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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef COMBOBOX_H
#define COMBOBOX_H
#ifdef _WIN32
#pragma once
#endif
#include <vgui_controls/TextEntry.h>
#include <vgui_controls/Menu.h>
#include <vgui_controls/Button.h>
namespace vgui
{
//-----------------------------------------------------------------------------
// Purpose: Scroll bar button
//-----------------------------------------------------------------------------
class ComboBoxButton : public vgui::Button
{
public:
ComboBoxButton(ComboBox *parent, const char *panelName, const char *text);
virtual void ApplySchemeSettings(IScheme *pScheme);
virtual IBorder *GetBorder(bool depressed, bool armed, bool selected, bool keyfocus);
virtual void OnCursorExited();
virtual Color GetButtonBgColor()
{
if (IsEnabled())
return Button::GetButtonBgColor();
return m_DisabledBgColor;
}
private:
Color m_DisabledBgColor;
};
//-----------------------------------------------------------------------------
// Purpose: Text entry with drop down options list
//-----------------------------------------------------------------------------
class ComboBox : public TextEntry
{
DECLARE_CLASS_SIMPLE( ComboBox, TextEntry );
public:
ComboBox(Panel *parent, const char *panelName, int numLines, bool allowEdit);
~ComboBox();
// functions designed to be overriden
virtual void OnShowMenu(Menu *menu) {}
virtual void OnHideMenu(Menu *menu) {}
// Set the number of items in the drop down menu.
virtual void SetNumberOfEditLines( int numLines );
// Add an item to the drop down
virtual int AddItem(const char *itemText, const KeyValues *userData);
virtual int AddItem(const wchar_t *itemText, const KeyValues *userData);
virtual int GetItemCount() const;
int GetItemIDFromRow( int row );
// update the item
virtual bool UpdateItem(int itemID, const char *itemText,const KeyValues *userData);
virtual bool UpdateItem(int itemID, const wchar_t *itemText, const KeyValues *userData);
virtual bool IsItemIDValid(int itemID);
// set the enabled state of an item
virtual void SetItemEnabled(const char *itemText, bool state);
virtual void SetItemEnabled(int itemID, bool state);
// Removes a single item
void DeleteItem( int itemID );
// Remove all items from the drop down menu
void RemoveAll();
// deprecated, use above
void DeleteAllItems() { RemoveAll(); }
// Sorts the items in the list - FIXME does nothing
virtual void SortItems();
// Set the visiblity of the drop down menu button.
virtual void SetDropdownButtonVisible(bool state);
// Return true if the combobox current has the dropdown menu open
virtual bool IsDropdownVisible();
// Activate the item in the menu list,as if that
// menu item had been selected by the user
MESSAGE_FUNC_INT( ActivateItem, "ActivateItem", itemID );
void ActivateItemByRow(int row);
void SilentActivateItem(int itemID); // Sets the menu to the appropriate row without sending a TextChanged message
void SilentActivateItemByRow(int row); // Sets the menu to the appropriate row without sending a TextChanged message
int GetActiveItem();
KeyValues *GetActiveItemUserData();
KeyValues *GetItemUserData(int itemID);
void GetItemText( int itemID, OUT_Z_BYTECAP(bufLenInBytes) wchar_t *text, int bufLenInBytes );
void GetItemText( int itemID, OUT_Z_BYTECAP(bufLenInBytes) char *text, int bufLenInBytes );
// sets a custom menu to use for the dropdown
virtual void SetMenu( Menu *menu );
virtual Menu *GetMenu() { return m_pDropDown; }
// Layout the format of the combo box for drawing on screen
virtual void PerformLayout();
/* action signals
"TextChanged" - signals that the text has changed in the combo box
*/
virtual void ShowMenu();
virtual void HideMenu();
virtual void OnKillFocus();
MESSAGE_FUNC( OnMenuClose, "MenuClose" );
virtual void DoClick();
virtual void OnSizeChanged(int wide, int tall);
virtual void SetOpenDirection(Menu::MenuDirection_e direction);
virtual void SetFont( HFont font );
virtual void SetUseFallbackFont( bool bState, HFont hFallback );
ComboBoxButton *GetComboButton( void ) { return m_pButton; }
protected:
// overrides
virtual void OnMousePressed(MouseCode code);
virtual void OnMouseDoublePressed(MouseCode code);
MESSAGE_FUNC( OnMenuItemSelected, "MenuItemSelected" );
virtual void OnCommand( const char *command );
virtual void ApplySchemeSettings(IScheme *pScheme);
virtual void ApplySettings( KeyValues *pInResourceData );
virtual void OnCursorEntered();
virtual void OnCursorExited();
// custom message handlers
MESSAGE_FUNC_WCHARPTR( OnSetText, "SetText", text );
virtual void OnSetFocus(); // called after the panel receives the keyboard focus
#ifdef _X360
virtual void OnKeyCodePressed(KeyCode code);
#endif
virtual void OnKeyCodeTyped(KeyCode code);
virtual void OnKeyTyped(wchar_t unichar);
void SelectMenuItem(int itemToSelect);
void MoveAlongMenuItemList(int direction);
void MoveToFirstMenuItem();
void MoveToLastMenuItem();
private:
void DoMenuLayout();
Menu *m_pDropDown;
ComboBoxButton *m_pButton;
bool m_bPreventTextChangeMessage;
//=============================================================================
// HPE_BEGIN:
// [pfreese] This member variable is never initialized and not used correctly
//=============================================================================
// bool m_bAllowEdit;
//=============================================================================
// HPE_END
//=============================================================================
bool m_bHighlight;
Menu::MenuDirection_e m_iDirection;
int m_iOpenOffsetY;
char m_szBorderOverride[64];
};
} // namespace vgui
#endif // COMBOBOX_H
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