statusbar.hpp
#ifndef statusbarH
#define statusbarH
#include <Windows.h>
#include <list>
namespace NSTS {
class CStatusBar {
public:
CStatusBar (void);
~CStatusBar (void);
public:
bool Init (HWND hParent, int iSize, int agiParts[], HINSTANCE hInst);
void Destroy (void);
bool ResetParts (int iSize, int agiParts[]);
void Flash (void);
bool InsertCtrl (int iPos, HWND hwnd);
bool RemoveCtrl (int iPos);
bool SetText (int iPos, const TCHAR* pszText);
bool GetText (int iPos, TCHAR* pszText);
bool SetBk (COLORREF clrBk);
COLORREF GetBk (void);
bool SetIcon (int iPos, HICON hIcon);
HICON GetIcon (int iPos);
bool SetIcon (int iPos, UINT uId) {
HICON hIcon = LoadIcon (m_hInst, MAKEINTRESOURCE (uId));
bool fRet = SetIcon (iPos, hIcon);
DestroyIcon (hIcon);
return fRet;
};
bool SetTip (int iPos, const TCHAR* pszText);
bool GetTip (int iPos, TCHAR* pszText);
bool SetMinHeight (int iHeight);
int GetHeight (void);
bool SetUnicode (BOOL fUnicode);
bool IsUnicode (void);
HWND GetParent (void) const { return m_hParent; };
HWND GetSelf (void) const { return m_hSelf; };
private:
void InsertCtrlCore (int iPos, HWND hwnd);
private:
HWND m_hSelf;
HWND m_hParent;
int m_iSize;
HINSTANCE m_hInst;
COLORREF m_clrBk;
struct SBControl {
int iPos;
HWND hwnd;
};
std::list <CStatusBar::SBControl> m_lstCtrls; // used for RemoveCtrl
};
}
#endif // statusbarH
statusbar.cpp
#include "statusbar.hpp"
#include <commctrl.h>
namespace NSTS {
CStatusBar::
CStatusBar (void)
{
m_hSelf = m_hParent = NULL;
m_iSize = 0;
m_hInst = NULL;
m_clrBk = CLR_DEFAULT;
m_lstCtrls.clear ();
}
CStatusBar::
~CStatusBar (void)
{
if (m_hSelf != NULL) {
if (IsWindow (m_hSelf)) {
DestroyWindow (m_hSelf);
}
m_hSelf = NULL;
}
m_hParent = NULL;
m_hInst = NULL;
m_clrBk = CLR_DEFAULT;
m_lstCtrls.clear ();
}
bool
CStatusBar::
Init (HWND hParent, int iSize, int agiParts[], HINSTANCE hInst)
{
if (hParent == NULL || !IsWindow (hParent) ||
iSize <=0 ||
agiParts == NULL ||
hInst == NULL) {
return false;
}
InitCommonControls ();
m_hInst = hInst;
m_hSelf = CreateWindowEx(
0, // no extended styles
STATUSCLASSNAME, // name of status bar class
(LPCTSTR) NULL, // no text when first created
SBT_TOOLTIPS | SBARS_SIZEGRIP | WS_CHILD | WS_VISIBLE, // creates a child window
0, 0, 0, 0, // ignores size and position
hParent, // handle to parent window
NULL, // child window identifier
hInst, // handle to application instance
NULL); // no window creation data
if (m_hSelf == NULL) {
return false;
}
return ResetParts (iSize, agiParts);
}
void
CStatusBar::
Destroy (void)
{
if (m_hSelf != NULL && IsWindow (m_hSelf)) {
DestroyWindow (m_hSelf);
m_hSelf = NULL;
}
}
bool
CStatusBar::
ResetParts (int iSize, int agiParts[])
{
HLOCAL hloc;
int* piParts;
int i;
std::list <CStatusBar::SBControl>::iterator it;
if (m_hSelf == NULL || !IsWindow (m_hSelf)) {
return false;
}
hloc = LocalAlloc (LHND, sizeof (int) * iSize);
if (hloc == NULL) {
return false;
}
piParts = (int*)LocalLock (hloc);
for (i = 0; i < iSize; ++i) {
piParts [i] = agiParts [i];
}
SendMessage (m_hSelf, SB_SETPARTS, (WPARAM)iSize, (LPARAM)piParts);
LocalUnlock (hloc);
LocalFree (hloc);
m_iSize = iSize;
for (it = m_lstCtrls.begin (); it != m_lstCtrls.end (); ++it) {
if (it->hwnd != NULL && IsWindow (it->hwnd)) {
InsertCtrlCore (it->iPos, it->hwnd);
}
}
return true;
}
void
CStatusBar::
Flash (void)
{
if (m_hSelf != NULL && IsWindow (m_hSelf)) {
SendMessage (m_hSelf, WM_SIZE, (WPARAM)0, (LPARAM)0);
}
}
void
CStatusBar::
InsertCtrlCore (int iPos, HWND hwnd)
{
RECT rcPart, rcCtrl;
int iPartWidth, iCtrlWidth, iPartHeight, iCtrlHeight;
int iWidth, iHeight, iX, iY;
/** HWND, draw it */
SendMessage (m_hSelf, SB_GETRECT, (WPARAM)iPos, (LPARAM)&rcPart);
GetWindowRect (hwnd, &rcCtrl);
iPartWidth = rcPart.right - rcPart.left;
iPartHeight = rcPart.bottom - rcPart.top;
iCtrlWidth = rcCtrl.right - rcCtrl.left;
iCtrlHeight = rcCtrl.bottom - rcCtrl.top;
iX = rcPart.left;
if (iPartWidth < iCtrlWidth) {
iWidth = iPartWidth;
} else {
iWidth = iCtrlWidth;
}
if (iPartHeight <= iCtrlHeight) {
iHeight = iPartHeight;
iY = rcPart.top;
} else {
iHeight = iCtrlHeight;
iY = rcPart.top + (iPartHeight - iCtrlHeight) / 2;
}
/** set parent */
SetParent (hwnd, m_hSelf);
/** move it to the correct pos */
MoveWindow (
hwnd,
iX,
iY,
iWidth,
iHeight,
FALSE);
/** show it */
ShowWindow (hwnd, SW_SHOW);
}
bool
CStatusBar::
InsertCtrl (int iPos, HWND hwnd)
{
CStatusBar::SBControl ctrl = {iPos, hwnd};
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
hwnd == NULL || !IsWindow (hwnd) ||
iPos < 0 || iPos >= m_iSize) {
return false;
}
InsertCtrlCore (iPos, hwnd);
m_lstCtrls.push_back (ctrl);
return true;
}
bool
CStatusBar::
RemoveCtrl (int iPos)
{
std::list <CStatusBar::SBControl>::iterator it;
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iPos < 0 || iPos >= m_iSize) {
return false;
}
for (it = m_lstCtrls.begin (); it != m_lstCtrls.end (); ++it) {
if (it->iPos == iPos) {
if (it->hwnd != NULL && IsWindow (it->hwnd)) {
DestroyWindow (it->hwnd);
m_lstCtrls.erase (it);
return true;
}
m_lstCtrls.erase (it);
return false;
}
}
return false;
}
bool
CStatusBar::
SetText (int iPos, const TCHAR* pszText)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
pszText == NULL ||
iPos < 0 || iPos >= m_iSize) {
return false;
}
return SendMessage (m_hSelf, SB_SETTEXT, (WPARAM)iPos, (LPARAM)pszText);
}
bool
CStatusBar::
GetText (int iPos, TCHAR* pszText)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
pszText == NULL ||
iPos < 0 || iPos >= m_iSize) {
return false;
}
SendMessage (m_hSelf, SB_GETTEXT, (WPARAM)iPos, (LPARAM)pszText);
return true;
}
bool
CStatusBar::
SetBk (COLORREF clrBk)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf)) {
return false;
}
m_clrBk = SendMessage (m_hSelf, SB_SETBKCOLOR, (WPARAM)0, (LPARAM)clrBk);
return true;
}
COLORREF
CStatusBar::
GetBk (void)
{
return m_clrBk;
}
bool
CStatusBar::
SetIcon (int iPos, HICON hIcon)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iPos < 0 || iPos >= m_iSize ||
hIcon == NULL) {
return false;
}
return SendMessage (m_hSelf, SB_SETICON, (WPARAM)iPos, (LPARAM)hIcon);
}
HICON
CStatusBar::
GetIcon (int iPos)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iPos < 0 || iPos >= m_iSize) {
return NULL;
}
return (HICON)SendMessage (m_hSelf, SB_GETICON, (WPARAM)iPos, (LPARAM)0);
}
bool
CStatusBar::
SetTip (int iPos, const TCHAR* pszTip)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iPos < 0 || iPos >= m_iSize ||
pszTip == NULL) {
return false;
}
SendMessage (m_hSelf, SB_SETTIPTEXT, (WPARAM)iPos, (LPARAM)pszTip);
return true;
}
bool
CStatusBar::
GetTip (int iPos, TCHAR* pszTip)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iPos < 0 || iPos >= m_iSize ||
pszTip == NULL) {
return false;
}
SendMessage (m_hSelf, SB_GETTIPTEXT, (WPARAM)iPos, (LPARAM)pszTip);
return true;
}
bool
CStatusBar::
SetMinHeight (int iHeight)
{
std::list <CStatusBar::SBControl>::iterator it;
if (m_hSelf == NULL || !IsWindow (m_hSelf) ||
iHeight < 0) {
return false;
}
SendMessage (m_hSelf, SB_SETMINHEIGHT, (WPARAM)iHeight, (LPARAM)0);
Flash ();
for (it = m_lstCtrls.begin (); it != m_lstCtrls.end (); ++it) {
if (it->hwnd != NULL && IsWindow (it->hwnd)) {
InsertCtrlCore (it->iPos, it->hwnd);
}
}
return true;
}
int
CStatusBar::
GetHeight (void)
{
RECT rect;
if (m_hSelf == NULL || !IsWindow (m_hSelf)) {
return 0;
}
if (GetWindowRect (m_hSelf, &rect)) {
return (rect.bottom - rect.top);
}
return 0;
}
bool
CStatusBar::
SetUnicode (BOOL fUnicode)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf)) {
return false;
}
SendMessage (m_hSelf, SB_SETUNICODEFORMAT, (WPARAM)fUnicode, (LPARAM)0);
return true;
}
bool
CStatusBar::
IsUnicode (void)
{
if (m_hSelf == NULL || !IsWindow (m_hSelf)) {
return false;
}
return SendMessage (m_hSelf, SB_GETUNICODEFORMAT, (WPARAM)0, (LPARAM)0);
}
}
Usage:
NSTS::CStatusBar sb;
extern HWND hParent;
extern HINSTANCE hInst;
int i = 3;
int lens[3] = {100, 100, -1};
sb.Init (hParent, 3, lens, hInst);
sb.SetBk (...);
sb.InsertCtrl (hwnd);
...
------
在父窗口中，WM_SIZE:
sb.Flash ();