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. ============//
//
//=======================================================================================//
#ifndef SLIDESHOWPANEL_H
#define SLIDESHOWPANEL_H
#ifdef _WIN32
#pragma once
#endif
#include "vgui_controls/EditablePanel.h"
#include "vgui_controls/ProgressBar.h"
#include "vgui_controls/ImagePanel.h"
using namespace vgui;
//-----------------------------------------------------------------------------
// Purpose: Allows fade from one image to another
//-----------------------------------------------------------------------------
class CCrossfadableImagePanel : public EditablePanel
{
DECLARE_CLASS_SIMPLE( CCrossfadableImagePanel, EditablePanel );
public:
CCrossfadableImagePanel( Panel* pParent, const char *pName );
~CCrossfadableImagePanel();
virtual void ApplySettings( KeyValues *pInResourceData );
virtual void ApplySchemeSettings( IScheme *pScheme );
virtual void PerformLayout();
// A duplicate of the ImagePanel interface - the only difference being that
// here we have blend times for SetImage().
void SetImage( IImage *pImage, float flBlendTime = 0.0f );
void SetImage( const char *pImageName, float flBlendTime = 0.0f );
void SetShouldScaleImage( bool bState );
void SetScaleAmount( float flScale );
void SetDrawColor( Color clrDrawColor );
IImage *GetImage();
const char *GetImageName();
void SetFillColor( Color c );
float GetScaleAmount();
bool GetShouldScaleImage();
Color GetFillColor();
Color GetDrawColor();
virtual void InstallMouseHandler( Panel *pHandler );
private:
virtual void OnSizeChanged( int nWide, int nTall );
virtual void OnTick();
inline ImagePanel *SrcImg() { return m_pImages[ m_iSrcImg ]; }
inline ImagePanel *DstImg() { return m_pImages[ !m_iSrcImg ]; }
void SetupImageBlend( float flBlendTime );
float m_flStartBlendTime; // the gpGlobals->realtime when we started blending
float m_flBlendTime; // amount of time to blend from one image to the next one
float m_flBlend; // blend value in [0,1] where 0 maps to the source image, and 1 maps to the dest image
bool m_bBlending; // are we currently transitioning/blending from one image to another?
ImagePanel* m_pImages[2];
int m_iSrcImg; // 0 or 1
};
//-----------------------------------------------------------------------------
// Purpose: Displays a slideshow of images at a set interval
//-----------------------------------------------------------------------------
class CSlideshowPanel : public EditablePanel
{
DECLARE_CLASS_SIMPLE( CSlideshowPanel, EditablePanel );
public:
CSlideshowPanel( Panel *pParent, const char *pName );
~CSlideshowPanel();
// Pass in a vgui-relative path, like "training/screenshots/cp_dustbowl_", and
// the slideshow panel will add "0.vmt", "1.vmt" etc. until it can't find anymore images.
void FillWithImages( const char *pBasePath );
void AddImage( const char *pImageName );
void AddImage( IImage *pImage );
void SetInterval( float flInterval );
void SetTransitionTime( float flTransitionLength );
CCrossfadableImagePanel *GetImagePanel() { return m_pImagePanel; }
int GetImageCount() const { return m_vecImages.Count(); }
private:
virtual void ApplySettings( KeyValues *pInResourceData );
virtual void OnSizeChanged( int nWide, int nTall );
virtual void OnTick();
void UpdateNextTransitionTime();
CCrossfadableImagePanel *m_pImagePanel;
CUtlVector< IImage * > m_vecImages;
float m_flNextTransitionTime; // gpGlobals->realtime of time when we should transition next
float m_flInterval; // Amount of time between blend begins to next image, in seconds
float m_flTransitionLength; // Length of each transition
int m_iCurImg; // Current image index
};
#endif // SLIDESHOWPANEL_H