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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 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/>.
*
*/
#ifndef GUI_WIDGETS_POPUP_H
#define GUI_WIDGETS_POPUP_H
#include "gui/dialog.h"
#include "gui/widget.h"
#include "common/str.h"
#include "common/array.h"
namespace GUI {
/**
* Popup or dropdown widget which, when clicked, "pop up" a list of items and
* lets the user pick on of them.
*
* Implementation wise, when the user selects an item, then the specified command
* is broadcast, with data being equal to the tag value of the selected entry.
*/
class PopUpWidget : public Widget, public CommandSender {
struct Entry {
Common::U32String name;
uint32 tag;
};
typedef Common::Array<Entry> EntryList;
protected:
EntryList _entries;
int _selectedItem;
int _leftPadding;
int _rightPadding;
uint32 _cmd;
public:
PopUpWidget(GuiObject *boss, const Common::String &name, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
PopUpWidget(GuiObject *boss, int x, int y, int w, int h, const Common::U32String &tooltip = Common::U32String(), uint32 cmd = 0);
void handleMouseDown(int x, int y, int button, int clickCount) override;
void handleMouseWheel(int x, int y, int direction) override;
void appendEntry(const Common::U32String &entry, uint32 tag = (uint32)-1);
void appendEntry(const Common::String &entry, uint32 tag = (uint32)-1);
void clearEntries();
int numEntries() { return _entries.size(); }
/** Select the entry at the given index. */
void setSelected(int item);
/** Select the first entry matching the given tag. */
void setSelectedTag(uint32 tag);
int getSelected() const { return _selectedItem; }
uint32 getSelectedTag() const { return (_selectedItem >= 0) ? _entries[_selectedItem].tag : (uint32)-1; }
// const String& getSelectedString() const { return (_selectedItem >= 0) ? _entries[_selectedItem].name : String::emptyString; }
void handleMouseEntered(int button) override { if (_selectedItem != -1) read(_entries[_selectedItem].name); setFlags(WIDGET_HILITED); markAsDirty(); }
void handleMouseLeft(int button) override { clearFlags(WIDGET_HILITED); markAsDirty(); }
void reflowLayout() override;
protected:
void drawWidget() override;
};
/**
* A small dialog showing a list of items and allowing the user to chose one of them
*
* Used by PopUpWidget and DropdownButtonWidget.
*/
class PopUpDialog : public Dialog {
protected:
Widget *_boss;
int _clickX, _clickY;
int _selection;
int _initialSelection;
uint32 _openTime;
bool _twoColumns;
int _entriesPerColumn;
int _leftPadding;
int _rightPadding;
int _lineHeight;
int _lastRead;
typedef Common::Array<Common::U32String> EntryList;
EntryList _entries;
public:
PopUpDialog(Widget *boss, const Common::String &name, int clickX, int clickY);
void open() override;
void reflowLayout() override;
void drawDialog(DrawLayer layerToDraw) override;
void handleMouseUp(int x, int y, int button, int clickCount) override;
void handleMouseWheel(int x, int y, int direction) override; // Scroll through entries with scroll wheel
void handleMouseMoved(int x, int y, int button) override; // Redraw selections depending on mouse position
void handleMouseLeft(int button) override;
void handleKeyDown(Common::KeyState state) override; // Scroll through entries with arrow keys etc.
void setPosition(int x, int y);
void setPadding(int left, int right);
void setLineHeight(int lineHeight);
void setWidth(uint16 width);
void appendEntry(const Common::U32String &entry);
void clearEntries();
void setSelection(int item);
protected:
void drawMenuEntry(int entry, bool hilite);
int findItem(int x, int y) const;
bool isMouseDown();
void moveUp();
void moveDown();
void read(const Common::U32String &str);
};
} // End of namespace GUI
#endif
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