From 1ce70a679c645c1886eff1d96c5c9f2a630066d6 Mon Sep 17 00:00:00 2001
From: Yoshihisa Uchida <uchida@rockbox.org>
Date: Mon, 7 Jun 2010 11:04:09 +0000
Subject: text viewer: can selected scroll by column/scroll by screen for the
 horizontal screen. Viewer Options: "Scrollbar", "Overlap Pages", "Auto-Scroll
 Speed" move to Scroll Settings > Vertical.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26654 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/text_viewer/readme.txt       |   2 -
 apps/plugins/text_viewer/text_viewer.c    |   4 +-
 apps/plugins/text_viewer/tv_action.c      |  14 ++--
 apps/plugins/text_viewer/tv_action.h      |   2 +-
 apps/plugins/text_viewer/tv_bookmark.c    |   2 +-
 apps/plugins/text_viewer/tv_menu.c        | 133 ++++++++++++++++++++----------
 apps/plugins/text_viewer/tv_preferences.c |   6 +-
 apps/plugins/text_viewer/tv_preferences.h |   9 +-
 apps/plugins/text_viewer/tv_settings.c    |  28 ++++---
 9 files changed, 131 insertions(+), 69 deletions(-)

diff --git a/apps/plugins/text_viewer/readme.txt b/apps/plugins/text_viewer/readme.txt
index 0e9bd7ce49..1180965fe4 100644
--- a/apps/plugins/text_viewer/readme.txt
+++ b/apps/plugins/text_viewer/readme.txt
@@ -46,8 +46,6 @@ TODO list
 
   - when the line_mode is reflow, allow to specify indent spaces.
 
-  - for the horizontal scroll, allow the select scroll by screen/scroll by column for the settings menu.
-
   - draw images that are linked to the text. (<img src="...">)
 
   - play audios that are linked to the text. (<audio src="...">)
diff --git a/apps/plugins/text_viewer/text_viewer.c b/apps/plugins/text_viewer/text_viewer.c
index 452f7108a6..ea8972491b 100644
--- a/apps/plugins/text_viewer/text_viewer.c
+++ b/apps/plugins/text_viewer/text_viewer.c
@@ -111,7 +111,7 @@ enum plugin_status plugin_start(const void* file)
                 if (prefs->windows > 1)
                 {
                     /* Screen left */
-                    tv_scroll_left(TV_HORIZONTAL_SCROLL_WINDOW);
+                    tv_scroll_left(TV_HORIZONTAL_SCROLL_PREFS);
                 }
                 else {   /* prefs->windows == 1 */
                     /* scroll to previous page */
@@ -128,7 +128,7 @@ enum plugin_status plugin_start(const void* file)
                 if (prefs->windows > 1)
                 {
                     /* Screen right */
-                    tv_scroll_right(TV_HORIZONTAL_SCROLL_WINDOW);
+                    tv_scroll_right(TV_HORIZONTAL_SCROLL_PREFS);
                 }
                 else {   /* prefs->windows == 1 */
                     /* scroll to next page */
diff --git a/apps/plugins/text_viewer/tv_action.c b/apps/plugins/text_viewer/tv_action.c
index fb7fdb40e6..1f2ad78666 100644
--- a/apps/plugins/text_viewer/tv_action.c
+++ b/apps/plugins/text_viewer/tv_action.c
@@ -89,7 +89,7 @@ void tv_scroll_up(enum tv_vertical_scroll_mode mode)
     int offset_line = -1;
 
     if ((mode == TV_VERTICAL_SCROLL_PAGE) ||
-        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE))
+        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->vertical_scroll_mode == PAGE))
     {
         offset_page--;
 #ifdef HAVE_LCD_BITMAP
@@ -105,7 +105,7 @@ void tv_scroll_down(enum tv_vertical_scroll_mode mode)
     int offset_line = 1;
 
     if ((mode == TV_VERTICAL_SCROLL_PAGE) ||
-        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE))
+        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->vertical_scroll_mode == PAGE))
     {
         offset_page++;
 #ifdef HAVE_LCD_BITMAP
@@ -120,7 +120,8 @@ void tv_scroll_left(enum tv_horizontal_scroll_mode mode)
     int offset_window = 0;
     int offset_column = 0;
 
-    if (mode == TV_HORIZONTAL_SCROLL_COLUMN)
+    if ((mode == TV_HORIZONTAL_SCROLL_COLUMN) ||
+        (mode == TV_HORIZONTAL_SCROLL_PREFS && prefs->horizontal_scroll_mode == COLUMN))
     {
         /* Scroll left one column */
         offset_column--;
@@ -138,7 +139,8 @@ void tv_scroll_right(enum tv_horizontal_scroll_mode mode)
     int offset_window = 0;
     int offset_column = 0;
 
-    if (mode == TV_HORIZONTAL_SCROLL_COLUMN)
+    if ((mode == TV_HORIZONTAL_SCROLL_COLUMN) ||
+        (mode == TV_HORIZONTAL_SCROLL_PREFS && prefs->horizontal_scroll_mode == COLUMN))
     {
         /* Scroll right one column */
         offset_column++;
@@ -159,7 +161,7 @@ void tv_top(void)
 void tv_bottom(void)
 {
     tv_move_screen(0, 0, SEEK_END);
-    if (prefs->scroll_mode == PAGE)
+    if (prefs->vertical_scroll_mode == PAGE)
         tv_move_screen(0, -tv_get_screen_pos()->line, SEEK_CUR);
 }
 
@@ -172,7 +174,7 @@ enum tv_menu_result tv_menu(void)
     res = tv_display_menu();
 
     tv_convert_fpos(cur_file_pos, &cur_pos);
-    if (prefs->scroll_mode == PAGE)
+    if (prefs->vertical_scroll_mode == PAGE)
         cur_pos.line = 0;
 
     tv_move_screen(cur_pos.page, cur_pos.line, SEEK_SET);
diff --git a/apps/plugins/text_viewer/tv_action.h b/apps/plugins/text_viewer/tv_action.h
index c5f7bd0e2f..b01079cbd1 100644
--- a/apps/plugins/text_viewer/tv_action.h
+++ b/apps/plugins/text_viewer/tv_action.h
@@ -29,7 +29,7 @@
 enum tv_horizontal_scroll_mode
 {
     TV_HORIZONTAL_SCROLL_COLUMN, /* left/right one column */
-    TV_HORIZONTAL_SCROLL_WINDOW, /* left/right one window */
+    TV_HORIZONTAL_SCROLL_SCREEN, /* left/right one screen */
     TV_HORIZONTAL_SCROLL_PREFS,  /* left/right follows the settings */
 };
 
diff --git a/apps/plugins/text_viewer/tv_bookmark.c b/apps/plugins/text_viewer/tv_bookmark.c
index 61df02705e..78e4c60a83 100644
--- a/apps/plugins/text_viewer/tv_bookmark.c
+++ b/apps/plugins/text_viewer/tv_bookmark.c
@@ -224,7 +224,7 @@ void tv_select_bookmark(void)
     }
 
     /* move to the select position */
-    if (tv_get_preferences()->scroll_mode == PAGE)
+    if (tv_get_preferences()->vertical_scroll_mode == PAGE)
         select_pos.line = 0;
 
     tv_move_screen(select_pos.page, select_pos.line, SEEK_SET);
diff --git a/apps/plugins/text_viewer/tv_menu.c b/apps/plugins/text_viewer/tv_menu.c
index ff2d6758a4..38c4af1f96 100644
--- a/apps/plugins/text_viewer/tv_menu.c
+++ b/apps/plugins/text_viewer/tv_menu.c
@@ -30,7 +30,10 @@
 
 static struct tv_preferences new_prefs;
 
-/* scrollbar menu */
+/*                                 */
+/* horizontal scroll settings menu */
+/*                                 */
+
 #ifdef HAVE_LCD_BITMAP
 static bool tv_horizontal_scrollbar_setting(void)
 {
@@ -42,7 +45,38 @@ static bool tv_horizontal_scrollbar_setting(void)
     return rb->set_option("Horizontal Scrollbar", &new_prefs.horizontal_scrollbar, INT,
                            names, 2, NULL);
 }
+#endif
+
+static bool tv_horizontal_scroll_mode_setting(void)
+{
+    static const struct opt_items names[] = {
+        {"Scroll by Screen", -1},
+        {"Scroll by Column", -1},
+    };
+
+    return rb->set_option("Scroll Mode", &new_prefs.horizontal_scroll_mode, INT,
+                          names, 2, NULL);
+}
 
+#ifdef HAVE_LCD_BITMAP
+MENUITEM_FUNCTION(horizontal_scrollbar_item, 0, "Scrollbar",
+                  tv_horizontal_scrollbar_setting,
+                  NULL, NULL, Icon_NOICON);
+#endif
+MENUITEM_FUNCTION(horizontal_scroll_mode_item, 0, "Scroll Mode",
+                  tv_horizontal_scroll_mode_setting, NULL, NULL, Icon_NOICON);
+
+MAKE_MENU(horizontal_scroll_menu, "Horizontal", NULL, Icon_NOICON,
+#ifdef HAVE_LCD_BITMAP
+          &horizontal_scrollbar_item,
+#endif
+          &horizontal_scroll_mode_item);
+
+/*                               */
+/* vertical scroll settings menu */
+/*                               */
+
+#ifdef HAVE_LCD_BITMAP
 static bool tv_vertical_scrollbar_setting(void)
 {
     static const struct opt_items names[] = {
@@ -53,18 +87,64 @@ static bool tv_vertical_scrollbar_setting(void)
     return rb->set_option("Vertical Scrollbar", &new_prefs.vertical_scrollbar, INT,
                            names, 2, NULL);
 }
+#endif
 
-MENUITEM_FUNCTION(horizontal_scrollbar_item, 0, "Horizontal",
-                  tv_horizontal_scrollbar_setting,
-                  NULL, NULL, Icon_NOICON);
-MENUITEM_FUNCTION(vertical_scrollbar_item, 0, "Vertical",
+static bool tv_vertical_scroll_mode_setting(void)
+{
+    static const struct opt_items names[] = {
+        {"Scroll by Page", -1},
+        {"Scroll by Line", -1},
+    };
+
+    return rb->set_option("Scroll Mode", &new_prefs.vertical_scroll_mode, INT,
+                          names, 2, NULL);
+}
+
+static bool tv_page_mode_setting(void)
+{
+    static const struct opt_items names[] = {
+        {"No",  -1},
+        {"Yes", -1},
+    };
+
+    return rb->set_option("Overlap Pages", &new_prefs.page_mode, INT,
+                           names, 2, NULL);
+}
+
+static bool tv_autoscroll_speed_setting(void)
+{
+    return rb->set_int("Auto-scroll Speed", "", UNIT_INT, 
+                       &new_prefs.autoscroll_speed, NULL, 1, 1, 10, NULL);
+}
+
+#ifdef HAVE_LCD_BITMAP
+MENUITEM_FUNCTION(vertical_scrollbar_item, 0, "Scrollbar",
                   tv_vertical_scrollbar_setting,
                   NULL, NULL, Icon_NOICON);
-MAKE_MENU(scrollbar_menu, "Scrollbar", NULL, Icon_NOICON,
-          &horizontal_scrollbar_item, &vertical_scrollbar_item);
 #endif
+MENUITEM_FUNCTION(vertical_scroll_mode_item, 0, "Scroll Mode",
+                  tv_vertical_scroll_mode_setting, NULL, NULL, Icon_NOICON);
+MENUITEM_FUNCTION(page_mode_item, 0, "Overlap Pages", tv_page_mode_setting,
+                  NULL, NULL, Icon_NOICON);
+MENUITEM_FUNCTION(autoscroll_speed_item, 0, "Auto-Scroll Speed",
+                  tv_autoscroll_speed_setting, NULL, NULL, Icon_NOICON);
+
+MAKE_MENU(vertical_scroll_menu, "Vertical", NULL, Icon_NOICON,
+#ifdef HAVE_LCD_BITMAP
+          &vertical_scrollbar_item,
+#endif
+          &vertical_scroll_mode_item, &page_mode_item, &autoscroll_speed_item);
+
+/*                      */
+/* scroll settings menu */
+/*                      */
 
+MAKE_MENU(scroll_menu, "Scroll Settings", NULL, Icon_NOICON,
+          &horizontal_scroll_menu, &vertical_scroll_menu);
+
+/*           */
 /* main menu */
+/*           */
 
 static bool tv_encoding_setting(void)
 {
@@ -111,17 +191,6 @@ static bool tv_windows_setting(void)
                        &new_prefs.windows, NULL, 1, 1, 5, NULL);
 }
 
-static bool tv_scroll_mode_setting(void)
-{
-    static const struct opt_items names[] = {
-        {"Scroll by Page", -1},
-        {"Scroll by Line", -1},
-    };
-
-    return rb->set_option("Scroll Mode", &new_prefs.scroll_mode, INT,
-                          names, 2, NULL);
-}
-
 static bool tv_alignment_setting(void)
 {
     static const struct opt_items names[] = {
@@ -134,17 +203,6 @@ static bool tv_alignment_setting(void)
 }
 
 #ifdef HAVE_LCD_BITMAP
-static bool tv_page_mode_setting(void)
-{
-    static const struct opt_items names[] = {
-        {"No",  -1},
-        {"Yes", -1},
-    };
-
-    return rb->set_option("Overlap Pages", &new_prefs.page_mode, INT,
-                           names, 2, NULL);
-}
-
 static bool tv_header_setting(void)
 {
     int len = (rb->global_settings->statusbar == STATUSBAR_TOP)? 4 : 2;
@@ -280,12 +338,6 @@ static bool tv_font_setting(void)
 }
 #endif
 
-static bool tv_autoscroll_speed_setting(void)
-{
-    return rb->set_int("Auto-scroll Speed", "", UNIT_INT, 
-                       &new_prefs.autoscroll_speed, NULL, 1, 1, 10, NULL);
-}
-
 MENUITEM_FUNCTION(encoding_item, 0, "Encoding", tv_encoding_setting,
                   NULL, NULL, Icon_NOICON);
 MENUITEM_FUNCTION(word_wrap_item, 0, "Word Wrap", tv_word_wrap_setting,
@@ -297,8 +349,6 @@ MENUITEM_FUNCTION(windows_item, 0, "Screens Per Page", tv_windows_setting,
 MENUITEM_FUNCTION(alignment_item, 0, "Alignment", tv_alignment_setting,
                   NULL, NULL, Icon_NOICON);
 #ifdef HAVE_LCD_BITMAP
-MENUITEM_FUNCTION(page_mode_item, 0, "Overlap Pages", tv_page_mode_setting,
-                  NULL, NULL, Icon_NOICON);
 MENUITEM_FUNCTION(header_item, 0, "Show Header", tv_header_setting,
                   NULL, NULL, Icon_NOICON);
 MENUITEM_FUNCTION(footer_item, 0, "Show Footer", tv_footer_setting,
@@ -306,17 +356,14 @@ MENUITEM_FUNCTION(footer_item, 0, "Show Footer", tv_footer_setting,
 MENUITEM_FUNCTION(font_item, 0, "Font", tv_font_setting,
                   NULL, NULL, Icon_NOICON);
 #endif
-MENUITEM_FUNCTION(scroll_mode_item, 0, "Scroll Mode", tv_scroll_mode_setting,
-                  NULL, NULL, Icon_NOICON);
-MENUITEM_FUNCTION(autoscroll_speed_item, 0, "Auto-Scroll Speed",
-                  tv_autoscroll_speed_setting, NULL, NULL, Icon_NOICON);
+
 MAKE_MENU(option_menu, "Viewer Options", NULL, Icon_NOICON,
             &encoding_item, &word_wrap_item, &line_mode_item, &windows_item,
             &alignment_item,
 #ifdef HAVE_LCD_BITMAP
-            &scrollbar_menu, &page_mode_item, &header_item, &footer_item, &font_item,
+            &header_item, &footer_item, &font_item,
 #endif
-            &scroll_mode_item, &autoscroll_speed_item);
+            &scroll_menu);
 
 static enum tv_menu_result tv_options_menu(void)
 {
diff --git a/apps/plugins/text_viewer/tv_preferences.c b/apps/plugins/text_viewer/tv_preferences.c
index ad4b0aa12b..62a700b85d 100644
--- a/apps/plugins/text_viewer/tv_preferences.c
+++ b/apps/plugins/text_viewer/tv_preferences.c
@@ -38,7 +38,8 @@ static void tv_notify_change_preferences(const struct tv_preferences *oldp,
     /*
      * the following items do not check.
      *   - alignment
-     *   - scroll_mode
+     *   - horizontal_scroll_mode
+     *   - vertical_scroll_mode
      *   - page_mode
      *   - font
      *   - autoscroll_speed
@@ -94,7 +95,8 @@ void tv_set_default_preferences(struct tv_preferences *p)
     p->line_mode = NORMAL;
     p->windows = 1;
     p->alignment = LEFT;
-    p->scroll_mode = PAGE;
+    p->horizontal_scroll_mode = SCREEN;
+    p->vertical_scroll_mode = PAGE;
     p->page_mode = NO_OVERLAP;
     p->horizontal_scrollbar = SB_OFF;
     p->vertical_scrollbar = SB_OFF;
diff --git a/apps/plugins/text_viewer/tv_preferences.h b/apps/plugins/text_viewer/tv_preferences.h
index ca02c2b5c9..dc29dcae26 100644
--- a/apps/plugins/text_viewer/tv_preferences.h
+++ b/apps/plugins/text_viewer/tv_preferences.h
@@ -71,9 +71,14 @@ struct tv_preferences {
     } footer_mode;
 
     enum {
-        PAGE=0,
+        SCREEN = 0,
+        COLUMN,
+    } horizontal_scroll_mode;
+
+    enum {
+        PAGE = 0,
         LINE,
-    } scroll_mode;
+    } vertical_scroll_mode;
 
     int autoscroll_speed;
 
diff --git a/apps/plugins/text_viewer/tv_settings.c b/apps/plugins/text_viewer/tv_settings.c
index bf6ae1e74a..b537b3fb40 100644
--- a/apps/plugins/text_viewer/tv_settings.c
+++ b/apps/plugins/text_viewer/tv_settings.c
@@ -47,7 +47,8 @@
  * scroll_mode            1
  * autoscroll_speed       1
  * horizontal_scrollbar   1
- * (reserved)             15
+ * horizontal_scroll_mode 1
+ * (reserved)             14
  * font name              MAX_PATH
  */
 
@@ -55,7 +56,7 @@
 #define TV_GLOBAL_SETTINGS_FILE          VIEWERS_DIR "/tv_global.dat"
 
 #define TV_GLOBAL_SETTINGS_HEADER        "\x54\x56\x47\x53" /* "TVGS" */
-#define TV_GLOBAL_SETTINGS_VERSION       0x34
+#define TV_GLOBAL_SETTINGS_VERSION       0x35
 #define TV_GLOBAL_SETTINGS_HEADER_SIZE   5
 #define TV_GLOBAL_SETTINGS_FIRST_VERSION 0x31
 
@@ -86,7 +87,8 @@
  *     scroll_mode            1
  *     autoscroll_speed       1
  *     horizontal_scrollbar   1
- *     (reserved)             15
+ *     horizontal_scroll_mode 1
+ *     (reserved)             14
  *     font name              MAX_PATH
  *   bookmark count           1
  *   [1st bookmark]
@@ -108,7 +110,7 @@
 #define TV_SETTINGS_TMP_FILE      VIEWERS_DIR "/tv_file.tmp"
 
 #define TV_SETTINGS_HEADER        "\x54\x56\x53" /* "TVS" */
-#define TV_SETTINGS_VERSION       0x35
+#define TV_SETTINGS_VERSION       0x36
 #define TV_SETTINGS_HEADER_SIZE   4
 #define TV_SETTINGS_FIRST_VERSION 0x32
 
@@ -149,17 +151,22 @@ static bool tv_read_preferences(int pfd, int version, struct tv_preferences *pre
     prefs->vertical_scrollbar = *p++;
     /* skip need_scrollbar */
     p++;
-    prefs->page_mode        = *p++;
-    prefs->header_mode      = *p++;
-    prefs->footer_mode      = *p++;
-    prefs->scroll_mode      = *p++;
-    prefs->autoscroll_speed = *p++;
+    prefs->page_mode            = *p++;
+    prefs->header_mode          = *p++;
+    prefs->footer_mode          = *p++;
+    prefs->vertical_scroll_mode = *p++;
+    prefs->autoscroll_speed     = *p++;
 
     if (version > 2)
         prefs->horizontal_scrollbar = *p;
     else
         prefs->horizontal_scrollbar = SB_OFF;
 
+    if (version > 3)
+        prefs->horizontal_scroll_mode = *p++;
+    else
+        prefs->horizontal_scroll_mode = SCREEN;
+
     rb->memcpy(prefs->font_name, buf + read_size - MAX_PATH, MAX_PATH);
 
 #ifdef HAVE_LCD_BITMAP
@@ -185,9 +192,10 @@ static bool tv_write_preferences(int pfd, const struct tv_preferences *prefs)
     *p++ = prefs->page_mode;
     *p++ = prefs->header_mode;
     *p++ = prefs->footer_mode;
-    *p++ = prefs->scroll_mode;
+    *p++ = prefs->vertical_scroll_mode;
     *p++ = prefs->autoscroll_speed;
     *p++ = prefs->horizontal_scrollbar;
+    *p++ = prefs->horizontal_scroll_mode;
 
     rb->memcpy(buf + 28, prefs->font_name, MAX_PATH);
 
-- 
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