Merge pull request #260 from lordhoto/new-chooser.

New save/load chooser

Conflicts:
	gui/saveload.cpp

1 files changed, 881 insertions, 0 deletions

diff --git a/gui/saveload-dialog.cpp b/gui/saveload-dialog.cpp
new file mode 100644
index 0000000000..0b36ff5d59
--- /dev/null
+++ b/gui/saveload-dialog.cpp
@@ -0,0 +1,881 @@
+/* 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.
+ */
+
+#include "gui/saveload-dialog.h"
+#include "common/translation.h"
+#include "common/config-manager.h"
+
+#include "gui/message.h"
+#include "gui/gui-manager.h"
+#include "gui/ThemeEval.h"
+#include "gui/widgets/edittext.h"
+
+#include "graphics/scaler.h"
+
+namespace GUI {
+
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+SaveLoadChooserType getRequestedSaveLoadDialog(const MetaEngine &metaEngine) {
+	const Common::String &userConfig = ConfMan.get("gui_saveload_chooser", Common::ConfigManager::kApplicationDomain);
+	if (g_gui.getWidth() >= 640 && g_gui.getHeight() >= 400
+	    && metaEngine.hasFeature(MetaEngine::kSavesSupportMetaInfo)
+	    && metaEngine.hasFeature(MetaEngine::kSavesSupportThumbnail)
+	    && userConfig.equalsIgnoreCase("grid")) {
+		// In case we are 640x400 or higher, this dialog is not in save mode,
+		// the user requested the grid dialog and the engines supports it we
+		// try to set it up.
+		return kSaveLoadDialogGrid;
+	} else {
+		// In all other cases we want to use the list dialog.
+		return kSaveLoadDialogList;
+	}
+}
+
+enum {
+	kListSwitchCmd = 'LIST',
+	kGridSwitchCmd = 'GRID'
+};
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+
+SaveLoadChooserDialog::SaveLoadChooserDialog(const Common::String &dialogName, const bool saveMode)
+	: Dialog(dialogName), _metaEngine(0), _delSupport(false), _metaInfoSupport(false),
+	_thumbnailSupport(false), _saveDateSupport(false), _playTimeSupport(false), _saveMode(saveMode)
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	, _listButton(0), _gridButton(0)
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+	{
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	addChooserButtons();
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+}
+
+SaveLoadChooserDialog::SaveLoadChooserDialog(int x, int y, int w, int h, const bool saveMode)
+	: Dialog(x, y, w, h), _metaEngine(0), _delSupport(false), _metaInfoSupport(false),
+	_thumbnailSupport(false), _saveDateSupport(false), _playTimeSupport(false), _saveMode(saveMode)
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	, _listButton(0), _gridButton(0)
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+	{
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	addChooserButtons();
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+}
+
+void SaveLoadChooserDialog::open() {
+	Dialog::open();
+
+	// So that quitting ScummVM will not cause the dialog result to say a
+	// savegame was selected.
+	setResult(-1);
+}
+
+int SaveLoadChooserDialog::run(const Common::String &target, const MetaEngine *metaEngine) {
+	_metaEngine = metaEngine;
+	_target = target;
+	_delSupport = _metaEngine->hasFeature(MetaEngine::kSupportsDeleteSave);
+	_metaInfoSupport = _metaEngine->hasFeature(MetaEngine::kSavesSupportMetaInfo);
+	_thumbnailSupport = _metaInfoSupport && _metaEngine->hasFeature(MetaEngine::kSavesSupportThumbnail);
+	_saveDateSupport = _metaInfoSupport && _metaEngine->hasFeature(MetaEngine::kSavesSupportCreationDate);
+	_playTimeSupport = _metaInfoSupport && _metaEngine->hasFeature(MetaEngine::kSavesSupportPlayTime);
+
+	return runIntern();
+}
+
+void SaveLoadChooserDialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	switch (cmd) {
+	case kListSwitchCmd:
+		setResult(kSwitchSaveLoadDialog);
+		// We save the requested dialog type here to avoid the setting to be
+		// overwritten when our reflowLayout logic selects a different dialog
+		// type.
+		ConfMan.set("gui_saveload_chooser", "list", Common::ConfigManager::kApplicationDomain);
+		close();
+		break;
+
+	case kGridSwitchCmd:
+		setResult(kSwitchSaveLoadDialog);
+		// See above.
+		ConfMan.set("gui_saveload_chooser", "grid", Common::ConfigManager::kApplicationDomain);
+		close();
+		break;
+
+	default:
+		break;
+	}
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+
+	return Dialog::handleCommand(sender, cmd, data);
+}
+
+void SaveLoadChooserDialog::reflowLayout() {
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+	addChooserButtons();
+
+	const SaveLoadChooserType currentType = getType();
+	const SaveLoadChooserType requestedType = getRequestedSaveLoadDialog(*_metaEngine);
+
+	// Change the dialog type if there is any need for it.
+	if (requestedType != currentType) {
+		setResult(kSwitchSaveLoadDialog);
+		close();
+	}
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+
+	Dialog::reflowLayout();
+}
+
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+void SaveLoadChooserDialog::addChooserButtons() {
+	if (_listButton) {
+		removeWidget(_listButton);
+		delete _listButton;
+	}
+
+	if (_gridButton) {
+		removeWidget(_gridButton);
+		delete _gridButton;
+	}
+
+	_listButton = createSwitchButton("SaveLoadChooser.ListSwitch", "L", _("List view"), ThemeEngine::kImageList, kListSwitchCmd);
+	_gridButton = createSwitchButton("SaveLoadChooser.GridSwitch", "G", _("Grid view"), ThemeEngine::kImageGrid, kGridSwitchCmd);
+	if (!_metaInfoSupport || !_thumbnailSupport || !(g_gui.getWidth() >= 640 && g_gui.getHeight() >= 400)) {
+		_gridButton->setEnabled(false);
+		_listButton->setEnabled(false);
+	}
+}
+
+ButtonWidget *SaveLoadChooserDialog::createSwitchButton(const Common::String &name, const char *desc, const char *tooltip, const char *image, uint32 cmd) {
+	ButtonWidget *button;
+
+#ifndef DISABLE_FANCY_THEMES
+	if (g_gui.xmlEval()->getVar("Globals.ShowChooserPics") == 1 && g_gui.theme()->supportsImages()) {
+		button = new PicButtonWidget(this, name, tooltip, cmd);
+		((PicButtonWidget *)button)->useThemeTransparency(true);
+		((PicButtonWidget *)button)->setGfx(g_gui.theme()->getImageSurface(image));
+	} else
+#endif
+		button = new ButtonWidget(this, name, desc, tooltip, cmd);
+
+	return button;
+}
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+
+// SaveLoadChooserSimple implementation
+
+enum {
+	kChooseCmd = 'CHOS',
+	kDelCmd = 'DEL '
+};
+
+SaveLoadChooserSimple::SaveLoadChooserSimple(const String &title, const String &buttonLabel, bool saveMode)
+	: SaveLoadChooserDialog("SaveLoadChooser", saveMode), _list(0), _chooseButton(0), _deleteButton(0), _gfxWidget(0)  {
+	_fillR = _fillG = _fillB = 0;
+
+	_backgroundType = ThemeEngine::kDialogBackgroundSpecial;
+
+	new StaticTextWidget(this, "SaveLoadChooser.Title", title);
+
+	// Add choice list
+	_list = new ListWidget(this, "SaveLoadChooser.List");
+	_list->setNumberingMode(kListNumberingZero);
+	_list->setEditable(saveMode);
+
+	_gfxWidget = new GraphicsWidget(this, 0, 0, 10, 10);
+
+	_date = new StaticTextWidget(this, 0, 0, 10, 10, _("No date saved"), Graphics::kTextAlignCenter);
+	_time = new StaticTextWidget(this, 0, 0, 10, 10, _("No time saved"), Graphics::kTextAlignCenter);
+	_playtime = new StaticTextWidget(this, 0, 0, 10, 10, _("No playtime saved"), Graphics::kTextAlignCenter);
+
+	// Buttons
+	new ButtonWidget(this, "SaveLoadChooser.Cancel", _("Cancel"), 0, kCloseCmd);
+	_chooseButton = new ButtonWidget(this, "SaveLoadChooser.Choose", buttonLabel, 0, kChooseCmd);
+	_chooseButton->setEnabled(false);
+
+	_deleteButton = new ButtonWidget(this, "SaveLoadChooser.Delete", _("Delete"), 0, kDelCmd);
+	_deleteButton->setEnabled(false);
+
+	_delSupport = _metaInfoSupport = _thumbnailSupport = false;
+
+	_container = new ContainerWidget(this, 0, 0, 10, 10);
+//	_container->setHints(THEME_HINT_USE_SHADOW);
+}
+
+int SaveLoadChooserSimple::runIntern() {
+	if (_gfxWidget)
+		_gfxWidget->setGfx(0);
+
+	_resultString.clear();
+	reflowLayout();
+	updateSaveList();
+
+	return Dialog::runModal();
+}
+
+const Common::String &SaveLoadChooserSimple::getResultString() const {
+	int selItem = _list->getSelected();
+	return (selItem >= 0) ? _list->getSelectedString() : _resultString;
+}
+
+void SaveLoadChooserSimple::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
+	int selItem = _list->getSelected();
+
+	switch (cmd) {
+	case kListItemActivatedCmd:
+	case kListItemDoubleClickedCmd:
+		if (selItem >= 0 && _chooseButton->isEnabled()) {
+			if (_list->isEditable() || !_list->getSelectedString().empty()) {
+				_list->endEditMode();
+				if (!_saveList.empty()) {
+					setResult(_saveList[selItem].getSaveSlot());
+					_resultString = _list->getSelectedString();
+				}
+				close();
+			}
+		}
+		break;
+	case kChooseCmd:
+		_list->endEditMode();
+		if (!_saveList.empty()) {
+			setResult(_saveList[selItem].getSaveSlot());
+			_resultString = _list->getSelectedString();
+		}
+		close();
+		break;
+	case kListSelectionChangedCmd:
+		updateSelection(true);
+		break;
+	case kDelCmd:
+		if (selItem >= 0 && _delSupport) {
+			MessageDialog alert(_("Do you really want to delete this savegame?"),
+								_("Delete"), _("Cancel"));
+			if (alert.runModal() == kMessageOK) {
+				_metaEngine->removeSaveState(_target.c_str(), _saveList[selItem].getSaveSlot());
+
+				setResult(-1);
+				_list->setSelected(-1);
+
+				updateSaveList();
+				updateSelection(true);
+			}
+		}
+		break;
+	case kCloseCmd:
+		setResult(-1);
+	default:
+		SaveLoadChooserDialog::handleCommand(sender, cmd, data);
+	}
+}
+
+void SaveLoadChooserSimple::reflowLayout() {
+	if (g_gui.xmlEval()->getVar("Globals.SaveLoadChooser.ExtInfo.Visible") == 1 && _thumbnailSupport) {
+		int16 x, y;
+		uint16 w, h;
+
+		if (!g_gui.xmlEval()->getWidgetData("SaveLoadChooser.Thumbnail", x, y, w, h))
+			error("Error when loading position data for Save/Load Thumbnails");
+
+		int thumbW = kThumbnailWidth;
+		int thumbH = kThumbnailHeight2;
+		int thumbX = x + (w >> 1) - (thumbW >> 1);
+		int thumbY = y + kLineHeight;
+
+		int textLines = 0;
+		if (!_saveDateSupport)
+			textLines++;
+		if (!_playTimeSupport)
+			textLines++;
+
+		_container->resize(x, y, w, h - (kLineHeight * textLines));
+		_gfxWidget->resize(thumbX, thumbY, thumbW, thumbH);
+
+		int height = thumbY + thumbH + kLineHeight;
+
+		if (_saveDateSupport) {
+			_date->resize(thumbX, height, kThumbnailWidth, kLineHeight);
+			height += kLineHeight;
+			_time->resize(thumbX, height, kThumbnailWidth, kLineHeight);
+			height += kLineHeight;
+		}
+
+		if (_playTimeSupport)
+			_playtime->resize(thumbX, height, kThumbnailWidth, kLineHeight);
+
+		_container->setVisible(true);
+		_gfxWidget->setVisible(true);
+
+		_date->setVisible(_saveDateSupport);
+		_time->setVisible(_saveDateSupport);
+
+		_playtime->setVisible(_playTimeSupport);
+
+		_fillR = 0;
+		_fillG = 0;
+		_fillB = 0;
+		updateSelection(false);
+	} else {
+		_container->setVisible(false);
+		_gfxWidget->setVisible(false);
+		_date->setVisible(false);
+		_time->setVisible(false);
+		_playtime->setVisible(false);
+	}
+
+	SaveLoadChooserDialog::reflowLayout();
+}
+
+void SaveLoadChooserSimple::updateSelection(bool redraw) {
+	int selItem = _list->getSelected();
+
+	bool isDeletable = _delSupport;
+	bool isWriteProtected = false;
+	bool startEditMode = _list->isEditable();
+
+	_gfxWidget->setGfx(-1, -1, _fillR, _fillG, _fillB);
+	_date->setLabel(_("No date saved"));
+	_time->setLabel(_("No time saved"));
+	_playtime->setLabel(_("No playtime saved"));
+
+	if (selItem >= 0 && _metaInfoSupport) {
+		SaveStateDescriptor desc = _metaEngine->querySaveMetaInfos(_target.c_str(), _saveList[selItem].getSaveSlot());
+
+		isDeletable = desc.getDeletableFlag() && _delSupport;
+		isWriteProtected = desc.getWriteProtectedFlag();
+
+		// Don't allow the user to change the description of write protected games
+		if (isWriteProtected)
+			startEditMode = false;
+
+		if (_thumbnailSupport) {
+			const Graphics::Surface *thumb = desc.getThumbnail();
+			if (thumb) {
+				_gfxWidget->setGfx(thumb);
+				_gfxWidget->useAlpha(256);
+			}
+		}
+
+		if (_saveDateSupport) {
+			const Common::String &saveDate = desc.getSaveDate();
+			if (!saveDate.empty())
+				_date->setLabel(_("Date: ") + saveDate);
+
+			const Common::String &saveTime = desc.getSaveTime();
+			if (!saveTime.empty())
+				_time->setLabel(_("Time: ") + saveTime);
+		}
+
+		if (_playTimeSupport) {
+			const Common::String &playTime = desc.getPlayTime();
+			if (!playTime.empty())
+				_playtime->setLabel(_("Playtime: ") + playTime);
+		}
+	}
+
+
+	if (_list->isEditable()) {
+		// Disable the save button if nothing is selected, or if the selected
+		// game is write protected
+		_chooseButton->setEnabled(selItem >= 0 && !isWriteProtected);
+
+		if (startEditMode) {
+			_list->startEditMode();
+
+			if (_chooseButton->isEnabled() && _list->getSelectedString() == _("Untitled savestate") &&
+					_list->getSelectionColor() == ThemeEngine::kFontColorAlternate) {
+				_list->setEditString("");
+				_list->setEditColor(ThemeEngine::kFontColorNormal);
+			}
+		}
+	} else {
+		// Disable the load button if nothing is selected, or if an empty
+		// list item is selected.
+		_chooseButton->setEnabled(selItem >= 0 && !_list->getSelectedString().empty());
+	}
+
+	// Delete will always be disabled if the engine doesn't support it.
+	_deleteButton->setEnabled(isDeletable && (selItem >= 0) && (!_list->getSelectedString().empty()));
+
+	if (redraw) {
+		_gfxWidget->draw();
+		_date->draw();
+		_time->draw();
+		_playtime->draw();
+		_chooseButton->draw();
+		_deleteButton->draw();
+
+		draw();
+	}
+}
+
+void SaveLoadChooserSimple::close() {
+	_metaEngine = 0;
+	_target.clear();
+	_saveList.clear();
+	_list->setList(StringArray());
+
+	SaveLoadChooserDialog::close();
+}
+
+void SaveLoadChooserSimple::updateSaveList() {
+	_saveList = _metaEngine->listSaves(_target.c_str());
+
+	int curSlot = 0;
+	int saveSlot = 0;
+	StringArray saveNames;
+	ListWidget::ColorList colors;
+	for (SaveStateList::const_iterator x = _saveList.begin(); x != _saveList.end(); ++x) {
+		// Handle gaps in the list of save games
+		saveSlot = x->getSaveSlot();
+		if (curSlot < saveSlot) {
+			while (curSlot < saveSlot) {
+				SaveStateDescriptor dummySave(curSlot, "");
+				_saveList.insert_at(curSlot, dummySave);
+				saveNames.push_back(dummySave.getDescription());
+				colors.push_back(ThemeEngine::kFontColorNormal);
+				curSlot++;
+			}
+
+			// Sync the save list iterator
+			for (x = _saveList.begin(); x != _saveList.end(); ++x) {
+				if (x->getSaveSlot() == saveSlot)
+					break;
+			}
+		}
+
+		// Show "Untitled savestate" for empty/whitespace savegame descriptions
+		Common::String description = x->getDescription();
+		Common::String trimmedDescription = description;
+		trimmedDescription.trim();
+		if (trimmedDescription.empty()) {
+			description = _("Untitled savestate");
+			colors.push_back(ThemeEngine::kFontColorAlternate);
+		} else {
+			colors.push_back(ThemeEngine::kFontColorNormal);
+		}
+
+		saveNames.push_back(description);
+		curSlot++;
+	}
+
+	// Fill the rest of the save slots with empty saves
+
+	int maximumSaveSlots = _metaEngine->getMaximumSaveSlot();
+
+#ifdef __DS__
+	// Low memory on the DS means too many save slots are impractical, so limit
+	// the maximum here.
+	if (maximumSaveSlots > 99) {
+		maximumSaveSlots = 99;
+	}
+#endif
+
+	Common::String emptyDesc;
+	for (int i = curSlot; i <= maximumSaveSlots; i++) {
+		saveNames.push_back(emptyDesc);
+		SaveStateDescriptor dummySave(i, "");
+		_saveList.push_back(dummySave);
+		colors.push_back(ThemeEngine::kFontColorNormal);
+	}
+
+	_list->setList(saveNames, &colors);
+}
+
+// SaveLoadChooserGrid implementation
+
+#ifndef DISABLE_SAVELOADCHOOSER_GRID
+
+enum {
+	kNextCmd = 'NEXT',
+	kPrevCmd = 'PREV',
+	kNewSaveCmd = 'SAVE'
+};
+
+SaveLoadChooserGrid::SaveLoadChooserGrid(const Common::String &title, bool saveMode)
+	: SaveLoadChooserDialog("SaveLoadChooser", saveMode), _lines(0), _columns(0), _entriesPerPage(0),
+	_curPage(0), _newSaveContainer(0), _nextFreeSaveSlot(0), _buttons() {
+	_backgroundType = ThemeEngine::kDialogBackgroundSpecial;
+
+	new StaticTextWidget(this, "SaveLoadChooser.Title", title);
+
+	// Buttons
+	new ButtonWidget(this, "SaveLoadChooser.Delete", _("Cancel"), 0, kCloseCmd);
+	_nextButton = new ButtonWidget(this, "SaveLoadChooser.Choose", _("Next"), 0, kNextCmd);
+	_nextButton->setEnabled(false);
+
+	_prevButton = new ButtonWidget(this, "SaveLoadChooser.Cancel", _("Prev"), 0, kPrevCmd);
+	_prevButton->setEnabled(false);
+
+	// Page display
+	_pageDisplay = new StaticTextWidget(this, "SaveLoadChooser.PageDisplay", Common::String());
+	_pageDisplay->setAlign(Graphics::kTextAlignRight);
+}
+
+SaveLoadChooserGrid::~SaveLoadChooserGrid() {
+	removeWidget(_pageDisplay);
+	delete _pageDisplay;
+}
+
+const Common::String &SaveLoadChooserGrid::getResultString() const {
+	return _resultString;
+}
+
+void SaveLoadChooserGrid::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
+	if (cmd <= _entriesPerPage) {
+		const SaveStateDescriptor &desc = _saveList[cmd - 1 + _curPage * _entriesPerPage];
+
+		if (_saveMode) {
+			_resultString = desc.getDescription();
+		}
+
+		setResult(desc.getSaveSlot());
+		close();
+	}
+
+	switch (cmd) {
+	case kNextCmd:
+		++_curPage;
+		updateSaves();
+		draw();
+		break;
+
+	case kPrevCmd:
+		--_curPage;
+		updateSaves();
+		draw();
+		break;
+
+	case kNewSaveCmd:
+		setResult(_nextFreeSaveSlot);
+		close();
+		break;
+
+	case kCloseCmd:
+		setResult(-1);
+	default:
+		SaveLoadChooserDialog::handleCommand(sender, cmd, data);
+	}
+}
+
+void SaveLoadChooserGrid::handleMouseWheel(int x, int y, int direction) {
+	if (direction > 0) {
+		if (_nextButton->isEnabled()) {
+			++_curPage;
+			updateSaves();
+			draw();
+		}
+	} else {
+		if (_prevButton->isEnabled()) {
+			--_curPage;
+			updateSaves();
+			draw();
+		}
+	}
+}
+
+void SaveLoadChooserGrid::open() {
+	SaveLoadChooserDialog::open();
+
+	_curPage = 0;
+	_saveList = _metaEngine->listSaves(_target.c_str());
+	_resultString.clear();
+
+	// Determine the next free save slot for save mode
+	if (_saveMode) {
+		int lastSlot = -1;
+		_nextFreeSaveSlot = -1;
+		for (SaveStateList::const_iterator x = _saveList.begin(); x != _saveList.end(); ++x) {
+			const int curSlot = x->getSaveSlot();
+
+			// In case there was a gap found use the slot.
+			if (lastSlot + 1 < curSlot) {
+				_nextFreeSaveSlot = lastSlot + 1;
+				break;
+			}
+
+			lastSlot = curSlot;
+		}
+
+		// Use the next available slot otherwise.
+		if (_nextFreeSaveSlot == -1 && lastSlot + 1 < _metaEngine->getMaximumSaveSlot()) {
+			_nextFreeSaveSlot = lastSlot + 1;
+		}
+	}
+
+	updateSaves();
+}
+
+void SaveLoadChooserGrid::reflowLayout() {
+	removeWidget(_pageDisplay);
+	if (g_gui.xmlEval()->getVar("Globals.ShowChooserPageDisplay") == 1) {
+		_pageDisplay->init();
+	}
+
+	SaveLoadChooserDialog::reflowLayout();
+	destroyButtons();
+
+	const uint16 availableWidth = getWidth() - 20;
+	uint16 availableHeight;
+
+	int16 x, y;
+	uint16 w;
+	g_gui.xmlEval()->getWidgetData("SaveLoadChooser.List", x, y, w, availableHeight);
+
+	const int16 buttonWidth = kThumbnailWidth + 6;
+	const int16 buttonHeight = kThumbnailHeight2 + 6;
+
+	const int16 containerFrameWidthAdd = 10;
+	const int16 containerFrameHeightAdd = 0;
+	const int16 containerWidth = buttonWidth + containerFrameWidthAdd;
+	const int16 containerHeight = buttonHeight + kLineHeight + containerFrameHeightAdd;
+
+	const int16 defaultSpacingHorizontal = 4;
+	const int16 defaultSpacingVertical = 8;
+	const int16 slotAreaWidth = containerWidth + defaultSpacingHorizontal;
+	const int16 slotAreaHeight = containerHeight + defaultSpacingVertical;
+
+	const uint oldEntriesPerPage = _entriesPerPage;
+	_columns = MAX<uint>(1, availableWidth / slotAreaWidth);
+	_lines = MAX<uint>(1, availableHeight / slotAreaHeight);
+	_entriesPerPage = _columns * _lines;
+
+	// In save mode the first button is always "New Save", thus we need to
+	// adjust the entries per page here.
+	if (_saveMode) {
+		--_entriesPerPage;
+	}
+
+	// Recalculate the page number
+	if (!_saveList.empty() && oldEntriesPerPage != 0) {
+		if (_entriesPerPage != 0) {
+			_curPage = (_curPage * oldEntriesPerPage) / _entriesPerPage;
+		} else {
+			_curPage = 0;
+		}
+	}
+
+	const uint addX = _columns > 1 ? (availableWidth % slotAreaWidth) / (_columns - 1) : 0;
+	//const uint addY = _lines > 1 ? (availableHeight % slotAreaHeight) / (_lines - 1) : 0;
+
+	_buttons.reserve(_lines * _columns);
+	y += defaultSpacingVertical / 2;
+	for (uint curLine = 0; curLine < _lines; ++curLine, y += slotAreaHeight/* + addY*/) {
+		for (uint curColumn = 0, curX = x + defaultSpacingHorizontal / 2; curColumn < _columns; ++curColumn, curX += slotAreaWidth + addX) {
+			int dstY = containerFrameHeightAdd / 2;
+			int dstX = containerFrameWidthAdd / 2;
+
+			// In the save mode we will always create a new save button as the first button.
+			if (_saveMode && curLine == 0 && curColumn == 0) {
+				_newSaveContainer = new ContainerWidget(this, curX, y, containerWidth, containerHeight);
+				ButtonWidget *newSave = new ButtonWidget(_newSaveContainer, dstX, dstY, buttonWidth, buttonHeight, _("New Save"), _("Create a new save game"), kNewSaveCmd);
+				// In case no more slots are free, we will disable the new save button
+				if (_nextFreeSaveSlot == -1) {
+					newSave->setEnabled(false);
+				}
+				continue;
+			}
+
+			ContainerWidget *container = new ContainerWidget(this, curX, y, containerWidth, containerHeight);
+			container->setVisible(false);
+
+			// Command 0 cannot be used, since it won't be send. Thus we will adjust
+			// command number here, if required. This is only the case for load mode
+			// since for save mode, the first button used is index 1 anyway.
+			uint buttonCmd = curLine * _columns + curColumn;
+			if (!_saveMode) {
+				buttonCmd += 1;
+			}
+	
+			PicButtonWidget *button = new PicButtonWidget(container, dstX, dstY, buttonWidth, buttonHeight, 0, buttonCmd);
+			dstY += buttonHeight;
+
+			StaticTextWidget *description = new StaticTextWidget(container, dstX, dstY, buttonWidth, kLineHeight, Common::String(), Graphics::kTextAlignLeft);
+
+			_buttons.push_back(SlotButton(container, button, description));
+		}
+	}
+
+	if (!_target.empty())
+		updateSaves();
+}
+
+void SaveLoadChooserGrid::close() {
+	SaveLoadChooserDialog::close();
+	hideButtons();
+}
+
+int SaveLoadChooserGrid::runIntern() {
+	int slot;
+	do {
+		const SaveLoadChooserType currentType = getType();
+		const SaveLoadChooserType requestedType = getRequestedSaveLoadDialog(*_metaEngine);
+
+		// Catch resolution changes when the save name dialog was open.
+		if (currentType != requestedType) {
+			setResult(kSwitchSaveLoadDialog);
+			return kSwitchSaveLoadDialog;
+		}
+
+		slot = runModal();
+	} while (_saveMode && slot >= 0 && !selectDescription());
+
+	return slot;
+}
+
+bool SaveLoadChooserGrid::selectDescription() {
+	_savenameDialog.setDescription(_resultString);
+	_savenameDialog.setTargetSlot(getResult());
+	if (_savenameDialog.runModal() == 0) {
+		_resultString = _savenameDialog.getDescription();
+		return true;
+	} else {
+		return false;
+	}
+}
+
+void SaveLoadChooserGrid::destroyButtons() {
+	if (_newSaveContainer) {
+		removeWidget(_newSaveContainer);
+		delete _newSaveContainer;
+		_newSaveContainer = 0;
+	}
+
+	for (ButtonArray::iterator i = _buttons.begin(), end = _buttons.end(); i != end; ++i) {
+		removeWidget(i->container);
+		delete i->container;
+	}
+
+	_buttons.clear();
+}
+
+void SaveLoadChooserGrid::hideButtons() {
+	for (ButtonArray::iterator i = _buttons.begin(), end = _buttons.end(); i != end; ++i) {
+		i->button->setGfx(0);
+		i->setVisible(false);
+	}
+}
+
+void SaveLoadChooserGrid::updateSaves() {
+	hideButtons();
+
+	for (uint i = _curPage * _entriesPerPage, curNum = 0; i < _saveList.size() && curNum < _entriesPerPage; ++i, ++curNum) {
+		const uint saveSlot = _saveList[i].getSaveSlot();
+
+		SaveStateDescriptor desc = _metaEngine->querySaveMetaInfos(_target.c_str(), saveSlot);
+		SlotButton &curButton = _buttons[curNum];
+		curButton.setVisible(true);
+		const Graphics::Surface *thumbnail = desc.getThumbnail();
+		if (thumbnail) {
+			curButton.button->setGfx(desc.getThumbnail());
+		} else {
+			curButton.button->setGfx(kThumbnailWidth, kThumbnailHeight2, 0, 0, 0);
+		}
+		curButton.description->setLabel(Common::String::format("%d. %s", saveSlot, desc.getDescription().c_str()));
+
+		Common::String tooltip(_("Name: "));
+		tooltip += desc.getDescription();
+
+		if (_saveDateSupport) {
+			const Common::String &saveDate = desc.getSaveDate();
+			if (!saveDate.empty()) {
+				tooltip += "\n";
+				tooltip +=  _("Date: ") + saveDate;
+			}
+
+			const Common::String &saveTime = desc.getSaveTime();
+			if (!saveTime.empty()) {
+				tooltip += "\n";
+				tooltip += _("Time: ") + saveTime;
+			}
+		}
+
+		if (_playTimeSupport) {
+			const Common::String &playTime = desc.getPlayTime();
+			if (!playTime.empty()) {
+				tooltip += "\n";
+				tooltip += _("Playtime: ") + playTime;
+			}
+		}
+
+		curButton.button->setTooltip(tooltip);
+
+		// In save mode we disable the button, when it's write protected.
+		// TODO: Maybe we should not display it at all then?
+		if (_saveMode && desc.getWriteProtectedFlag()) {
+			curButton.button->setEnabled(false);
+		} else {
+			curButton.button->setEnabled(true);
+		}
+	}
+
+	const uint numPages = (_entriesPerPage != 0) ? (_saveList.size() / _entriesPerPage + 1) : 1;
+	_pageDisplay->setLabel(Common::String::format("%u/%u", _curPage + 1, numPages));
+
+	if (_curPage > 0)
+		_prevButton->setEnabled(true);
+	else
+		_prevButton->setEnabled(false);
+
+	if ((_curPage + 1) * _entriesPerPage < _saveList.size())
+		_nextButton->setEnabled(true);
+	else
+		_nextButton->setEnabled(false);
+}
+
+SavenameDialog::SavenameDialog()
+	: Dialog("SavenameDialog") {
+	_title = new StaticTextWidget(this, "SavenameDialog.DescriptionText", Common::String());
+
+	new ButtonWidget(this, "SavenameDialog.Cancel", _("Cancel"), 0, kCloseCmd);
+	new ButtonWidget(this, "SavenameDialog.Ok", _("OK"), 0, kOKCmd);
+
+	_description = new EditTextWidget(this, "SavenameDialog.Description", Common::String(), 0, 0, kOKCmd);
+}
+
+void SavenameDialog::setDescription(const Common::String &desc) {
+	_description->setEditString(desc);
+}
+
+const Common::String &SavenameDialog::getDescription() {
+	return _description->getEditString();
+}
+
+void SavenameDialog::open() {
+	Dialog::open();
+	setResult(-1);
+
+	_title->setLabel(Common::String::format(_("Enter a description for slot %d:"), _targetSlot));
+}
+
+void SavenameDialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
+	switch (cmd) {
+	case kOKCmd:
+		setResult(0);
+		close();
+		break;
+
+	default:
+		Dialog::handleCommand(sender, cmd, data);
+	}
+}
+
+#endif // !DISABLE_SAVELOADCHOOSER_GRID
+
+} // End of namespace GUI