dialog.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * Based on
 * WebVenture (c) 2010, Sean Kasun
 * https://github.com/mrkite/webventure, http://seancode.com/webventure/
 *
 * Used with explicit permission from the author
 */

#ifndef MACVENTURE_DIALOG_H
#define MACVENTURE_DIALOG_H

#include "graphics/macgui/macwindowmanager.h"

#include "macventure/macventure.h"
#include "macventure/prebuilt_dialogs.h"

namespace Graphics {
class MacText;
}

namespace MacVenture {

using namespace Graphics::MacGUIConstants;
class Gui;
class DialogElement;

class Dialog {
public:
    Dialog(Gui *gui, Common::MacResManager *resourceManager, uint16 resID);
    Dialog(Gui *gui, Common::Point pos, uint width, uint height);
    Dialog(Gui *gui, PrebuiltDialogs prebuilt, const Common::String &title);

    ~Dialog();

    bool processEvent(Common::Event event);
    void draw();
    void localize(Common::Point &point);
    void handleDialogAction(DialogElement *trigger, DialogAction action);

    Graphics::MacWindowManager *getMacWindowManager() const;
    const Graphics::Font &getFont();

    void addButton(Common::String title, DialogAction action, Common::Point position, uint width = 0, uint height = 0);
    void addText(Common::String content, Common::Point position, int width = 0, int height = 0, Graphics::TextAlign alignment = Graphics::kTextAlignLeft);
    void addTextInput(Common::Point position, int width, int height, Graphics::TextAlign alignment = Graphics::kTextAlignLeft);

    void setUserInput(Common::String content);
    DialogElement *getElement(Common::String elementID);

private:
    void addPrebuiltElement(const PrebuiltDialogElement &element, const Common::String &title = "");

    void calculateBoundsFromPrebuilt(const PrebuiltDialogBounds &bounds);

private:
    Gui *_gui;
    Graphics::MacWindowManager *_wm;

    Common::String _userInput;
    Common::Array<DialogElement*> _elements;
    Common::Rect _bounds;
};

class DialogElement {
public:
    DialogElement(Dialog *dialog, Common::String title, DialogAction action, Common::Point position, uint width = 0, uint height = 0, Graphics::TextAlign alignment = Graphics::kTextAlignLeft);
    virtual ~DialogElement() {}

    bool processEvent(Dialog *dialog, Common::Event event);
    void draw(MacVenture::Dialog *dialog, Graphics::ManagedSurface &target);
    const Common::String &getText();

    void setAction(DialogAction action) { _action = action; }

private:
    virtual bool doProcessEvent(Dialog *dialog, Common::Event event) = 0;
    virtual void doDraw(MacVenture::Dialog *dialog, Graphics::ManagedSurface &target) = 0;
    virtual const Common::String &doGetText();

protected:
    Common::String _text;
    Graphics::MacText *_macText;
    Common::Rect _bounds;
    DialogAction _action;
};

// Dialog elements
class DialogButton : public DialogElement {
public:
    DialogButton(Dialog *dialog, Common::String title, DialogAction action, Common::Point position, uint width = 0, uint height = 0);
    ~DialogButton() override {}

private:
    bool doProcessEvent(Dialog *dialog, Common::Event event) override;
    void doDraw(MacVenture::Dialog *dialog, Graphics::ManagedSurface &target) override;
};

class DialogPlainText : public DialogElement {
public:
    DialogPlainText(Dialog *dialog, Common::String content, Common::Point position, int width, int height, Graphics::TextAlign alignment = Graphics::kTextAlignLeft);
    ~DialogPlainText() override;

private:
    bool doProcessEvent(Dialog *dialog, Common::Event event) override;
    void doDraw(MacVenture::Dialog *dialog, Graphics::ManagedSurface &target) override;
};

class DialogTextInput : public DialogElement {
public:
    DialogTextInput(Dialog *dialog, Gui *gui, Common::Point position, uint width, uint height, Graphics::TextAlign alignment = Graphics::kTextAlignLeft);
    ~DialogTextInput() override;

    void updateCursorPos();
    void undrawCursor();

    Common::Point _cursorPos;
    bool _cursorState;
    bool _cursorDirty;

private:
    bool doProcessEvent(Dialog *dialog, Common::Event event) override;
    void doDraw(MacVenture::Dialog *dialog, Graphics::ManagedSurface &target) override;

    int getCursorHeight() const;

    Gui *_gui;

    Common::Rect _cursorRect;
    Graphics::ManagedSurface *_cursorSurface;
};

} // End of namespace MacVenture

#endif