO_SCALE);
+	pango_layout_set_width(layout, (width - 2 * MARGIN) * PANGO_SCALE);
 	pango_cairo_update_layout(ctx, layout);
 	pango_cairo_show_layout(ctx, layout);
 	g_object_unref(layout);