draw the brush size with pressure applied (when the tablet is used), nice to see the actual size used.

3 files changed, 20 insertions, 0 deletions

diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index eb1aad75a88..1b8bf29d92a 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -131,6 +131,7 @@ void		*WM_paint_cursor_activate(struct wmWindowManager *wm,
 void		WM_paint_cursor_end(struct wmWindowManager *wm, void *handle);
 
 void		WM_cursor_warp		(struct wmWindow *win, int x, int y);
+float		WM_cursor_pressure	(const struct wmWindow *win);
 
 			/* event map */
 int			WM_userdef_event_map(int kmitype);
diff --git a/source/blender/windowmanager/intern/wm_event_system.c b/source/blender/windowmanager/intern/wm_event_system.c
index d81aa74e138..907a0a34f60 100644
--- a/source/blender/windowmanager/intern/wm_event_system.c
+++ b/source/blender/windowmanager/intern/wm_event_system.c
@@ -2655,6 +2655,10 @@ static void update_tablet_data(wmWindow *win, wmEvent *event)
 		event->custom = EVT_DATA_TABLET;
 		event->customdata = wmtab;
 		event->customdatafree = 1;
+		// printf("%s: using tablet %.5f\n", wmtab->Pressure, __func__);
+	}
+	else {
+		// printf("%s: not using tablet\n", __func__);
 	}
 }
 
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index e6a40187bfe..52024897f70 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -1318,6 +1318,21 @@ void WM_cursor_warp(wmWindow *win, int x, int y)
 	}
 }
 
+/**
+ * Get the cursor pressure, in most cases you'll want to use wmTabletData from the event
+ */
+float WM_cursor_pressure(const struct wmWindow *win)
+{
+	const GHOST_TabletData *td = GHOST_GetTabletData(win->ghostwin);
+	/* if there's tablet data from an active tablet device then add it */
+	if ((td != NULL) && td->Active != GHOST_kTabletModeNone) {
+		return td->Pressure;
+	}
+	else {
+		return -1.0f;
+	}
+}
+
 /* support for native pixel size */
 /* mac retina opens window in size X, but it has up to 2 x more pixels */
 int WM_window_pixels_x(wmWindow *win)