new text viewer

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25644 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 232 insertions, 0 deletions

diff --git a/apps/plugins/textviewer/textviewer.c b/apps/plugins/textviewer/textviewer.c
new file mode 100644
index 0000000..289c741
--- /dev/null
+++ b/apps/plugins/textviewer/textviewer.c
@@ -0,0 +1,232 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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 "textviewer.h"
+#include "tv_bookmark.h"
+#include "tv_button.h"
+#include "tv_menu.h"
+#include "tv_readtext.h"
+#include "tv_screen.h"
+#include "tv_settings.h"
+
+PLUGIN_HEADER
+
+static bool viewer_init(const unsigned char *file)
+{
+    viewer_init_screen();
+    viewer_init_buffer();
+
+    if (!viewer_open(file))
+        return false;
+
+    /* Init mac_text value used in processing buffer */
+    mac_text = false;
+
+    return true;
+}
+
+static void viewer_exit(void *parameter)
+{
+    (void)parameter;
+
+    /* save preference and bookmarks */
+    if (!viewer_save_settings())
+        rb->splash(HZ, "Can't save preference and bookmarks.");
+
+    viewer_close();
+    viewer_finalize_screen();
+}
+
+enum plugin_status plugin_start(const void* file)
+{
+    int button, i, ok;
+    int lastbutton = BUTTON_NONE;
+    bool autoscroll = false;
+    long old_tick;
+
+    old_tick = *rb->current_tick;
+
+    if (!file)
+        return PLUGIN_ERROR;
+
+    ok = viewer_init(file);
+    if (!ok) {
+        rb->splash(HZ, "Error opening file.");
+        return PLUGIN_ERROR;
+    }
+
+    viewer_load_settings(); /* load the preferences and bookmark */
+
+#if LCD_DEPTH > 1
+    rb->lcd_set_backdrop(NULL);
+#endif
+
+    viewer_draw();
+
+    while (!done) {
+
+        if (autoscroll)
+        {
+            if(old_tick <= *rb->current_tick - (110-prefs.autoscroll_speed*10))
+            {
+                viewer_scroll_down(VIEWER_SCROLL_LINE);
+                viewer_draw();
+                old_tick = *rb->current_tick;
+            }
+        }
+
+        button = rb->button_get_w_tmo(HZ/10);
+
+        switch (button) {
+            case VIEWER_MENU:
+#ifdef VIEWER_MENU2
+            case VIEWER_MENU2:
+#endif
+                viewer_menu();
+                break;
+
+            case VIEWER_AUTOSCROLL:
+#ifdef VIEWER_AUTOSCROLL_PRE
+                if (lastbutton != VIEWER_AUTOSCROLL_PRE)
+                    break;
+#endif
+                autoscroll = !autoscroll;
+                break;
+
+            case VIEWER_SCROLL_UP:
+            case VIEWER_SCROLL_UP | BUTTON_REPEAT:
+#ifdef VIEWER_SCROLL_UP2
+            case VIEWER_SCROLL_UP2:
+            case VIEWER_SCROLL_UP2 | BUTTON_REPEAT:
+#endif
+                viewer_scroll_up(VIEWER_SCROLL_PREFS);
+                viewer_draw();
+                old_tick = *rb->current_tick;
+                break;
+
+            case VIEWER_SCROLL_DOWN:
+            case VIEWER_SCROLL_DOWN | BUTTON_REPEAT:
+#ifdef VIEWER_PAGE_DOWN2
+            case VIEWER_SCROLL_DOWN2:
+            case VIEWER_SCROLL_DOWN2 | BUTTON_REPEAT:
+#endif
+                viewer_scroll_down(VIEWER_SCROLL_PREFS);
+                viewer_draw();
+                old_tick = *rb->current_tick;
+                break;
+
+            case VIEWER_SCREEN_LEFT:
+            case VIEWER_SCREEN_LEFT | BUTTON_REPEAT:
+                if (prefs.view_mode == WIDE)
+                {
+                    /* Screen left */
+                    viewer_scroll_left(VIEWER_SCROLL_SCREEN);
+                }
+                else {   /* prefs.view_mode == NARROW */
+                    /* Top of file */
+                    viewer_top();
+                }
+                viewer_draw();
+                break;
+
+            case VIEWER_SCREEN_RIGHT:
+            case VIEWER_SCREEN_RIGHT | BUTTON_REPEAT:
+                if (prefs.view_mode == WIDE)
+                {
+                    /* Screen right */
+                    viewer_scrol_right(VIEWER_SCROLL_SCREEN);
+                }
+                else {   /* prefs.view_mode == NARROW */
+                    /* Bottom of file */
+                    viewer_bottom();
+                }
+                viewer_draw();
+                break;
+
+#ifdef VIEWER_LINE_UP
+            case VIEWER_LINE_UP:
+            case VIEWER_LINE_UP | BUTTON_REPEAT:
+                /* Scroll up one line */
+                viewer_scroll_up(VIEWER_SCROLL_LINE);
+                viewer_draw();
+                old_tick = *rb->current_tick;
+                break;
+
+            case VIEWER_LINE_DOWN:
+            case VIEWER_LINE_DOWN | BUTTON_REPEAT:
+                /* Scroll down one line */
+                viewer_scroll_down(VIEWER_SCROLL_LINE);
+                viewer_draw();
+                old_tick = *rb->current_tick;
+                break;
+#endif
+#ifdef VIEWER_COLUMN_LEFT
+            case VIEWER_COLUMN_LEFT:
+            case VIEWER_COLUMN_LEFT | BUTTON_REPEAT:
+                if (prefs.view_mode == WIDE)
+                {
+                    viewer_scroll_left(VIEWER_SCROLL_COLUMN);
+                    viewer_draw();
+                }
+                break;
+
+            case VIEWER_COLUMN_RIGHT:
+            case VIEWER_COLUMN_RIGHT | BUTTON_REPEAT:
+                if (prefs.view_mode == WIDE)
+                {
+                    viewer_scroll_right(VIEWER_SCROLL_COLUMN);
+                    viewer_draw();
+                }
+                break;
+#endif
+
+#ifdef VIEWER_RC_QUIT
+            case VIEWER_RC_QUIT:
+#endif
+            case VIEWER_QUIT:
+#ifdef VIEWER_QUIT2
+            case VIEWER_QUIT2:
+#endif
+                viewer_exit(NULL);
+                done = true;
+                break;
+
+            case VIEWER_BOOKMARK:
+                viewer_add_remove_bookmark(cpage, cline);
+                viewer_draw();
+                break;
+
+            default:
+                if (rb->default_event_handler_ex(button, viewer_exit, NULL)
+                    == SYS_USB_CONNECTED)
+                    return PLUGIN_USB_CONNECTED;
+                break;
+        }
+        if (button != BUTTON_NONE)
+        {
+            lastbutton = button;
+            rb->yield();
+        }
+    }
+    return PLUGIN_OK;
+}