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utils/vgui_panel_zoo/ImageDemo.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "DemoPage.h"
+
+#include "vgui/IVGui.h"
+#include "vgui_controls/Controls.h"
+#include <vgui/IScheme.h>
+#include <vgui/IImage.h>
+
+using namespace vgui;
+
+//-----------------------------------------------------------------------------
+// An Image is an class that handles drawing of a tga image
+// They are not panels.
+//-----------------------------------------------------------------------------
+class ImageDemo: public DemoPage
+{
+	typedef DemoPage BaseClass;
+
+public:
+	ImageDemo(Panel *parent, const char *name);
+	~ImageDemo();
+
+	virtual void ApplySchemeSettings(IScheme *pScheme);
+	virtual void Paint();
+	
+private:
+	IImage *m_pImage;
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: Constructor
+//-----------------------------------------------------------------------------
+ImageDemo::ImageDemo(Panel *parent, const char *name) : DemoPage(parent, name)
+{
+	// now insert an image
+	m_pImage = NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Destructor
+//-----------------------------------------------------------------------------
+ImageDemo::~ImageDemo()
+{
+}
+
+//-----------------------------------------------------------------------------
+// Scheme settings
+//-----------------------------------------------------------------------------
+void ImageDemo::ApplySchemeSettings(IScheme *pScheme)
+{
+	BaseClass::ApplySchemeSettings( pScheme );
+
+	// now insert an image
+	m_pImage = scheme()->GetImage("Resource/valve_logo", false);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Paint the image on screen. Images are not panels, 
+// You must call the Paint method explicitly for them.
+// and set thier position in the frame every time you draw them.
+//-----------------------------------------------------------------------------
+void ImageDemo::Paint()
+{
+	m_pImage->SetPos(100, 100);
+	m_pImage->Paint();
+}
+
+
+Panel* ImageDemo_Create(Panel *parent)
+{
+	return new ImageDemo(parent, "ImageDemo");
+}
+