add a bitmap progress bar option + add %P|filename.bmp| tag to the WPS

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8648 a1c6a512-1295-4272-9138-f99709370657

5 files changed, 172 insertions, 6 deletions

diff --git a/apps/gui/gwps-common.c b/apps/gui/gwps-common.c
index 34d868f6a2..c918fddf5c 100644
--- a/apps/gui/gwps-common.c
+++ b/apps/gui/gwps-common.c
@@ -190,6 +190,61 @@ bool wps_data_preload_tags(struct wps_data *data, char *buf,
         break;
 #endif
 
+        case 'P':
+            /* progress bar image */
+        {
+            int ret = 0;
+            char *ptr = buf+2;
+            char *pos = NULL;
+            char imgname[MAX_PATH];
+
+            /* format: %P|filename.bmp| */
+            {
+                /* get filename */
+                pos = strchr(ptr, '|');
+                if ((pos - ptr) <
+                    (int)sizeof(imgname)-ROCKBOX_DIR_LEN-2)
+                {
+                    memcpy(imgname, bmpdir, bmpdirlen);
+                    imgname[bmpdirlen] = '/';
+                    memcpy(&imgname[bmpdirlen+1],
+                           ptr, pos - ptr);
+                    imgname[bmpdirlen+1+pos-ptr] = 0;
+                }
+                else
+                    /* filename too long */
+                    imgname[0] = 0;
+
+                ptr = pos+1;
+
+                /* load the image */
+                data->progressbar.bm.data=data->img_buf_ptr;
+                ret = read_bmp_file(imgname, &data->progressbar.bm,
+                                    data->img_buf_free,
+                                    FORMAT_ANY|FORMAT_TRANSPARENT);
+                        
+                if (ret > 0)
+                {
+#if LCD_DEPTH == 16
+                     if (ret % 2) ret++; 
+                     /* Always consume an even number of bytes */
+#endif
+
+                     data->img_buf_ptr += ret;
+                     data->img_buf_free -= ret;
+
+                     if (data->progressbar.bm.width <= LCD_WIDTH) {
+                          data->progressbar.have_bitmap_pb=true;
+                          return true;
+                     } else
+                          return false;
+                }
+                
+            }
+        }
+
+        break;
+        
         case 'x':
             /* Preload images so the %xd# tag can display it */
         {
@@ -1536,12 +1591,21 @@ bool gui_wps_refresh(struct gui_wps *gwps, int ffwd_offset,
                 if (!data->progress_end)
                     data->progress_end=display->width;
                 
-                gui_scrollbar_draw(display, data->progress_start, sb_y, 
-                                    data->progress_end-data->progress_start,
-                                    data->progress_height,
-                                    state->id3->length?state->id3->length:1, 0,
-                                    state->id3->length?state->id3->elapsed + state->ff_rewind_count:0,
-                                    HORIZONTAL);
+                if (gwps->data->progressbar.have_bitmap_pb)
+                    gui_bitmap_scrollbar_draw(display, data->progressbar.bm,
+                                        data->progress_start, sb_y, 
+                                        data->progress_end-data->progress_start,
+                                        data->progressbar.bm.height,
+                                        state->id3->length?state->id3->length:1, 0,
+                                        state->id3->length?state->id3->elapsed + state->ff_rewind_count:0,
+                                        HORIZONTAL);
+                else
+                    gui_scrollbar_draw(display, data->progress_start, sb_y, 
+                                        data->progress_end-data->progress_start,
+                                        data->progress_height,
+                                        state->id3->length?state->id3->length:1, 0,
+                                        state->id3->length?state->id3->elapsed + state->ff_rewind_count:0,
+                                        HORIZONTAL);
 #ifdef AB_REPEAT_ENABLE
                 if ( ab_repeat_mode_enabled() )
                     ab_draw_markers(display, state->id3->length, 0, sb_y, 
diff --git a/apps/gui/gwps.c b/apps/gui/gwps.c
index 024c3cc79f..166b2ec770 100644
--- a/apps/gui/gwps.c
+++ b/apps/gui/gwps.c
@@ -811,6 +811,7 @@ void wps_data_init(struct wps_data *wps_data)
     }
     wps_data->wps_sb_tag = false;
     wps_data->show_sb_on_wps = false;
+    wps_data->progressbar.have_bitmap_pb=false;
 #else /* HAVE_LCD_CHARCELLS */
     for(i = 0; i < 8; i++)
         wps_data->wps_progress_pat[i] = 0;
diff --git a/apps/gui/gwps.h b/apps/gui/gwps.h
index 4d586147af..2f63a4d1e4 100644
--- a/apps/gui/gwps.h
+++ b/apps/gui/gwps.h
@@ -263,6 +263,11 @@ struct gui_img{
     bool display;           /* is to be displayed */
     bool always_display;    /* not using the preload/display mechanism */
 };
+
+struct prog_img{ /*progressbar image*/
+    struct bitmap bm;
+    bool have_bitmap_pb;
+};
 #endif
 
 struct align_pos {
@@ -293,6 +298,7 @@ struct wps_data
 {
 #ifdef HAVE_LCD_BITMAP
     struct gui_img img[MAX_IMAGES];
+    struct prog_img progressbar;
     unsigned char img_buf[IMG_BUFSIZE];
     unsigned char* img_buf_ptr;
     int img_buf_free;
diff --git a/apps/gui/scrollbar.c b/apps/gui/scrollbar.c
index 73c523f56a..4cf92f4b47 100644
--- a/apps/gui/scrollbar.c
+++ b/apps/gui/scrollbar.c
@@ -21,6 +21,7 @@
 #ifdef HAVE_LCD_BITMAP
 #include "config.h"
 #include "limits.h"
+#include "bmp.h"
 
 void gui_scrollbar_draw(struct screen * screen, int x, int y,
                         int width, int height, int items,
@@ -101,4 +102,94 @@ void gui_scrollbar_draw(struct screen * screen, int x, int y,
     else
         screen->fillrect(x + start + 1, y + 1, size, height - 2);
 }
+
+void gui_bitmap_scrollbar_draw(struct screen * screen, struct bitmap bm, int x, int y,
+                        int width, int height, int items,
+                        int min_shown, int max_shown,
+                        enum orientation orientation)
+{
+    int min;
+    int max;
+    int inner_len;
+    int start;
+    int size;
+
+    screen->set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
+
+    /* clear pixels in progress bar */
+    screen->fillrect(x, y, width, height);
+
+    /* min should be min */
+    if(min_shown < max_shown) {
+        min = min_shown;
+        max = max_shown;
+    }
+    else {
+        min = max_shown;
+        max = min_shown;
+    }
+
+    /* limit min and max */
+    if(min < 0)
+        min = 0;
+    if(min > items)
+        min = items;
+
+    if(max < 0)
+        max = 0;
+    if(max > items)
+        max = items;
+
+    if (orientation == VERTICAL)
+        inner_len = height;
+    else
+        inner_len = width;
+
+    /* avoid overflows */
+    while (items > (INT_MAX / inner_len)) {
+        items >>= 1;
+        min >>= 1;
+        max >>= 1;
+    }
+
+    /* calc start and end of the knob */
+    if (items > 0 && items > (max - min)) {
+        size = inner_len * (max - min) / items;
+        if (size == 0) { /* width of knob is null */
+            size = 1;
+            start = (inner_len - 1) * min / items;
+        } else {
+            start = (inner_len - size) * min / (items - (max - min));
+        }
+    } else {  /* if null draw full bar */
+        size = inner_len;
+        start = 0;
+    }
+
+    screen->set_drawmode(DRMODE_SOLID);
+
+    if(orientation == VERTICAL) {
+#if LCD_DEPTH > 1
+      if (bm.format == FORMAT_MONO)
+#endif
+        screen->mono_bitmap_part(bm.data, 0, 0, 
+                                 bm.width, x, y + start, width, size);
+#if LCD_DEPTH > 1
+      else 
+        screen->transparent_bitmap_part((fb_data *)bm.data, 0, 0, 
+                                        bm.width, x, y + start, width, size);
+#endif 
+    } else {
+#if LCD_DEPTH > 1
+      if (bm.format == FORMAT_MONO)
+#endif
+        screen->mono_bitmap_part(bm.data, 0, 0, 
+                                 bm.width, x + start, y, size, height);
+#if LCD_DEPTH > 1
+      else
+        screen->transparent_bitmap_part((fb_data *)bm.data, 0, 0, 
+                                        bm.width, x + start, y, size, height);
+#endif
+    }
+}
 #endif /* HAVE_LCD_BITMAP */
diff --git a/apps/gui/scrollbar.h b/apps/gui/scrollbar.h
index d7d0be7a7e..541cc2d4df 100644
--- a/apps/gui/scrollbar.h
+++ b/apps/gui/scrollbar.h
@@ -44,5 +44,9 @@ extern void gui_scrollbar_draw(struct screen * screen, int x, int y,
                                int width, int height, int items,
                                int min_shown, int max_shown,
                                enum orientation orientation);
+extern void gui_bitmap_scrollbar_draw(struct screen * screen, struct bitmap bm, int x, int y,
+                            int width, int height, int items,
+                            int min_shown, int max_shown,
+                            enum orientation orientation);
 #endif /* HAVE_LCD_BITMAP */
 #endif /* _GUI_SCROLLBAR_H_ */