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Drawing custom borders around a Symbian control

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[[Category:Symbian C++]][[Category:UI]][[Category:Code Examples]][[Category:Code Snippet]]
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[[Category:Symbian C++]][[Category:UI]][[Category:Code Snippet]][[Category:Code Snippet]]
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|id= CS000824
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|platform=S60 3rd Edition<br/>S60 3rd Edition, FP1<br/>S60 3rd Edition, FP2
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|devices=Nokia E90 Communicator<br/>Nokia N95 8GB
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|creationdate=February 15, 2008
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|keywords=CWindowGc, CGraphicsContext, TRect, CCoeControl::Draw
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|sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->
 
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|sdk=<!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
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|devicecompatability= <!-- Compatible devices (e.g.: All* (must have GPS) ) -->
|author=[[User:Tapiolaitinen]]
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|signing= Self Signed
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|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
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==Header file==
 
==Header file==
  
Override the <tt>CCoeControl::Draw</tt> method.
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Override the {{Icode|CCoeControl::Draw}} method.
  
 
<code>
 
<code>
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<code cpp>
 
<code cpp>
#define KBorderColor   TRgb(180, 0, 0)
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#define KBorderColor TRgb(180, 0, 0)
 
</code>
 
</code>
  
The drawing is implemented in the <tt>CCoeControl::Draw</tt> method so that the border is drawn every time the view is drawn.
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The drawing is implemented in the {{Icode|CCoeControl::Draw}} method so that the border is drawn every time the view is drawn.
  
 
<code cpp>
 
<code cpp>

Revision as of 08:23, 17 April 2012

Article Metadata
Tested with
Devices(s): Nokia E90 Communicator
Nokia N95 8GB
CompatibilityPlatform Security
Signing Required: Self Signed
Article
Keywords: CWindowGc, CGraphicsContext, TRect, CCoeControl::Draw
Created: tapiolaitinen (06 Feb 2008)
Last edited: hamishwillee (17 Apr 2012)

Overview

This code snippet demonstrates how to draw a custom border around a GUI component.

Header file

Override the CCoeControl::Draw method.

// From CCoeControl
public:
// Draws the view.
void Draw(const TRect& aRect) const;


Source file

Define the color of the border:

#define KBorderColor TRgb(180, 0, 0)

The drawing is implemented in the CCoeControl::Draw method so that the border is drawn every time the view is drawn.

// Draws the view.
void CAppView::Draw(const TRect& aRect) const
{
CWindowGc& gc = SystemGc();
 
// Draw the border around the component (iComponent)
gc.SetBrushColor(KBorderColor);
TRect rect = iComponent->Rect();
// Enlarge the border rectangle so that it becomes visible. Without this,
// the rect would only contain the innards of the component, which will
// be obscured by the component itself.
rect.Grow(3, 3);
gc.DrawRect(rect);
}
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