mirror of https://github.com/stella-emu/stella.git
135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2013 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id$
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//
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// Based on code from ScummVM - Scumm Interpreter
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// Copyright (C) 2002-2004 The ScummVM project
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//============================================================================
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#ifndef CONTEXT_MENU_HXX
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#define CONTEXT_MENU_HXX
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#include "bspf.hxx"
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#include "Command.hxx"
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#include "Dialog.hxx"
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/**
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* Popup context menu which, when clicked, "pop up" a list of items and
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* lets the user pick on of them.
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*
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* Implementation wise, when the user selects an item, then the given 'cmd'
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* is broadcast, with data being equal to the tag value of the selected entry.
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*
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* There are also several utility methods (named as sendSelectionXXX) that
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* allow to cycle through the current items without actually opening the dialog.
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*/
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class ContextMenu : public Dialog, public CommandSender
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{
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public:
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enum {
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kItemSelectedCmd = 'CMsl'
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};
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public:
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ContextMenu(GuiObject* boss, const GUI::Font& font,
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const StringMap& items, int cmd = 0);
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virtual ~ContextMenu();
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/** Add the given items to the widget. */
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void addItems(const StringMap& items);
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/** Show context menu onscreen at the specified coordinates */
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void show(uInt32 x, uInt32 y, int item = -1);
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/** Select the entry at the given index. */
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void setSelected(int item);
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/** Select the first entry matching the given tag. */
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void setSelected(const string& tag, const string& defaultTag);
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/** Select the highest/last entry in the internal list. */
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void setSelectedMax();
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/** Clear selection (reset to default). */
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void clearSelection();
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/** Accessor methods for the currently selected item. */
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int getSelected() const;
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const string& getSelectedName() const;
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const string& getSelectedTag() const;
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/** This dialog uses its own positioning, so we override Dialog::center() */
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void center();
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/** The following methods are used when we want to select *and*
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send a command for the new selection. They are only to be used
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when the dialog *isn't* open, and are basically a shortcut so
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that a PopUpWidget has some basic functionality without forcing
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to open its associated ContextMenu. */
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bool sendSelectionUp();
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bool sendSelectionDown();
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bool sendSelectionFirst();
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bool sendSelectionLast();
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protected:
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void handleMouseDown(int x, int y, int button, int clickCount);
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void handleMouseMoved(int x, int y, int button);
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bool handleMouseClicks(int x, int y, int button);
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void handleMouseWheel(int x, int y, int direction);
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void handleKeyDown(StellaKey key, StellaMod mod, char ascii);
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void handleJoyDown(int stick, int button);
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void handleJoyAxis(int stick, int axis, int value);
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bool handleJoyHat(int stick, int hat, int value);
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void handleEvent(Event::Type e);
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void drawDialog();
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private:
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void recalc(const GUI::Rect& image);
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int findItem(int x, int y) const;
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void drawCurrentSelection(int item);
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void moveUp();
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void moveDown();
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void movePgUp();
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void movePgDown();
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void moveToFirst();
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void moveToLast();
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void moveToSelected();
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void scrollUp(int distance = 1);
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void scrollDown(int distance = 1);
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void sendSelection();
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private:
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StringMap _entries;
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int _rowHeight;
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int _firstEntry, _numEntries;
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int _selectedOffset, _selectedItem;
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bool _showScroll;
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bool _isScrolling;
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uInt32 _scrollUpColor, _scrollDnColor;
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const GUI::Font& _font;
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int _cmd;
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uInt32 _xorig, _yorig;
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};
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#endif
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