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/*
* The Mana Client
* Copyright (C) 2008-2009 The Mana World Development Team
* Copyright (C) 2009-2012 The Mana Developers
*
* This file is part of The Mana Client.
*
* 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 2 of the License, or
* 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 TABLE_H
#define TABLE_H
#include "tablemodel.h"
#include <guichan/keylistener.hpp>
#include <guichan/mouselistener.hpp>
#include <guichan/widget.hpp>
#include <vector>
class GuiTableActionListener;
/**
* A table, with rows and columns made out of sub-widgets. Largely inspired by
* (and can be thought of as a generalisation of) the guichan listbox
* implementation.
*
* Normally you want this within a ScrollArea.
*
* \ingroup GUI
*/
class GuiTable : public gcn::Widget,
public gcn::MouseListener,
public gcn::KeyListener,
public TableModelListener
{
// so that the action listener can call distributeActionEvent
friend class GuiTableActionListener;
public:
GuiTable(TableModel * initial_model = nullptr, gcn::Color background = 0xffffff,
bool opacity = true);
~GuiTable() override;
/**
* Retrieves the active table model
*/
TableModel *getModel() const;
/**
* Sets the table model
*
* Note that actions issued by widgets returned from the model will update
* the table selection, but only AFTER any event handlers installed within
* the widget have been triggered. To be notified after such an update, add
* an action listener to the table instead.
*/
void setModel(TableModel *m);
void setSelected(int row, int column);
int getSelectedRow() const;
int getSelectedColumn() const;
void setSelectedRow(int selected);
void setSelectedColumn(int selected);
bool isWrappingEnabled() const {return mWrappingEnabled;}
void setWrappingEnabled(bool wrappingEnabled)
{mWrappingEnabled = wrappingEnabled;}
gcn::Rectangle getChildrenArea() const;
/**
* Toggle whether to use linewise selection mode, in which the table selects
* an entire line at a time, rather than a single cell.
*
* Note that column information is tracked even in linewise selection mode;
* this mode therefore only affects visualisation.
*
* Disabled by default.
*
* \param linewise: Whether to enable linewise selection mode
*/
void setLinewiseSelection(bool linewise);
// Inherited from Widget
void draw(gcn::Graphics* graphics) override;
virtual gcn::Widget *getWidgetAt(int x, int y) const;
void moveToTop(gcn::Widget *child) override;
void moveToBottom(gcn::Widget *child) override;
void _setFocusHandler(gcn::FocusHandler* focusHandler) override;
// Inherited from KeyListener
void keyPressed(gcn::KeyEvent& keyEvent) override;
/**
* Sets the table to be opaque, that is sets the table
* to display its background.
*
* @param opaque True if the table should be opaque, false otherwise.
*/
virtual void setOpaque(bool opaque) {mOpaque = opaque;}
/**
* Checks if the table is opaque, that is if the table area displays its
* background.
*
* @return True if the table is opaque, false otherwise.
*/
virtual bool isOpaque() const {return mOpaque;}
// Inherited from MouseListener
void mousePressed(gcn::MouseEvent& mouseEvent) override;
void mouseWheelMovedUp(gcn::MouseEvent& mouseEvent) override;
void mouseWheelMovedDown(gcn::MouseEvent& mouseEvent) override;
void mouseDragged(gcn::MouseEvent& mouseEvent) override;
// Constraints inherited from TableModelListener
void modelUpdated(bool) override;
protected:
/** Frees all action listeners on inner widgets. */
virtual void uninstallActionListeners();
/** Installs all action listeners on inner widgets. */
virtual void installActionListeners();
virtual int getRowHeight() const;
virtual int getColumnWidth(int i) const;
private:
int getRowForY(int y) const; // -1 on error
int getColumnForX(int x) const; // -1 on error
void recomputeDimensions();
bool mLinewiseMode;
bool mWrappingEnabled;
bool mOpaque;
static float mAlpha;
/**
* Holds the background color of the table.
*/
gcn::Color mBackgroundColor;
TableModel *mModel;
int mSelectedRow;
int mSelectedColumn;
/** Number of frames to skip upwards when drawing the selected widget. */
int mPopFramesNr;
/** If someone moves a fresh widget to the top, we must display it. */
gcn::Widget *mTopWidget;
/** Vector for compactness; used as a list in practice. */
std::vector<GuiTableActionListener *> mActionListeners;
};
#endif // TABLE_H
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