upload "kind" alien swarm

game/client/swarm/vgui/polygonbutton.h

@@ -0,0 +1,65 @@
+// PolygonButton.h
+// Copyright (c) 2006 Turtle Rock Studios, Inc.
+
+#ifndef POLYGON_BUTTON_H
+#define POLYGON_BUTTON_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <vgui_controls/button.h>
+#include <vgui/isurface.h>
+
+//--------------------------------------------------------------------------------------------------------
+/**
+ * Button class that clips its visible bounds to an concave polygon (defined counter-clockwise).
+ * An optional second hotspot can be defined for capturing mouse input outside of the visible hotspot.
+ */
+class CPolygonButton : public vgui::Button
+{
+	DECLARE_CLASS_SIMPLE( CPolygonButton, vgui::Button );
+
+public:
+
+	CPolygonButton( vgui::Panel *parent, const char *panelName );
+
+	virtual void ApplySettings( KeyValues *data );
+
+	/**
+	 * Clip out cursor positions inside our overall rectangle that are outside our hotspot.
+	 */
+	virtual vgui::VPANEL IsWithinTraverse( int x, int y, bool traversePopups );
+
+	/**
+	 * Perform the standard layout, and scale our hotspot points - they are specified as a 0..1 percentage
+	 * of the button's full size.
+	 */
+	virtual void PerformLayout( void );
+
+	/**
+	 * Center the text in the extent that encompasses our hotspot.
+	 * TODO: allow the res file and/or the individual menu to specify a different center for text.
+	 */
+	virtual void ComputeAlignment( int &tx0, int &ty0, int &tx1, int &ty1 );
+	virtual void PaintBackground( void );
+	virtual void PaintBorder( void );
+	virtual void ApplySchemeSettings( vgui::IScheme *scheme );
+
+	virtual void UpdateHotspots( KeyValues *data );
+
+protected:
+	int m_nWhiteMaterial;
+
+	CUtlVector< Vector2D > m_unscaledHotspotPoints;
+	CUtlVector< Vector2D > m_unscaledVisibleHotspotPoints;
+	vgui::Vertex_t *m_hotspotPoints;
+	int m_numHotspotPoints;
+	vgui::Vertex_t *m_visibleHotspotPoints;
+	int m_numVisibleHotspotPoints;
+
+	Vector2D m_hotspotMins;
+	Vector2D m_hotspotMaxs;
+};
+
+
+#endif // POLYGON_BUTTON_H