1 files changed, 186 insertions, 0 deletions

diff --git a/apps/plugins/text_viewer/tv_action.c b/apps/plugins/text_viewer/tv_action.c
new file mode 100644
index 0000000000..fb7fdb40e6
--- /dev/null
+++ b/apps/plugins/text_viewer/tv_action.c
@@ -0,0 +1,186 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Gilles Roux
+ *               2003 Garrett Derner
+ *               2010 Yoshihisa Uchida
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+#include "tv_action.h"
+#include "tv_bookmark.h"
+#include "tv_pager.h"
+#include "tv_screen_pos.h"
+#include "tv_settings.h"
+#include "tv_window.h"
+
+static const struct tv_preferences *prefs;
+
+bool tv_init(const unsigned char *file)
+{
+    size_t req_size = 0;
+    size_t size;
+    size_t used_size;
+    unsigned char *buffer;
+
+    /* get the plugin buffer */
+    buffer = rb->plugin_get_buffer(&req_size);
+    size = req_size;
+    if (buffer == NULL || size == 0)
+        return false;
+
+    prefs = tv_get_preferences();
+
+    tv_init_bookmark();
+
+    /* initialize modules */
+    if (!tv_init_window(buffer, size, &used_size))
+        return false;
+
+    /* load the preferences and bookmark */
+    tv_load_settings(file);
+
+    /* select to read the page */
+    tv_select_bookmark();
+    return true;
+}
+
+void tv_exit(void *parameter)
+{
+    (void)parameter;
+
+    /* save preference and bookmarks */
+    if (!tv_save_settings())
+        rb->splash(HZ, "Can't save preferences and bookmarks");
+
+    /* finalize modules */
+    tv_finalize_window();
+}
+
+void tv_draw(void)
+{
+    struct tv_screen_pos pos;
+
+    tv_copy_screen_pos(&pos);
+    tv_draw_window();
+    if (pos.line == 0)
+        tv_new_page();
+
+    tv_move_screen(pos.page, pos.line, SEEK_SET);
+}
+
+void tv_scroll_up(enum tv_vertical_scroll_mode mode)
+{
+    int offset_page = 0;
+    int offset_line = -1;
+
+    if ((mode == TV_VERTICAL_SCROLL_PAGE) ||
+        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE))
+    {
+        offset_page--;
+#ifdef HAVE_LCD_BITMAP
+        offset_line = (prefs->page_mode == OVERLAP)? 1:0;
+#endif
+    }
+    tv_move_screen(offset_page, offset_line, SEEK_CUR);
+}
+
+void tv_scroll_down(enum tv_vertical_scroll_mode mode)
+{
+    int offset_page = 0;
+    int offset_line = 1;
+
+    if ((mode == TV_VERTICAL_SCROLL_PAGE) ||
+        (mode == TV_VERTICAL_SCROLL_PREFS && prefs->scroll_mode == PAGE))
+    {
+        offset_page++;
+#ifdef HAVE_LCD_BITMAP
+        offset_line = (prefs->page_mode == OVERLAP)? -1:0;
+#endif
+    }
+    tv_move_screen(offset_page, offset_line, SEEK_CUR);
+}
+
+void tv_scroll_left(enum tv_horizontal_scroll_mode mode)
+{
+    int offset_window = 0;
+    int offset_column = 0;
+
+    if (mode == TV_HORIZONTAL_SCROLL_COLUMN)
+    {
+        /* Scroll left one column */
+        offset_column--;
+    }
+    else
+    {
+        /* Scroll left one window */
+        offset_window--;
+    }
+    tv_move_window(offset_window, offset_column);
+}
+
+void tv_scroll_right(enum tv_horizontal_scroll_mode mode)
+{
+    int offset_window = 0;
+    int offset_column = 0;
+
+    if (mode == TV_HORIZONTAL_SCROLL_COLUMN)
+    {
+        /* Scroll right one column */
+        offset_column++;
+    }
+    else
+    {
+        /* Scroll right one window */
+        offset_window++;
+    }
+    tv_move_window(offset_window, offset_column);
+}
+
+void tv_top(void)
+{
+    tv_move_screen(0, 0, SEEK_SET);
+}
+
+void tv_bottom(void)
+{
+    tv_move_screen(0, 0, SEEK_END);
+    if (prefs->scroll_mode == PAGE)
+        tv_move_screen(0, -tv_get_screen_pos()->line, SEEK_CUR);
+}
+
+enum tv_menu_result tv_menu(void)
+{
+    enum tv_menu_result res;
+    struct tv_screen_pos cur_pos;
+    off_t cur_file_pos = tv_get_screen_pos()->file_pos;
+
+    res = tv_display_menu();
+
+    tv_convert_fpos(cur_file_pos, &cur_pos);
+    if (prefs->scroll_mode == PAGE)
+        cur_pos.line = 0;
+
+    tv_move_screen(cur_pos.page, cur_pos.line, SEEK_SET);
+
+    return res;
+}
+
+void tv_add_or_remove_bookmark(void)
+{
+    tv_toggle_bookmark();
+}