First version of the SOurce SDK 2013

1 files changed, 433 insertions, 0 deletions

diff --git a/mp/src/vgui2/vgui_controls/FocusNavGroup.cpp b/mp/src/vgui2/vgui_controls/FocusNavGroup.cpp
new file mode 100644
index 00000000..10fc88ad
--- /dev/null
+++ b/mp/src/vgui2/vgui_controls/FocusNavGroup.cpp
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+//========= Copyright Valve Corporation, All rights reserved. ============//

+//

+// Purpose: 

+//

+// $NoKeywords: $

+//=============================================================================//

+

+#include <assert.h>

+

+#include <vgui/ISurface.h>

+#include <vgui/IVGui.h>

+#include <vgui/IPanel.h>

+#include <vgui/VGUI.h>

+#include <KeyValues.h>

+#include <tier0/dbg.h>

+

+#include <vgui_controls/Controls.h>

+#include <vgui_controls/FocusNavGroup.h>

+#include <vgui_controls/Panel.h>

+

+// memdbgon must be the last include file in a .cpp file!!!

+#include <tier0/memdbgon.h>

+

+using namespace vgui;

+

+//-----------------------------------------------------------------------------

+// Purpose: Constructor

+// Input  : *panel - parent panel

+//-----------------------------------------------------------------------------

+FocusNavGroup::FocusNavGroup(Panel *panel) : _mainPanel(panel)

+{

+	_currentFocus = NULL;

+	_topLevelFocus = false;

+	_defaultButton = NULL;

+    _currentDefaultButton = NULL;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Destructor

+//-----------------------------------------------------------------------------

+FocusNavGroup::~FocusNavGroup()

+{

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Sets the focus to the previous panel in the tab order

+// Input  : *panel - panel currently with focus

+//-----------------------------------------------------------------------------

+bool FocusNavGroup::RequestFocusPrev(VPANEL panel)

+{

+	if(panel==0)

+		return false;

+

+	_currentFocus = NULL;

+	int newPosition = 9999999;

+	if (panel)

+	{

+		newPosition = ipanel()->GetTabPosition(panel);

+	}

+

+	bool bFound = false;

+	bool bRepeat = true;

+	Panel *best = NULL;

+	while (1)

+	{

+		newPosition--;

+		if (newPosition > 0)

+		{

+			int bestPosition = 0;

+

+			// look for the next tab position

+			for (int i = 0; i < _mainPanel->GetChildCount(); i++)

+			{

+				Panel *child = _mainPanel->GetChild(i);

+				if (child && child->IsVisible() && child->IsEnabled() && child->GetTabPosition())

+				{

+					int tabPosition = child->GetTabPosition();

+					if (tabPosition == newPosition)

+					{

+						// we've found the right tab

+						best = child;

+						bestPosition = newPosition;

+

+						// don't loop anymore since we've found the correct panel

+						break;

+					}

+					else if (tabPosition < newPosition && tabPosition > bestPosition)

+					{

+						// record the match since this is the closest so far

+						bestPosition = tabPosition;

+						best = child;

+					}

+				}

+			}

+

+			if (!bRepeat)

+				break;

+

+			if (best)

+				break;

+		}

+		else

+		{

+			// reset new position for next loop

+			newPosition = 9999999;

+		}

+

+		// haven't found an item

+

+		if (!_topLevelFocus)

+		{

+			// check to see if we should push the focus request up

+			if (_mainPanel->GetVParent() && _mainPanel->GetVParent() != surface()->GetEmbeddedPanel())

+			{

+				// we're not a top level panel, so forward up the request instead of looping

+				if (ipanel()->RequestFocusPrev(_mainPanel->GetVParent(), _mainPanel->GetVPanel()))

+				{

+					bFound = true;

+					SetCurrentDefaultButton(NULL);

+					break;

+				}

+			}

+		}

+

+		// not found an item, loop back

+		newPosition = 9999999;

+		bRepeat = false;

+	}

+

+	if (best)

+	{

+		_currentFocus = best->GetVPanel();

+		best->RequestFocus(-1);

+		bFound = true;

+

+        if (!CanButtonBeDefault(best->GetVPanel()))

+        {

+            if (_defaultButton)

+            {

+                SetCurrentDefaultButton(_defaultButton);

+            }

+			else

+			{

+				SetCurrentDefaultButton(NULL);

+

+				// we need to ask the parent to set its default button

+				if (_mainPanel->GetVParent())

+				{

+					ivgui()->PostMessage(_mainPanel->GetVParent(), new KeyValues("FindDefaultButton"), NULL);

+				}

+			}

+        }

+        else

+        {

+            SetCurrentDefaultButton(best->GetVPanel());

+        }

+	}

+	return bFound;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Sets the focus to the previous panel in the tab order

+// Input  : *panel - panel currently with focus

+//-----------------------------------------------------------------------------

+bool FocusNavGroup::RequestFocusNext(VPANEL panel)

+{

+	// basic recursion guard, in case user has set up a bad focus hierarchy

+	static int stack_depth = 0;

+	stack_depth++;

+

+	_currentFocus = NULL;

+	int newPosition = 0;

+	if (panel)

+	{

+		newPosition = ipanel()->GetTabPosition(panel);

+	}

+

+	bool bFound = false;

+	bool bRepeat = true;

+	Panel *best = NULL;

+	while (1)

+	{

+		newPosition++;

+		int bestPosition = 999999;

+

+		// look for the next tab position

+		for (int i = 0; i < _mainPanel->GetChildCount(); i++)

+		{

+			Panel *child = _mainPanel->GetChild(i);

+			if ( !child )

+				continue;

+

+			if (child && child->IsVisible() && child->IsEnabled() && child->GetTabPosition())

+			{

+				int tabPosition = child->GetTabPosition();

+				if (tabPosition == newPosition)

+				{

+					// we've found the right tab

+					best = child;

+					bestPosition = newPosition;

+

+					// don't loop anymore since we've found the correct panel

+					break;

+				}

+				else if (tabPosition > newPosition && tabPosition < bestPosition)

+				{

+					// record the match since this is the closest so far

+					bestPosition = tabPosition;

+					best = child;

+				}

+			}

+		}

+

+		if (!bRepeat)

+			break;

+

+		if (best)

+			break;

+

+		// haven't found an item

+

+		// check to see if we should push the focus request up

+		if (!_topLevelFocus)

+		{

+			if (_mainPanel->GetVParent() && _mainPanel->GetVParent() != surface()->GetEmbeddedPanel())

+			{

+				// we're not a top level panel, so forward up the request instead of looping

+				if (stack_depth < 15)

+				{

+					if (ipanel()->RequestFocusNext(_mainPanel->GetVParent(), _mainPanel->GetVPanel()))

+					{

+						bFound = true;

+						SetCurrentDefaultButton(NULL);

+						break;

+					}

+

+					// if we find one then we break, otherwise we loop

+				}

+			}

+		}

+		

+		// loop back

+		newPosition = 0;

+		bRepeat = false;

+	}

+

+	if (best)

+	{

+		_currentFocus = best->GetVPanel();

+		best->RequestFocus(1);

+		bFound = true;

+

+        if (!CanButtonBeDefault(best->GetVPanel()))

+        {

+            if (_defaultButton)

+			{

+                SetCurrentDefaultButton(_defaultButton);

+			}

+			else

+			{

+				SetCurrentDefaultButton(NULL);

+

+				// we need to ask the parent to set its default button

+				if (_mainPanel->GetVParent())

+				{

+					ivgui()->PostMessage(_mainPanel->GetVParent(), new KeyValues("FindDefaultButton"), NULL);

+				}

+			}

+        }

+        else

+        {

+            SetCurrentDefaultButton(best->GetVPanel());

+        }

+	}

+

+	stack_depth--;

+	return bFound;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: sets the panel that owns this FocusNavGroup to be the root in the focus traversal heirarchy

+//-----------------------------------------------------------------------------

+void FocusNavGroup::SetFocusTopLevel(bool state)

+{

+	_topLevelFocus = state;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: sets panel which receives input when ENTER is hit

+//-----------------------------------------------------------------------------

+void FocusNavGroup::SetDefaultButton(Panel *panel)

+{

+	VPANEL vpanel = panel ? panel->GetVPanel() : NULL;

+	if ( vpanel == _defaultButton.Get() )

+		return;

+

+//	Assert(CanButtonBeDefault(vpanel));

+

+	_defaultButton = vpanel;

+	SetCurrentDefaultButton(_defaultButton);

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: sets panel which receives input when ENTER is hit

+//-----------------------------------------------------------------------------

+void FocusNavGroup::SetCurrentDefaultButton(VPANEL panel, bool sendCurrentDefaultButtonMessage)

+{

+	if (panel == _currentDefaultButton.Get())

+		return;

+

+	if ( sendCurrentDefaultButtonMessage && _currentDefaultButton.Get() != 0)

+	{

+		ivgui()->PostMessage(_currentDefaultButton, new KeyValues("SetAsCurrentDefaultButton", "state", 0), NULL);

+	}

+

+	_currentDefaultButton = panel;

+

+	if ( sendCurrentDefaultButtonMessage && _currentDefaultButton.Get() != 0)

+	{

+		ivgui()->PostMessage(_currentDefaultButton, new KeyValues("SetAsCurrentDefaultButton", "state", 1), NULL);

+	}

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: sets panel which receives input when ENTER is hit

+//-----------------------------------------------------------------------------

+VPANEL FocusNavGroup::GetCurrentDefaultButton()

+{

+	return _currentDefaultButton;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: sets panel which receives input when ENTER is hit

+//-----------------------------------------------------------------------------

+VPANEL FocusNavGroup::GetDefaultButton()

+{

+	return _defaultButton;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: finds the panel which is activated by the specified key

+// Input  : code - the keycode of the hotkey

+// Output : Panel * - NULL if no panel found

+//-----------------------------------------------------------------------------

+Panel *FocusNavGroup::FindPanelByHotkey(wchar_t key)

+{

+	for (int i = 0; i < _mainPanel->GetChildCount(); i++)

+	{

+		Panel *child = _mainPanel->GetChild(i);

+		if ( !child )

+			continue;

+

+		Panel *hot = child->HasHotkey(key);

+		if (hot && hot->IsVisible() && hot->IsEnabled())

+		{

+			return hot;

+		}

+	}

+	

+	return NULL;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+Panel *FocusNavGroup::GetDefaultPanel()

+{

+	for (int i = 0; i < _mainPanel->GetChildCount(); i++)

+	{

+		Panel *child = _mainPanel->GetChild(i);

+		if ( !child )

+			continue;

+

+		if (child->GetTabPosition() == 1)

+		{

+			return child;

+		}

+	}

+

+	return NULL;	// no specific panel set

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: 

+//-----------------------------------------------------------------------------

+Panel *FocusNavGroup::GetCurrentFocus()

+{

+	return _currentFocus ? ipanel()->GetPanel(_currentFocus, vgui::GetControlsModuleName()) : NULL;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Sets the current focus

+//-----------------------------------------------------------------------------

+VPANEL FocusNavGroup::SetCurrentFocus(VPANEL focus, VPANEL defaultPanel)

+{

+	_currentFocus = focus;

+

+    // if we haven't found a default panel yet, let's see if we know of one

+    if (defaultPanel == 0)

+    {

+        // can this focus itself by the default

+        if (CanButtonBeDefault(focus))

+        {

+            defaultPanel = focus;

+        }

+        else if (_defaultButton)        // do we know of a default button

+        {

+            defaultPanel = _defaultButton;

+        }

+    }

+

+    SetCurrentDefaultButton(defaultPanel);

+    return defaultPanel;

+}

+

+//-----------------------------------------------------------------------------

+// Purpose: Returns true if the specified panel can be the default

+//-----------------------------------------------------------------------------

+bool FocusNavGroup::CanButtonBeDefault(VPANEL panel)

+{

+	if( panel == 0 )

+		return false;

+

+	KeyValues *data = new KeyValues("CanBeDefaultButton");

+

+	bool bResult = false;

+	if (ipanel()->RequestInfo(panel, data))

+	{

+		bResult = (data->GetInt("result") == 1);

+	}

+	data->deleteThis();

+	return bResult;

+}
\ No newline at end of file