author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 21 Jun 2010 15:32:50 +0300 | |
branch | RCL_3 |
changeset 46 | 4376525cdefb |
parent 25 | 9ac0a0a7da70 |
child 59 | e5618cc85d74 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: CMIDCanvasGraphicsItem - Implements the native part Canvas Graphics Item class. |
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* |
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*/ |
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#ifndef CMIDCANVASGRAPHICSITEM_H |
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#define CMIDCANVASGRAPHICSITEM_H |
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// EXTERNAL INCLUDES |
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#include <e32base.h> |
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// INTERNAL INCLUDES |
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#include <MMIDCanvasGraphicsItem.h> |
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#include <MMIDCustomComponent.h> |
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#include <MMIDScalable.h> |
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// FORWARD DECLARATIONS |
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class CMIDCanvasGraphicsItemPainter; |
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class CCoeControl; |
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class MMIDCustomComponentContainer; |
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class CMIDUtils; |
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// CLASS DESCRIPTION |
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/** |
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* Defines the Canvas Graphics Item native side component. |
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*/ |
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NONSHARABLE_CLASS(CMIDCanvasGraphicsItem) : |
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public CBase, |
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public MMIDCanvasGraphicsItem, |
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public MMIDCustomComponent, |
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public MMIDScalable |
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{ |
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public: // Type definitions |
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class TCtorParams |
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{ |
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public: |
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// The CanvasGraphicsItemPainter native side peer handle. Not owned. |
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CMIDCanvasGraphicsItemPainter* iPainterHandle; |
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// The shared CMIDUtils instance. Not owned. |
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CMIDUtils* iUtils; |
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TCtorParams::TCtorParams() : |
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iPainterHandle(NULL), |
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iUtils(NULL) {} |
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}; |
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. Creates an instance from this class |
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* The caller takes the ownership of the returned instance |
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* |
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* @param aParams The construction parameters of this class. |
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* @return New instance from this class |
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*/ |
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static CMIDCanvasGraphicsItem* NewL(const TCtorParams& aParams); |
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/** |
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* Destructor. |
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*/ |
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virtual ~CMIDCanvasGraphicsItem(); |
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public: // From MMIDCustomComponent |
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/** |
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* Returns the count of controls in this custom component. |
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* |
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* Note that the count must not change during the lifetime |
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* of the object. The count of all components is updated |
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* when it is added to the custom component container. |
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* |
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* This is done in order to improve the performance when counting |
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* countrols. |
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* |
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* @return The count of controls in this custom component. |
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* @since S60 5.0 |
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*/ |
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TInt CustomComponentControlCount() const; |
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/** |
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* Returns an UI control of this custom component. |
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* |
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* The index specifies which component is requested. The method |
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* works similar to CCoeControl::ComponentControl() method. The |
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* ownership of the control is NOT transferred to the caller. |
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* |
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|
102 |
* @param aIndex The index of the control to be retrieved. |
04becd199f91
Revision: v2.1.22
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|
103 |
* @return The UI control of this custom component. |
04becd199f91
Revision: v2.1.22
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|
104 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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105 |
*/ |
04becd199f91
Revision: v2.1.22
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|
106 |
CCoeControl* CustomComponentControl(TInt aIndex); |
04becd199f91
Revision: v2.1.22
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|
107 |
|
04becd199f91
Revision: v2.1.22
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108 |
/** |
04becd199f91
Revision: v2.1.22
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|
109 |
* Indicates that the container is about to be disposed. |
04becd199f91
Revision: v2.1.22
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110 |
* |
04becd199f91
Revision: v2.1.22
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|
111 |
* The custom component does not have to remove itself |
04becd199f91
Revision: v2.1.22
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|
112 |
* from the container since the container removes all components |
04becd199f91
Revision: v2.1.22
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|
113 |
* when disposing. |
04becd199f91
Revision: v2.1.22
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114 |
* |
04becd199f91
Revision: v2.1.22
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115 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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116 |
*/ |
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Revision: v2.1.22
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117 |
void CustomComponentContainerDisposing(); |
04becd199f91
Revision: v2.1.22
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118 |
|
04becd199f91
Revision: v2.1.22
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119 |
/** |
04becd199f91
Revision: v2.1.22
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120 |
* Indicates if traversal is needed and does the traverse. |
04becd199f91
Revision: v2.1.22
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121 |
* |
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Revision: v2.1.22
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122 |
* Not used on CanvasGraphicsItem. |
04becd199f91
Revision: v2.1.22
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123 |
* |
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Revision: v2.1.22
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124 |
* @param aEvent Key Event. |
04becd199f91
Revision: v2.1.22
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125 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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126 |
*/ |
04becd199f91
Revision: v2.1.22
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127 |
void TraverseL(const TKeyEvent& /* aEvent */) {} |
04becd199f91
Revision: v2.1.22
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128 |
|
04becd199f91
Revision: v2.1.22
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129 |
/** |
04becd199f91
Revision: v2.1.22
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130 |
* Processes the received pointer event. |
04becd199f91
Revision: v2.1.22
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131 |
* |
04becd199f91
Revision: v2.1.22
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|
132 |
* @param aPointerEvent The pointer event. iPosition will be reset to the |
04becd199f91
Revision: v2.1.22
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|
133 |
* parent window position. iParentPosition will be invalid for the |
04becd199f91
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
134 |
* container. |
04becd199f91
Revision: v2.1.22
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|
135 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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|
136 |
*/ |
04becd199f91
Revision: v2.1.22
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|
137 |
void ProcessPointerEventL(const TPointerEvent& /*aPointerEvent*/) {} |
04becd199f91
Revision: v2.1.22
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138 |
|
04becd199f91
Revision: v2.1.22
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|
139 |
/** |
04becd199f91
Revision: v2.1.22
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|
140 |
* Gets the current touch-enabled state |
04becd199f91
Revision: v2.1.22
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|
141 |
* |
04becd199f91
Revision: v2.1.22
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142 |
* @return false, this component is not touch-enabled |
04becd199f91
Revision: v2.1.22
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|
143 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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144 |
*/ |
04becd199f91
Revision: v2.1.22
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|
145 |
TBool IsTouchEnabled() |
04becd199f91
Revision: v2.1.22
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146 |
{ |
04becd199f91
Revision: v2.1.22
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147 |
return EFalse; |
04becd199f91
Revision: v2.1.22
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148 |
} |
04becd199f91
Revision: v2.1.22
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|
149 |
|
04becd199f91
Revision: v2.1.22
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|
150 |
/** |
04becd199f91
Revision: v2.1.22
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|
151 |
* Handles fullscreen state of parent Canvas. |
04becd199f91
Revision: v2.1.22
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152 |
* |
04becd199f91
Revision: v2.1.22
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153 |
* @since S60 5.0 |
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Revision: v2.1.22
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154 |
*/ |
04becd199f91
Revision: v2.1.22
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155 |
void HandleFullscreenModeChange(); |
04becd199f91
Revision: v2.1.22
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156 |
|
04becd199f91
Revision: v2.1.22
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157 |
/** |
04becd199f91
Revision: v2.1.22
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|
158 |
* Handles changes of screen orientation. |
04becd199f91
Revision: v2.1.22
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|
159 |
* |
04becd199f91
Revision: v2.1.22
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160 |
* @since S60 5.0 |
04becd199f91
Revision: v2.1.22
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161 |
*/ |
04becd199f91
Revision: v2.1.22
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|
162 |
void HandleResolutionChange(); |
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Revision: v2.1.22
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163 |
|
46
4376525cdefb
Revision: v2.1.30
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25
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164 |
public: // From MMIDScalable |
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Revision: v2.1.30
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165 |
|
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Revision: v2.1.30
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25
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|
166 |
TBool IsScalingOn() const; |
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Revision: v2.1.30
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|
167 |
|
19
04becd199f91
Revision: v2.1.22
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|
168 |
public: // From MMIDCanvasGraphicsItem |
04becd199f91
Revision: v2.1.22
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169 |
|
04becd199f91
Revision: v2.1.22
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|
170 |
/** |
04becd199f91
Revision: v2.1.22
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|
171 |
* Sets the parent of this canvas graphics item component. The parent must |
04becd199f91
Revision: v2.1.22
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|
172 |
* implement the custom component container interface in order to |
04becd199f91
Revision: v2.1.22
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|
173 |
* provide necessary services for registering custom UI components. |
04becd199f91
Revision: v2.1.22
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|
174 |
* |
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Revision: v2.1.22
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|
175 |
* The ownership of the parent is not transffered to this object. |
04becd199f91
Revision: v2.1.22
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176 |
* |
04becd199f91
Revision: v2.1.22
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|
177 |
* @param aComponentContainer The parent MIDP custom component |
04becd199f91
Revision: v2.1.22
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|
178 |
* container. |
04becd199f91
Revision: v2.1.22
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|
179 |
* @since S60 5.0 |
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Revision: v2.1.22
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180 |
*/ |
04becd199f91
Revision: v2.1.22
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|
181 |
void SetParentL(MMIDCustomComponentContainer* aComponentContainer); |
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Revision: v2.1.22
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|
182 |
|
04becd199f91
Revision: v2.1.22
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|
183 |
/** |
04becd199f91
Revision: v2.1.22
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|
184 |
* Sets the direct container of this canvas graphics item component. |
04becd199f91
Revision: v2.1.22
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185 |
* |
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Revision: v2.1.22
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|
186 |
* Note that the canvas graphics item does not necessary need to have direct |
04becd199f91
Revision: v2.1.22
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|
187 |
* container. If the parent component is responsible for somekind of |
04becd199f91
Revision: v2.1.22
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|
188 |
* custom drawing using direct screena access, this method can be used |
04becd199f91
Revision: v2.1.22
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|
189 |
* to register the direct container. |
04becd199f91
Revision: v2.1.22
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|
190 |
* |
04becd199f91
Revision: v2.1.22
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|
191 |
* The canvas graphics item adds itself to the direct container so that it |
04becd199f91
Revision: v2.1.22
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|
192 |
* is not able to draw on top of the canvas graphics item when direct content |
04becd199f91
Revision: v2.1.22
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|
193 |
* is added to the screen. |
04becd199f91
Revision: v2.1.22
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|
194 |
* |
04becd199f91
Revision: v2.1.22
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|
195 |
* @param aDirectContainer The direct container of this compoennt if |
04becd199f91
Revision: v2.1.22
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|
196 |
* any. <code>NULL</code> removes the current container. |
04becd199f91
Revision: v2.1.22
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|
197 |
* @since S60 5.0 |
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Revision: v2.1.22
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|
198 |
*/ |
04becd199f91
Revision: v2.1.22
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|
199 |
void SetDirectContainerL(MDirectContainer* aDirectContainer); |
04becd199f91
Revision: v2.1.22
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|
200 |
|
04becd199f91
Revision: v2.1.22
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|
201 |
/** |
04becd199f91
Revision: v2.1.22
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|
202 |
* Sets the elevation of this canvas graphics item component. |
04becd199f91
Revision: v2.1.22
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|
203 |
* |
04becd199f91
Revision: v2.1.22
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|
204 |
* If the specified elevation exeeds to amount of items in the |
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* custom component container, the item becomes the topmost item |
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* in the custom component stack. |
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* |
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* Note that the elevation requsted may not be the actual elevation |
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* of the item (if, for example, the elevation is higher than the |
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* amount of all items, the elevation is set to the top). |
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* |
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* @param aElevation The new elevation (Z-position) of this item. |
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* @since S60 5.0 |
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*/ |
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void SetElevationL(TInt aElevation); |
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|
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/** |
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* Returns the elevation of this canvas graphics item component. |
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* |
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* @return The elevation of this canvas graphics item component. |
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* @since S60 5.0 |
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*/ |
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TInt Elevation(); |
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|
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/** |
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* Sets this canvas graphics item component visible if it is hidden. |
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* |
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* Depending on the current status of the canvas graphics item, this operation |
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* is no-op if there is nothing to be done. (i.e. the canvas graphics item is set |
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* hidden when it is already hidden). |
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* |
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* @param aVisible Indicates the visibility status of the canvas graphics item. |
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* @since S60 5.0 |
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*/ |
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void SetVisibleL(TBool aVisible); |
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|
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/** |
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* Sets the size of this canvas graphics item component. |
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* |
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* @param aWidth The width of the item. |
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* @param aHeight The height of the item. |
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* @since S60 5.0 |
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*/ |
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void SetSizeL(const TInt aWidth, const TInt aHeight); |
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|
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/** |
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* Sets the position of this canvas graphics item component. |
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* |
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* Note: Calling this function results in a call to |
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* CMIDCanvasGraphicsItemEdwin::PositionChanged(). |
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* |
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* @param aX The x coordinate of the anchor point. |
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* @param aY The y coordinate of the anchor point. |
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* @since S60 5.0 |
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*/ |
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void SetPosition(const TInt aX, const TInt aY); |
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|
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public: // From MMIDComponent |
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|
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/** |
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* Invoked by the framework to clean up any resources used by the |
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* implementation. |
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* |
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* Typically, the implementation will do "delete this" but is clearly |
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* not restricted to |
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* |
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* @since S60 5.0 |
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*/ |
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void Dispose(); |
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private: // Construtors |
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/** |
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* C++ constructor. |
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*/ |
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CMIDCanvasGraphicsItem(); |
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/** |
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* Second phase constructor |
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* |
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* @param aParams The construction parameters of this class. |
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*/ |
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void ConstructL(const TCtorParams& aParams); |
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private: // Data |
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|
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// canvas graphics item control. Not owned. |
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CMIDCanvasGraphicsItemPainter* iItemPainter; |
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|
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// Container for this object. Not owned. |
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MMIDCustomComponentContainer* iComponentContainer; |
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// The shared CMIDUtils instance. Not owned. |
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CMIDUtils* iUtils; |
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// A non-scaled size of item. Needed by scaling. |
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TSize iNonScaledSize; |
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// A non-scaled position of item. Needed by scaling. |
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TPoint iNonScaledPosition; |
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}; |
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#endif // CMIDCANVASGRAPHICSITEM_H |
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// End of file |