MCL/sf/mw/classicui: comparison classicui_pub/generic_button

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+:2f259fa3e83a
+/*
+* Copyright (c) 2005-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Button component.
+*
+*/
+#ifndef __AKNBUTTON_H__
+#define __AKNBUTTON_H__
+//  INCLUDES
+#include <AknControl.h>
+#include <AknIconUtils.h>
+#include <AknUtils.h>
+// FORWARD DECLARATIONS
+class CGulIcon;
+class CAknButton;
+class CAknButtonExtension;
+class CAknInfoPopupNoteController;
+class CAknButtonStateExtension;
+class CAknPictographInterface;
+class CAknsFrameBackgroundControlContext;
+class CAknResourceProvider;
+// CLASS DECLARATION
+/**
+*  Class which represents one of the button states.
+*
+*  @lib eikcoctl.lib
+*  @since Series 60 3.1
+*/
+class CAknButtonState : public CBase
+{
+public: // Constructors and destructors
+/**
+* Destructor.
+*/
+IMPORT_C ~CAknButtonState();
+protected: // Constructors and destructors
+/**
+* Constructor.
+*
+* @param aFlags The flags for the button state
+*/
+IMPORT_C CAknButtonState( const TInt aFlags );
+/**
+* Symbian 2nd phase constructor.
+*
+* @param aIcon The icon for the normal state. Takes ownership.
+* @param aDimmedIcon The icon for the dimmed state. Takes ownership.
+* @param aPressedIcon The icon for the pressed down. Takes ownership.
+* @param aHoverIcon The icon for the hover state. Takes ownership.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+*/
+IMPORT_C void ConstructL( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText );
+/**
+* Symbian 2nd phase constructor.
+*
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the normal state icon.
+* @param aMaskId The mask ID for the normal state icon.
+* @param aDimmedBmpId The bitmap ID for the dimmed state icon.
+* @param aDimmedMaskId The mask ID for the dimmed state icon.
+* @param aPressedBmpId The bitmap ID for the pressed down state.
+* @param aPressedMaskId The mask ID for the pressed down state.
+* @param aHoverBmpId The bitmap ID for the hover state icon.
+* @param aHoverMaskId The mask ID for the hover state icon.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aId Item ID of the masked bitmap to be created for skin
+*          specific icon.
+* @param aDimmedId Item ID of the dimmed masked bitmap to be created
+*          for skin specific icon.
+* @param aPressedId Item ID of the pressed masked bitmap to be created
+*          for skin specific icon.
+* @param aHoverId Item ID of the masked hover bitmap to be created
+*          for skin specific icon.
+*/
+IMPORT_C void ConstructL( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TAknsItemID& aId = KAknsIIDNone,
+const TAknsItemID& aDimmedId = KAknsIIDNone,
+const TAknsItemID& aPressedId = KAknsIIDNone,
+const TAknsItemID& aHoverId = KAknsIIDNone );
+public: // New functions
+/**
+* Provides the icon for the normal state.
+*
+* @return The icon for the normal state.
+*/
+IMPORT_C const CGulIcon* Icon() const;
+/**
+* Provides the icon for the dimmed state.
+*
+* @return The icon for the dimmed state.
+*/
+IMPORT_C const CGulIcon* DimmedIcon() const;
+/**
+* Provides the icon for the pressed down (not released) state.
+*
+* @return The icon for the pressed down (not released) state.
+*/
+IMPORT_C const CGulIcon* PressedIcon() const;
+/**
+* Provides the icon for the hover state.
+*
+* @return The icon for the hover state.
+*/
+IMPORT_C const CGulIcon* HoverIcon() const;
+/**
+* Provides the text inside the button.
+*
+* @return The button text.
+*/
+IMPORT_C const TDesC& Text() const;
+/**
+* Provides the text inside the help note.
+*
+* @return The tooltip text.
+*/
+IMPORT_C const TDesC& HelpText() const;
+/**
+* Provides the flags for the state.
+*
+* @return The state flags.
+*/
+IMPORT_C TInt Flags() const;
+/**
+* Sets the icon for the normal state. Takes ownership.
+*
+* @param aIcon The icon for the normal state.
+*/
+IMPORT_C void SetIcon( CGulIcon* aIcon );
+/**
+* Sets the icon for the dimmed state. Takes ownership.
+*
+* @param aDimmedIcon The icon for the dimmed state.
+*/
+IMPORT_C void SetDimmedIcon( CGulIcon* aDimmedIcon );
+/**
+* Sets the icon for the pressed down state. Takes ownership.
+*
+* @param aPressedIcon The icon for the pressed down state.
+*/
+IMPORT_C void SetPressedIcon( CGulIcon* aPressedIcon );
+/**
+* Sets the icon for the hover state. Takes ownership.
+*
+* @param aHoverIcon The icon for the hover state.
+*/
+IMPORT_C void SetHoverIcon( CGulIcon* aHoverIcon );
+/**
+* Sets the text inside the button.
+*
+* @param aText The text inside the button.
+*/
+IMPORT_C void SetTextL( const TDesC& aText );
+/**
+* Sets the text inside the help note.
+*
+* @param aHelpText The text inside the tooltip.
+*/
+IMPORT_C void SetHelpTextL( const TDesC& aHelpText );
+/**
+* Sets the flags for the state.
+*
+* @param aFlags The flags for the state.
+*/
+IMPORT_C void SetFlags( const TInt aFlags );
+/**
+* Sets the icon for the normal state
+*
+* @param aFlags The flags for the state.
+*/
+void UpdateIconL( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TAknsItemID& aId = KAknsIIDNone,
+const TAknsItemID& aDimmedId = KAknsIIDNone,
+const TAknsItemID& aPressedId = KAknsIIDNone,
+const TAknsItemID& aHoverId = KAknsIIDNone );
+protected: // New functions
+/**
+* Constructs controls from a resource file.
+* @param aReader The resource reader with which to access the
+*          control's resource values.
+*/
+IMPORT_C virtual void ConstructFromResourceL( TResourceReader& aReader );
+/**
+* Updates the size of icons. Called from CAknButton::SizeChanged()
+* function.
+*
+* @param aRect The new rectangle for the icons.
+* @param aScaleMode The scale mode which was set for the button.
+*/
+IMPORT_C virtual void SizeChanged( const TRect& aRect,
+TScaleMode aScaleMode );
+/**
+* @return ETrue if the button has valid text (not empty and not space).
+*/
+IMPORT_C TBool HasText() const;
+/**
+* @return ETrue if the button has valid tooltip text (not empty and
+*          not space).
+*/
+IMPORT_C TBool HasHelp() const;
+/**
+* Handles changes in state's environment.
+*
+* @since S60 3.2.
+* @param aType Resource change's type.
+*/
+void HandleResourceChange( TInt aType );
+/**
+* Sets default scaling mode.
+*
+* @since S60 3.2
+* @param aScaleMode Scaling mode.
+*/
+void SetIconScaleMode( const TScaleMode aScaleMode );
+private: // new functions
+/**
+* Creates one icon based on the specified file path and IDs.
+*
+* @param aIcon The icon object which is created and returned.
+*      Will be deleted if it is not NULL on entry.
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the icon.
+* @param aMaskId The mask ID for the icon.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon.
+*/
+void CreateButtonIconL( CGulIcon*& aIcon, const TDesC& aFilePath,
+TInt aBmpId, TInt aMaskId,
+const TAknsItemID& aId = KAknsIIDNone ) const;
+/**
+* Loads one icon based on the specified file path and IDs. If the icon
+* is already loaded it is deleted and replaced with a reloaded copy.
+*
+* @since S60 3.2
+* @param aIcon The icon object which is created and returned.
+*      Will be deleted if it is not NULL on entry.
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the icon.
+* @param aMaskId The mask ID for the icon.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon.
+*/
+void LoadButtonIcon( CGulIcon*& aIcon ) const;
+/**
+* Replaces the given icon with a new one. If the original icon had its
+* size set then the new icon is scaled to that size.
+*
+* @since S60 3.2
+*/
+void ReplaceIcon( CGulIcon*& aIcon, CGulIcon* aNewIcon );
+/**
+* Scales all icons.
+*
+* @since S60 3.2
+* @param aSize New icon size.
+* @param aScaleMode Scaling mode.
+* @return KErrNone or an error code.
+*/
+TInt ScaleIcons( const TSize& aSize, TScaleMode aScaleMode );
+/**
+* @return The extension object.
+*/
+CAknButtonStateExtension* Extension() const;
+/**
+* @return The scalemode of the ButtonState
+*/
+TScaleMode ScaleMode() const;
+/**
+* @param aDimmedIconCreatedByButton ETrue, if the dimmed icon of the state is
+* created by owning Button
+*/
+void SetGeneratedDimmedIcon( TBool aDimmedIconCreatedByButton );
+friend class CAknButton;
+protected: // data
+CGulIcon*   iIcon;                      // bitmaps for normal state
+CGulIcon*   iDimmedIcon;                // bitmaps for dimmed icon
+CGulIcon*   iPressedIcon;               // bitmaps for pressed but not activated state
+CGulIcon*   iHoverIcon;                 // bitmaps for hover icon
+HBufC*      iText;                      // text for normal state
+HBufC*      iHelpText;                  // text which is shown as a help
+TInt        iFlags;                     // flags for the state
+CAknButtonStateExtension* iExtension;   // for future extensions
+};
+// CLASS DECLARATION
+/**
+*  Generic button class.
+*
+*  @lib eikcoctl.lib
+*  @since Series 60 3.1
+*/
+class CAknButton : public CAknControl
+{
+public: // Enumerations
+enum TAlignment
+{
+ECenter, /* align center vertically or horizontally */
+ETop, /* align to top vertically */
+EBottom, /* align to bottom vertically */
+ERight, /* align to right horizontally */
+ELeft /* align to left horixontally */
+};
+enum TTooltipPosition
+{
+EPositionTop = 1, /* Tool tip alignment vertically to top */
+EPositionBottom, /* Tool tip alignment vertically to bottom */
+EPositionLeft, /* Tool tip alignment horizontally to left */
+EPositionRight /* Tool tip alignment horizontally to right */
+};
+enum TTextAndIconAlignment
+{
+EIconBeforeText, /* Icon and text side by side Icon first */
+EIconAfterText,  /* Icon and text side by side Text first */
+EIconUnderText,  /* Icon and text one upon the other Icon under the text */
+EIconOverText,   /* Icon and text one upon the other Icon over the text */
+EOverlay         /* Icon and text overlaid */
+};
+enum TButtonEvent
+{
+ELongPressEvent = 100, /* Observer event for long press event */
+ELongPressEndedEvent   /* Observer event for long press ended event */
+};
+public: // Constructors and destructors
+/**
+* Two-phased constructor.
+* Constructs an empty button.
+*/
+IMPORT_C static CAknButton* NewL();
+/**
+* Two-phased constructor. Constructs an empty button.
+*/
+IMPORT_C static CAknButton* NewLC();
+/**
+* Two-phased constructor. Constructs the button from resources.
+*
+* @param aReader is the resource reader with which to access
+*      the control's resource values.
+*/
+IMPORT_C static CAknButton* NewL( TResourceReader& aReader );
+/**
+* Two-phased constructor. Constructs the button from resources.
+*
+* @param aReader is the resource reader with which to access
+*      the control's resource values.
+*/
+IMPORT_C static CAknButton* NewLC( TResourceReader& aReader );
+/**
+* Two-phased constructor. Constructs the button from resources.
+*
+* @param aResourceId is the ID for this component's resource.
+*/
+IMPORT_C static CAknButton* NewL( const TInt aResourceId );
+/**
+* Two-phased constructor. Constructs the button from resources.
+*
+* @param aResourceId is the ID for this component's resource.
+*/
+IMPORT_C static CAknButton* NewLC( const TInt aResourceId );
+/**
+* Two-phased constructor. Constructs one state button.
+*
+* @param aIcon The icon for the normal state. Takes ownership.
+* @param aDimmedIcon The icon for the dimmed state. Takes ownership.
+* @param aPressedIcon The icon for the pressed down. Takes ownership.
+* @param aHoverIcon The icon for the hover state. Takes ownership.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aButtonFlags The flags for the button.
+* @param aStateFlags The flags for the first state.
+*/
+IMPORT_C static CAknButton* NewL( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aButtonFlags,
+const TInt aStateFlags );
+/**
+* Two-phased constructor. Constructs one state button.
+*
+* @param aIcon The icon for the normal state. Takes ownership.
+* @param aDimmedIcon The icon for the dimmed state. Takes ownership.
+* @param aPressedIcon The icon for the pressed down. Takes ownership.
+* @param aHoverIcon The icon for the hover state. Takes ownership.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aButtonFlags The flags for the button.
+* @param aStateFlags The flags for the first state.
+*/
+IMPORT_C static CAknButton* NewLC( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aFlags,
+const TInt aStateFlags );
+/**
+* Two-phased constructor. Constructs one state button.
+*
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the normal state icon.
+* @param aMaskId The mask ID for the normal state icon.
+* @param aDimmedBmpId The bitmap ID for the dimmed state icon.
+* @param aDimmedMaskId The mask ID for the dimmed state icon.
+* @param aPressedBmpId The bitmap ID for the pressed down state.
+* @param aPressedMaskId The mask ID for the pressed down state.
+* @param aHoverBmpId The bitmap ID for the hover state.
+* @param aHoverMaskId The mask ID for the hover state.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aButtonFlags The flags for the button.
+* @param aStateFlags The flags for the first state.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon.
+* @param aDimmedId Item ID of the dimmed masked bitmap to be created
+*      for skin specific icon.
+* @param aPressedId Item ID of the pressed masked bitmap to be created
+*      for skin specific icon.
+* @param aHoverId Item ID of the masked hover bitmap to be created
+*      for skin specific icon.
+*/
+IMPORT_C static CAknButton* NewL( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aButtonFlags,
+const TInt aStateFlags,
+const TAknsItemID& aId = KAknsIIDNone,
+const TAknsItemID& aDimmedId = KAknsIIDNone,
+const TAknsItemID& aPressedId = KAknsIIDNone,
+const TAknsItemID& aHoverId = KAknsIIDNone );
+/**
+* Two-phased constructor. Constructs one state button.
+*
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the normal state icon.
+* @param aMaskId The mask ID for the normal state icon.
+* @param aDimmedBmpId The bitmap ID for the dimmed state icon.
+* @param aDimmedMaskId The mask ID for the dimmed state icon.
+* @param aPressedBmpId The bitmap ID for the pressed down state.
+* @param aPressedMaskId The mask ID for the pressed down state.
+* @param aHoverBmpId The bitmap ID for the hover state.
+* @param aHoverMaskId The mask ID for the hover state.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aButtonFlags The flags for the button.
+* @param aStateFlags The flags for the first state.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon.
+* @param aDimmedId Item ID of the dimmed masked bitmap to be created
+*      for skin specific icon.
+* @param aPressedId Item ID of the pressed masked bitmap to be created
+*      for skin specific icon.
+* @param aHoverId Item ID of the hover state masked bitmap to be
+*      created for skin specific icon.
+*/
+IMPORT_C static CAknButton* NewLC( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aButtonFlags,
+const TInt aStateFlags,
+const TAknsItemID& aId = KAknsIIDNone,
+const TAknsItemID& aDimmedId = KAknsIIDNone,
+const TAknsItemID& aPressedId = KAknsIIDNone,
+const TAknsItemID& aHoverId = KAknsIIDNone );
+/**
+* Destructor.
+*/
+IMPORT_C virtual ~CAknButton();
+public: // Functions from base class
+/**
+* Sets control as ready to be drawn.
+*/
+IMPORT_C void ActivateL();
+/**
+* Constructs controls from a resource file.
+*
+* @param aReader The resource reader, with which to access the
+*      control's resource values.
+*/
+IMPORT_C void ConstructFromResourceL( TResourceReader& aReader );
+/**
+* Handles a change to the control's resources.
+*
+* @param aType is a message UID value.
+*/
+IMPORT_C void HandleResourceChange( TInt aType );
+/**
+* Returns the control's minimum required size. It does not include the
+* size of the highlight. However, it includes current margins.
+* Use HighlightRect() function to get highlight rectangle for the
+* focused button.
+*
+* @return The minimum size required by the control.
+*/
+IMPORT_C TSize MinimumSize();
+/**
+* Sets button dimmed. Does not redraw the button. Note: This function
+* does not affect the flag set with function CCoeControl::SetDimmed(),
+* since button needs to get pointer events, even if it is dimmed.
+* The value of the flag can be enquired using CAknButotn::IsDimmed().
+*
+* @param aDimmed is ETrue to dim the button, EFalse to set the button
+*      as not dimmed.
+*/
+IMPORT_C void SetDimmed( TBool aDimmed );
+/**
+* Handles key events.
+*
+* @param aKeyEvent The key event.
+* @param aType The type of key event: EEventKey, EEventKeyUp or
+*      EEventKeyDown.
+*/
+IMPORT_C TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,
+TEventCode aType );
+/**
+* Sets this control as visible or invisible.
+*
+* @param aVisible ETrue to make the control visible, EFalse to make
+*      it invisible.
+*/
+IMPORT_C void MakeVisible( TBool aVisible );
+/**
+* This function is called by the dialog framework immediately before
+* it removes keyboard focus from a control within a dialog.
+* Currently has empty implementation.
+*/
+IMPORT_C void PrepareForFocusLossL();
+/**
+* Prepares the control for gaining focus.
+* Must be used before calling SetFocus() function in case when help
+* note should be shown.
+*/
+IMPORT_C void PrepareForFocusGainL();
+/**
+* Handles pointer events.
+*
+* @param aPointerEvent The pointer event.
+*/
+IMPORT_C void HandlePointerEventL( const TPointerEvent& aPointerEvent );
+/**
+* Responds to changes in the position of a control.
+*/
+IMPORT_C virtual void PositionChanged();
+public: // New functions
+/**
+* Constructs controls from a resource file.
+*
+* @param aResourceId The ID for this component's resource.
+*/
+IMPORT_C void ConstructFromResourceL( const TInt aResourceId );
+/**
+* Sets button state.
+*
+* @param aStateIndex The index for the state, starts from 0.
+* @param aDrawNow ETrue to redraw the button.
+*/
+IMPORT_C virtual void SetCurrentState( const TInt aStateIndex,
+const TBool aDrawNow );
+/**
+* Adds one more state for the button to the end of state array.
+*
+* @param aIcon The icon object containing a bitmap and a mask (if
+*      there is one) for the button.
+* @param aDimmedIcon The icon object containing a bitmap and a mask
+*      (if there is one) for the dimmed case.
+* @param aPressedIcon The icon object containing a bitmap and a mask
+*      (if there is one) for the case when button is pressed.
+* @param aHoverIcon The icon object containingg a bitmap and a mask
+*      for the case when the pointer is hovering over the button.
+* @param aText is the text.
+* @param aHelpText is the text for the tooltip.
+* @param aStateFlags The flags for the state.
+*/
+IMPORT_C virtual void AddStateL( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aStateFlags );
+/**
+* Adds one more state for the button.
+*
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the normal state icon.
+* @param aMaskId The mask ID for the normal state icon.
+* @param aDimmedBmpId The bitmap ID for the dimmed state icon.
+* @param aDimmedMaskId The mask ID for the dimmed state icon.
+* @param aPressedBmpId The bitmap ID for the pressed down state.
+* @param aPressedMaskId The mask ID for the pressed down state.
+* @param aHoverBmpId The bitmap ID for the hover state.
+* @param aHoverMaskId The mask ID for the hover state.
+* @param aHoverId Item ID of the hover state masked bitmap to be
+*      created for skin specific icon.
+* @param aText is the text.
+* @param aHelpText is the text for the tooltip.
+* @param aStateFlags The flags for the state.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon. Use KAknsIIDNone when it is not needed.
+* @param aDimmedId Item ID of the dimmed masked bitmap to be created
+*      for skin specific icon. Use KAknsIIDNone when it is not needed.
+* @param aPressedId Item ID of the pressed masked bitmap to be created
+*      for skin specific icon. Use KAknsIIDNone when it is not needed.
+* @param aHoverId Item ID of the hover state masked bitmap to be
+*      created for skin specific icon.
+*/
+IMPORT_C virtual void AddStateL( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aStateFlags,
+const TAknsItemID& aId,
+const TAknsItemID& aDimmedId,
+const TAknsItemID& aPressedId,
+const TAknsItemID& aHoverId );
+/**
+* Adds one more state for the button to the end of state array.
+*
+* @param  aIcon         The icon object containing a bitmap and
+*                       a mask (if there is one) for the button.
+* @param  aDimmedIcon   The icon object containing a bitmap and a mask
+*                       (if there is one) for the dimmed case.
+* @param  aPressedIcon  The icon object containing a bitmap and a mask
+*                       (if there is one) for the case when
+*                       button is pressed.
+* @param  aHoverIcon    The icon object containingg a bitmap and
+*                       a mask for the case when the pointer is
+*                       hovering over the button.
+* @param  aText         is the text.
+* @param  aHelpText     is the text for the tooltip.
+* @param  aStateFlags   The flags for the state.
+* @param  aCommandId    Command to be attached with the state.
+*/
+void AddStateL( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aStateFlags,
+const TInt aCommandId );
+/**
+* Sets the button flags.
+*
+* @param aFlags which can be combination of: KAknButtonTextLeft,
+*      KAknButtonSizeFitText, KAknButtonNoFrame, KAknButtonKeyRepeat,
+*      KAknButtonReportOnKeyDown, KAknButtonNoFramePressEvent,
+*      KAknButtonRequestExitOnButtonUpEvent, KAknButtonReportOnLongPress.
+*/
+IMPORT_C void SetButtonFlags( const TInt aFlags );
+/**
+* Sets specified frame IDs. Can be used when default frame is not
+* suitable. Use KAknsIIDNone value in case when some frame or center
+* drawing is not needed or KAknsIIDDefault when the default button
+* frame should be used.
+*
+* @param aFrameId The item ID of the entire frame.
+* @param aCenterId The item ID of the center part of the frame.
+* @param aLatchedFrameId The item ID of the entire frame for button
+*      in latched state.
+* @param aLatchedCenterId The item ID of the center part of the
+*      frame for button in latched state.
+* @param aDimmedFrameId The item ID of the entire frame for a button
+*      in dimmed state.
+* @param aDimmedCenterId The item ID of the center part of the frame
+*      for a button in dimmed state.
+* @param aPressedFrameId The item ID of the entire frame for a
+*      button in pressed state.
+* @param aPressedCenterId is the item ID of the center part of the
+*      frame for a button in pressed state.
+* @param aLatchedDimmedFrameId The item ID of the entire frame for
+*      a button in latched and dimmed state.
+* @param aLatchedDimmedCenterId The item ID of the center part of
+*      the frame for a button in latched and dimmed state.
+*/
+IMPORT_C void SetFrameAndCenterIds( const TAknsItemID& aFrameId,
+const TAknsItemID& aCenterId,
+const TAknsItemID& aLatchedFrameId,
+const TAknsItemID& aLatchedCenterId,
+const TAknsItemID& aDimmedFrameId,
+const TAknsItemID& aDimmedCenterId,
+const TAknsItemID& aPressedFrameId,
+const TAknsItemID& aPressedCenterId,
+const TAknsItemID& aLatchedDimmedFrameId,
+const TAknsItemID& aLatchedDimmedCenterId );
+/**
+* Sets specified background IDs. Can be used when default frame is not
+* suitable and the backgound is composed of only single image instead
+* of frame and center. SetFrameAndCenterIds() function can also be used
+* for this purpose by giving the same backround ID for both frame and
+* center. This allows also some of the states to be composed of frames
+* and the others from single backgound images. Use KAknsIIDNone value
+* in case when some backgound drawing is not needed or KAknsIIDDefault
+* when the default button frame should be used.
+*
+* @param aBackgroundId The item ID of the entire frame.
+* @param aLatchedBackgroundId The item ID of the background for the
+*      button in latched state.
+* @param aDimmedBackgroundId The item ID of the background for the
+*      button in dimmed state.
+* @param aPressedBackgroundId The item ID of the background for the
+*      button in pressed state.
+* @param aLatchedDimmedBackgroundId The item ID of the background for
+*      the button in latched and dimmed state.
+*/
+IMPORT_C void SetBackgroundIds( const TAknsItemID& aBackgroundId,
+const TAknsItemID& aLatchedBackgroundId,
+const TAknsItemID& aDimmedBackgroundId,
+const TAknsItemID& aPressedBackgroundId,
+const TAknsItemID& aLatchedDimmedBackgroundId );
+/**
+* Sets some specific text font.
+*
+* @param aFont The font, which should be used for the text inside the
+*      text button.
+*/
+IMPORT_C void SetTextFont( const CFont* aFont );
+/**
+* Sets the color table and color index for the button text. It will be
+* used on button drawing, if color of the text shouldn't be taken from
+* text layout.
+*
+* @param aTextColorTableId Id for the color table
+* @param aTextColorIndex Index of the color inside color table.
+*/
+IMPORT_C void SetTextColorIds( const TAknsItemID& aTextColorTableId,
+const TInt aTextColorIndex );
+/**
+* Sets the horizontal alignment for the text inside the button. It
+* will be used, if alignment shouldn't be taken from text layout. By
+* default it will be centered.
+*
+* @param aHorizontalAlignment The horizontal alignment for the text.
+*/
+IMPORT_C void SetTextHorizontalAlignment(
+const CGraphicsContext::TTextAlign aHorizontalAlignment );
+/**
+* Sets the vertical alignment for the text inside the button. It will
+* be used if alignment shouldn't be taken from text layout. By default
+* it will be centered.
+*
+* @param aVerticalAlignment The vertical alignment for the text.
+*/
+IMPORT_C void SetTextVerticalAlignment(
+const CAknButton::TAlignment aVerticalAlignment );
+/**
+* Sets the icon and text alignment for a button having both
+*
+* @param aAlignment. TTextAndIconAlignment
+*/
+IMPORT_C void SetTextAndIconAlignment(
+const CAknButton::TTextAndIconAlignment aAlignment );
+/**
+* Sets the text underline style for the text inside the button. By
+* default no underline is used.
+*
+* @param aUnderlineStyle The style of underline.
+*/
+IMPORT_C void SetTextUnderlineStyle( TFontUnderline aUnderlineStyle );
+/**
+* Sets the scale mode for the icon inside the button.
+* The default is EAspectRatioNotPreserved.
+*
+* @param aScaleMode The scale mode.
+*/
+IMPORT_C void SetIconScaleMode( const TScaleMode aScaleMode );
+/**
+* Sets the horizontal alignment for the icon inside the button.
+* By default it will be centered.
+*
+* @param aHorizontalAlignment The horizontal alignment for the icon.
+*/
+IMPORT_C void SetIconHorizontalAlignment(
+const CAknButton::TAlignment aHorizontalAlignment );
+/**
+* Sets the vertical alignment for the icon inside the button.
+* By default it will be centered.
+*
+* @param aVerticalAlignment The vertical alignment for the icon.
+*/
+IMPORT_C void SetIconVerticalAlignment(
+const CAknButton::TAlignment aVerticalAlignment );
+/**
+* Sets the delay before the help text is shown and also specifies the
+* time for how long help text is visible.
+*
+* @param aBeforeTimeout The delay in milliseconds before text help note
+*      is shown. The default is 150 milliseconds.
+* @param aInViewTimeout The interval in milliseconds during which help
+*      text note is shown. The default is 3000 milliseconds.
+*/
+IMPORT_C void SetHelpNoteTimeouts( const TInt aBeforeTimeout,
+const TInt aInViewTimeout );
+/**
+* Sets the interval for key repeat.
+*
+* @param aKeyRepeatDelay The initial delay, after which the key repeat is
+started. The default is 500 milliseconds.
+* @param aKeyRepeatInterval The interval in milliseconds, in which key
+*      repeat events should be reported. The default is 500 milliseconds.
+*/
+IMPORT_C void SetKeyRepeatInterval( const TInt aKeyRepeatDelay,
+const TInt aKeyRepeatInterval );
+/**
+* Sets the interval for long press. When KAknButtonReportOnLongPress
+* flag is set for the button, button will notify observer with
+* KAknButtonLongPressEvent as the event type, after button has been
+* pressed for the specified time.
+*
+* @param aLongPressInterval The time interval in milliseconds, after
+*      which the long press event should be reported. The default
+*      value is 800 milliseconds.
+*/
+IMPORT_C void SetLongPressInterval( const TInt aLongPressInterval );
+/**
+* Returns the index of the button state.
+*/
+IMPORT_C TInt StateIndex() const;
+/**
+* Enables pictograph drawing in the button text.
+* Only effective in Japanese variant.
+* By default, it is disabled.
+*
+* @param aInterface Used pictograph interface owned by the caller.
+*/
+IMPORT_C void EnablePictographsL( CAknPictographInterface& aInterface );
+/**
+* Disables pictograph drawing in the button text.
+* Only effective in Japanese variant.
+* By default, it is disabled.
+*/
+IMPORT_C void DisablePictographs();
+/**
+* It will change the default highlight rectangle around
+* the focused button.
+*
+* @param aRect The highlight rectangle.
+*/
+IMPORT_C void SetHighlightRect( const TRect& aRect );
+/**
+* Gets the highlight rectangle around the button.
+*
+* @return The higlight rectangle around the button.
+*/
+IMPORT_C TRect HighlightRect() const;
+/**
+* Sets the tooltip position.
+*
+* @param aPosition The position of the tooltip.
+*/
+IMPORT_C void SetTooltipPosition( const TTooltipPosition aPosition );
+/**
+* Sets whether button should send an EEventRequestExit event to command
+* observer on button up event.
+*
+* @param aRequestExit ETrue if button should request exit.
+*/
+IMPORT_C void SetRequestExit( const TBool aRequestExit );
+/**
+* Tests if the control is dimmed. This function overrides the function
+* declared in CCoeControl, and returns the value which is set and unset
+* using CAknButton::SetDimmed().
+*
+* @return ETrue if the control is dimmed, EFalse if it is not dimmed.
+*/
+IMPORT_C TBool IsDimmed() const;
+/**
+* Sets the help text for dimmed button.
+*
+* @param aHelpText The text inside the tooltip.
+*/
+IMPORT_C void SetDimmedHelpTextL( const TDesC& aHelpText );
+/**
+* Check if point is within buttons visible area, when
+* KAknButtonHitTest flag is enabled
+*
+* @param aPoint Location to check.
+* @param aCheckHitArea if need to check the hit area for fixed
+*        toolbar button
+*/
+TBool HitAreaContainsL( const TPoint& aPoint, TBool aCheckHitArea ) const;
+/**
+* Returns the current state of the button.
+*
+* @return the current state of the button
+*/
+IMPORT_C CAknButtonState* State() const;
+/**
+* Returns the state of the button under specified index.
+*
+* @param aStateIndex The index for the state.
+* @return the state of the button.
+*/
+IMPORT_C CAknButtonState* State( const TInt aStateIndex ) const;
+/**
+* Returns the flags of button. The flags are defined in eikon.hrh.
+* @return Button flags.
+* @since S60 3.2
+*/
+IMPORT_C TInt ButtonFlags() const;
+/**
+* Sets button's margins. These define the free area inside the button
+* where content is placed. Note that calling this function overrides
+* default margins that are scaled automatically depending on the
+* current screen layout. If this function is called then the caller
+* is responsible for updating margins whenever the layout changes.
+*
+* @since S60 3.2
+* @param aMargins New marginals.
+*/
+IMPORT_C void SetMargins( const TMargins8& aMargins );
+/**
+* Sets icon size for the button. Calling this function overrides the
+* default size that is scaled automatically depending on the current
+* screen layout. If this function is called then the caller is
+* responsible for updating icon size whenever the layout changes.
+*
+* @since S60 3.2
+* @param aSize New icon size.
+* @return KErrNone if the operation succeeded, otherwise an error code.
+*/
+IMPORT_C TInt SetIconSize( const TSize& aSize );
+/**
+* Checks if the button uses default margins.
+*
+* @since S60 3.2
+*
+* @return ETrue if default margins are used.
+*/
+TBool UsesDefaultMargins() const;
+/**
+* Sets tooltip to hide or show itself when background faded.
+*
+* @since S60 3.2
+* @param aHide should be ETrue if hiding, EFalse if showing
+*/
+void HideTooltipWhenAppFaded( TBool aHide );
+/**
+*/
+void CheckHitArea();
+/**
+* Resets button to unpressed state.
+*
+* @since S60 5.0
+*/
+IMPORT_C void ResetState();
+/**
+* Sets button to use additional masks during drawing. Calling this
+* method forces button to bypass the normal drawing routine i.e.
+* method DrawMaskedL is executed instead of Draw.
+*
+* @since S60 5.0
+* @param aMaskedDraw ETrue to use additional mask.
+*/
+void UseMaskedDraw( TBool aMaskedDraw );
+/**
+* Registers resource provider.
+* @param aProvider New resource provider.
+*/
+void RegisterResourceProvider( CAknResourceProvider* aProvider );
+/**
+* Unregisters resource provider.
+*/
+void UnregisterResourceProvider();
+CAknsFrameBackgroundControlContext* BgContext();
+/**
+* Removes the currently active state from the button,
+* and sets the current state to the previous one.
+*/
+void RemoveCurrentState();
+/**
+* Returns the button touchable area.
+*
+* @since S60 5.0
+* @return Button touch area
+*/
+TRect TouchArea() const;
+protected: // Constructors
+/**
+* C++ constructor for the one state button.
+*
+* @param aFlags The flags for the button
+*/
+IMPORT_C CAknButton( const TInt aFlags );
+/**
+* Symbian 2nd phase constructor.
+*/
+IMPORT_C void ConstructL();
+/**
+* Symbian 2nd phase constructor.
+*
+* @param aIcon The icon for the normal state. Takes ownership.
+* @param aDimmedIcon The icon for the dimmed state. Takes ownership.
+* @param aPressedIcon The icon for the pressed down. Takes ownership.
+* @param aHoverIcon The icon for the hover state.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aStateFlags The flags for the first state.
+*/
+IMPORT_C void ConstructL( CGulIcon* aIcon,
+CGulIcon* aDimmedIcon,
+CGulIcon* aPressedIcon,
+CGulIcon* aHoverIcon,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aStateFlags );
+/**
+* Symbian 2nd phase constructor.
+*
+* @param aFilePath The path to the file which contains icons.
+* @param aBmpId The bitmap ID for the normal state icon.
+* @param aMaskId The mask ID for the normal state icon.
+* @param aDimmedBmpId The bitmap ID for the dimmed state icon.
+* @param aDimmedMaskId The mask ID for the dimmed state icon.
+* @param aPressedBmpId The bitmap ID for the pressed down state.
+* @param aPressedMaskId The mask ID for the pressed down state.
+* @param aHoverBmpId The bitmap ID for the hover state icon.
+* @param aHoverMaskId The mask ID for the hover state icon.
+* @param aText The text inside the button.
+* @param aHelpText The text for the tooltip.
+* @param aStateFlags The flags for the first state.
+* @param aId Item ID of the masked bitmap to be created for skin
+*      specific icon.
+* @param aDimmedId Item ID of the dimmed masked bitmap to be created
+*      for skin specific icon.
+* @param aPressedId Item ID of the pressed masked bitmap to be created
+*      for skin specific icon.
+* @param aHoverId Item ID of the masked hover bitmap to be created
+*      for skin specific icon.
+*/
+IMPORT_C void ConstructL( const TDesC& aFilePath,
+const TInt aBmpId,
+const TInt aMaskId,
+const TInt aDimmedBmpId,
+const TInt aDimmedMaskId,
+const TInt aPressedBmpId,
+const TInt aPressedMaskId,
+const TInt aHoverBmpId,
+const TInt aHoverMaskId,
+const TDesC& aText,
+const TDesC& aHelpText,
+const TInt aStateFlags,
+const TAknsItemID& aId = KAknsIIDNone,
+const TAknsItemID& aDimmedId = KAknsIIDNone,
+const TAknsItemID& aPressedId = KAknsIIDNone,
+const TAknsItemID& aHoverId = KAknsIIDNone );
+protected: // Functions from base class
+/**
+* Responds to size changes to sets the size and position of the
+* contents of this control.
+*/
+IMPORT_C void SizeChanged();
+/**
+* This function is called whenever a control gains or loses focus.
+*
+* @param aDrawNow Contains the value that was passed to it by SetFocus().
+*/
+IMPORT_C void FocusChanged( TDrawNow aDrawNow );
+/**
+* For future extensions
+*
+* @param aInterface The ID for the extension interface.
+*/
+IMPORT_C void* ExtensionInterface( TUid aInterface );
+protected: // New functions
+/**
+* Changes the state of the button to the next one.
+*
+* @return the current state index
+*/
+IMPORT_C TInt ChangeState( TBool aDrawNow );
+/**
+* Returns the text, which will be displayed inside the button
+* for the current state.
+*/
+IMPORT_C const TDesC&  GetCurrentText() const;
+/**
+* Returns icon for the current state.
+*/
+IMPORT_C const CGulIcon* GetCurrentIcon() const;
+/**
+* Shows help text for a certain period of time.
+*/
+IMPORT_C void ShowHelpL();
+/**
+* Hides help text after certain interval.
+*/
+IMPORT_C void HideHelp();
+private: // Functions from base class
+/**
+* From CCoeControl. Draws the control. Called by window server.
+*/
+IMPORT_C void Draw( const TRect& aRect ) const;
+private: // New functions
+/**
+* Continues drawing of the button which has only text.
+*/
+void DrawTextButton( CWindowGc& aGc ) const;
+/**
+* Continues drawing of the button which has only an icon in it.
+*/
+void DrawIconButton( CWindowGc& aGc ) const;
+/**
+* Continues drawing of the button which has both text and icon.
+*/
+void DrawTextAndIconButton( CWindowGc& aGc ) const;
+/**
+* Starts the long press timer.
+*/
+void StartLongPressTimerL();
+/**
+* Stops the long press timer.
+*/
+void StopLongPressTimer();
+/**
+* Starts the timer for the key repeat.
+*/
+void StartKeyRepeatTimerL();
+/**
+* Stops the key repeat timer.
+*/
+void StopKeyRepeatTimer();
+/**
+* Called after timeout is over.
+*/
+static TInt ReportKeyRepeatL( TAny* aThis );
+/**
+* Asserts that extension class object exists.
+*
+* @return Extension object.
+*/
+CAknButtonExtension* Extension() const;
+/**
+* Updates tooltip position.
+*/
+void UpdateTooltipPosition();
+/**
+* Checks whether toolbar should send an EEventRequestExit event to
+* command observe on button up event.
+*
+* @return ETrue if event should be sent, EFalse otherwise.
+*/
+TBool RequestExit() const;
+/**
+* Gets the rectangele reserved for button content excluding frame.
+*
+* @return Content rectangle.
+*/
+TRect ContentRect() const;
+/**
+* Checks whether button needs redrawing when it is pressed or released.
+*
+* @return ETrue, if redraw is needed, othewise EFalse.
+*/
+TBool NeedsRedrawWhenPressed() const;
+/**
+* Returns the ID of specified skin item.
+*/
+TAknsItemID SkinIID( const TInt aIndex ) const;
+/**
+* Calculates default margins.
+*/
+void CalculateDefaultMargins();
+/**
+* Scales all icons.
+*
+* @return KErrNone or an error code.
+*/
+TInt ScaleIcons();
+/**
+* Gets the correct text color.
+*
+* @return Text color.
+*/
+TRgb TextColor() const;
+/**
+* Generates the pressed down bitmaps
+* if flag KAknButtonPressedDownFrame is set and button has no frame
+*/
+void CreatePressedDownFrameL();
+/**
+* Calculates color's luminance.
+*/
+TInt CalculateLuminance( const TRgb& aColor ) const;
+/**
+* Converts outline color, if fill color is too similar to outline color
+*
+* @aFillColor fill color
+* @aOutlineColor outline color
+*/
+void ConvertColorsForOutlineEffect( TRgb& aFillColor, TRgb& aOutlineColor ) const;
+/**
+* Gets text colors
+*
+* @aPenColor pen color
+* @aBrushColor brush color
+*/
+void GetTextColors( TRgb& aPenColor, TRgb& aBrushColor ) const;
+/**
+* Sets new state index
+*
+* @param aNewIndex New state index
+*/
+void SetStateIndexL( TInt aNewIndex );
+protected: // Data
+// array to keep states
+CArrayPtrFlat<CAknButtonState>* iStates;
+// button flags
+TInt iFlags;
+// current button state index
+TInt iStateIndex;
+// flag to define whether the button is pressed
+TBool iButtonPressed;
+// number of drag events, needed to distinguish when it is outside
+// the button.
+TInt iNumberOfDragEvents;
+// Flag which shows whether key down event was reported before key up
+// event was sent to the button, because some controls consume key down
+// but don't consume key up events which might cause of button state
+// when it is not expected
+TBool iKeyDownReported;
+// Background control context for button's frame
+CAknsFrameBackgroundControlContext* iBgContext;
+// Customized highlight rectangular around the button if the default one
+// won't be used
+TRect iHighlightRect;
+// text button specific data
+const CFont*                    iFont;                // font for the text inside the button
+TAlignment                      iVerticalAlignment;   // vertical alignment for the text. Centered by default
+CGraphicsContext::TTextAlign    iHorizontalAlignment; // horizontal alignment for the text. Centered by default
+TAknsItemID                     iTextColorTableId;    // id for the color table
+TInt                            iTextColorIndex;      // index of the color in color table
+// icon button specific data
+TScaleMode  iScaleMode; // scale mode for the icon, by default it is EAspectRatioNotPreserved
+// tooltip specific data
+TInt        iHelpNoteWaitInterval;         // interval in milliseconds between the time when the button got focused and the help text is shown
+TInt        iHelpNoteInViewInterval;       // interval during which help text is shown in milliseconds
+CAknInfoPopupNoteController* iHelpNote;    // component to show help text
+HBufC*      iDimmedHelpText;               // help text in case if the button is dimmed, not used currently
+TBool       iShowHelp;                     // flag which specifies whether help note should be shown
+// Key repeat handling
+CPeriodic* iKeyRepeatTimer; // timer to report key repeats
+TInt iKeyRepeatDelay;       // initial delay for key repeats
+TInt iKeyRepeatInterval;    // time interval for key repeats
+private:
+CAknButtonExtension* iExtension;
+};
+#endif // __AKNBUTTON_H__
+// End of File

changeset 0	2f259fa3e83a
child 5	aabf2c525e0f