xtextbox.cpp

Go to the documentation of this file.

#include "SdlArs.h"

namespace Ars
{
XTextBox::XTextBox( void )
: vScrollBar( 0 )
{
        vScrollBar = new XScrollBar();
}

XTextBox::~XTextBox( void )
{
        if( vScrollBar )
                delete vScrollBar;
        vScrollBar = 0;
}

void XTextBox::Init( icstring &aStr )
{
        XLabel::Init( aStr );

        vScrollBar->SetFgColor( GetFgColor() );
        vScrollBar->SetBgColor( GetBgColor() );
        vScrollBar->SetFont( GetFont() );
        vScrollBar->SetState( S_SUNKEN );
        vScrollBar->SetFlags( F_NONE );
        icstring tmp = Rsrc::FindCrdOf( aStr, "scrollbar" );
        vScrollBar->Init( tmp );

        vScrollBar->SetWindowRect( XRect( Right() - 20, y , 20 , Height() ) );
}

const bool XTextBox::SetupWindow( const Message &msg )
{
        XLabel::SetupWindow( msg );

        vScrollBar->SetParent( this );
        vScrollBar->SetupWindow( msg );

        MessageServer::Instance().RegisterMessageClient(this, Message::CTRL_VALUECHANGE);
        MessageServer::Instance().RegisterMessageClient(this, Message::CTRL_VALUECHANGING);

        return true;
}

void XTextBox::DrawBG( void )
{
        w -= 21;
        XLabel::DrawBG();
        w += 21;
}

void XTextBox::Draw(void)
{
        w -= 21;
        XBox::Draw();
        w += 21;
        XRect r( GetClientRect() );
        r.w -= 21;

        int iStartIndex = vScrollBar->GetPosition();
        int     n = (Height() + GetFontSize() - 1) / GetFontSize();

        for( int j = 0; j < n ; ++j )
        {
                int     i = j + iStartIndex;
                if( i < (int)textList.size() )
                {
                        XRect ItemRect( r.x , r.y + (i - iStartIndex) * GetFontSize() , r.Width() , GetFontSize() );
                        if( ItemRect.Overlaps(r ) )
                        {
                                ItemRect.ClipTo( r );
                                ItemRect.SetBottom(ItemRect.Bottom() - 1);
                                ItemRect.Grow(-1);
                                TextOutStr( ItemRect ,  textList[i] , GetFgColor() );
                        }
                }
        }
}

void XTextBox::SetWndText( const std::string &sWindowText )
{
        XLabel::SetWndText( sWindowText );

        textList.clear();

        size_t  n0 = 0 , n1 = sWindowText.find( '\n' , n0 );
        while( n1 != string::npos )
        {
                textList.push_back( sWindowText.substr( n0 , n1 - n0 ) );
                n0 = n1 + 1;
                n1 = sWindowText.find( '\n' , n0 );
        }
        int iMax = textList.size() + 1;
        int     n = Height() / GetFontSize();
        iMax -= n;
        vScrollBar->SetLimits( 0 , max( 0 , iMax ) );
        SetDirty( true );
}

void XTextBox::SetWindowRect( const XRect &WindowRect )
{
        XLabel::SetWindowRect( WindowRect );

        XRect ScrollbarRect( *this );
        ScrollbarRect.Grow(-1);
        vScrollBar->SetWindowRect( XRect( ScrollbarRect.Right() - 12 , ScrollbarRect.y , ScrollbarRect.Width(), ScrollbarRect.Height() ) );
        clientRect = XRect( 2 , 2 , Width() - 16 , Height() - 4 );
}

const bool XTextBox::evValueChange( const CtrlMessage &msg )
{
        bool ans = XLabel::evValueChange( msg );

        if( !textList.empty() )
        {
                if( msg.source == vScrollBar )
                {
                        SetDirty();
                        ans = true;
                }
        }
        return ans;
}

const bool XTextBox::evValueChanging( const CtrlMessage &msg )
{
        bool ans = XLabel::evValueChanging( msg );

        if( !textList.empty() )
        {
                if( msg.source == vScrollBar )
                {
                        SetDirty();
                        ans = true;
                }
        }
        return ans;
}

}

---