diff options
Diffstat (limited to 'Dalos/Hexview.cc')
| -rw-r--r-- | Dalos/Hexview.cc | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/Dalos/Hexview.cc b/Dalos/Hexview.cc new file mode 100644 index 0000000..0b3fc28 --- /dev/null +++ b/Dalos/Hexview.cc @@ -0,0 +1,200 @@ +/*
+ * Dalos
+ * Copyright (C) 2003-2005 Nicolas "Pixel" Noble
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* $Id: Hexview.cc,v 1.1 2004-12-26 03:29:10 pixel Exp $ */
+
+#include <SDL.h>
+
+#include <font.h>
+
+#include "Hexview.h"
+
+void hexview::hexview_keyevent::down(SDL_keysym k) {
+ if (!CurrentHexview || !CurrentHexview->GetVisible()) {
+ if (old_handler)
+ old_handler->down(k);
+ return;
+ }
+ switch (k.sym) {
+ case SDLK_DOWN:
+ CurrentHexview->change_offset(CurrentHexview->get_offset() + CurrentHexview->get_width());
+ break;
+ case SDLK_UP:
+ CurrentHexview->change_offset(CurrentHexview->get_offset() - CurrentHexview->get_width());
+ break;
+ case SDLK_RIGHT:
+ if (KMOD_ALT & k.mod) {
+ CurrentHexview->change_width(CurrentHexview->get_width() + 1);
+ } else if (KMOD_CTRL & k.mod) {
+ CurrentHexview->change_shift(CurrentHexview->get_shift() - 1);
+ } else {
+ CurrentHexview->change_offset(CurrentHexview->get_offset() + 1);
+ }
+ break;
+ case SDLK_LEFT:
+ if (KMOD_ALT & k.mod) {
+ CurrentHexview->change_width(CurrentHexview->get_width() - 1);
+ } else if (KMOD_CTRL & k.mod) {
+ CurrentHexview->change_shift(CurrentHexview->get_shift() + 1);
+ } else {
+ CurrentHexview->change_offset(CurrentHexview->get_offset() - 1);
+ }
+ break;
+ case SDLK_PAGEDOWN:
+ CurrentHexview->change_offset(CurrentHexview->get_offset() + CurrentHexview->get_width() * CurrentHexview->get_nlines());
+ break;
+ case SDLK_PAGEUP:
+ CurrentHexview->change_offset(CurrentHexview->get_offset() - CurrentHexview->get_width() * CurrentHexview->get_nlines());
+ break;
+ case SDLK_HOME:
+ CurrentHexview->change_offset(0);
+ break;
+ case SDLK_END:
+ CurrentHexview->change_offset(CurrentHexview->get_size() - 1);
+ break;
+ default:
+ if (old_handler)
+ old_handler->down(k);
+ return;
+ }
+}
+
+void hexview::hexview_keyevent::up(SDL_keysym k) {
+ if (old_handler)
+ old_handler->up(k);
+}
+
+hexview::hexview(mogltk::shape * sh, mogltk::widget * father) :
+ widget(father, 0, 0, father->GetW(), father->GetH(), 0, "hexview", sh), h(0), width(16), offset(0), offset_loaded(-1), size_loaded(0), data(0), virtual_base(0), shift(0)
+{
+ nlines = GetH() / 13; CurrentHexview = this;
+}
+
+hexview::~hexview() {
+ free(data);
+ CurrentHexview = 0;
+}
+
+void hexview::set_virtual_base(int _virtual_base) {
+ virtual_base = _virtual_base;
+}
+
+int hexview::get_nlines() {
+ return nlines;
+}
+
+int hexview::get_size() {
+ if (!h)
+ return 0;
+ return h->GetSize();
+}
+
+void hexview::change_width(int _width) {
+ if (_width <= 0)
+ _width = 1;
+ if (width != _width) {
+ free(data);
+ width = _width;
+ }
+}
+
+int hexview::get_width() {
+ return width;
+}
+
+void hexview::change_offset(int _offset) {
+ if ((_offset < 0) || !h)
+ _offset = 0;
+ if (h && (_offset >= h->GetSize()))
+ _offset = h->GetSize() - 1;
+ offset = _offset;
+}
+
+int hexview::get_offset() {
+ return offset;
+}
+
+void hexview::change_shift(int _shift) {
+ if (_shift < 0)
+ _shift = 0;
+ shift = _shift;
+}
+
+int hexview::get_shift() {
+ return shift;
+}
+
+void hexview::bind_handle(Handle * _h) {
+ h = _h;
+}
+
+Uint8 * hexview::get_data() {
+ if (!data) {
+ data = (Uint8 *) malloc(nlines * width);
+ }
+
+ if ((offset_loaded == offset) && (size_loaded == (nlines * width)))
+ return data;
+
+ h->seek(offset);
+ h->read(data, nlines * width);
+
+ offset_loaded = offset;
+ size_loaded = nlines * width;
+
+ return data;
+}
+
+void hexview::draw() {
+ int i, max_o, j, k, start_o, l, c;
+
+ if (!h)
+ return;
+
+ get_data();
+
+ mogltk::FixedFont->setcolor(WHITE);
+ mogltk::FixedFont->putcursor(GetAX() - shift * 6, GetAY());
+
+ max_o = min(h->GetSize(), offset + nlines * width);
+
+ for (i = start_o = offset, j = 0, l = 0; i < max_o; i++) {
+ if ((j % width) == 0) {
+ mogltk::FixedFont->printf("%08X ", i + virtual_base);
+ }
+ mogltk::FixedFont->printf("%02X ", data[j]);
+ j++;
+ if ((j % width) == 0) {
+ for (k = start_o, c = 0; k < start_o + width; k++, c++) {
+ mogltk::FixedFont->putcursor(GetAX() + (c + width * 3 + 14 - shift) * 6, GetAY() + l * 13);
+ if (data[j - width + c] >= 0x20)
+ // Have better font support here...
+ mogltk::FixedFont->putentry(data[j - width + c] - 0x20);
+ }
+ l++;
+ mogltk::FixedFont->putcursor(GetAX() - shift * 6, GetAY() + l * 13);
+ start_o = i;
+ }
+ }
+}
+
+void hexview::resize_notify() {
+ nlines = Father()->GetH() / 13;
+ resize(Father()->GetW(), Father()->GetH());
+}
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