mirror of
https://github.com/libretro/scummvm.git
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137 lines
4.2 KiB
C++
137 lines
4.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef ENGINES_SAVESTATE_H
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#define ENGINES_SAVESTATE_H
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#include "common/array.h"
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#include "common/hash-str.h"
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#include "common/ptr.h"
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namespace Graphics {
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struct Surface;
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}
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/**
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* A hashmap describing details about a given save state.
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* TODO
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* Guaranteed to contain save_slot and description values.
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* Additional ideas: Playtime, creation date, thumbnail, ...
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*/
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class SaveStateDescriptor : public Common::StringMap {
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protected:
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Common::SharedPtr<Graphics::Surface> _thumbnail; // can be 0
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public:
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SaveStateDescriptor() : _thumbnail() {
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setVal("save_slot", "-1"); // FIXME: default to 0 (first slot) or to -1 (invalid slot) ?
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setVal("description", "");
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}
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SaveStateDescriptor(int s, const Common::String &d) : _thumbnail() {
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char buf[16];
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sprintf(buf, "%d", s);
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setVal("save_slot", buf);
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setVal("description", d);
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}
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SaveStateDescriptor(const Common::String &s, const Common::String &d) : _thumbnail() {
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setVal("save_slot", s);
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setVal("description", d);
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}
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/** The saveslot id, as it would be passed to the "-x" command line switch. */
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Common::String &save_slot() { return getVal("save_slot"); }
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/** The saveslot id, as it would be passed to the "-x" command line switch (read-only variant). */
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const Common::String &save_slot() const { return getVal("save_slot"); }
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/** A human readable description of the save state. */
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Common::String &description() { return getVal("description"); }
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/** A human readable description of the save state (read-only variant). */
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const Common::String &description() const { return getVal("description"); }
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/** Optional entries only included when querying via MetaEngine::querySaveMetaInfo */
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/**
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* Returns the value of a given key as boolean.
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* It accepts 'true', 'yes' and '1' for true and
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* 'false', 'no' and '0' for false.
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* (FIXME:) On unknown value it errors out ScummVM.
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* On unknown key it returns false as default.
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*/
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bool getBool(const Common::String &key) const;
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/**
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* Sets the 'is_deletable' key, which indicates if the
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* given savestate is safe for deletion.
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*/
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void setDeletableFlag(bool state);
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/**
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* Sets the 'is_write_protected' key, which indicates if the
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* given savestate can be overwritten or not
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*/
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void setWriteProtectedFlag(bool state);
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/**
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* Return a thumbnail graphics surface representing the savestate visually.
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* This is usually a scaled down version of the game graphics. The size
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* should be either 160x100 or 160x120 pixels, depending on the aspect
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* ratio of the game. If another ratio is required, contact the core team.
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*/
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const Graphics::Surface *getThumbnail() const { return _thumbnail.get(); }
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/**
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* Set a thumbnail graphics surface representing the savestate visually.
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* Ownership of the surface is transferred to the SaveStateDescriptor.
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* Hence the caller must not delete the surface.
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*/
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void setThumbnail(Graphics::Surface *t);
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/**
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* Sets the 'save_date' key properly, based on the given values.
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*/
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void setSaveDate(int year, int month, int day);
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/**
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* Sets the 'save_time' key properly, based on the given values.
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*/
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void setSaveTime(int hour, int min);
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/**
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* Sets the 'play_time' key properly, based on the given values.
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*/
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void setPlayTime(int hours, int minutes);
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};
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/** List of savestates. */
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typedef Common::Array<SaveStateDescriptor> SaveStateList;
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#endif
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