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game/client/vgui_slideshow_display_screen.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "cbase.h"
+#include "c_vguiscreen.h"
+#include "vgui_controls/Label.h"
+#include "vgui_bitmappanel.h"
+#include <vgui/IVGui.h>
+#include "c_slideshow_display.h"
+#include "ienginevgui.h"
+#include "fmtstr.h"
+#include "vgui_controls/ImagePanel.h"
+
+using namespace vgui;
+
+
+//-----------------------------------------------------------------------------
+// Control screen 
+//-----------------------------------------------------------------------------
+class CSlideshowDisplayScreen : public CVGuiScreenPanel
+{
+	DECLARE_CLASS( CSlideshowDisplayScreen, CVGuiScreenPanel );
+
+public:
+	CSlideshowDisplayScreen( vgui::Panel *parent, const char *panelName );
+
+	virtual void ApplySchemeSettings( IScheme *pScheme );
+
+	virtual bool Init( KeyValues* pKeyValues, VGuiScreenInitData_t* pInitData );
+	virtual void OnTick();
+
+private:
+	void Update( C_SlideshowDisplay *pSlideshowDisplay );
+
+private:
+	vgui::Label *m_pDisplayTextLabel;
+	CUtlVector<ImagePanel*> m_pSlideshowImages;
+
+	int iLastSlideIndex;
+
+	Color m_cDefault;
+	Color m_cInvisible;
+
+	bool bIsAlreadyVisible;
+};
+
+
+DECLARE_VGUI_SCREEN_FACTORY( CSlideshowDisplayScreen, "slideshow_display_screen" );
+
+//-----------------------------------------------------------------------------
+// Constructor: 
+//-----------------------------------------------------------------------------
+CSlideshowDisplayScreen::CSlideshowDisplayScreen( vgui::Panel *parent, const char *panelName )
+	: BaseClass( parent, "CSlideshowDisplayScreen", vgui::scheme()->LoadSchemeFromFileEx( enginevgui->GetPanel( PANEL_CLIENTDLL ), "resource/SlideshowDisplayScreen.res", "SlideshowDisplayScreen" ) ) 
+{
+	m_pDisplayTextLabel = new vgui::Label( this, "NumberDisplay", "x" );
+	iLastSlideIndex = 0;
+}
+
+void CSlideshowDisplayScreen::ApplySchemeSettings( IScheme *pScheme )
+{
+	assert( pScheme );
+
+	m_cDefault = pScheme->GetColor( "CSlideshowDisplayScreen_Default", GetFgColor() );
+	m_cInvisible = Color( 0, 0, 0, 0 );	
+
+	m_pDisplayTextLabel->SetFgColor( m_cDefault );
+}
+
+//-----------------------------------------------------------------------------
+// Initialization 
+//-----------------------------------------------------------------------------
+bool CSlideshowDisplayScreen::Init( KeyValues* pKeyValues, VGuiScreenInitData_t* pInitData )
+{
+	// Make sure we get ticked...
+	vgui::ivgui()->AddTickSignal( GetVPanel() );
+
+	if (!BaseClass::Init(pKeyValues, pInitData))
+		return false;
+
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Update the display string
+//-----------------------------------------------------------------------------
+void CSlideshowDisplayScreen::OnTick()
+{
+	BaseClass::OnTick();
+
+	if ( g_SlideshowDisplays.Count() <= 0 )
+		return;
+
+	C_SlideshowDisplay *pSlideshowDisplay = NULL;
+
+	for ( int iDisplayScreens = 0; iDisplayScreens < g_SlideshowDisplays.Count(); ++iDisplayScreens  )
+	{
+		C_SlideshowDisplay *pSlideshowDisplayTemp = g_SlideshowDisplays[ iDisplayScreens ];
+		if ( pSlideshowDisplayTemp && pSlideshowDisplayTemp->IsEnabled() )
+		{
+			pSlideshowDisplay = pSlideshowDisplayTemp;
+			break;
+		}
+	}
+
+	if( !pSlideshowDisplay )
+	{
+		// All display screens are disabled
+		if ( bIsAlreadyVisible )
+		{
+			SetVisible( false );
+			bIsAlreadyVisible = false;
+		}
+		return;
+	}
+
+	if ( !bIsAlreadyVisible )
+	{
+		SetVisible( true );
+		bIsAlreadyVisible = true;
+	}
+
+	Update( pSlideshowDisplay );
+}
+
+void CSlideshowDisplayScreen::Update( C_SlideshowDisplay *pSlideshowDisplay )
+{
+	char szBuff[ 256 ];
+	pSlideshowDisplay->GetDisplayText( szBuff );
+	m_pDisplayTextLabel->SetText( szBuff );
+
+	if ( m_pSlideshowImages.Count() == 0 )
+	{
+		// Build the list of image panels!
+		for ( int iSlide = 0; iSlide < pSlideshowDisplay->NumMaterials(); ++iSlide )
+		{
+			m_pSlideshowImages.AddToTail( SETUP_PANEL( new ImagePanel( this, "SlideshowImage" ) ) );
+
+			int iMatIndex = pSlideshowDisplay->GetMaterialIndex( iSlide );
+
+			if ( iMatIndex > 0 )
+			{
+				const char *pMaterialName = GetMaterialNameFromIndex( iMatIndex );
+				if ( pMaterialName )
+				{
+					pMaterialName = Q_strnchr( pMaterialName, '/', Q_strlen( pMaterialName ) );
+
+					if ( pMaterialName )
+					{
+						pMaterialName = pMaterialName + 1;
+						m_pSlideshowImages[ iSlide ]->SetImage( pMaterialName );
+						m_pSlideshowImages[ iSlide ]->SetVisible( false );
+						m_pSlideshowImages[ iSlide ]->SetZPos( -3 );
+						m_pSlideshowImages[ iSlide ]->SetWide( GetWide() );
+						m_pSlideshowImages[ iSlide ]->SetTall( GetTall() );
+					}
+				}
+			}
+		}
+	}
+
+	int iCurrentSlideIndex = pSlideshowDisplay->CurrentSlideIndex();
+
+	if ( iCurrentSlideIndex != iLastSlideIndex )
+	{
+		m_pSlideshowImages[ iLastSlideIndex ]->SetVisible( false );
+		m_pSlideshowImages[ iCurrentSlideIndex ]->SetVisible( true );
+		iLastSlideIndex = iCurrentSlideIndex;
+	}
+}