147 lines
4.4 KiB
C++
147 lines
4.4 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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*
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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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*
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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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*/
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#ifndef GUI_WIDGETS_POPUP_H
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#define GUI_WIDGETS_POPUP_H
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#include "gui/dialog.h"
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#include "gui/widget.h"
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#include "common/str.h"
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#include "common/array.h"
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namespace GUI {
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enum {
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kPopUpItemSelectedCmd = 'POPs'
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};
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/**
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* Popup or dropdown widget 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 a kPopUpItemSelectedCmd
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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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class PopUpWidget : public Widget, public CommandSender {
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typedef Common::String String;
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struct Entry {
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String name;
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uint32 tag;
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};
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typedef Common::Array<Entry> EntryList;
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protected:
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EntryList _entries;
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int _selectedItem;
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int _leftPadding;
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int _rightPadding;
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public:
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PopUpWidget(GuiObject *boss, const String &name, const char *tooltip = nullptr);
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PopUpWidget(GuiObject *boss, int x, int y, int w, int h, const char *tooltip = nullptr);
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void handleMouseDown(int x, int y, int button, int clickCount) override;
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void handleMouseWheel(int x, int y, int direction) override;
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void appendEntry(const String &entry, uint32 tag = (uint32)-1);
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void clearEntries();
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int numEntries() { return _entries.size(); }
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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 setSelectedTag(uint32 tag);
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int getSelected() const { return _selectedItem; }
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uint32 getSelectedTag() const { return (_selectedItem >= 0) ? _entries[_selectedItem].tag : (uint32)-1; }
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// const String& getSelectedString() const { return (_selectedItem >= 0) ? _entries[_selectedItem].name : String::emptyString; }
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void handleMouseEntered(int button) override { if (_selectedItem != -1) read(_entries[_selectedItem].name); setFlags(WIDGET_HILITED); markAsDirty(); }
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void handleMouseLeft(int button) override { clearFlags(WIDGET_HILITED); markAsDirty(); }
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void reflowLayout() override;
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protected:
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void drawWidget() override;
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};
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/**
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* A small dialog showing a list of items and allowing the user to chose one of them
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*
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* Used by PopUpWidget and DropdownButtonWidget.
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*/
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class PopUpDialog : public Dialog {
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protected:
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Widget *_boss;
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int _clickX, _clickY;
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int _selection;
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int _initialSelection;
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uint32 _openTime;
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bool _twoColumns;
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int _entriesPerColumn;
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int _leftPadding;
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int _rightPadding;
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int _lineHeight;
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int _lastRead;
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typedef Common::Array<Common::String> EntryList;
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EntryList _entries;
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public:
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PopUpDialog(Widget *boss, const Common::String &name, int clickX, int clickY);
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void open() override;
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void reflowLayout() override;
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void drawDialog(DrawLayer layerToDraw) override;
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void handleMouseUp(int x, int y, int button, int clickCount) override;
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void handleMouseWheel(int x, int y, int direction) override; // Scroll through entries with scroll wheel
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void handleMouseMoved(int x, int y, int button) override; // Redraw selections depending on mouse position
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void handleMouseLeft(int button) override;
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void handleKeyDown(Common::KeyState state) override; // Scroll through entries with arrow keys etc.
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void setPosition(int x, int y);
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void setPadding(int left, int right);
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void setLineHeight(int lineHeight);
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void setWidth(uint16 width);
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void appendEntry(const Common::String &entry);
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void clearEntries();
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void setSelection(int item);
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protected:
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void drawMenuEntry(int entry, bool hilite);
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int findItem(int x, int y) const;
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bool isMouseDown();
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void moveUp();
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void moveDown();
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void read(Common::String);
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};
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} // End of namespace GUI
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#endif
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