You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
235 lines
8.1 KiB
235 lines
8.1 KiB
/* @doc INTERNAL
|
|
*
|
|
* @module _CBHOST.H Combobox Host for Window's Rich Edit Control |
|
|
*
|
|
*
|
|
* Original Author: <nl>
|
|
* Jerry Kim
|
|
*
|
|
* History: <nl>
|
|
* 01/30/98 v-jerrki created
|
|
*/
|
|
#ifndef _CBHOST_H
|
|
#define _CBHOST_H
|
|
|
|
#include "_host.h"
|
|
#define CB_LISTBOXID 1000
|
|
#define CB_EDITBOXID 1001
|
|
|
|
#define ITEM_MSG_DRAWLIST 1
|
|
#define ITEM_MSG_DRAWCOMBO 2
|
|
#define ITEM_MSG_DELETE 3
|
|
|
|
|
|
class CCmbBxWinHost : public CTxtWinHost
|
|
{
|
|
friend LRESULT CALLBACK RichComboBoxWndProc(HWND, UINT, WPARAM, LPARAM);
|
|
|
|
public:
|
|
typedef enum { // enumeration determining type of combo box
|
|
kSimple = 1,
|
|
kDropDown = 2,
|
|
kDropDownList = 3
|
|
} Combotype;
|
|
|
|
#ifndef ACCESSIBILITY
|
|
public:
|
|
// -----------------------------
|
|
// IUnknown interface
|
|
// -----------------------------
|
|
virtual HRESULT WINAPI QueryInterface(REFIID riid, void **ppvObject);
|
|
#endif
|
|
|
|
public:
|
|
unsigned int _fRightAlign:1; // Determines if the combo box should be right aligned
|
|
unsigned int _fListVisible:1; // Determines if list is visible
|
|
unsigned int _fOwnerDraw:1; // owner draw combo box
|
|
unsigned int _fFocus:1; // do we have the focus?
|
|
unsigned int _fMousedown:1; // if the left button was down
|
|
unsigned int _fVisible:1; // window is visible
|
|
unsigned int _fEnabled:1; // window is enabled
|
|
unsigned int _fNoIntegralHeight:1; // no integral height
|
|
unsigned int _fCapture:1; // determines if the combo box has mouse cursor captured or not
|
|
unsigned int _fResizing:1; // flag to indicate we are resizing the window
|
|
unsigned int _fExtendedUI:1; // flag indicating if extended ui is used
|
|
unsigned int _fLBCBMessage:1; // flag indicating the message is LBCB_TRACKING
|
|
unsigned int _fIgnoreChange:1; // flag indicating there was an internal change of text in
|
|
// the edit control
|
|
unsigned int _fIgnoreUpdate:1; // flag indicating if we should ignore the update flag, we need
|
|
// this flag because there will be cases where updateWindow is
|
|
// needed but we don't want to fire the notification
|
|
|
|
HWND _hwndList; // window handle of listbox
|
|
HCURSOR _hcurOld; // handle to the mouse cursor
|
|
|
|
protected:
|
|
RECT _rcWindow; // rect of window which the combo box was created with
|
|
RECT _rcButton; // rect of button
|
|
RECT _rcList; // rect of listbox
|
|
|
|
// we have to have a minimum inset for either the right or left
|
|
// to account for the button for the combo box
|
|
int _dxRInset; // minimum right inset
|
|
int _dxLInset; // minimum left inset
|
|
|
|
int _dxROffset; // indents for right and left these values should be used
|
|
int _dxLOffset; // with _dxRInset/_dxLInset to properly calculate the indents
|
|
|
|
int _dyFont; // Height of the current font, may not necessarily be the system font
|
|
int _dyEdit; // height of items
|
|
|
|
int _cyCombo; // Height of the combo box
|
|
int _cxCombo; // Width of the combo box
|
|
int _cyList; // Height of the listbox
|
|
|
|
long _nCursor; // last selected cursor -2 by default
|
|
BOOL _bSelOk; // used to help in determining what kind of notification to give
|
|
|
|
UINT _idCtrl; // ID of control
|
|
Combotype _cbType; // current combo box style
|
|
CLstBxWinHost* _plbHost; // pointer to listbox host
|
|
|
|
protected:
|
|
|
|
// Draws the combo button
|
|
void DrawButton(HDC hdc, BOOL bDown);
|
|
|
|
// Sets the edit controls text to item of the list box
|
|
void AutoUpdateEdit(int i);
|
|
|
|
// Hilite the edit control
|
|
void HiliteEdit(BOOL bSelect);
|
|
|
|
// resizes the list box
|
|
void SetDropSize(RECT* prc);
|
|
|
|
// set the edit size
|
|
void SetSizeEdit(int nLeft, int nTop, int nRight, int nBottom);
|
|
|
|
public:
|
|
// Constructor / Destructor
|
|
CCmbBxWinHost();
|
|
virtual ~CCmbBxWinHost();
|
|
|
|
// initialization function
|
|
virtual BOOL Init(HWND, const CREATESTRUCT *);
|
|
|
|
// Window creation/destruction
|
|
static LRESULT OnNCCreate(HWND hwnd, const CREATESTRUCT *pcs);
|
|
static void OnNCDestroy(CCmbBxWinHost *ped);
|
|
virtual LRESULT OnCreate(const CREATESTRUCT *pcs);
|
|
|
|
// Edit control Text helper functions
|
|
LRESULT GetEditText(LPTSTR szStr, int nSize);
|
|
LRESULT GetTextLength();
|
|
|
|
// Draws the focus rect for the edit control
|
|
void DrawEditFocus(HDC);
|
|
|
|
// Sets the text in the edit control to the text of the current item in the
|
|
// list box
|
|
void UpdateEditBox();
|
|
|
|
// selects the item which has the same text string as the edit control
|
|
int UpdateListBox(BOOL);
|
|
|
|
// hides the listbox
|
|
BOOL HideListBox(BOOL, BOOL);
|
|
|
|
// shows the list box
|
|
void ShowListBox(BOOL);
|
|
|
|
// Used as a way for the listbox to communicate to the combo box about a selection
|
|
void SetSelectionInfo(BOOL bOk, int nIdx);
|
|
|
|
// Update the window but don't send the notification
|
|
void UpdateCbWindow()
|
|
{
|
|
_fIgnoreUpdate = 1;
|
|
TxViewChange(TRUE);
|
|
_fIgnoreUpdate = 0;
|
|
}
|
|
|
|
/////////////////////////////// message handlers /////////////////////////////////
|
|
|
|
// Richedit message
|
|
LRESULT OnSetTextEx(WPARAM wparam, LPARAM lparam);
|
|
|
|
// Keyboard messages
|
|
virtual LRESULT OnKeyDown(WORD vKey, DWORD dwFlags);
|
|
virtual LRESULT OnChar(WORD vKey, DWORD dwFlags);
|
|
virtual LRESULT OnSyskeyDown(WORD vKey, DWORD dwFlags);
|
|
|
|
// mouse messages
|
|
LRESULT OnLButtonUp(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnMouseMove(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnMouseWheel(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnSetCursor(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnLButtonDown(WPARAM wparam, LPARAM lparam);
|
|
|
|
// focus messages
|
|
LRESULT OnSetFocus(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnKillFocus(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnCaptureChanged(WPARAM wparam, LPARAM lparam);
|
|
|
|
// window messages
|
|
LRESULT OnPaint(WPARAM, LPARAM);
|
|
HRESULT OnCommand(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnSize(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnGetDlgCode(WPARAM wparam, LPARAM lparam);
|
|
LRESULT OnEnable(WPARAM wparam, LPARAM lparam);
|
|
|
|
//@cmember Notify host of events
|
|
virtual HRESULT TxNotify(DWORD iNotify, void *pv);
|
|
|
|
//@cmember Changes the mouse cursor
|
|
virtual HCURSOR TxSetCursor2(HCURSOR hcur, BOOL bText)
|
|
{ return (hcur) ? ::SetCursor(hcur) : ::GetCursor();}
|
|
|
|
///////////////////////// combo box message handlers ////////////////////////////
|
|
// Calculates the rect's and height's of all the controls
|
|
BOOL CbCalcControlRects(RECT* prc, BOOL bCalcChange);
|
|
|
|
// Retrieves the item height for either the edit or list box
|
|
LRESULT CbGetItemHeight(BOOL bEdit);
|
|
|
|
// sets the item height for either the edit or list box
|
|
LRESULT CbSetItemHeight(BOOL bEdit, int nHeight);
|
|
|
|
// sets extendedUI mode
|
|
LRESULT CbSetExtendedUI(BOOL bExtendedUI);
|
|
|
|
// retrieves the current extendedUI mode
|
|
LRESULT CbGetExtendedUI() const {return _fExtendedUI;}
|
|
|
|
// forwards the WM_DRAWITEM, WM_DELETEITEM messages to the parent window
|
|
LRESULT CbMessageItemHandler(HDC, int, WPARAM, LPARAM);
|
|
|
|
#ifndef NOACCESSIBILITY
|
|
////////////////////////// IAccessible Methods /////////////////////////////////
|
|
HRESULT InitTypeInfo();
|
|
|
|
STDMETHOD(get_accParent)(IDispatch **ppdispParent);
|
|
STDMETHOD(get_accChildCount)(long *pcountChildren);
|
|
STDMETHOD(get_accChild)(VARIANT varChild, IDispatch **ppdispChild);
|
|
STDMETHOD(get_accName)(VARIANT varChild, BSTR *pszName);
|
|
STDMETHOD(get_accValue)(VARIANT varChild, BSTR *pszValue);
|
|
STDMETHOD(get_accRole)(VARIANT varChild, VARIANT *pvarRole);
|
|
STDMETHOD(get_accState)(VARIANT varChild, VARIANT *pvarState);
|
|
STDMETHOD(get_accKeyboardShortcut)(VARIANT varChild, BSTR *pszKeyboardShortcut);
|
|
STDMETHOD(get_accFocus)(VARIANT *pvarChild);
|
|
STDMETHOD(get_accSelection)(VARIANT *pvarChildren);
|
|
STDMETHOD(get_accDefaultAction)(VARIANT varChild, BSTR *pszDefaultAction);
|
|
STDMETHOD(accSelect)(long flagsSelect, VARIANT varChild);
|
|
STDMETHOD(accLocation)(long *pxLeft, long *pyTop, long *pcxWidth, long *pcyHeight, VARIANT varChild);
|
|
STDMETHOD(accNavigate)(long navDir, VARIANT varStart, VARIANT *pvarEndUpAt);
|
|
STDMETHOD(accHitTest)(long xLeft, long yTop, VARIANT *pvarChild);
|
|
STDMETHOD(accDoDefaultAction)(VARIANT varChild);
|
|
#endif // NOACCESSIBILITY
|
|
|
|
};
|
|
|
|
|
|
#endif // _CBHOST_H
|
|
|
|
|