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104 lines
4.2 KiB
104 lines
4.2 KiB
/*
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* colourcombo.h - colour selection combo box
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* Program: kalarm
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* Copyright © 2001-2003,2005,2006 by David Jarvie <software@astrojar.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef COLOURCOMBO_H
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#define COLOURCOMBO_H
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#include <tqcombobox.h>
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#include "colourlist.h"
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/**
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* @short A colour selection combo box whose colour list can be specified.
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*
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* The ColourCombo class is a combo box allowing the user to select a colour.
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*
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* It is similar to KColorCombo but allows the list of colours to be restricted to those
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* which are specified. The first item in the list is a custom colour entry, which allows
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* the user to define an arbitrary colour. The remaining entries in the list are preset
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* by the program.
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*
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* The widget may be set as read-only. This has the same effect as disabling it, except
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* that its appearance is unchanged.
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*
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* @author David Jarvie <software@astrojar.org.uk>
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*/
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class ColourCombo : public TQComboBox
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{
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Q_OBJECT
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TQ_PROPERTY(TQColor color READ color WRITE setColor)
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public:
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/** Constructor.
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* @param parent The parent object of this widget.
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* @param name The name of this widget.
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* @param defaultColour The colour which is selected by default.
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*/
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explicit ColourCombo(TQWidget* parent = 0, const char* name = 0, const TQColor& defaultColour = 0xFFFFFF);
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/** Returns the selected colour. */
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TQColor color() const { return mSelectedColour; }
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/** Returns the selected colour. */
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TQColor colour() const { return mSelectedColour; }
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/** Sets the selected colour to @p c. */
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void setColor(const TQColor& c) { setColour(c); }
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/** Sets the selected colour to @p c. */
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void setColour(const TQColor& c);
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/** Initialises the list of colours to @p list. */
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void setColours(const ColourList& list);
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/** Returns true if the first entry in the list, i.e. the custom colour, is selected. */
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bool isCustomColour() const { return !currentItem(); }
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/** Returns true if the widget is read only. */
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bool isReadOnly() const { return mReadOnly; }
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/** Sets whether the combo box can be changed by the user.
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* @param readOnly True to set the widget read-only, false to set it read-write.
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*/
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virtual void setReadOnly(bool readOnly);
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signals:
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/** Signal emitted when a new colour has been selected. */
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void activated(const TQColor&); // a new colour box has been selected
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/** Signal emitted when a new colour has been highlighted. */
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void highlighted(const TQColor&); // a new item has been highlighted
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public slots:
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/** Enables or disables the widget. */
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virtual void setEnabled(bool enabled);
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protected:
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virtual void resizeEvent(TQResizeEvent*);
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virtual void mousePressEvent(TQMouseEvent*);
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virtual void mouseReleaseEvent(TQMouseEvent*);
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virtual void mouseMoveEvent(TQMouseEvent*);
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virtual void keyPressEvent(TQKeyEvent*);
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virtual void keyReleaseEvent(TQKeyEvent*);
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private slots:
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void slotActivated(int index);
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void slotHighlighted(int index);
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void slotPreferencesChanged();
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private:
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void addColours();
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void drawCustomItem(TQRect&, bool insert);
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ColourList mColourList; // the sorted colours to display
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TQColor mSelectedColour; // currently selected colour
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TQColor mCustomColour; // current colour of the Custom item
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bool mReadOnly; // value cannot be changed
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bool mDisabled;
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};
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#endif // COLOURCOMBO_H
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