classicui_plat/notes_api/inc/EIKPROGI.H
changeset 49 31c16e0c5e3e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/classicui_plat/notes_api/inc/EIKPROGI.H	Wed Aug 18 10:02:14 2010 +0300
@@ -0,0 +1,358 @@
+/*
+* Copyright (c) 1997-1999 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:
+*
+*/
+
+
+#if !defined(__EIKPROGI_H__)
+#define __EIKPROGI_H__
+
+#if !defined(__EIKBCTRL_H__)
+#include <eikbctrl.h>
+#endif
+
+#if !defined(__EIKON_HRH__)
+#include <eikon.hrh>
+#endif
+
+class TGulBorder;
+class CEikProgressInfoExtension;
+
+/**
+* Control used to indicate the progress of an operation.
+*
+* Progress consists of a rectangular block that grows during an increment and 
+* shrinks during a decrement. The control can have progress text within the bar 
+* that provides updated information on how far the operation has progressed. 
+* The text can be displayed as either a percentage or a fraction. The bar can 
+* also have a series of invisible splits, or lines. These splits are displayed 
+* by the rectangular blocks as it fills the bar. When the control is in this 
+* mode progress text cannot be used. 
+*
+* This class has an associated @c PROGRESSINFO resource and @c EEikCtProgInfo 
+* control factory identifier.
+*/
+class CEikProgressInfo : public CEikBorderedControl
+	{
+	
+public:
+    
+    /**
+     * Defines the progress control's type.
+     */
+    struct SInfo
+        {
+        /**
+         * The type of text for the progress information control. This can be 
+         * percentage or fraction. See the @c TEikProgressTextType enum.
+         */
+        TEikProgressTextType iTextType;
+
+        /** 
+         * The total number of splits in the progress information control. This
+         * is optional.
+         */
+        TInt iSplitsInBlock;
+
+        /** 
+         * The final value of the progress information control that, when 
+         * reached, indicates completion.
+         */
+        TInt iFinalValue;
+
+        /** The width of the control in pixels. */
+        TInt iWidth;
+    
+        /** The height of the progress information control. */
+        TInt iHeight;
+        };
+
+    /**
+     * Defines the layout and colours for a progress information control.
+     */
+    struct SLayout
+        {
+        /** 
+         * The colour for the part of the control that indicates the progress
+         * that has been made. By default, the value of the @c TLogicalColor 
+         * enum's @c EColorControlHighlightBackground datum.
+         */
+        TRgb iFillColor;
+
+        /**
+         * The colour for sections of the control that indicate the progress yet
+         * to be made. By default, the value of the @c TLogicalColor enum's 
+         * @c EColorControlBackground datum.
+         */
+        TRgb iEmptyColor;
+
+        /**
+         * The colour for the optional progress text that is displayed i.e. 
+         * the filled portion of the control. By default, the value of the 
+         * @c TLogicalColor enum's @c EColorControlHighlightText datum.
+         */
+        TRgb iFillTextColor;
+
+        /**
+         * Optional progress text that appears in the empty portion of the 
+         * control. By default, the value of the @c TLogicalColor enum's 
+         * @c EColorControlText datum.
+         */
+        TRgb iEmptyTextColor;
+
+        /**
+         * The font to use for the optional progress text. By default, the 
+         * environment's normal font.
+         */
+        const CFont* iFont;
+
+        /**
+         * The gap between the blocks in the control that indicate the progress 
+         * made. By default, one pixel.
+         */
+        TInt iGapBetweenBlocks;
+        };
+
+    /**
+     * Destructor.
+     */
+    IMPORT_C ~CEikProgressInfo();
+    
+    /** 
+     * C++ default constructor.
+     */
+    IMPORT_C CEikProgressInfo();
+    
+    /**
+     * Constructs a progress information control using the information held in 
+     * the specified @c SInfo struct. Uses default layout values.
+     *
+     * @param aProgInfo Holds information about the type of progress 
+     *        information control.
+     */
+    IMPORT_C CEikProgressInfo(const SInfo& aProgInfo);
+    
+    /**
+     * Adds the specified increment to the current progress value and, if the 
+     * progress value has increased, redraws the control.
+     *
+     * @param aInc The increment to add to the current progress value.
+     */
+    IMPORT_C void IncrementAndDraw(TInt aInc);
+    
+    /**
+     * Sets the specified value as the new progress value and redraws the 
+     * control if the new value differs from the old value.
+     *
+     * @param aValue The new progress value.
+     */
+    IMPORT_C void SetAndDraw(TInt aValue);
+    
+    /**
+     * From @c CCoeControl.
+     *
+     * Constructs a progress information control from a @c PROGRESSINFO 
+     * resource. Uses default layout values.
+     * 
+     * @param aReader The resource reader to use.
+     */
+    IMPORT_C void ConstructFromResourceL(TResourceReader& aReader);
+    
+    /**
+     * Sets the layout for the control.
+     *
+     * @param aLayout The layout for the control.
+     */
+    IMPORT_C void SetLayout(const SLayout& aLayout);
+    
+    /**
+     * Sets the control's border.
+     *
+     * @param aBorder The control's border.
+     */
+    IMPORT_C void SetBorder(const TGulBorder& aBorder);
+    
+    /**
+     * Sets the final value for the progress information control. This value 
+     * indicates the operation being monitored is complete.
+     *
+     * @param aFinalValue The final value for the progress information control.
+     *        If this is specified as zero, the value is set to one.
+     */
+    IMPORT_C void SetFinalValue(TInt aFinalValue);
+    
+    /**
+     * By default Symbian 2nd phase constructor is private.
+     */
+    IMPORT_C void ConstructL(); // AKNLAF
+
+    /**
+     * Gets a pointer to the information used to define the progress information
+     * control's type.
+     *
+     * @return The information that defines the type of progress 
+     *         information control.
+     */
+    inline const SInfo& Info() const { return(iInfo); }
+    
+    /**
+     * Gets a pointer to the colours and layout of the progress information 
+     * control.
+     *
+     * @return Defines the layout of the control.
+     */
+    inline const SLayout& Layout() const { return(iLayout); }
+    
+    /**
+     * Gets the current value, indicating how far the operation has progressed.
+     *
+     * @return The value for how far the operation has progressed.
+     */
+    inline TInt CurrentValue() const { return(iCurrentValue); }
+
+protected:
+    
+    /**
+     * Evaluates the progress text.
+     *
+     * @param[out] aTextBuf On return, the evaluted text. This is the same
+     *                 as the return value.
+     * @return The evaluated text. Null if progress information is not 
+     *         held as text. A percentage if it is held as a percentage. 
+     *         Otherwise, the current value and final value separated by 
+     *         a slash. Subclassers may wish to use their own buffer.
+     **/
+    IMPORT_C virtual const TDesC* EvaluateText(TDes& aTextBuf) const;
+
+public: // from CCoeControl
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Activates the progress information control.
+     */
+    IMPORT_C void ActivateL();
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Gets the minimum size required to draw the control.
+     *
+     * @return Two-dimensional size as a width and a height value.
+     */
+    IMPORT_C TSize MinimumSize();
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Recalculates the control's size in response to a size change.
+     */
+    IMPORT_C void SizeChanged();
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Gets a list of the logical colours used to draw the control, appended 
+     * to @c aColorUseList.
+     *
+     * @param[out] aColorUseList On return, the colours used to draw 
+     *             the control.
+     */
+    IMPORT_C virtual void GetColorUseListL(
+                                CArrayFix<TCoeColorUse>& aColorUseList) const;
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Handles a change to the control's resources.
+     *
+     * @param aType A message UID value.
+     */
+    IMPORT_C virtual void HandleResourceChange(TInt aType);
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Handles pointer events. This function gets called whenever a pointer
+     * event occurs in the control, i.e. when the pointer is within 
+     * the control's extent, or when the control has grabbed the pointer. 
+     * The control should implement this function to handle pointer events.
+     *
+     * Note: events of type @c EButton1Down are processed before 
+     * @c HandlePointerEventL() is called, in order to transfer keyboard focus 
+     * to the control in which the @c EButton1Down event occurred.
+     * If overriding @c HandlePointerEventL(), the implementation must include 
+     * a base call to @c CCoeControl's @c HandlePointerEventL().
+     *
+     * @param aPointerEvent The pointer event.
+     */
+    IMPORT_C void HandlePointerEventL(const TPointerEvent& aPointerEvent);	
+
+protected: //from CCoeControl
+
+    /**
+     * From @c CCoeControl.
+     *
+     * Writes the internal state of the control and its components to a stream.
+     * This function is empty in release builds. It is intended to be overridden
+     * and base called by subclasses.
+     *
+     * @since App-Framework_6.1
+     * @param aWriteStream The internal state of the control and its components.
+     */
+    IMPORT_C void WriteInternalStateL(RWriteStream& aWriteStream) const;
+
+private: // from CCoeControl
+
+    IMPORT_C void Draw(const TRect& aRect) const;
+    IMPORT_C void Reserved_2();	
+
+private:
+
+    /**
+    * From CAknControl
+    */
+    IMPORT_C void* ExtensionInterface( TUid aInterface );
+
+private: // internal use
+
+	void Construct();
+	void CheckSizeCalculated();
+	void DrawPartial()const; // AKNLAF
+	void DrawProgressBarForeground(CWindowGc& aGc) const; //AKNLAF
+	void DrawProgressBarBackground(CWindowGc& aGc) const; //AKNLAF
+	TInt FilledWidth() const; //AKNLAF
+    
+private:
+
+	SInfo iInfo;
+	SLayout iLayout;
+	TInt iCurrentValue;
+	TBool iHeightWasSupplied;
+	CFbsBitmap* iBitmap; // AKNLAF
+	CFbsBitmap* iBackgroundBitmap; // AKNLAF Not used, extension!
+	CFbsBitmap* iBitmapMask; // AKNLAF
+	//CFbsBitmap* iBackgroundBitmapMask; // AKNLAF
+    CEikProgressInfoExtension* iExtension;
+
+private:
+
+    void LoadBitmapsL();
+    void SetBitmapSizes();
+    void DeleteBitmaps();
+	};
+
+
+#endif  // __EIKPROGI_H__