Source code of Windows XP (NT5)
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/*************************************************
* ui.c *
* *
* Copyright (C) 1999 Microsoft Inc. *
* *
*************************************************/
#include <windows.h>
#include <immdev.h>
#include "imeattr.h"
#include "imedefs.h"
/**********************************************************************/
/* CreateUIWindow() */
/**********************************************************************/
void PASCAL CreateUIWindow( // create composition window
HWND hUIWnd)
{
HGLOBAL hUIPrivate;
LPUIPRIV lpUIPrivate;
// create storage for UI setting
hUIPrivate = GlobalAlloc(GHND, sizeof(UIPRIV));
if (!hUIPrivate) { // Oh! Oh!
return;
}
SetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE, (LONG_PTR)hUIPrivate);
// set the default position for UI window, it is hide now
SetWindowPos(hUIWnd, NULL, 0, 0, 0, 0, SWP_NOACTIVATE|SWP_NOZORDER);
ShowWindow(hUIWnd, SW_SHOWNOACTIVATE);
lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
if (!lpUIPrivate) { // can not draw candidate window
return;
}
GlobalUnlock(hUIPrivate);
return;
}
/**********************************************************************/
/* DestroyUIWindow() */
/**********************************************************************/
void PASCAL DestroyUIWindow( // destroy composition window
HWND hUIWnd)
{
HGLOBAL hUIPrivate;
LPUIPRIV lpUIPrivate;
hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
if (!hUIPrivate) { // Oh! Oh!
return;
}
lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
if (!lpUIPrivate) { // Oh! Oh!
return;
}
// composition window need to be destroyed
if (lpUIPrivate->hCompWnd) {
DestroyWindow(lpUIPrivate->hCompWnd);
}
GlobalUnlock(hUIPrivate);
// free storage for UI settings
GlobalFree(hUIPrivate);
return;
}
/**********************************************************************/
/* ShowUI() */
/**********************************************************************/
void PASCAL ShowUI( // show the sub windows
HWND hUIWnd,
int nShowCmd)
{
HIMC hIMC;
LPINPUTCONTEXT lpIMC;
LPPRIVCONTEXT lpImcP;
HGLOBAL hUIPrivate;
LPUIPRIV lpUIPrivate;
if (nShowCmd == SW_HIDE) {
} else if (!(hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC))) {
nShowCmd = SW_HIDE;
} else if (!(lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC))) {
nShowCmd = SW_HIDE;
} else if (!(lpImcP = (LPPRIVCONTEXT)ImmLockIMCC(lpIMC->hPrivate))) {
ImmUnlockIMC(hIMC);
nShowCmd = SW_HIDE;
} else {
}
if (nShowCmd == SW_HIDE) {
ShowComp(hUIWnd, nShowCmd);
return;
}
hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
if (!hUIPrivate) { // can not darw status window
goto ShowUIUnlockIMCC;
}
lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
if (!lpUIPrivate) { // can not draw status window
goto ShowUIUnlockIMCC;
}
if ((lpUIPrivate->fdwSetContext & ISC_SHOWUICOMPOSITIONWINDOW)
#if 0
&& (lpImcP->fdwImeMsg & MSG_ALREADY_START)
#endif
) {
if (lpUIPrivate->hCompWnd) {
if ((UINT)GetWindowLong(lpUIPrivate->hCompWnd, UI_MOVE_XY) !=
lpImeL->nRevMaxKey) {
ChangeCompositionSize(hUIWnd);
}
if (lpUIPrivate->nShowCompCmd != SW_HIDE) {
// some time the WM_ERASEBKGND is eaten by the app
RedrawWindow(lpUIPrivate->hCompWnd, NULL, NULL,
RDW_FRAME|RDW_INVALIDATE|RDW_ERASE);
}
SendMessage(lpUIPrivate->hCompWnd, WM_IME_NOTIFY,
IMN_SETCOMPOSITIONWINDOW, 0);
if (lpUIPrivate->nShowCompCmd == SW_HIDE) {
ShowComp(hUIWnd, nShowCmd);
}
} else {
CreateCompWindow(hUIWnd);
}
} else if (lpUIPrivate->nShowCompCmd == SW_HIDE) {
} else if (lpUIPrivate->fdwSetContext & ISC_OPEN_STATUS_WINDOW) {
// delay the hide with status window
lpUIPrivate->fdwSetContext |= ISC_HIDE_COMP_WINDOW;
} else {
ShowComp(hUIWnd, SW_HIDE);
}
if (lpIMC->fdwInit & INIT_SENTENCE) {
// app set the sentence mode so we should not change it
// with the configure option set by end user
} else if (lpImeL->fdwModeConfig & MODE_CONFIG_PREDICT) {
if (!(lpIMC->fdwSentence & IME_SMODE_PHRASEPREDICT)) {
DWORD fdwSentence;
fdwSentence = lpIMC->fdwSentence;
*(LPWORD)&fdwSentence |= IME_SMODE_PHRASEPREDICT;
ImmSetConversionStatus(hIMC, lpIMC->fdwConversion, fdwSentence);
}
} else {
if (lpIMC->fdwSentence & IME_SMODE_PHRASEPREDICT) {
DWORD fdwSentence;
fdwSentence = lpIMC->fdwSentence;
*(LPWORD)&fdwSentence &= ~(IME_SMODE_PHRASEPREDICT);
ImmSetConversionStatus(hIMC, lpIMC->fdwConversion, fdwSentence);
}
}
// we switch to this hIMC
lpUIPrivate->hCacheIMC = hIMC;
GlobalUnlock(hUIPrivate);
ShowUIUnlockIMCC:
ImmUnlockIMCC(lpIMC->hPrivate);
ImmUnlockIMC(hIMC);
return;
}
/**********************************************************************/
/* NotifyUI() */
/**********************************************************************/
void PASCAL NotifyUI(
HWND hUIWnd,
WPARAM wParam,
LPARAM lParam)
{
HWND hStatusWnd;
switch (wParam) {
case IMN_SETSENTENCEMODE:
break;
case IMN_SETCOMPOSITIONFONT:
// we are not going to change font, but an IME can do this if it want
break;
case IMN_SETCOMPOSITIONWINDOW:
// if (!(lpImeL->fdwModeConfig & MODE_CONFIG_OFF_CARET_UI))
{
HWND hCompWnd;
hCompWnd = GetCompWnd(hUIWnd);
if (!hCompWnd) {
return;
}
PostMessage(hCompWnd, WM_IME_NOTIFY, wParam, lParam);
}
break;
case IMN_PRIVATE:
switch (lParam) {
case IMN_PRIVATE_COMPOSITION_SIZE:
ChangeCompositionSize(
hUIWnd);
break;
default:
break;
}
break;
default:
break;
}
return;
}
/**********************************************************************/
/* UIChange() */
/**********************************************************************/
LRESULT PASCAL UIChange(
HWND hUIWnd)
{
HGLOBAL hUIPrivate;
LPUIPRIV lpUIPrivate;
hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
if (!hUIPrivate) {
return (0L);
}
lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
if (!lpUIPrivate) {
return (0L);
}
if (lpUIPrivate->fdwSetContext & ISC_SHOW_UI_ALL) {
ShowUI(hUIWnd, SW_SHOWNOACTIVATE);
} else {
ShowUI(hUIWnd, SW_HIDE);
}
GlobalUnlock(hUIPrivate);
return (0L);
}
/**********************************************************************/
/* SetContext() */
/**********************************************************************/
void PASCAL SetContext( // the context activated/deactivated
HWND hUIWnd,
BOOL fOn,
LPARAM lShowUI)
{
HGLOBAL hUIPrivate;
register LPUIPRIV lpUIPrivate;
hUIPrivate = (HGLOBAL)GetWindowLongPtr(hUIWnd, IMMGWLP_PRIVATE);
if (!hUIPrivate) {
return;
}
lpUIPrivate = (LPUIPRIV)GlobalLock(hUIPrivate);
if (!lpUIPrivate) {
return;
}
if (fOn) {
HIMC hIMC;
LPINPUTCONTEXT lpIMC;
register DWORD fdwSetContext;
lpUIPrivate->fdwSetContext = lpUIPrivate->fdwSetContext &
~(ISC_SHOWUIALL|ISC_HIDE_SOFTKBD);
lpUIPrivate->fdwSetContext |= (lShowUI & ISC_SHOWUIALL) |
ISC_SHOW_SOFTKBD;
fdwSetContext = lpUIPrivate->fdwSetContext &
(ISC_SHOWUICOMPOSITIONWINDOW|ISC_HIDE_COMP_WINDOW);
if (fdwSetContext == ISC_HIDE_COMP_WINDOW) {
ShowComp(
hUIWnd, SW_HIDE);
} else if (fdwSetContext & ISC_HIDE_COMP_WINDOW) {
lpUIPrivate->fdwSetContext &= ~(ISC_HIDE_COMP_WINDOW);
} else {
}
fdwSetContext = lpUIPrivate->fdwSetContext &
(ISC_SHOWUICANDIDATEWINDOW|ISC_HIDE_CAND_WINDOW);
hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
if (!hIMC) {
goto SetCxtUnlockUIPriv;
}
lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
if (!lpIMC) {
goto SetCxtUnlockUIPriv;
}
if (lpIMC->cfCandForm[0].dwIndex != 0) {
lpIMC->cfCandForm[0].dwStyle = CFS_DEFAULT;
}
ImmUnlockIMC(hIMC);
} else {
lpUIPrivate->fdwSetContext &= ~ISC_SETCONTEXT_UI;
}
SetCxtUnlockUIPriv:
GlobalUnlock(hUIPrivate);
UIChange(
hUIWnd);
return;
}
/**********************************************************************/
/* GetCompWindow() */
/**********************************************************************/
LRESULT PASCAL GetCompWindow(
HWND hUIWnd,
LPCOMPOSITIONFORM lpCompForm)
{
HWND hCompWnd;
RECT rcCompWnd;
HIMC hIMC;
LPINPUTCONTEXT lpIMC;
hCompWnd = GetCompWnd(hUIWnd);
if (!hCompWnd) {
return (1L);
}
if (!GetWindowRect(hCompWnd, &rcCompWnd)) {
return (1L);
}
lpCompForm->dwStyle = CFS_RECT;
lpCompForm->ptCurrentPos = *(LPPOINT)&rcCompWnd;
lpCompForm->rcArea = rcCompWnd;
hIMC = (HIMC)GetWindowLongPtr(hUIWnd, IMMGWLP_IMC);
if (!hIMC) {
return (1L);
}
lpIMC = (LPINPUTCONTEXT)ImmLockIMC(hIMC);
if (!lpIMC) {
return (1L);
}
ScreenToClient(lpIMC->hWnd, &lpCompForm->ptCurrentPos);
lpCompForm->rcArea.right += lpCompForm->ptCurrentPos.x -
lpCompForm->rcArea.left;
lpCompForm->rcArea.bottom += lpCompForm->ptCurrentPos.y -
lpCompForm->rcArea.top;
*(LPPOINT)&lpCompForm->rcArea = lpCompForm->ptCurrentPos;
ImmUnlockIMC(hIMC);
return (0L);
}
/**********************************************************************/
/* UIWndProc() / UniUIWndProc() */
/**********************************************************************/
LRESULT CALLBACK UIWndProc(
HWND hUIWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg) {
case WM_CREATE:
CreateUIWindow(hUIWnd);
break;
case WM_DESTROY:
DestroyUIWindow(hUIWnd);
break;
case WM_IME_STARTCOMPOSITION:
//
// Create a window as the composition window.
//
CreateCompWindow(hUIWnd);
break;
case WM_IME_COMPOSITION:
{
HWND hCompWnd;
if (lParam & GCS_RESULTSTR)
{
MoveDefaultCompPosition(hUIWnd);
}
hCompWnd = GetCompWnd(hUIWnd);
if (hCompWnd)
{
RECT rcRect;
rcRect = lpImeL->rcCompText;
// off by 1
rcRect.right += 1;
rcRect.bottom += 1;
RedrawWindow(hCompWnd, &rcRect, NULL, RDW_INVALIDATE);
}
break;
}
case WM_IME_ENDCOMPOSITION:
//
// We can destroy the composition window here. But we don't have a
// status window. So we keep the composition window displayed
// to show our presence.
//
return (0L);
case WM_IME_NOTIFY:
NotifyUI(hUIWnd, wParam, lParam);
break;
case WM_IME_SETCONTEXT:
SetContext(hUIWnd, (BOOL)wParam, lParam);
break;
case WM_IME_CONTROL:
switch (wParam) {
case IMC_GETCOMPOSITIONWINDOW:
return GetCompWindow(hUIWnd, (LPCOMPOSITIONFORM)lParam);
}
case WM_IME_COMPOSITIONFULL:
return (0L);
case WM_IME_SELECT:
//
// try to use SetContext
// SelectIME(hUIWnd, (BOOL)wParam);
//
SetContext( hUIWnd, (BOOL)wParam, 0);
//
// We want a comp window immediately after IME starts.
//
CreateCompWindow(hUIWnd);
return (0L);
case WM_MOUSEACTIVATE:
return (MA_NOACTIVATE);
case WM_USER_UICHANGE:
return UIChange(
hUIWnd);
default:
return DefWindowProc(hUIWnd, uMsg, wParam, lParam);
}
return (0L);
}