Touchscreen: adjust calculation of bar touch position

Increased the precision of the bar from 100 steps to 1000 steps so
it is possible to make finer adjustments, and made it possible to
pick the maximum value in a bar rather than just the maximum - 1.

Change-Id: I2e694d3e86e4a151e014da1bd15ab3ade4c4b95e

1 files changed, 15 insertions, 6 deletions

diff --git a/apps/gui/skin_engine/skin_touchsupport.c b/apps/gui/skin_engine/skin_touchsupport.c
index 7a03e83c36..b92fd1e83e 100644
--- a/apps/gui/skin_engine/skin_touchsupport.c
+++ b/apps/gui/skin_engine/skin_touchsupport.c
@@ -109,12 +109,21 @@ int skin_get_touchaction(struct wps_data *data, int* edge_offset,
                         {
                             struct progressbar *bar =
                                     SKINOFFSETTOPTR(skin_buffer, r->bar);
-                            if(r->width > r->height)
-                                *edge_offset = vx*100/r->width;
-                            else /* vertical bars are bottom-up by default */
-                                *edge_offset = 100 - vy*100/r->height;
+                            if(r->width > r->height) {
+                                if(r->width > 1)
+                                    *edge_offset = vx*1000/(r->width - 1);
+                                else
+                                    *edge_offset = 0;
+                            } else {
+                                /* vertical bars are bottom-up by default */
+                                if(r->height > 1)
+                                    *edge_offset = 1000 - vy*1000/(r->height - 1);
+                                else
+                                    *edge_offset = 0;
+                            }
+
                             if (r->reverse_bar || (bar && bar->invert_fill_direction))
-                                *edge_offset = 100 - *edge_offset;
+                                *edge_offset = 1000 - *edge_offset;
                         }
                         temp = r;
                         returncode = r->action;
@@ -294,7 +303,7 @@ int skin_get_touchaction(struct wps_data *data, int* edge_offset,
                 {                    
                     int val, count;
                     get_setting_info_for_bar(bar->setting_id, &count, &val);
-                    val = *edge_offset * count / 100;
+                    val = *edge_offset * count / 1000;
                     update_setting_value_from_touch(bar->setting_id, val);
                 }
             }