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368 lines
13 KiB
368 lines
13 KiB
/*
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This file is part of the KDE project.
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Copyright (C) 2005 Sandro Giessl <sandro@giessl.com>
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#ifndef KCOMMONDECORATION_H
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#define KCOMMONDECORATION_H
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#include <tqbutton.h>
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#include <tqvaluevector.h>
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#include "kdecoration.h"
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class KDecorationBridge;
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class KDecorationFactory;
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enum ButtonType {
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HelpButton=0,
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MaxButton,
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MinButton,
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CloseButton,
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MenuButton,
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OnAllDesktopsButton,
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AboveButton,
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BelowButton,
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ShadeButton,
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NumButtons
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};
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class KCommonDecorationButton;
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class KCommonDecorationButtonPrivate;
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class KCommonDecorationPrivate;
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/**
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* This class eases development of decorations by implementing parts of KDecoration
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* which are error prone and common for most decorations.
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* It takes care of the window layout, button/action handling, and window mask creation.
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*/
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class KWIN_EXPORT KCommonDecoration : public KDecoration
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{
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Q_OBJECT
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public:
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KCommonDecoration(KDecorationBridge* bridge, KDecorationFactory* factory);
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virtual ~KCommonDecoration();
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/**
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* Used to calculate the decoration layout. The basic layout looks like this:
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*
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* Window:
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* _______________________________________________________________
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* | LM_TitleEdgeTop |
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* |_______________________________________________________________|
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* | LM_TitleEdgeLeft | [title] | LM_TitleEdgeRight |
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* |__________________|________________________|___________________|
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* | LM_TitleEdgeBottom |
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* |_______________________________________________________________|
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* | | | |
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* | | | |
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* | | | |
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* |LM_BorderLeft LM_BorderRight|
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* |_|___________________________________________________________|_|
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* | LM_BorderBottom |
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* |_______________________________________________________________|
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*
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* Title:
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* ___________________________________________________________________________________
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* | LM_ButtonMarginTop | | LM_ButtonMarginTop |
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* |________________________________| |_________________________________|
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* | [Buttons] | LM_TitleBorderLeft | LM_TitleHeight | LM_TitleBorderRight | [Buttons] |
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* |___________|____________________|________________|_____________________|___________|
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*
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* Buttons:
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* _____________________________________________________________________________________________
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* | button | spacing | button | spacing | explicit spacer | spacing | ... | spacing | button |
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* |________|_________|________|_________|_________________|_________|________|_________|________|
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*
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* @see layoutMetric()
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*/
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enum LayoutMetric
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{
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LM_BorderLeft,
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LM_BorderRight,
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LM_BorderBottom,
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LM_TitleHeight,
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LM_TitleBorderLeft,
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LM_TitleBorderRight,
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LM_TitleEdgeLeft,
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LM_TitleEdgeRight,
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LM_TitleEdgeTop,
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LM_TitleEdgeBottom,
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LM_ButtonWidth,
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LM_ButtonHeight,
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LM_ButtonSpacing,
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LM_ExplicitButtonSpacer,
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LM_ButtonMarginTop
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};
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enum DecorationBehaviour
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{
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DB_MenuClose, ///< Close window on double clicking the menu
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DB_WindowMask, ///< Set a mask on the window
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DB_ButtonHide ///< Hide buttons when there is not enough space in the titlebar
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};
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enum WindowCorner
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{
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WC_TopLeft,
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WC_TopRight,
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WC_BottomLeft,
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WC_BottomRight
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};
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/**
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* The name of the decoration used in the decoration preview.
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*/
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virtual TQString visibleName() const = 0;
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/**
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* The default title button order on the left.
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* @see KDecoration::titleButtonsLeft()
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* @see KDecoration::titleButtonsRight()
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*/
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virtual TQString defaultButtonsLeft() const = 0;
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/**
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* The default title button order on the left.
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* @see KDecoration::titleButtonsLeft()
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* @see KDecoration::titleButtonsRight()
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*/
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virtual TQString defaultButtonsRight() const = 0;
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/**
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* This controls whether some specific behaviour should be enabled or not.
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* @see DecorationBehaviour
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*/
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virtual bool decorationBehaviour(DecorationBehaviour behaviour) const;
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/**
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* This controls the layout of the decoration in various ways. It is
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* possible to have a different layout for different window states.
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* @param lm The layout element.
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* @param respectWindowState Whether window states should be taken into account or a "default" state should be assumed.
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* @param button For LM_ButtonWidth and LM_ButtonHeight, the button.
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*/
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virtual int layoutMetric(LayoutMetric lm, bool respectWindowState = true, const KCommonDecorationButton *button = 0) const;
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/**
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* Create a new title bar button. KCommonDecoration takes care of memory management.
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* @return a pointer to the button, or 0 if the button should not be created.
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*/
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virtual KCommonDecorationButton *createButton(ButtonType type) = 0;
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/**
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* @return the mask for the specific window corner.
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*/
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virtual TQRegion cornerShape(WindowCorner corner);
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/**
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* This updates the window mask using the information provided by
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* cornerShape(). Edges which are aligned to screen corners are not
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* shaped for better usability (remember to paint these areas in paintEvent(), too).
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* You normally don't want/need to reimplement updateWindowShape().
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* @see cornerShape()
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*/
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virtual void updateWindowShape();
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/**
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* Draw the window decoration.
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*/
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virtual void paintEvent(TQPaintEvent *e) = 0;
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/**
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* This is used to update the painting of the title bar after the caption has been changed.
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* Reimplement for a more efficient implementation (default calls update() on the whole decoration).
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*/
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virtual void updateCaption();
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int buttonsLeftWidth() const;
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int buttonsRightWidth() const;
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/**
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* TODO: remove?
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*/
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void updateLayout() const;
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/**
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* Makes sure all buttons are repainted.
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*/
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void updateButtons() const;
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/**
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* Manually call reset() on each button.
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*/
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void resetButtons() const;
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/**
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* Convenience method.
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* @returns true if the window type is NET::Toolbar, NET::Utility, or NET::Menu
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*/
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bool isToolWindow() const;
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/**
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* Convenience method.
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* @returns the title rect.
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*/
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TQRect titleRect() const;
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public:
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/**
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* Handles widget and layout creation, call the base implementation when subclassing this member.
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*/
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virtual void init();
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/**
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* Handles SettingButtons, call the base implementation when subclassing this member.
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*/
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virtual void reset( unsigned long changed );
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virtual void borders( int& left, int& right, int& top, int& bottom ) const;
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virtual void show();
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virtual void resize(const TQSize& s);
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virtual TQSize minimumSize() const;
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virtual void maximizeChange();
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virtual void desktopChange();
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virtual void shadeChange();
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virtual void iconChange();
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virtual void activeChange();
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virtual void captionChange();
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public slots:
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void keepAboveChange(bool above);
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void keepBelowChange(bool below);
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void slotMaximize();
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void slotShade();
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void slotKeepAbove();
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void slotKeepBelow();
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void menuButtonPressed();
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void menuButtonReleased();
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public:
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virtual Position mousePosition(const TQPoint &point) const;
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virtual bool eventFilter( TQObject* o, TQEvent* e );
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virtual void resizeEvent(TQResizeEvent *e);
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virtual void mouseDoubleClickEvent(TQMouseEvent *e);
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virtual void wheelEvent(TQWheelEvent *e);
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private:
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void resetLayout();
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void moveWidget(int x, int y, TQWidget *widget) const;
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void resizeWidget(int w, int h, TQWidget *widget) const;
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typedef TQValueVector <KCommonDecorationButton*> ButtonContainer; ///< If the entry is 0, it's a spacer.
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int buttonContainerWidth(const ButtonContainer &btnContainer, bool countHidden = false) const;
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void addButtons(ButtonContainer &btnContainer, const TQString& buttons, bool isLeft);
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KCommonDecorationButton *m_button[NumButtons];
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ButtonContainer m_buttonsLeft;
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ButtonContainer m_buttonsRight;
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TQWidget *m_previewWidget;
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// button hiding for small windows
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void calcHiddenButtons();
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int btnHideMinWidth;
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int btnHideLastWidth;
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bool closing; // for menu doubleclick closing...
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KCommonDecorationPrivate *d;
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};
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/**
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* Title bar buttons of KCommonDecoration need to inherit this class.
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*/
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class KWIN_EXPORT KCommonDecorationButton : public QButton
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{
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friend class KCommonDecoration;
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public:
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KCommonDecorationButton(ButtonType type, KCommonDecoration *parent, const char *name);
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virtual ~KCommonDecorationButton();
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/**
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* These flags specify what has changed, e.g. the reason for a reset().
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*/
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enum
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{
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ManualReset = 1 << 0, ///< The button might want to do a full reset for some reason...
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SizeChange = 1 << 1, ///< The button size changed @see setSize()
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ToggleChange = 1 << 2, ///< The button toggle state has changed @see setToggleButton()
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StateChange = 1 << 3, ///< The button has been set pressed or not... @see setOn()
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IconChange = 1 << 4, ///< The window icon has been changed
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DecorationReset = 1 << 5 ///< E.g. when decoration colors have changed
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};
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/**
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* Initialize the button after size change etc.
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*/
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virtual void reset(unsigned long changed) = 0;
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/**
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* @returns the KCommonDecoration the button belongs to.
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*/
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KCommonDecoration *decoration() const;
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/**
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* @returns the button type.
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* @see ButtonType
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*/
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ButtonType type() const;
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/**
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* Whether the button is left of the titlebar or not.
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*/
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bool isLeft() const;
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/**
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* Set which mouse buttons the button should honor. Used e.g. to prevent accidental right mouse clicks.
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*/
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void setRealizeButtons(int btns);
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/**
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* Set the button size.
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*/
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void setSize(const TQSize &s);
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/**
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* Set/update the button's tool tip
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*/
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void setTipText(const TQString &tip);
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/**
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* The mouse button that has been clicked last time.
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*/
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ButtonState lastMousePress() const { return m_lastMouse; }
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TQSize sizeHint() const;
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protected:
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void setToggleButton(bool toggle);
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void setOn(bool on);
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void setLeft(bool left);
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void mousePressEvent(TQMouseEvent *e);
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void mouseReleaseEvent(TQMouseEvent *e);
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private:
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KCommonDecoration *m_decoration;
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ButtonType m_type;
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int m_realizeButtons;
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TQSize m_size;
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ButtonState m_lastMouse;
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bool m_isLeft;
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KCommonDecorationButtonPrivate *d;
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};
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#endif // KCOMMONDECORATION_H
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