add initial examples, replacing the 'Demos/Demos3'. Will make it work cross-platform, OpenGL3/OpenGL2 and add more examples to it.

examples/ThirdPartyLibs/Gwen/BaseRender.cpp

@@ -0,0 +1,221 @@
+/*
+	GWEN
+	Copyright (c) 2010 Facepunch Studios
+	See license in Gwen.h
+*/
+
+
+#include "Gwen/Gwen.h"
+#include "Gwen/BaseRender.h"
+#include "Gwen/Utility.h"
+#include "Gwen/Platform.h"
+
+#include <math.h>
+
+namespace Gwen
+{
+	namespace Renderer
+	{
+
+		Base::Base()
+		{
+			m_RenderOffset = Gwen::Point( 0, 0 );
+			m_fScale = 1.0f;
+		}
+
+		Base::~Base()
+		{
+			if ( GetCTT() )
+				GetCTT()->ShutDown();
+		}
+
+		void Base::RenderText( Gwen::Font* pFont, Gwen::Point pos, const Gwen::String& text )
+		{
+			Gwen::UnicodeString str = Gwen::Utility::StringToUnicode( text );
+			RenderText( pFont, pos, str );
+		}
+
+		Gwen::Point Base::MeasureText( Gwen::Font* pFont, const Gwen::String& text )
+		{
+			Gwen::UnicodeString str = Gwen::Utility::StringToUnicode( text );
+			return MeasureText( pFont, str );
+		}
+				
+		void Base::DrawLinedRect( Gwen::Rect rect )
+		{
+			DrawFilledRect( Gwen::Rect( rect.x, rect.y, rect.w, 1 ) );
+			DrawFilledRect( Gwen::Rect( rect.x, rect.y + rect.h-1, rect.w, 1 ) );
+
+			DrawFilledRect( Gwen::Rect( rect.x, rect.y, 1, rect.h ) );
+			DrawFilledRect( Gwen::Rect( rect.x + rect.w-1, rect.y, 1, rect.h ) );
+		};
+
+		void Base::DrawPixel( int x, int y )
+		{
+			DrawFilledRect( Gwen::Rect( x, y, 1, 1 ) );
+		}
+
+		void Base::DrawShavedCornerRect( Gwen::Rect rect, bool bSlight )
+		{
+			// Draw INSIDE the w/h.
+			rect.w -= 1;
+			rect.h -= 1;
+
+			if ( bSlight )
+			{
+				DrawFilledRect( Gwen::Rect( rect.x+1, rect.y, rect.w-1, 1 ) );
+				DrawFilledRect( Gwen::Rect( rect.x+1, rect.y + rect.h, rect.w-1, 1 ) );
+
+				DrawFilledRect( Gwen::Rect( rect.x, rect.y+1, 1, rect.h-1 ) );
+				DrawFilledRect( Gwen::Rect( rect.x + rect.w, rect.y+1, 1, rect.h-1 ) );
+				return;
+			}
+
+			DrawPixel( rect.x+1, rect.y+1 );
+			DrawPixel( rect.x+rect.w-1, rect.y+1 );
+
+			DrawPixel( rect.x+1, rect.y+rect.h-1 );
+			DrawPixel( rect.x+rect.w-1, rect.y+rect.h-1 );
+
+			DrawFilledRect( Gwen::Rect( rect.x+2, rect.y, rect.w-3, 1 ) );
+			DrawFilledRect( Gwen::Rect( rect.x+2, rect.y + rect.h, rect.w-3, 1 ) );
+
+			DrawFilledRect( Gwen::Rect( rect.x, rect.y+2, 1, rect.h-3 ) );
+			DrawFilledRect( Gwen::Rect( rect.x + rect.w, rect.y+2, 1, rect.h-3 ) );
+		}
+
+		void Base::Translate( int& x, int& y )
+		{
+			x += m_RenderOffset.x;
+			y += m_RenderOffset.y;
+
+			x = ceil( ((float) x ) * m_fScale );
+			y = ceil( ((float) y ) * m_fScale );
+		}
+
+		void Base::Translate( Gwen::Rect& rect )
+		{
+			Translate( rect.x, rect.y );
+
+			rect.w = ceil(((float) rect.w ) * m_fScale);
+			rect.h = ceil(((float) rect.h ) * m_fScale);
+		}
+
+		void Gwen::Renderer::Base::SetClipRegion( Gwen::Rect rect )
+		{ 
+			m_rectClipRegion = rect; 
+		}
+
+		void Base::AddClipRegion( Gwen::Rect rect ) 
+		{ 
+			rect.x = m_RenderOffset.x;
+			rect.y = m_RenderOffset.y;
+
+			Gwen::Rect out = rect;
+			if ( rect.x < m_rectClipRegion.x )
+			{
+				out.w -= ( m_rectClipRegion.x - out.x );
+				out.x = m_rectClipRegion.x;
+			}
+
+			if ( rect.y < m_rectClipRegion.y )
+			{
+				out.h -= ( m_rectClipRegion.y - out.y );
+				out.y = m_rectClipRegion.y;
+			}
+
+			if ( rect.x + rect.w > m_rectClipRegion.x + m_rectClipRegion.w )
+			{
+				out.w = (m_rectClipRegion.x + m_rectClipRegion.w) - out.x;
+			}
+
+			if ( rect.y + rect.h > m_rectClipRegion.y + m_rectClipRegion.h )
+			{
+				out.h = (m_rectClipRegion.y + m_rectClipRegion.h) - out.y;
+			}
+
+			m_rectClipRegion = out;
+		}
+
+		const Gwen::Rect& Base::ClipRegion() const
+		{ 
+			return m_rectClipRegion; 
+		}
+
+		bool Base::ClipRegionVisible()
+		{
+			if ( m_rectClipRegion.w <= 0 || m_rectClipRegion.h <= 0 )
+				return false;
+			
+			return true;
+		}
+
+		void Base::DrawMissingImage( Gwen::Rect pTargetRect )
+		{
+			SetDrawColor( Colors::Red );
+			DrawFilledRect( pTargetRect );
+		}
+
+		
+		/*
+			If they haven't defined these font functions in their renderer code
+			we just draw some rects where the letters would be to give them an idea.
+		*/
+
+		void Base::RenderText( Gwen::Font* pFont, Gwen::Point pos, const Gwen::UnicodeString& text )
+		{
+			float fSize = pFont->size * Scale();
+
+			for ( float i=0; i<text.length(); i++ )
+			{
+				wchar_t chr = text[i];
+
+				if ( chr == ' ' ) continue;
+
+				Gwen::Rect r( pos.x + i * fSize * 0.4, pos.y, fSize * 0.4 -1, fSize );
+
+				/*
+					This isn't important, it's just me messing around changing the
+					shape of the rect based on the letter.. just for fun.
+				*/
+				if ( chr == 'l' || chr == 'i' || chr == '!' || chr == 't' )
+				{
+					r.w = 1;
+				}
+				else if ( chr >= 'a' && chr <= 'z' )
+				{
+					r.y += fSize * 0.5f;
+					r.h -= fSize * 0.4f;
+				}
+				else if ( chr == '.' || chr == ',' )
+				{
+					r.x += 2;
+					r.y += r.h - 2;
+					r.w = 2;
+					r.h = 2;
+				}
+				else if ( chr == '\'' || chr == '`'  || chr == '"' )
+				{
+					r.x += 3;
+					r.w = 2;
+					r.h = 2;
+				}
+
+
+				if ( chr == 'o' || chr == 'O' || chr == '0' )
+					DrawLinedRect( r );	
+				else
+					DrawFilledRect( r );
+			}
+		}
+
+		Gwen::Point Base::MeasureText( Gwen::Font* pFont, const Gwen::UnicodeString& text )
+		{
+			Gwen::Point p;
+			p.x = pFont->size * Scale() * (float)text.length() * 0.4;
+			p.y = pFont->size * Scale();
+
+			return p;
+		}
+	}
+}