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176 lines
7.4 KiB
176 lines
7.4 KiB
/** @file
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* This file is part of the KDE/KOffice project.
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* Copyright (C) 2005, Gary Cramblitt <garycramblitt@comcast.net>
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*
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* @author Gary Cramblitt <garycramblitt@comcast.net>
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* @since KOffice 1.5
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __KKBDACCESSEXTENSIONS_H__
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#define __KKBDACCESSEXTENSIONS_H__
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// TQt includes.
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#include <tqobject.h>
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// KOffice includes.
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#include <koffice_export.h>
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class KKbdAccessExtensionsPrivate;
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class TQWidgetList;
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class TDEMainWindow;
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/** KKbdAccessExtensions is an object that improves accessibility for motor impaired users
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* who may not be able to easily use a mouse. It adds two new capabilities using the keyboard:
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*
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* - Resizing and positioning of panel widgets derived from TQSplitter and TQDockWindow.
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* - Setting focus to any widget that accepts focus.
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*
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* @section sizing_mode Sizing Mode
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*
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* Users may press F8 or Shift-F8 (defaults) to enter sizing mode. A sizing icon appears on the first
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* TQSplitter or TQDockWindow handle found in the application (F8) or the last such handle (Shift+F8).
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* (A "handle" is the divider bar that appears to the left, right, above, or below each panel
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* of a TQSplitter or TQDockArea.)
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*
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* Once in sizing mode, the following functions are available via the keyboard:
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*
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* - F8 Moves to the next sizing handle. After the last handle, exits sizing mode.
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* - Shift+F8 Moves to the previous sizing handle. After the first handle, exits sizing mode.
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* - Esc Exits sizing mode.
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* - LeftArrow When on a vertical sizing handle, moves the handle to the left.
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* When on a horizontal sizing handle, moves the handle up.
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* - RightArrow When on a vertical sizing handle, moves the handle to the right.
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* When on a horizontal sizing handle, moves the handle down.
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* - UpArrow When on a vertical sizing handle, moves the handle to the left.
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* When on a horizontal sizing handle, moves the handle up.
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* - DownArrow When on a vertical sizing handle, moves the handle to the right.
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* When on a horizontal sizing handle, moves the handle down.
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* - PgUp Like LeftArrow or UpArrow, but moves the handle 5X farther to the left or up.
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* - PgDn Like RightArrow or DownArrow, but moves the handle 5X farther to the right or down.
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* - Enter (On numeric keypad). When on the handle of a TQDockWindow, undocks or docks
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* the widget. Ignored when on the handle of a TQSplitter.
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*
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* The default step size for each arrow key press is 10 pixels.
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*
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* When a TQDockWindow is undocked, the sizing icon appears in the center of the window.
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* The arrow keys and PgUp/PgDn move the undocked window on the screen. Shifted arrow keys
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* and PgUp/PgDn decrease/increase the size of the undocked window.
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*
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* When the sizing icon is on a sizing handle, the mouse may also be used to move the handle
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* without having to click and drag. When moving the mouse while sizing icon is on an undocked
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* TQDockWindow, the window moves with the mouse. Holding Shift down while moving the mouse
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* sizes the TQDockWindow.
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*
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* @note Users can also move and size undocked windows using the Window Operations Menu (Alt+F3).
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*
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* Clicking any mouse button exits sizing mode.
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*
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* When entering sizing mode, the position of the mouse cursor is saved and restored when
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* exiting sizing mode.
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*
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* For a TQSplitter or TQDockWindow to be found, it must be in the kapp::allWidgets() list.
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*
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* @section focus_setting Focus Setting
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*
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* Users can press Alt-F8. A small box appears in the upperleft corner of each visible widget
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* on the screen that can accept focus. Each box is assigned a single letter or digit.
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* User can press the corresponding key to set focus to the widget.
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*
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* At most 36 such shortcuts are possible. If any application shortcuts are single letters
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* or digits, those shortcuts are not in any of the boxes.
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*
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* Clicking any mouse button exits Focus Setting mode.
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*
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* @section notes Notes
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*
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* The F8, Shift+F8, and Alt+F8 keys are TDEShortcuts and therefore user may choose different keys in
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* the application's Configure Shortcuts dialog.
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*
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* @note At present, these shortcuts may not be multi-key. If user sets multi-key
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* shortcuts, they will not work.
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*
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* F8/Shift+F8 are the default shortcuts because these are the keys used for similar
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* functionality in GNOME and Java SWT.
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*/
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class KOFFICECORE_EXPORT KKbdAccessExtensions : public TQObject
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{
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// TODO: A .moc isn't really needed right now, but see TODO in eventFilter method.
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// TQ_PROPERTY(int stepSize READ stepSize WRITE setStepSize)
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public:
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/** Constructor.
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* @param parent TDEMainWindow of the application. Required.
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* @param name (optional) Name of this object.
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*/
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KKbdAccessExtensions(TDEMainWindow* parent, const char* name = 0);
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/** Destructor. */
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virtual ~KKbdAccessExtensions();
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/** Returns number of pixels panel is sized for each arrow key pressed. Default is 10. */
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int stepSize() const;
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/** Sets number of pixels panel is sized for each arrow key pressed. */
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void setStepSize(int s);
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protected:
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/** Event filter installed on kapp object. */
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bool eventFilter( TQObject *o, TQEvent *e );
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/** Retrieves a list of all Splitter and DockArea widgets in the application. */
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TQWidgetList* getAllPanels();
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/** Advances to the next Panel handle. If not currently in resizing mode,
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turns it on. */
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void nextHandle();
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/** Moves to the previous Panel handle. If not currently in resizing mode,
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turns it on. */
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void prevHandle();
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/** Exits Sizing mode. */
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void exitSizing();
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/** Moves panel handle based on key pressed. */
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void resizePanelFromKey(int key, int state);
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/** Moves panel handle based on deltaX and deltaY and state of keyboard modifier keys. */
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void resizePanel(int dx, int dy, int state);
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/** Displays the sizer icon. */
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void showIcon();
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/** Hides the sizer icon. */
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void hideIcon();
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/** Displays the access keys. */
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void displayAccessKeys();
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/** Handles an access keypress. */
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bool handleAccessKey( const TQKeyEvent* ev );
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private:
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KKbdAccessExtensionsPrivate* d;
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};
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/** Provides a way to sort TQLabelss using a TQValueList based on their screen position. */
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class KSortedLabel
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{
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public:
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KSortedLabel(TQLabel* l);
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KSortedLabel(); // default constructor
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bool operator<( KSortedLabel l);
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TQLabel* label() { return m_l; }
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private:
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TQLabel* m_l;
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};
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#endif // __KKBDACCESSEXTENSIONS_H__
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