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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "backends/common/virtual-keyboard-parser.h"
+
+#include "common/keyboard.h"
+#include "graphics/imageman.h"
+#include "common/util.h"
+
+namespace GUI {
+
+VirtualKeyboardParser::VirtualKeyboardParser(VirtualKeyboard *kbd) : XMLParser() {
+ _keyboard = kbd;
+
+ _callbacks["keyboard"] = &VirtualKeyboardParser::parserCallback_Keyboard;
+ _callbacks["mode"] = &VirtualKeyboardParser::parserCallback_Mode;
+ _callbacks["event"] = &VirtualKeyboardParser::parserCallback_Event;
+ _callbacks["layout"] = &VirtualKeyboardParser::parserCallback_Layout;
+ _callbacks["map"] = &VirtualKeyboardParser::parserCallback_Map;
+ _callbacks["area"] = &VirtualKeyboardParser::parserCallback_Area;
+}
+
+bool VirtualKeyboardParser::keyCallback(Common::String keyName) {
+ if (!_callbacks.contains(_activeKey.top()->name))
+ return parserError("%s is not a valid key name.", keyName.c_str());
+
+ return (this->*(_callbacks[_activeKey.top()->name]))();
+}
+
+bool VirtualKeyboardParser::parserCallback_Keyboard() {
+ ParserNode *kbdNode = getActiveNode();
+
+ assert(kbdNode->name == "keyboard");
+
+ if (getParentNode(kbdNode) != 0)
+ return parserError("Keyboard element must be root");
+
+ if (_kbdParsed)
+ return parserError("Only a single keyboard element is allowed");
+ _kbdParsed = true;
+
+ if (!kbdNode->values.contains("initial_mode"))
+ return parserError("Keyboard element must contain initial_mode attribute");
+
+ _initialModeName = kbdNode->values["initial_mode"];
+
+ if (kbdNode->values.contains("h_align")) {
+ Common::String h = kbdNode->values["h_align"];
+ if (h == "left")
+ _keyboard->_hAlignment = VirtualKeyboard::kAlignLeft;
+ else if (h == "centre" || h == "center")
+ _keyboard->_hAlignment = VirtualKeyboard::kAlignCentre;
+ else if (h == "right")
+ _keyboard->_hAlignment = VirtualKeyboard::kAlignRight;
+ }
+
+ if (kbdNode->values.contains("v_align")) {
+ Common::String v = kbdNode->values["h_align"];
+ if (v == "top")
+ _keyboard->_vAlignment = VirtualKeyboard::kAlignTop;
+ else if (v == "middle" || v == "center")
+ _keyboard->_vAlignment = VirtualKeyboard::kAlignMiddle;
+ else if (v == "bottom")
+ _keyboard->_vAlignment = VirtualKeyboard::kAlignBottom;
+ }
+
+ return true;
+}
+
+bool VirtualKeyboardParser::parserCallback_Mode() {
+ ParserNode *modeNode = getActiveNode();
+
+ assert(modeNode->name == "mode");
+
+ if (getParentNode(modeNode) == 0 || getParentNode(modeNode)->name != "keyboard")
+ return parserError("Mode element must be child of keyboard element");
+
+ if (!modeNode->values.contains("name") || !modeNode->values.contains("resolutions"))
+ return parserError("Mode element must contain name and resolutions attributes");
+
+ Common::String name = modeNode->values["name"];
+
+ if (_keyboard->_modes.contains(name))
+ return parserError("Mode '%s' has already been defined", name);
+
+ // create new mode
+ VirtualKeyboard::Mode mode;
+ mode.name = name;
+ _keyboard->_modes[name] = mode;
+ _mode = &(_keyboard->_modes[name]);
+
+ // if this is the keyboard's initial mode
+ // then set it to be the current mode
+ if (name == _initialModeName)
+ _keyboard->_initialMode = _mode;
+
+ Common::String resolutions = modeNode->values["resolutions"];
+ Common::StringTokenizer tok(resolutions, " ,");
+
+ uint16 scrX = g_system->getOverlayWidth(), scrY = g_system->getOverlayHeight();
+ uint32 diff = 0xFFFFFFFF;
+
+ for (Common::String res = tok.nextToken(); res.size() > 0; res = tok.nextToken()) {
+ int resX, resY;
+ if (sscanf(res.c_str(), "%dx%d", &resX, &resY) != 2) {
+ parserError("Invalid resolution specification");
+ } else {
+ if (resX == scrX && resY == scrY) {
+ _mode->resolution = res;
+ break;
+ } else {
+ uint16 newDiff = ABS(scrX - resX) + ABS(scrY - resY);
+ if (newDiff < diff) {
+ diff = newDiff;
+ _mode->resolution = res;
+ }
+ }
+ }
+ }
+
+ if (_mode->resolution.empty())
+ return parserError("No acceptable resolution was found");
+
+ return true;
+}
+
+bool VirtualKeyboardParser::parserCallback_Event() {
+ ParserNode *evtNode = getActiveNode();
+
+ assert(evtNode->name == "event");
+
+ if (getParentNode(evtNode) == 0 || getParentNode(evtNode)->name != "mode")
+ return parserError("Event element must be child of mode element");
+
+ if (!evtNode->values.contains("name") || !evtNode->values.contains("type"))
+ return parserError("Event element must contain name and type attributes");
+
+ assert(_mode);
+
+ Common::String name = evtNode->values["name"];
+ if (_mode->events.contains(name))
+ return parserError("Event '%s' has already been defined", name);
+
+ VirtualKeyboard::Event evt;
+ evt.name = name;
+
+ Common::String type = evtNode->values["type"];
+ if (type == "key") {
+ if (!evtNode->values.contains("code") || !evtNode->values.contains("ascii"))
+ return parserError("Key event element must contain code and ascii attributes");
+
+ evt.type = VirtualKeyboard::kEventKey;
+
+ Common::KeyCode code = (Common::KeyCode)atoi(evtNode->values["code"].c_str());
+ uint16 ascii = atoi(evtNode->values["ascii"].c_str());
+
+ byte flags = 0;
+ if (evtNode->values.contains("flags")) {
+ Common::StringTokenizer tok(evtNode->values["flags"], ", ");
+ for (Common::String fl = tok.nextToken(); !fl.empty(); fl = tok.nextToken()) {
+ if (fl == "ctrl" || fl == "control")
+ flags &= Common::KBD_CTRL;
+ else if (fl == "alt")
+ flags &= Common::KBD_ALT;
+ else if (fl == "shift")
+ flags &= Common::KBD_SHIFT;
+ }
+ }
+
+ evt.data = new Common::KeyState(code, ascii, flags);
+
+ } else if (type == "switch_mode") {
+ if (!evtNode->values.contains("mode"))
+ return parserError("Switch mode event element must contain mode attribute");
+
+ evt.type = VirtualKeyboard::kEventSwitchMode;
+ evt.data = new Common::String(evtNode->values["mode"]);
+ } else
+ return parserError("Event type '%s' not known", type);
+
+ _mode->events[name] = evt;
+
+ return true;
+}
+
+bool VirtualKeyboardParser::parserCallback_Layout() {
+ ParserNode *layoutNode = getActiveNode();
+
+ assert(layoutNode->name == "layout");
+
+ if (getParentNode(layoutNode) == 0 || getParentNode(layoutNode)->name != "mode")
+ return parserError("Layout element must be child of mode element");
+
+ if (!layoutNode->values.contains("resolution") || !layoutNode->values.contains("bitmap"))
+ return parserError("Layout element must contain resolution and bitmap attributes");
+
+ assert(!_mode->resolution.empty());
+
+ Common::String res = layoutNode->values["resolution"];
+
+ if (res != _mode->resolution) {
+ layoutNode->ignore = true;
+ return true;
+ }
+
+ _mode->bitmapName = layoutNode->values["bitmap"];
+
+
+ if (!ImageMan.registerSurface(_mode->bitmapName, 0))
+ return parserError("Error loading bitmap '%s'", _mode->bitmapName.c_str());
+
+ _mode->image = ImageMan.getSurface(_mode->bitmapName);
+ if (!_mode->image)
+ return parserError("Error loading bitmap '%s'", _mode->bitmapName.c_str());
+
+ return true;
+}
+
+bool VirtualKeyboardParser::parserCallback_Map() {
+ ParserNode *mapNode = getActiveNode();
+
+ assert(mapNode->name == "map");
+
+ if (getParentNode(mapNode) == 0 || getParentNode(mapNode)->name != "layout")
+ return parserError("Map element must be child of layout element");
+
+ return true;
+}
+
+bool VirtualKeyboardParser::parserCallback_Area() {
+ ParserNode *areaNode = getActiveNode();
+
+ assert(areaNode->name == "area");
+
+ if (getParentNode(areaNode) == 0 || getParentNode(areaNode)->name != "map")
+ return parserError("Area element must be child of map element");
+
+ if (!areaNode->values.contains("shape") || !areaNode->values.contains("coords") || !areaNode->values.contains("target"))
+ return parserError("Area element must contain shape, coords and target attributes");
+
+ Common::String shape = areaNode->values["shape"];
+ if (shape == "rect") {
+ int x1, y1, x2, y2;
+ if (!parseIntegerKey(areaNode->values["coords"].c_str(), 4, &x1, &y1, &x2, &y2))
+ return parserError("Invalid coords for rect area");
+
+ Common::Rect rect(x1, y1, x2, y2);
+ _mode->imageMap.addRectMapArea(rect, areaNode->values["target"]);
+ } else if (shape == "poly") {
+ Common::StringTokenizer tok (areaNode->values["coords"], ", ");
+ Common::Polygon poly;
+ for (Common::String st = tok.nextToken(); !st.empty(); st = tok.nextToken()) {
+ int x, y;
+ if (sscanf(st.c_str(), "%d", &x) != 1)
+ return parserError("Invalid coords for polygon area");
+ st = tok.nextToken();
+ if (sscanf(st.c_str(), "%d", &y) != 1)
+ return parserError("Invalid coords for polygon area");
+ poly.addPoint(x, y);
+ }
+ if (poly.getPointCount() < 3)
+ return parserError("Invalid coords for polygon area");
+ _mode->imageMap.addPolygonMapArea(poly, areaNode->values["target"]);
+ } else
+ return parserError("Area shape '%s' not known", shape);
+
+ return true;
+}
+
+} // end of namespace GUI