Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $Workfile: $
// $Date: $
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "itextmessage.h"
#include <vgui_controls/Panel.h>
#include <vgui/IVGui.h>
#include <vgui/ILocalize.h>
#include "VGuiMatSurface/IMatSystemSurface.h"
#include <vgui_controls/Controls.h>
#include <vgui/ISurface.h>
#include "hud.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
// Simultaneous message limit
#define MAX_TEXTMESSAGE_CHARS 2048
//-----------------------------------------------------------------------------
// Purpose: For rendering the Titles.txt characters to the screen from the HUD
//-----------------------------------------------------------------------------
class CTextMessagePanel : public vgui::Panel
{
typedef vgui::Panel BaseClass;
public:
enum
{
TYPE_UNKNOWN = 0,
TYPE_POSITION,
TYPE_CHARACTER,
TYPE_FONT,
};
struct message_t
{
vgui::HFont font;
short x, y;
wchar_t ch;
byte type;
byte r, g, b, a;
};
CTextMessagePanel( vgui::VPANEL parent );
virtual ~CTextMessagePanel( void );
virtual void SetPosition( int x, int y );
virtual void AddChar( int r, int g, int b, int a, wchar_t ch );
virtual void GetTextExtents( int *wide, int *tall, const char *string );
virtual void SetFont( vgui::HFont hCustomFont );
virtual void SetDefaultFont( void );
virtual void OnTick( void );
virtual void Paint();
virtual bool ShouldDraw( void );
// Get character data for textmessage text
virtual int GetFontInfo( FONTABC *pABCs, vgui::HFont hFont );
virtual void ApplySchemeSettings( vgui::IScheme *pScheme )
{
BaseClass::ApplySchemeSettings( pScheme );
SetSize( ScreenWidth(), ScreenHeight() );
SetPos( 0, 0 );
}
private:
message_t *AllocMessage( void );
void Reset( void );
vgui::HFont m_hFont;
vgui::HFont m_hDefaultFont;
CUtlVector< message_t > m_Messages;
};
//-----------------------------------------------------------------------------
// Purpose: Constructor
// Input : *parent -
//-----------------------------------------------------------------------------
CTextMessagePanel::CTextMessagePanel( vgui::VPANEL parent )
: BaseClass( NULL, "CTextMessagePanel" )
{
SetParent( parent );
SetSize( ScreenWidth(), ScreenHeight() );
SetPos( 0, 0 );
SetVisible( false );
SetCursor( null );
SetKeyBoardInputEnabled( false );
SetMouseInputEnabled( false );
m_hFont = g_hFontTrebuchet24;
m_hDefaultFont = m_hFont;
SetFgColor( Color( 0, 0, 0, 255 ) );
SetPaintBackgroundEnabled( false );
// Clear memory out
Reset();
vgui::ivgui()->AddTickSignal( GetVPanel(), 100 );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CTextMessagePanel::~CTextMessagePanel( void )
{
}
//-----------------------------------------------------------------------------
// Purpose: Get font sizes
// Input : *pWidth -
// Output : int
//-----------------------------------------------------------------------------
int CTextMessagePanel::GetFontInfo( FONTABC *pABCs, vgui::HFont hFont )
{
int i;
if ( !hFont )
{
hFont = m_hFont;
}
if ( !hFont )
return 0;
if ( pABCs )
{
for ( i =0; i < 256; i++ )
{
int a, b, c;
vgui::surface()->GetCharABCwide( hFont, (char)i, a, b, c );
pABCs[i].abcA = a;
pABCs[i].abcB = b;
pABCs[i].abcC = c;
pABCs[i].total = a+b+c;
}
}
return vgui::surface()->GetFontTall( hFont );
}
//-----------------------------------------------------------------------------
// Purpose: Clear all messages out of active list, etc.
//-----------------------------------------------------------------------------
void CTextMessagePanel::Reset( void )
{
m_Messages.Purge();
SetVisible( false );
}
//-----------------------------------------------------------------------------
// Purpose: Grab next free message, if any
// Output : CTextMessagePanel::message_t
//-----------------------------------------------------------------------------
CTextMessagePanel::message_t *CTextMessagePanel::AllocMessage( void )
{
CTextMessagePanel::message_t *msg;
if ( m_Messages.Count() >= MAX_TEXTMESSAGE_CHARS )
return NULL;
msg = &m_Messages[ m_Messages.AddToTail() ];
msg->type = TYPE_UNKNOWN;
msg->x = 0;
msg->y = 0;
msg->ch = 0;
msg->r = 0;
msg->g = 0;
msg->b = 0;
msg->a = 0;
SetVisible( true );
return msg;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : x -
// y -
//-----------------------------------------------------------------------------
void CTextMessagePanel::SetPosition( int x, int y )
{
CTextMessagePanel::message_t *msg = AllocMessage();
if ( !msg )
return;
msg->type = TYPE_POSITION;
// Used fields
msg->x = x;
msg->y = y;
}
//-----------------------------------------------------------------------------
// Purpose: Adds a character to the active list, if possible
// Input : x -
// y -
// r -
// g -
// b -
// a -
// ch -
// Output : int
//-----------------------------------------------------------------------------
void CTextMessagePanel::AddChar( int r, int g, int b, int a, wchar_t ch )
{
CTextMessagePanel::message_t *msg = AllocMessage();
if ( !msg )
return;
msg->type = TYPE_CHARACTER;
// Used fields
msg->r = r;
msg->g = g;
msg->b = b;
msg->a = a;
msg->ch = ch;
}
//-----------------------------------------------------------------------------
// Purpose: Determine width and height of specified string
// Input : *wide -
// *tall -
// *string -
//-----------------------------------------------------------------------------
void CTextMessagePanel::GetTextExtents( int *wide, int *tall, const char *string )
{
*wide = g_pMatSystemSurface->DrawTextLen( m_hFont, "%s", (char *)string );
*tall = vgui::surface()->GetFontTall( m_hFont );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CTextMessagePanel::SetFont( vgui::HFont hCustomFont )
{
m_hFont = hCustomFont;
CTextMessagePanel::message_t *msg = AllocMessage();
if ( !msg )
return;
msg->type = TYPE_FONT;
// Used fields
msg->font = m_hFont;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CTextMessagePanel::SetDefaultFont( void )
{
SetFont( m_hDefaultFont );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CTextMessagePanel::OnTick( void )
{
SetVisible( ShouldDraw() );
}
//-----------------------------------------------------------------------------
// Purpose:
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CTextMessagePanel::ShouldDraw( void )
{
if ( !m_Messages.Count() )
return false;
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Draw current text items
//-----------------------------------------------------------------------------
void CTextMessagePanel::Paint()
{
CTextMessagePanel::message_t *msg;
int xpos = 0, ypos = 0;
vgui::surface()->DrawSetTextFont( m_hFont );
int messageCount = m_Messages.Count();
for ( int i = 0 ; i < messageCount; ++i )
{
msg = &m_Messages[ i ];
switch ( msg->type )
{
default:
case TYPE_UNKNOWN:
Assert( 0 );
break;
case TYPE_POSITION:
xpos = msg->x;
ypos = msg->y;
break;
case TYPE_FONT:
m_hFont = msg->font;
vgui::surface()->DrawSetTextFont( m_hFont );
break;
case TYPE_CHARACTER:
if ( m_hFont )
{
int a, b, c;
vgui::surface()->GetCharABCwide( m_hFont, msg->ch, a, b, c );
if ( msg->ch > 32 )
{
vgui::surface()->DrawSetTextColor( msg->r, msg->g, msg->b, msg->a );
vgui::surface()->DrawSetTextPos( xpos, ypos );
vgui::surface()->DrawUnicodeChar( msg->ch );
}
xpos += a + b + c;
}
break;
}
}
Reset();
}
class CTextMessage : public ITextMessage
{
private:
CTextMessagePanel *textMessagePanel;
public:
CTextMessage( void )
{
textMessagePanel = NULL;
}
void Create( vgui::VPANEL parent )
{
textMessagePanel = new CTextMessagePanel( parent );
}
void Destroy( void )
{
if ( textMessagePanel )
{
textMessagePanel->SetParent( (vgui::Panel *)NULL );
delete textMessagePanel;
}
}
void SetPosition( int x, int y )
{
if ( !textMessagePanel )
return;
textMessagePanel->SetPosition( x, y );
}
void AddChar( int r, int g, int b, int a, wchar_t ch )
{
if ( !textMessagePanel )
return;
textMessagePanel->AddChar( r, g, b, a, ch );
}
void GetLength( int *wide, int *tall, const char *string )
{
if ( !textMessagePanel )
{
*wide = *tall = 0;
return;
}
textMessagePanel->GetTextExtents( wide, tall, string );
}
int GetFontInfo( FONTABC *pABCs, vgui::HFont hFont )
{
return textMessagePanel ? textMessagePanel->GetFontInfo( pABCs, hFont ) : 0;
}
void SetFont( vgui::HFont hCustomFont )
{
if ( !textMessagePanel )
return;
textMessagePanel->SetFont( hCustomFont );
}
void SetDefaultFont( void )
{
if ( !textMessagePanel )
return;
textMessagePanel->SetDefaultFont();
}
};
static CTextMessage g_TextMessage;
ITextMessage *textmessage = &g_TextMessage;