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game/client/game_controls/mouseoverpanelbutton.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef MOUSEOVERPANELBUTTON_H
+#define MOUSEOVERPANELBUTTON_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <vgui/IScheme.h>
+#include <vgui_controls/Button.h>
+#include <vgui/KeyCode.h>
+#include <filesystem.h>
+
+extern vgui::Panel *g_lastPanel;
+extern vgui::Button *g_lastButton;
+
+//-----------------------------------------------------------------------------
+// Purpose: Triggers a new panel when the mouse goes over the button
+//    
+// the new panel has the same dimensions as the passed templatePanel and is of
+// the same class.
+//
+// must at least inherit from vgui::EditablePanel to support LoadControlSettings
+//-----------------------------------------------------------------------------
+template <class T>
+class MouseOverButton : public vgui::Button
+{
+private:
+	DECLARE_CLASS_SIMPLE( MouseOverButton, vgui::Button );
+	
+public:
+	MouseOverButton(vgui::Panel *parent, const char *panelName, T *templatePanel ) :
+					Button( parent, panelName, "MouseOverButton")
+	{
+		m_pPanel = new T( parent, NULL );
+		m_pPanel ->SetVisible( false );
+
+		// copy size&pos from template panel
+		int x,y,wide,tall;
+		templatePanel->GetBounds( x, y, wide, tall );
+		m_pPanel->SetBounds( x, y, wide, tall );
+		int px, py;
+		templatePanel->GetPinOffset( px, py );
+		int rx, ry;
+		templatePanel->GetResizeOffset( rx, ry );
+		// Apply pin settings from template, too
+		m_pPanel->SetAutoResize( templatePanel->GetPinCorner(), templatePanel->GetAutoResize(), px, py, rx, ry );
+
+		m_bPreserveArmedButtons = false;
+		m_bUpdateDefaultButtons = false;
+	}
+
+	virtual void SetPreserveArmedButtons( bool bPreserve ){ m_bPreserveArmedButtons = bPreserve; }
+	virtual void SetUpdateDefaultButtons( bool bUpdate ){ m_bUpdateDefaultButtons = bUpdate; }
+
+	virtual void ShowPage()
+	{
+		if( m_pPanel )
+		{
+			m_pPanel->SetVisible( true );
+			m_pPanel->MoveToFront();
+			g_lastPanel = m_pPanel;
+		}
+	}
+	
+	virtual void HidePage()
+	{
+		if ( m_pPanel )
+		{
+			m_pPanel->SetVisible( false );
+		}
+	}
+
+	const char *GetClassPage( const char *className )
+	{
+		static char classPanel[ _MAX_PATH ];
+		Q_snprintf( classPanel, sizeof( classPanel ), "classes/%s.res", className);
+
+		if ( g_pFullFileSystem->FileExists( classPanel, IsX360() ? "MOD" : "GAME" ) )
+		{
+		}
+		else if (g_pFullFileSystem->FileExists( "classes/default.res", IsX360() ? "MOD" : "GAME" ) )
+		{
+			Q_snprintf ( classPanel, sizeof( classPanel ), "classes/default.res" );
+		}
+		else
+		{
+			return NULL;
+		}
+
+		return classPanel;
+	}
+
+#ifdef REFRESH_CLASSMENU_TOOL
+
+	void RefreshClassPage( void )
+	{
+		m_pPanel->LoadControlSettings( GetClassPage( GetName() ) );
+	}
+
+#endif
+
+	virtual void ApplySettings( KeyValues *resourceData ) 
+	{
+		BaseClass::ApplySettings( resourceData );
+
+		// name, position etc of button is set, now load matching
+		// resource file for associated info panel:
+		m_pPanel->LoadControlSettings( GetClassPage( GetName() ) );
+	}		
+
+	T *GetClassPanel( void ) { return m_pPanel; }
+
+	virtual void OnCursorExited()
+	{
+		if ( !m_bPreserveArmedButtons )
+		{
+			BaseClass::OnCursorExited();
+		}
+	}
+
+	virtual void OnCursorEntered() 
+	{
+		BaseClass::OnCursorEntered();
+
+		if ( !IsEnabled() )
+			return;
+
+		// are we updating the default buttons?
+		if ( m_bUpdateDefaultButtons )
+		{
+			SetAsDefaultButton( 1 );
+		}
+
+		// are we preserving the armed state (and need to turn off the old button)?
+		if ( m_bPreserveArmedButtons )
+		{
+			if ( g_lastButton && g_lastButton != this )
+			{
+				g_lastButton->SetArmed( false );
+			}
+
+			g_lastButton = this;
+		}
+
+		// turn on our panel (if it isn't already)
+		if ( m_pPanel && ( !m_pPanel->IsVisible() ) )
+		{
+			// turn off the previous panel
+			if ( g_lastPanel && g_lastPanel->IsVisible() )
+			{
+				g_lastPanel->SetVisible( false );
+			}
+
+			ShowPage();
+		}
+	}
+
+	virtual void OnKeyCodeReleased( vgui::KeyCode code )
+	{
+		BaseClass::OnKeyCodeReleased( code );
+
+		if ( m_bPreserveArmedButtons )
+		{
+			if ( g_lastButton )
+			{
+				g_lastButton->SetArmed( true );
+			}
+		}
+	}
+
+private:
+
+	T *m_pPanel;
+	bool m_bPreserveArmedButtons;
+	bool m_bUpdateDefaultButtons;
+};
+
+#define MouseOverPanelButton MouseOverButton<vgui::EditablePanel>
+
+#endif // MOUSEOVERPANELBUTTON_H