Factor out WPS' %V parsing function into viewport.c, in preperation of customlist. No functional change.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22222 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 116 insertions, 92 deletions

diff --git a/apps/gui/skin_engine/wps_parser.c b/apps/gui/skin_engine/wps_parser.c
index 440133327a..3df2c5f0aa 100644
--- a/apps/gui/skin_engine/wps_parser.c
+++ b/apps/gui/skin_engine/wps_parser.c
@@ -25,6 +25,7 @@
 #include "file.h"
 #include "misc.h"
 #include "plugin.h"
+#include "viewport.h"
 
 #ifdef __PCTOOL__
 #ifdef WPSEDITOR
@@ -587,26 +588,12 @@ static int parse_viewport(const char *wps_bufptr,
 {
     (void)token; /* Kill warnings */
     const char *ptr = wps_bufptr;
-    struct viewport* vp;
-    int depth;
-    uint32_t set = 0;
-    enum {
-        PL_X = 0,
-        PL_Y,
-        PL_WIDTH,
-        PL_HEIGHT,
-        PL_FONT,
-        PL_FG,
-        PL_BG,
-    };
-    int lcd_width = LCD_WIDTH, lcd_height = LCD_HEIGHT;
+
+    const int screen = 
 #ifdef HAVE_REMOTE_LCD
-    if (wps_data->remote_wps)
-    {
-        lcd_width = LCD_REMOTE_WIDTH;
-        lcd_height = LCD_REMOTE_HEIGHT;
-    }
+            wps_data->remote_wps ? SCREEN_REMOTE :
 #endif
+                                                    SCREEN_MAIN;
 
     if (wps_data->num_viewports >= WPS_MAX_VIEWPORTS)
         return WPS_ERROR_INVALID_PARAM;
@@ -635,87 +622,19 @@ static int parse_viewport(const char *wps_bufptr,
         return WPS_ERROR_INVALID_PARAM;
     
     ptr++;
-    vp = &wps_data->viewports[wps_data->num_viewports].vp;
+    struct viewport *vp = &wps_data->viewports[wps_data->num_viewports].vp;
     /* format: %V|x|y|width|height|font|fg_pattern|bg_pattern| */
 
     /* Set the defaults for fields not user-specified */
     vp->drawmode = DRMODE_SOLID;
 
-    /* Work out the depth of this display */
-#ifdef HAVE_REMOTE_LCD
-    depth = (wps_data->remote_wps ? LCD_REMOTE_DEPTH : LCD_DEPTH);
-#else
-    depth = LCD_DEPTH;
-#endif
-
-#ifdef HAVE_LCD_COLOR
-    if (depth == 16)
-    {
-        if (!(ptr = parse_list("dddddcc", &set, '|', ptr, &vp->x, &vp->y, &vp->width,
-                    &vp->height, &vp->font, &vp->fg_pattern,&vp->bg_pattern)))
-            return WPS_ERROR_INVALID_PARAM;
-    }
-    else 
-#endif
-#if (LCD_DEPTH == 2) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 2)
-    if (depth == 2) {
-        /* Default to black on white */
-        vp->fg_pattern = 0;
-        vp->bg_pattern = 3;
-        if (!(ptr = parse_list("dddddgg", &set, '|', ptr, &vp->x, &vp->y, &vp->width,
-                    &vp->height, &vp->font, &vp->fg_pattern, &vp->bg_pattern)))
-            return WPS_ERROR_INVALID_PARAM;
-    }
-    else 
-#endif
-#if (LCD_DEPTH == 1) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 1)
-    if (depth == 1)
-    {
-        if (!(ptr = parse_list("ddddd", &set, '|', ptr, &vp->x, &vp->y, 
-                                    &vp->width, &vp->height, &vp->font)))
-            return WPS_ERROR_INVALID_PARAM;
-    }
-      else
-#endif
-    {}
+    if (!(ptr = viewport_parse_viewport(vp, screen, ptr, '|')))
+        return WPS_ERROR_INVALID_PARAM;
 
     /* Check for trailing | */
     if (*ptr != '|')
         return WPS_ERROR_INVALID_PARAM;
 
-    if (!LIST_VALUE_PARSED(set, PL_X) || !LIST_VALUE_PARSED(set, PL_Y))
-        return WPS_ERROR_INVALID_PARAM;
-    
-    /* fix defaults */
-    if (!LIST_VALUE_PARSED(set, PL_WIDTH))
-        vp->width = lcd_width - vp->x;
-    if (!LIST_VALUE_PARSED(set, PL_HEIGHT))
-        vp->height = lcd_height - vp->y;
-    
-    /* Default to using the user font if the font was an invalid number */
-    if (!LIST_VALUE_PARSED(set, PL_FONT) ||
-         ((vp->font != FONT_SYSFIXED) && (vp->font != FONT_UI)))
-        vp->font = FONT_UI;
-
-    /* Validate the viewport dimensions - we know that the numbers are
-       non-negative integers */
-    if ((vp->x >= lcd_width) ||
-        ((vp->x + vp->width) > lcd_width) ||
-        (vp->y >= lcd_height) ||
-        ((vp->y + vp->height) > lcd_height))
-    {
-        return WPS_ERROR_INVALID_PARAM;
-    }
-    
-#ifdef HAVE_LCD_COLOR
-    if (depth == 16)
-    {
-        if (!LIST_VALUE_PARSED(set, PL_FG))
-            vp->fg_pattern = global_settings.fg_color;
-        if (!LIST_VALUE_PARSED(set, PL_BG))
-            vp->bg_pattern = global_settings.bg_color;
-    }
-#endif
 
     wps_data->viewports[wps_data->num_viewports-1].last_line = wps_data->num_lines - 1;
 
diff --git a/apps/gui/viewport.c b/apps/gui/viewport.c
index d635c10481..52704d9f69 100644
--- a/apps/gui/viewport.c
+++ b/apps/gui/viewport.c
@@ -35,6 +35,15 @@
 #include "screen_access.h"
 #include "appevents.h"
 
+
+
+#define LINE_SEL_FROM_SETTINGS(vp) \
+    do { \
+        vp->lss_pattern = global_settings.lss_color; \
+        vp->lse_pattern = global_settings.lse_color; \
+        vp->lst_pattern = global_settings.lst_color; \
+    } while (0)
+
 static int statusbar_enabled = 0;
 
 int viewport_get_nb_lines(struct viewport *vp)
@@ -88,9 +97,7 @@ void viewport_set_defaults(struct viewport *vp, enum screen_type screen)
 #ifdef HAVE_LCD_COLOR
         vp->fg_pattern = global_settings.fg_color;
         vp->bg_pattern = global_settings.bg_color;
-        vp->lss_pattern = global_settings.lss_color;
-        vp->lse_pattern = global_settings.lse_color;
-        vp->lst_pattern = global_settings.lst_color;
+        LINE_SEL_FROM_SETTINGS(vp);
 #elif LCD_DEPTH > 1
         vp->fg_pattern = LCD_DEFAULT_FG;
         vp->bg_pattern = LCD_DEFAULT_BG;
@@ -151,3 +158,94 @@ void viewportmanager_statusbar_changed(void* data)
 #endif
     viewportmanager_set_statusbar(statusbar_enabled);
 }
+
+const char* viewport_parse_viewport(struct viewport *vp,
+                                    enum screen_type screen,
+                                    const char *bufptr,
+                                    const char separator)
+{
+    /* parse the list to the viewport struct */
+    const char *ptr = bufptr;
+    int depth;
+    uint32_t set = 0;
+
+    enum {
+        PL_X = 0,
+        PL_Y,
+        PL_WIDTH,
+        PL_HEIGHT,
+        PL_FONT,
+        PL_FG,
+        PL_BG,
+    };
+    
+    /* Work out the depth of this display */
+    depth = screens[screen].depth;
+#ifdef HAVE_LCD_COLOR
+    if (depth == 16)
+    {
+        if (!(ptr = parse_list("dddddcc", &set, separator, ptr, &vp->x, &vp->y, &vp->width,
+                    &vp->height, &vp->font, &vp->fg_pattern,&vp->bg_pattern)))
+            return VP_ERROR;
+    }
+    else 
+#endif
+#if (LCD_DEPTH == 2) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 2)
+    if (depth == 2) {
+        if (!(ptr = parse_list("dddddgg", &set, separator, ptr, &vp->x, &vp->y, &vp->width,
+                    &vp->height, &vp->font, &vp->fg_pattern, &vp->bg_pattern)))
+            return VP_ERROR;
+    }
+    else 
+#endif
+#if (LCD_DEPTH == 1) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 1)
+    if (depth == 1)
+    {
+        if (!(ptr = parse_list("ddddd", &set, separator, ptr, &vp->x, &vp->y, &vp->width,
+                &vp->height, &vp->font)))
+            return VP_ERROR;
+    }
+    else
+#endif
+    {}
+
+    /* X and Y *must* be set */
+    if (!LIST_VALUE_PARSED(set, PL_X) || !LIST_VALUE_PARSED(set, PL_Y))
+        return VP_ERROR;
+    
+    /* fix defaults */
+    if (!LIST_VALUE_PARSED(set, PL_WIDTH))
+        vp->width = screens[screen].lcdwidth - vp->x;
+    if (!LIST_VALUE_PARSED(set, PL_HEIGHT))
+        vp->height = screens[screen].lcdheight - vp->y;
+
+#if (LCD_DEPTH > 1)
+    if (!LIST_VALUE_PARSED(set, PL_FG))
+        vp->fg_pattern = global_settings.fg_color;
+    if (!LIST_VALUE_PARSED(set, PL_BG))
+        vp->bg_pattern = global_settings.bg_color;
+#endif
+#ifdef HAVE_LCD_COLOR
+    LINE_SEL_FROM_SETTINGS(vp);
+#endif
+    /* Validate the viewport dimensions - we know that the numbers are
+       non-negative integers, ignore bars and assume the viewport takes them
+       * into account */
+    if ((vp->x >= screens[screen].lcdwidth) ||
+        ((vp->x + vp->width) > screens[screen].lcdwidth) ||
+        (vp->y >= screens[screen].lcdheight) ||
+        ((vp->y + vp->height) > screens[screen].lcdheight))
+    {
+        return VP_ERROR;
+    }
+
+    /* Default to using the user font if the font was an invalid number or '-'*/
+    if (((vp->font != FONT_SYSFIXED) && (vp->font != FONT_UI))
+            || !LIST_VALUE_PARSED(set, PL_FONT)
+            )
+        vp->font = FONT_UI;
+        
+    vp->drawmode = DRMODE_SOLID;
+
+    return ptr;
+}
diff --git a/apps/gui/viewport.h b/apps/gui/viewport.h
index acc9758ee3..65a9815bcd 100644
--- a/apps/gui/viewport.h
+++ b/apps/gui/viewport.h
@@ -38,6 +38,13 @@ int viewport_load_config(const char *config, struct viewport *vp);
 
 void viewport_set_defaults(struct viewport *vp, enum screen_type screen);
 
+/* parse a viewport list, which looks like
+ * X|Y|width|height|font|foregorund color|background color
+ * | is a separator */
+const char* viewport_parse_viewport(struct viewport *vp,
+                                    enum screen_type screen,
+                                    const char *bufptr,
+                                    const char separator);
 /* Used to specify which screens the statusbar (SB) should be displayed on.
  *
  * The parameter is a bit OR'ed combination of the following (screen is