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game/client/tf/vgui/softline.cpp

@@ -0,0 +1,96 @@
+#include "cbase.h"
+#include "softline.h"
+#include <KeyValues.h>
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+
+SoftLine::SoftLine(vgui::Panel *parent, const char *panelName, Color col) :
+	vgui::Panel(parent, panelName)
+{
+	m_Color = col;
+	m_iCornerType = 0;
+}
+
+void SoftLine::Paint()
+{
+	if (m_iCornerType == 1)
+		DrawSoftLine(1,GetTall() - 2, GetWide() - 2, 1, m_Color);
+	else
+		DrawSoftLine(1,1, GetWide() - 2, GetTall() - 2, m_Color);
+}
+
+int SoftLine::s_nWhiteTexture = -1;
+
+void SoftLine::DrawSoftLine(float x, float y, float x2, float y2, Color c)
+{
+	vgui::Vertex_t start, end;				
+
+	if (s_nWhiteTexture == -1)
+	{
+		s_nWhiteTexture = vgui::surface()->CreateNewTextureID();
+		vgui::surface()->DrawSetTextureFile( s_nWhiteTexture, "vgui/white" , true, false);
+		if (s_nWhiteTexture == -1)
+			return;
+		return;
+	}
+
+	// draw main line
+	vgui::surface()->DrawSetTexture(s_nWhiteTexture);
+	vgui::surface()->DrawSetColor(c);
+
+	//vgui::surface()->DrawLine(x,y,x2,y2);
+	start.Init(Vector2D(x,y), Vector2D(0,0));
+	end.Init(Vector2D(x2,y2), Vector2D(1,1));
+	DrawPolygonLine(start, end);
+	
+	// draw translucent ones around it to give it some softness	
+	vgui::surface()->DrawSetColor(c);
+
+	start.Init(Vector2D(x - 0.50f,y - 0.50f), Vector2D(0,0));
+	end.Init(Vector2D(x2 - 0.50f,y2 - 0.50f), Vector2D(1,1));
+	DrawPolygonLine(start, end);
+
+	start.Init(Vector2D(x + 0.50f,y - 0.50f), Vector2D(0,0));
+	end.Init(Vector2D(x2 + 0.50f,y2 - 0.50f), Vector2D(1,1));
+	DrawPolygonLine(start, end);
+
+	start.Init(Vector2D(x - 0.50f,y + 0.50f), Vector2D(0,0));
+	end.Init(Vector2D(x2 - 0.50f,y2 + 0.50f), Vector2D(1,1));
+	DrawPolygonLine(start, end);
+
+	start.Init(Vector2D(x + 0.50f,y + 0.50f), Vector2D(0,0));
+	end.Init(Vector2D(x2 + 0.50f,y2 + 0.50f), Vector2D(1,1));
+	DrawPolygonLine(start, end);
+}
+
+// draws a line using polygon calls
+void SoftLine::DrawPolygonLine(vgui::Vertex_t start, vgui::Vertex_t end, float width)
+{
+	DrawPolygonLine(start.m_Position.x, start.m_Position.y, end.m_Position.x, end.m_Position.y, width);
+}
+
+void SoftLine::DrawPolygonLine(float x, float y, float x2, float y2, float width)
+{
+	// find long edge
+	Vector2D start(x, y);
+	Vector2D end(x2, y2);
+	Vector2D long_edge = end - start;
+	// normalize and rotate 90 degrees to get our short edge
+	Vector2D short_edge = long_edge;
+	short_edge.NormalizeInPlace();
+	float newx = cos(1.5708f) * short_edge.x - sin(1.5708f) * short_edge.y;
+	float newy = sin(1.5708f) * short_edge.x - cos(1.5708f) * short_edge.y;
+	short_edge.x = newx;
+	short_edge.y = newy;
+	short_edge *= width;
+	vgui::Vertex_t points[4] = 
+	{ 
+	vgui::Vertex_t( Vector2D(x, y) - short_edge * 0.5f, Vector2D(0,0) ), 
+	vgui::Vertex_t( Vector2D(x, y) - short_edge * 0.5f + long_edge, Vector2D(1,0) ), 
+	vgui::Vertex_t( Vector2D(x, y) + short_edge * 0.5f + long_edge, Vector2D(1,1) ), 
+	vgui::Vertex_t( Vector2D(x, y) + short_edge * 0.5f, Vector2D(0,1) ) 
+	}; 
+	vgui::surface()->DrawTexturedPolygon(4, points);
+}