diff options
Diffstat (limited to 'win/tkWinWm.c')
| -rw-r--r-- | win/tkWinWm.c | 236 |
1 files changed, 216 insertions, 20 deletions
diff --git a/win/tkWinWm.c b/win/tkWinWm.c index 952642b..6325eee 100644 --- a/win/tkWinWm.c +++ b/win/tkWinWm.c @@ -12,10 +12,11 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkWinWm.c,v 1.47 2002/07/15 16:56:32 dgp Exp $ + * RCS: @(#) $Id: tkWinWm.c,v 1.48 2002/07/16 18:06:41 vincentdarley Exp $ */ #include "tkWinInt.h" +#include <shellapi.h> /* * Event structure for synthetic activation events. These events are @@ -354,7 +355,7 @@ typedef struct ThreadSpecificData { * been initialized. */ int firstWindow; /* Flag, cleared when the first window * is mapped in a non-iconic state. */ - WinIconPtr iconPtr; /* IconPtr being used as default for all + WinIconPtr iconPtr; /* IconPtr being used as default for all * toplevels, or NULL. */ } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; @@ -366,6 +367,15 @@ static Tcl_ThreadDataKey dataKey; static int initialized; /* Flag indicating whether module has * been initialized. */ + +/* + * A pointer to a shell proc which allows us to extract icons from + * any file. We just initialize this when we start up (if we can) + * and then it never changes + */ +DWORD* (WINAPI *shgetfileinfoProc) (LPCTSTR pszPath, DWORD dwFileAttributes, + SHFILEINFO* psfi, UINT cbFileInfo, UINT uFlags) = NULL; + TCL_DECLARE_MUTEX(winWmMutex) /* @@ -409,9 +419,11 @@ static LRESULT CALLBACK WmProc _ANSI_ARGS_((HWND hwnd, UINT message, static void WmWaitVisibilityOrMapProc _ANSI_ARGS_(( ClientData clientData, XEvent *eventPtr)); static BlockOfIconImagesPtr ReadIconFromICOFile _ANSI_ARGS_(( - Tcl_Interp *interp, char* fileName)); + Tcl_Interp *interp, Tcl_Obj* fileName)); static WinIconPtr ReadIconFromFile _ANSI_ARGS_(( - Tcl_Interp *interp, char *fileName)); + Tcl_Interp *interp, Tcl_Obj *fileName)); +static WinIconPtr GetIconFromPixmap _ANSI_ARGS_((Display *dsPtr, + Pixmap pixmap)); static int ReadICOHeader _ANSI_ARGS_((Tcl_Channel channel)); static BOOL AdjustIconImagePointers _ANSI_ARGS_((LPICONIMAGE lpImage)); static HICON MakeIconFromResource _ANSI_ARGS_((LPICONIMAGE lpIcon)); @@ -696,6 +708,16 @@ static int InitWindowClass(WinIconPtr titlebaricon) { WNDCLASS class; initialized = 1; + if (shgetfileinfoProc == NULL) { + HINSTANCE hInstance = LoadLibraryA("shell32"); + if (hInstance != NULL) { + shgetfileinfoProc = + (DWORD* (WINAPI *) (LPCTSTR pszPath, DWORD dwFileAttributes, + SHFILEINFO* psfi, UINT cbFileInfo, UINT uFlags)) GetProcAddress(hInstance, + "SHGetFileInfo"); + FreeLibrary(hInstance); + } + } /* * The only difference between WNDCLASSW and WNDCLASSA are * in pointers, so we can use the generic structure WNDCLASS. @@ -942,9 +964,11 @@ WinSetIcon(interp, titlebaricon, tkw) * ReadIconFromFile -- * * Read the contents of a file (usually .ico, .icr) and extract an - * icon resource, if possible, otherwise NULL is returned, and an - * error message will already be in the interpreter. - * + * icon resource, if possible, otherwise check if the shell has an + * icon assigned to the given file and use that. If both of those + * fail, then NULL is returned, and an error message will already be + * in the interpreter. + * * Results: * A WinIconPtr structure containing the icons in the file, with * its ref count already incremented. The calling procedure should @@ -974,7 +998,7 @@ WinSetIcon(interp, titlebaricon, tkw) static WinIconPtr ReadIconFromFile(interp, fileName) Tcl_Interp *interp; - char *fileName; + Tcl_Obj *fileName; { WinIconPtr titlebaricon = NULL; @@ -983,7 +1007,47 @@ ReadIconFromFile(interp, fileName) titlebaricon->refCount++; return titlebaricon; } else { + /* First check if it is a .ico file */ BlockOfIconImagesPtr lpIR = ReadIconFromICOFile(interp, fileName); + + /* Then see if we can ask the shell for the icon for this file */ + if (lpIR == NULL && shgetfileinfoProc != NULL) { + SHFILEINFO sfi; + Tcl_DString ds, ds2; + DWORD *res; + CONST char *file; + + file = Tcl_TranslateFileName(interp, Tcl_GetString(fileName), &ds); + if (file == NULL) { return NULL; } + Tcl_UtfToExternalDString(NULL, file, -1, &ds2); + Tcl_DStringFree(&ds); + + res = (*shgetfileinfoProc)(Tcl_DStringValue(&ds2), 0, &sfi, + sizeof(SHFILEINFO), SHGFI_SMALLICON|SHGFI_ICON); + + Tcl_DStringFree(&ds2); + + if (res != 0) { + Tcl_ResetResult(interp); + + lpIR = (BlockOfIconImagesPtr) ckalloc(sizeof(BlockOfIconImages)); + if (lpIR == NULL) { + DestroyIcon(sfi.hIcon); + return NULL; + } + + lpIR->nNumImages = 1; + lpIR->IconImages[0].Width = 16; + lpIR->IconImages[0].Height = 16; + lpIR->IconImages[0].Colors = 4; + lpIR->IconImages[0].hIcon = sfi.hIcon; + /* These fields are ignored */ + lpIR->IconImages[0].lpBits = 0; + lpIR->IconImages[0].dwNumBytes = 0; + lpIR->IconImages[0].lpXOR = 0; + lpIR->IconImages[0].lpAND = 0; + } + } if (lpIR != NULL) { titlebaricon = (WinIconPtr) ckalloc(sizeof(WinIconInstance)); titlebaricon->iconBlock = lpIR; @@ -996,6 +1060,97 @@ ReadIconFromFile(interp, fileName) /* *---------------------------------------------------------------------- * + * GetIconFromPixmap -- + * + * Turn a Tk Pixmap (i.e. a bitmap) into an icon resource, if + * possible, otherwise NULL is returned. + * + * Results: + * A WinIconPtr structure containing a conversion of the given + * bitmap into an icon, with its ref count already incremented. The + * calling procedure should either place this structure inside a + * WmInfo structure, or it should pass it on to DecrIconRefCount() + * to ensure no memory leaks occur. + * + * If the given pixmap did not contain a valid icon structure, + * return NULL. + * + * Side effects: + * Memory is allocated for the returned structure and the icons + * it contains. If the structure is not wanted, it should be + * passed to DecrIconRefCount, and in any case a valid ref count + * should be ensured to avoid memory leaks. + * + * Currently icon resources are not shared, so the ref count of + * one of these structures will always be 0 or 1. However all we + * need do is implement some sort of lookup function between + * pixmaps and WinIconPtr structures and no other code will need + * to be changed. + * + *---------------------------------------------------------------------- + */ +static WinIconPtr +GetIconFromPixmap(dsPtr, pixmap) + Display *dsPtr; + Pixmap pixmap; +{ + WinIconPtr titlebaricon = NULL; + TkWinDrawable* twdPtr = (TkWinDrawable*) pixmap; + + if (twdPtr == NULL) { + return NULL; + } + + if (0 /* If we already have an icon for this pixmap */) { + titlebaricon = NULL; /* Get the real value from a lookup */ + titlebaricon->refCount++; + return titlebaricon; + } else { + BlockOfIconImagesPtr lpIR; + ICONINFO icon; + HICON hIcon; + int width, height; + + Tk_SizeOfBitmap(dsPtr, pixmap, &width, &height); + + icon.fIcon = TRUE; + icon.xHotspot = 0; + icon.yHotspot = 0; + icon.hbmMask = twdPtr->bitmap.handle; + icon.hbmColor = twdPtr->bitmap.handle; + + hIcon = CreateIconIndirect(&icon); + if (hIcon == NULL) { + return NULL; + } + + lpIR = (BlockOfIconImagesPtr) ckalloc(sizeof(BlockOfIconImages)); + if (lpIR == NULL) { + DestroyIcon(hIcon); + return NULL; + } + + lpIR->nNumImages = 1; + lpIR->IconImages[0].Width = width; + lpIR->IconImages[0].Height = height; + lpIR->IconImages[0].Colors = 1 << twdPtr->bitmap.depth; + lpIR->IconImages[0].hIcon = hIcon; + /* These fields are ignored */ + lpIR->IconImages[0].lpBits = 0; + lpIR->IconImages[0].dwNumBytes = 0; + lpIR->IconImages[0].lpXOR = 0; + lpIR->IconImages[0].lpAND = 0; + + titlebaricon = (WinIconPtr) ckalloc(sizeof(WinIconInstance)); + titlebaricon->iconBlock = lpIR; + titlebaricon->refCount = 1; + return titlebaricon; + } +} + +/* + *---------------------------------------------------------------------- + * * DecrIconRefCount -- * * Reduces the reference count. @@ -1010,7 +1165,8 @@ ReadIconFromFile(interp, fileName) * *---------------------------------------------------------------------- */ -static void DecrIconRefCount(WinIconPtr titlebaricon) { +static void +DecrIconRefCount(WinIconPtr titlebaricon) { titlebaricon->refCount--; if (titlebaricon->refCount <= 0) { @@ -1040,7 +1196,8 @@ static void DecrIconRefCount(WinIconPtr titlebaricon) { * *---------------------------------------------------------------------- */ -static void FreeIconBlock(BlockOfIconImagesPtr lpIR) { +static void +FreeIconBlock(BlockOfIconImagesPtr lpIR) { int i; /* Free all the bits */ @@ -1070,8 +1227,15 @@ static void FreeIconBlock(BlockOfIconImagesPtr lpIR) { * *---------------------------------------------------------------------- */ -static HICON GetIcon(WinIconPtr titlebaricon, int icon_size) { - BlockOfIconImagesPtr lpIR = titlebaricon->iconBlock; +static HICON +GetIcon(WinIconPtr titlebaricon, int icon_size) { + BlockOfIconImagesPtr lpIR; + + if (titlebaricon == NULL) { + return NULL; + } + + lpIR = titlebaricon->iconBlock; if (lpIR == NULL) { return NULL; } else { @@ -1086,6 +1250,14 @@ static HICON GetIcon(WinIconPtr titlebaricon, int icon_size) { return lpIR->IconImages[i].hIcon; } } + + /* + * If we get here, then just return the first one, + * it will have to do! + */ + if (lpIR->nNumImages >= 1) { + return lpIR->IconImages[0].hIcon; + } } return NULL; } @@ -1107,7 +1279,8 @@ static HICON GetIcon(WinIconPtr titlebaricon, int icon_size) { * *---------------------------------------------------------------------- */ -BlockOfIconImagesPtr ReadIconFromICOFile(Tcl_Interp* interp, char* fileName){ +static BlockOfIconImagesPtr +ReadIconFromICOFile(Tcl_Interp* interp, Tcl_Obj* fileName){ BlockOfIconImagesPtr lpIR , lpNew ; Tcl_Channel channel; int i; @@ -1115,8 +1288,8 @@ BlockOfIconImagesPtr ReadIconFromICOFile(Tcl_Interp* interp, char* fileName){ LPICONDIRENTRY lpIDE; /* Open the file */ - if ((channel = Tcl_OpenFileChannel(interp, fileName, "r", 0)) == NULL) { - Tcl_AppendResult(interp,"Error opening file \"", fileName, + if ((channel = Tcl_FSOpenFileChannel(interp, fileName, "r", 0)) == NULL) { + Tcl_AppendResult(interp,"Error opening file \"", Tcl_GetString(fileName), "\" for reading",(char*)NULL); return NULL; } @@ -1197,7 +1370,8 @@ BlockOfIconImagesPtr ReadIconFromICOFile(Tcl_Interp* interp, char* fileName){ } /* Set the internal pointers appropriately */ if (!AdjustIconImagePointers( &(lpIR->IconImages[i]))) { - Tcl_AppendResult(interp,"Error converting to internal format",(char*)NULL); + Tcl_AppendResult(interp,"Error converting to internal format", + (char*)NULL); Tcl_Close(NULL, channel); ckfree( (char*)lpIDE ); ckfree( (char*)lpIR ); @@ -1209,7 +1383,8 @@ BlockOfIconImagesPtr ReadIconFromICOFile(Tcl_Interp* interp, char* fileName){ ckfree((char*)lpIDE); Tcl_Close(NULL, channel); if (lpIR == NULL){ - Tcl_AppendResult(interp,"Reading of ",fileName," failed!",(char*)NULL); + Tcl_AppendResult(interp,"Reading of ", Tcl_GetString(fileName), + " failed!",(char*)NULL); return NULL; } return lpIR; @@ -2421,7 +2596,8 @@ Tk_WmCmd(clientData, interp, argc, argv) } if (wmPtr->iconFor != NULL) { Tcl_AppendResult(interp, "can't deiconify ", argv[2], - ": it is an icon for ", winPtr->pathName, (char *) NULL); + ": it is an icon for ", Tk_PathName(wmPtr->iconFor), + (char *) NULL); return TCL_ERROR; } if (winPtr->flags & TK_EMBEDDED) { @@ -2680,6 +2856,10 @@ Tk_WmCmd(clientData, interp, argc, argv) Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap); } wmPtr->hints.flags &= ~IconPixmapHint; + if (WinSetIcon(interp, NULL, + (isDefault ? NULL : (Tk_Window) winPtr)) != TCL_OK) { + return TCL_ERROR; + } } else { /* * In the future this block of code will use Tk's 'image' @@ -2700,7 +2880,12 @@ Tk_WmCmd(clientData, interp, argc, argv) * Either return NULL, or return a valid titlebaricon with its * ref count already incremented. */ - WinIconPtr titlebaricon = ReadIconFromFile(interp, argv[argc-1]); + WinIconPtr titlebaricon; + + Tcl_Obj *tempPath = Tcl_NewStringObj(argv[argc-1], -1); + Tcl_IncrRefCount(tempPath); + titlebaricon = ReadIconFromFile(interp, tempPath); + Tcl_DecrRefCount(tempPath); if (titlebaricon != NULL) { /* * Try to set the icon for the window. If it is a '-default' @@ -2728,6 +2913,16 @@ Tk_WmCmd(clientData, interp, argc, argv) } wmPtr->hints.icon_pixmap = pixmap; wmPtr->hints.flags |= IconPixmapHint; + titlebaricon = GetIconFromPixmap(Tk_Display(winPtr), pixmap); + if (titlebaricon != NULL) { + if (WinSetIcon(interp, titlebaricon, + (isDefault ? NULL : (Tk_Window) winPtr)) != TCL_OK) { + /* We didn't use the titlebaricon after all */ + DecrIconRefCount(titlebaricon); + titlebaricon = NULL; + } + + } } } } else if ((c == 'i') && (strncmp(argv[1], "iconify", length) == 0) @@ -2749,7 +2944,8 @@ Tk_WmCmd(clientData, interp, argc, argv) } if (wmPtr->iconFor != NULL) { Tcl_AppendResult(interp, "can't iconify ", argv[2], - ": it is an icon for ", winPtr->pathName, (char *) NULL); + ": it is an icon for ", Tk_PathName(wmPtr->iconFor), + (char *) NULL); return TCL_ERROR; } if (winPtr->flags & TK_EMBEDDED) { |