Two new lcd/multi screen api convinience functions: draw_viewport(), fill_viewport().

They work as the drawrect/fillrect pendants but work on a viewport basis; pass NULL to draw the current viewport (the one set with set_viewport()).
In conjunction with action_get_touchscreen_press_in_vp() it should be less of a pain to draw buttons and get presses on them.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28239 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 22 insertions, 0 deletions

diff --git a/firmware/drivers/lcd-bitmap-common.c b/firmware/drivers/lcd-bitmap-common.c
index 2ce11e3398..d242096138 100644
--- a/firmware/drivers/lcd-bitmap-common.c
+++ b/firmware/drivers/lcd-bitmap-common.c
@@ -81,6 +81,28 @@ static void lcd_gradient_rect(int x1, int x2, int y, unsigned h,
 }
 #endif
 
+/*
+ * draws the borders of the viewport, or of current_vp if vp == NULL
+ **/
+void LCDFN(draw_viewport)(const struct viewport *vp)
+{
+    if (vp == NULL)
+        LCDFN(drawrect)(0, 0, current_vp->width, current_vp->height);
+    else
+        LCDFN(drawrect)(vp->x, vp->y, vp->width, vp->height);
+}
+
+/*
+ * fills the rectangle formed by vp or by current_vp if vp == NULL
+ **/
+void LCDFN(fill_viewport)(const struct viewport *vp)
+{
+    if (vp == NULL)
+        LCDFN(fillrect)(0, 0, current_vp->width, current_vp->height);
+    else
+        LCDFN(fillrect)(vp->x, vp->y, vp->width, vp->height);
+}
+
 /* put a string at a given pixel position, skipping first ofs pixel columns */
 static void LCDFN(putsxyofs)(int x, int y, int ofs, const unsigned char *str)
 {