/*
* 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:
*
*/
#include <w32std.h>
#include <gulutil.h>
#include <gulcolor.h>
#include "lafstd.h"
//#include "lafccten.h" < This file doesn't exist any more. In fact LafListB isn't used in uikon any more
#include "laflistb.h"
const TInt KLafListBoxBackgroundColor =15; // later, this will be a data member of the listbox
const TInt KLafListBoxItemVGap =6; // to allow a box to be drawn around each item
const TInt KLafListBoxPointerRepeatInterval =100; // in micro seconds
/*The decision on whether or not to use the following 4 laf values is not
made here. Values >= 0 are appropriate (but obviously not too large, such as to
cause overlapping margins in the listbox).*/
/* SERIES 60 LAF */
const TInt KLafListBoxTopMargin =0;
const TInt KLafListBoxBottomMargin =0;
const TInt KLafListBoxLeftMargin =0;
const TInt KLafListBoxRightMargin =0;
/* END OF SERIES 60 LAF */
const TInt KInnerGutter =0; // gutter at the left of textual list items, >= 0 is sensible, 0 turns it off
/*Important display parameters (only) for popout listboxes*/
const TInt KLafListBoxMaxHeightInNumOfItems =KLafListboxNoMaxCellWidth; // >= 1 is sensible, KLafListboxNoMaxCellWidth value turns it off
const TInt KLafListBoxMaxCellWidthInNumOfPixels =KLafListboxNoMaxHeightInNumOfItems; // >= 20 is sensible, KLafListboxNoMaxHeightInNumOfItems value turns it off
EXPORT_C TBool LafListbox::FadeBehind()
{
return EFalse;
}
/**
* Gets the default border for the matched control in aBorder. Called from the constructor of the matched control.
*/
EXPORT_C void LafListbox::GetDefaultBorder(TGulBorder& aBorder)
{
aBorder=TGulBorder(TGulBorder::ENone);
}
/**
* Gets the set of border colors for the matched control in aBorderColors. The RGB values of the colors obtained
* may depend on the the display mode aMode, the environment color list aColorList and the instance of the
* matched control aMatchedControl. Called by the matched control from its Draw() method and passed on to the
* Draw() method of TGulBorder.
*/
EXPORT_C void LafListbox::GetBorderColors(TGulBorder::TColors& aBorderColors, TDisplayMode aDisplayMode, const CColorList& aColorList, const CCoeControl& aMatchedControl)
{
ColorUtils::GetRgbDerivedBorderColors( aBorderColors,
ControlColor(aColorList,aMatchedControl,EColorControlSurroundBackground), aDisplayMode );
}
/**
* Gets the default border for the matched control in aBorder. Called from the constructor of the matched control.
*/
EXPORT_C void LafListbox::GetDefaultPopoutBorder(TGulBorder& aBorder)
{
aBorder=TGulBorder(TGulBorder::EThickDeepRaisedWithOutline);
}
/**
* Gets the set of border colors for the matched control in aBorderColors. The RGB values of the colors obtained
* may depend on the the display mode aMode, the environment color list aColorList and the instance of the
* matched control aMatchedControl. Called by the matched control from its Draw() method and passed on to the
* Draw() method of TGulBorder.
*/
EXPORT_C void LafListbox::GetPopoutBorderColors(TGulBorder::TColors& aBorderColors, TDisplayMode aDisplayMode, const CColorList& aColorList, const CCoeControl& aMatchedControl)
{
ColorUtils::GetRgbDerivedBorderColors( aBorderColors,
ControlColor(aColorList,aMatchedControl,EColorControlBackground), aDisplayMode );
}
//INCLUDE THE FOLLOWING SECTION IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ)
//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^
/*
LOCAL_C TBool DrawFullItemSegment(const TDesC& aDes,TRect& aRect,TInt aLeftXOfRect,
TInt aRightXOfRect,TInt& aWidthLeftToFitInto,
CWindowGc& aGc,const CFont& aFont,const TInt aBaseLineOffset,
TFontUnderline aUnderlineStyle)
{
if(aDes.Length() == aFont.TextCount(aDes,aWidthLeftToFitInto))
{
aWidthLeftToFitInto -= aFont.TextWidthInPixels(aDes);
aGc.UseFont(&aFont);
aGc.SetUnderlineStyle(aUnderlineStyle);
aRect.iTl.iX = aLeftXOfRect;
aRect.iBr.iX = aRightXOfRect;
aGc.DrawText(aDes,aRect,aBaseLineOffset);
return true;
}
else
{
return false;
}
}
LOCAL_C void DrawPartialItemSegment(const TDesC& aDes,TRect& aRect,
TInt aLeftXOfRect,TInt& aWidthLeftToFitInto,
CWindowGc& aGc,const CFont& aFont,const TInt aBaseLineOffset,
TFontUnderline aUnderlineStyle,TInt aRightXOfRect,
const TDesC& aEllipsisDes,const CFont& aSecondFont,
TBool aUseSecondFont)
{
aGc.UseFont(&aFont);
aGc.SetUnderlineStyle(aUnderlineStyle);
aRect.iTl.iX = aLeftXOfRect;
aRect.iBr.iX = aRect.iTl.iX + aFont.TextWidthInPixels(aDes.Left(aFont.TextCount(aDes,aWidthLeftToFitInto)));
aGc.DrawText(aDes.Left(aFont.TextCount(aDes,aWidthLeftToFitInto)),aRect,aBaseLineOffset);
// the following lines add an ellipsis onto the end of the text segment
if(aUseSecondFont) // for the case when you must switch fonts
{
aGc.UseFont(&aSecondFont);
}
aGc.SetUnderlineStyle(EUnderlineOff);
aRect.iTl.iX = aRect.iBr.iX;
aRect.iBr.iX = aRightXOfRect;
aGc.DrawText(aEllipsisDes,aRect,aBaseLineOffset);
}
*/
EXPORT_C void LafListbox::DrawNormalText(const TDesC& aDes,const CFont& /*aFont*/,CWindowGc& aGc,
const TRect& aItemTextRect,const TInt aBaseLineOffset,
const CGraphicsContext::TTextAlign aAlign)
{//static
TBuf<256> temp = aDes;
//INCLUDE THE FOLLOWING 2 LINES IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ)
//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^
//ALSO NEED TO 'UNCOMMENT-OUT' THE AFONT PARAMETER IN THE SIGNATURE
//TInt visibleTextWidth = aItemTextRect.Width() - InnerGutter();
//TextUtils::ClipToFit(temp,aFont,visibleTextWidth);
aGc.DrawText(temp,aItemTextRect,aBaseLineOffset,aAlign,InnerGutter());
}
EXPORT_C void LafListbox::DrawSearchText(const TRect& aItemTextRect,
CWindowGc& aGc,const CFont& aItemFont,const CFont& aBoldFont,
const TDesC& aItemText,const TInt aStrPos,const TInt aStrLen,
const TInt aBaseLineOffset,const CGraphicsContext::TTextAlign aAlign)
{//static
//INCLUDE THE FOLLOWING SECTION IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ)
//BUT DON'T INCLUDE IT IF YOU AREN'T USING ELLIPSIS TRUNCATION ^ELLIPSIS^
//ALSO AALIGN PARAMETER SHOULD BE COMMENTED OUT WHEN USING ELLIPSIS
/*
TRect rectWithoutInnerGutter = aItemTextRect; // copied for modification
if(LafListbox::InnerGutter() != 0)
{
rectWithoutInnerGutter.iTl.iX += LafListbox::InnerGutter();
TRect innerGutterRect(aItemTextRect.iTl.iX,aItemTextRect.iTl.iY,
aItemTextRect.iTl.iX + LafListbox::InnerGutter(),aItemTextRect.iBr.iY);
aGc.DrawRect(innerGutterRect);
}
TInt maxWidthInPixels = (rectWithoutInnerGutter.Width());
const TPtrC headBuf = TPtrC(aItemText.Left(aStrPos));
const TPtrC strBuf = TPtrC(aItemText.Mid(aStrPos,aStrLen));
const TPtrC tailBuf = TPtrC(aItemText.Right(aItemText.Length()-aStrPos-aStrLen));
const TInt headLen = aItemFont.TextWidthInPixels(headBuf);
const TInt stringLen = aBoldFont.TextWidthInPixels(strBuf);
const TInt tailLen = aItemFont.TextWidthInPixels(tailBuf);
const TInt theWidthOfTextSegment = headLen + stringLen + tailLen;
TRect rect = rectWithoutInnerGutter;
if (theWidthOfTextSegment < maxWidthInPixels) // ... or the text segment falls within the rect bounds anyway
{
// draw item head up to search string
rect.iBr.iX = rect.iTl.iX + headLen;
aGc.DrawText(headBuf, rect, aBaseLineOffset);
// draw item tail after the search string
rect.iTl.iX = rect.iBr.iX + stringLen;
rect.iBr.iX = rectWithoutInnerGutter.iBr.iX;
aGc.DrawText(tailBuf, rect, aBaseLineOffset);
// change font and set underlining on
aGc.UseFont(&aBoldFont);
aGc.SetUnderlineStyle(EUnderlineOn);
// draw the search string part of the item with different font
rect.iBr.iX = rect.iTl.iX;
rect.iTl.iX = rect.iBr.iX - stringLen;
aGc.DrawText(strBuf, rect, aBaseLineOffset);
}
else // must add in ellipsis truncation along with string font
{
TBuf<1> ellipsis; // need it to calculate the width of ellipsis
ellipsis.Append(0x2026);
TInt ellipsisWidth = aItemFont.TextWidthInPixels(ellipsis); // width of ellipsis of next segment
TInt widthLeftToFitInto = maxWidthInPixels - ellipsisWidth;
if(DrawFullItemSegment(headBuf,rect,rect.iTl.iX,rect.iTl.iX + headLen,
widthLeftToFitInto,aGc,aItemFont,aBaseLineOffset,EUnderlineOff))
{
if(DrawFullItemSegment(strBuf,rect,rect.iBr.iX,rect.iBr.iX + stringLen,
widthLeftToFitInto,aGc,aBoldFont,aBaseLineOffset,EUnderlineOn))
{
if(DrawFullItemSegment(tailBuf,rect,rect.iBr.iX,rectWithoutInnerGutter.iBr.iX,
widthLeftToFitInto,aGc,aItemFont,aBaseLineOffset,EUnderlineOff))
{
}
else
{
DrawPartialItemSegment(tailBuf,rect,rect.iBr.iX,widthLeftToFitInto,
aGc,aItemFont,aBaseLineOffset,EUnderlineOff,
rectWithoutInnerGutter.iBr.iX,ellipsis,
aBoldFont,EFalse);
}
}
else
{
DrawPartialItemSegment(strBuf,rect,rect.iBr.iX,widthLeftToFitInto,
aGc,aBoldFont,aBaseLineOffset,EUnderlineOn,
rectWithoutInnerGutter.iBr.iX,ellipsis,
aItemFont,ETrue);
}
}
else
{
DrawPartialItemSegment(headBuf,rect,rect.iTl.iX,widthLeftToFitInto,
aGc,aItemFont,aBaseLineOffset,EUnderlineOff,
rectWithoutInnerGutter.iBr.iX,ellipsis,
aBoldFont,ETrue);
}
}
*/
//INCLUDE THE FOLLOWING SECTION IF YOU DON'T WANT TO USE AN ELLIPSIS
//BUT DO INCLUDE IT IF YOU ARE USING ELLIPSIS TRUNCATION ^ELLIPSIS^
const TPtrC textHead = TPtrC(aItemText.Left(aStrPos));
const TPtrC searchStr= TPtrC(aItemText.Mid(aStrPos,aStrLen));
const TPtrC textTail = TPtrC(aItemText.Right(aItemText.Length()-aStrPos-aStrLen));
const TInt headLen = aItemFont.TextWidthInPixels(textHead);
const TInt strLen = aBoldFont.TextWidthInPixels(searchStr);
const TInt tailLen = aItemFont.TextWidthInPixels(textTail);
// adjust text alignment by drawing empty rect before text if necessary
TRect rect = aItemTextRect;
const TInt textLen = headLen + strLen + tailLen;
TInt emptyLen = rect.Width() - textLen;
if ((aAlign==CGraphicsContext::ELeft) || (emptyLen<=0))
emptyLen = 0;
else
{
if (aAlign==CGraphicsContext::ECenter) emptyLen = (emptyLen>>1);
//else if (aAlign=ERight) emptyLen = emptyLen;
}
// draw item head up to search string
rect.iBr.iX = rect.iTl.iX + emptyLen + headLen;
aGc.DrawText( textHead, rect, aBaseLineOffset, CGraphicsContext::ERight );
// draw item tail after the search string
rect.iTl.iX = rect.iBr.iX + strLen;
rect.iBr.iX = aItemTextRect.iBr.iX;
aGc.DrawText( textTail, rect, aBaseLineOffset );
// change font and set undelining on
aGc.UseFont(&aBoldFont);
aGc.SetUnderlineStyle(EUnderlineOn);
// draw the search string part of the item with different font
rect.iBr.iX = rect.iTl.iX;
rect.iTl.iX = rect.iBr.iX - strLen;
aGc.DrawText( searchStr, rect, aBaseLineOffset );
}
EXPORT_C TInt LafListbox::ItemWidth(TInt aViewRectWidth, TInt aDataWidth)
{
//INCLUDE THE FOLLOWING LINE IF YOU WANT TO USE AN ELLIPSIS (IE.QUARTZ), OTHERWISE DON'T ^ELLIPSIS^
//return aViewRectWidth;
//INCLUDE THE FOLLOWING LINE IF YOU DON'T WANT TO USE AN ELLIPSIS, OTHERWISE DON'T ^ELLIPSIS^
return Max(aViewRectWidth, aDataWidth);
}
EXPORT_C TInt LafListbox::Constant(TConstantType aType)
{ // static
switch (aType)
{
case EBackgroundColor:
return KLafListBoxBackgroundColor;
case EItemVGap:
return KLafListBoxItemVGap;
case EPointerRepeatInterval:
return KLafListBoxPointerRepeatInterval;
case ETopMargin:
return KLafListBoxTopMargin;
case EBottomMargin:
return KLafListBoxBottomMargin;
case ELeftMargin:
return KLafListBoxLeftMargin;
case ERightMargin:
return KLafListBoxRightMargin;
case EMaxHeightInNumOfItems:
return KLafListBoxMaxHeightInNumOfItems;
case EMaxCellWidthInNumOfPixels:
return KLafListBoxMaxCellWidthInNumOfPixels;
case EInnerGutter:
return KInnerGutter;
default:
break;
// Panic - unknown type requested
}
return 0; // will never reach here
}
EXPORT_C void LafListbox::DrawFrame(CWindowGc& /*aGc*/,const TRect& /*aRect*/,const TInt /*aFlags*/)
{ // static
}
/**
* Returns the default flags for the scroll bar for orientation aOrientation.
* Called when the matched control creates its scroll bar frame..
*/
EXPORT_C TInt LafListbox::DefaultScrollBarFlags(TInt /*aOrientation*/)
{
return 0;
}
/**
* Gets the default attributes for the scroll bar for orientation aOrientation in aAttributes.
* Called when the matched control creates its scroll bar frame..
*/
EXPORT_C void LafListbox::GetDefaultScrollBarAttributes(TInt /*aOrientation*/, LafScrollBarFrame::TScrollBarAttributes& aAttributes)
{
aAttributes = LafScrollBarFrame::TScrollBarAttributes();
}