tkWinButton.c
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:37k
- /*
- * tkWinButton.c --
- *
- * This file implements the Windows specific portion of the button
- * widgets.
- *
- * Copyright (c) 1996-1998 by Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tkWinButton.c,v 1.20.2.4 2006/12/19 19:50:55 hobbs Exp $
- */
- #define OEMRESOURCE
- #include "tkWinInt.h"
- #include "tkButton.h"
- /*
- * These macros define the base style flags for the different button types.
- */
- #define LABEL_STYLE (BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS)
- #define PUSH_STYLE (BS_OWNERDRAW | BS_PUSHBUTTON | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS)
- #define CHECK_STYLE (BS_OWNERDRAW | BS_CHECKBOX | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS)
- #define RADIO_STYLE (BS_OWNERDRAW | BS_RADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS)
- /*
- * Declaration of Windows specific button structure.
- */
- typedef struct WinButton {
- TkButton info; /* Generic button info. */
- WNDPROC oldProc; /* Old window procedure. */
- HWND hwnd; /* Current window handle. */
- Pixmap pixmap; /* Bitmap for rendering the button. */
- DWORD style; /* Window style flags. */
- } WinButton;
- /*
- * The following macro reverses the order of RGB bytes to convert
- * between RGBQUAD and COLORREF values.
- */
- #define FlipColor(rgb) (RGB(GetBValue(rgb),GetGValue(rgb),GetRValue(rgb)))
- /*
- * The following enumeration defines the meaning of the palette entries
- * in the "buttons" image used to draw checkbox and radiobutton indicators.
- */
- enum {
- PAL_CHECK = 0,
- PAL_TOP_OUTER = 1,
- PAL_BOTTOM_OUTER = 2,
- PAL_BOTTOM_INNER = 3,
- PAL_INTERIOR = 4,
- PAL_TOP_INNER = 5,
- PAL_BACKGROUND = 6
- };
- /*
- * Cached information about the boxes bitmap, and the default border
- * width for a button in string form for use in Tk_OptionSpec for
- * the various button widget classes.
- */
- typedef struct ThreadSpecificData {
- BITMAPINFOHEADER *boxesPtr; /* Information about the bitmap. */
- DWORD *boxesPalette; /* Pointer to color palette. */
- LPSTR boxesBits; /* Pointer to bitmap data. */
- DWORD boxHeight; /* Height of each sub-image. */
- DWORD boxWidth ; /* Width of each sub-image. */
- char defWidth[TCL_INTEGER_SPACE];
- } ThreadSpecificData;
- static Tcl_ThreadDataKey dataKey;
- /*
- * Declarations for functions defined in this file.
- */
- static LRESULT CALLBACK ButtonProc _ANSI_ARGS_((HWND hwnd, UINT message,
- WPARAM wParam, LPARAM lParam));
- static Window CreateProc _ANSI_ARGS_((Tk_Window tkwin,
- Window parent, ClientData instanceData));
- static void InitBoxes _ANSI_ARGS_((void));
- /*
- * The class procedure table for the button widgets.
- */
- Tk_ClassProcs tkpButtonProcs = {
- sizeof(Tk_ClassProcs), /* size */
- TkButtonWorldChanged, /* worldChangedProc */
- CreateProc, /* createProc */
- };
- /*
- *----------------------------------------------------------------------
- *
- * InitBoxes --
- *
- * This function load the Tk 3d button bitmap. "buttons" is a 16
- * color bitmap that is laid out such that the top row contains
- * the 4 checkbox images, and the bottom row contains the radio
- * button images. Note that the bitmap is stored in bottom-up
- * format. Also, the first seven palette entries are used to
- * identify the different parts of the bitmaps so we can do the
- * appropriate color mappings based on the current button colors.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Loads the "buttons" resource.
- *
- *----------------------------------------------------------------------
- */
- static void
- InitBoxes()
- {
- /*
- * For DLLs like Tk, the HINSTANCE is the same as the HMODULE.
- */
- HMODULE module = (HINSTANCE) Tk_GetHINSTANCE();
- HRSRC hrsrc;
- HGLOBAL hblk;
- LPBITMAPINFOHEADER newBitmap;
- DWORD size;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- hrsrc = FindResource(module, "buttons", RT_BITMAP);
- if (hrsrc) {
- hblk = LoadResource(module, hrsrc);
- tsdPtr->boxesPtr = (LPBITMAPINFOHEADER)LockResource(hblk);
- }
- /*
- * Copy the DIBitmap into writable memory.
- */
- if (tsdPtr->boxesPtr != NULL && !(tsdPtr->boxesPtr->biWidth % 4)
- && !(tsdPtr->boxesPtr->biHeight % 2)) {
- size = tsdPtr->boxesPtr->biSize + (1 << tsdPtr->boxesPtr->biBitCount)
- * sizeof(RGBQUAD) + tsdPtr->boxesPtr->biSizeImage;
- newBitmap = (LPBITMAPINFOHEADER) ckalloc(size);
- memcpy(newBitmap, tsdPtr->boxesPtr, size);
- tsdPtr->boxesPtr = newBitmap;
- tsdPtr->boxWidth = tsdPtr->boxesPtr->biWidth / 4;
- tsdPtr->boxHeight = tsdPtr->boxesPtr->biHeight / 2;
- tsdPtr->boxesPalette = (DWORD*) (((LPSTR) tsdPtr->boxesPtr)
- + tsdPtr->boxesPtr->biSize);
- tsdPtr->boxesBits = ((LPSTR) tsdPtr->boxesPalette)
- + ((1 << tsdPtr->boxesPtr->biBitCount) * sizeof(RGBQUAD));
- } else {
- tsdPtr->boxesPtr = NULL;
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpButtonSetDefaults --
- *
- * This procedure is invoked before option tables are created for
- * buttons. It modifies some of the default values to match the
- * current values defined for this platform.
- *
- * Results:
- * Some of the default values in *specPtr are modified.
- *
- * Side effects:
- * Updates some of.
- *
- *----------------------------------------------------------------------
- */
- void
- TkpButtonSetDefaults(specPtr)
- Tk_OptionSpec *specPtr; /* Points to an array of option specs,
- * terminated by one with type
- * TK_OPTION_END. */
- {
- int width;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- if (tsdPtr->defWidth[0] == 0) {
- width = GetSystemMetrics(SM_CXEDGE);
- if (width == 0) {
- width = 1;
- }
- sprintf(tsdPtr->defWidth, "%d", width);
- }
- for ( ; specPtr->type != TK_OPTION_END; specPtr++) {
- if (specPtr->internalOffset == Tk_Offset(TkButton, borderWidth)) {
- specPtr->defValue = tsdPtr->defWidth;
- }
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpCreateButton --
- *
- * Allocate a new TkButton structure.
- *
- * Results:
- * Returns a newly allocated TkButton structure.
- *
- * Side effects:
- * Registers an event handler for the widget.
- *
- *----------------------------------------------------------------------
- */
- TkButton *
- TkpCreateButton(tkwin)
- Tk_Window tkwin;
- {
- WinButton *butPtr;
- butPtr = (WinButton *)ckalloc(sizeof(WinButton));
- butPtr->hwnd = NULL;
- return (TkButton *) butPtr;
- }
- /*
- *----------------------------------------------------------------------
- *
- * CreateProc --
- *
- * This function creates a new Button control, subclasses
- * the instance, and generates a new Window object.
- *
- * Results:
- * Returns the newly allocated Window object, or None on failure.
- *
- * Side effects:
- * Causes a new Button control to come into existence.
- *
- *----------------------------------------------------------------------
- */
- static Window
- CreateProc(tkwin, parentWin, instanceData)
- Tk_Window tkwin; /* Token for window. */
- Window parentWin; /* Parent of new window. */
- ClientData instanceData; /* Button instance data. */
- {
- Window window;
- HWND parent;
- char *class;
- WinButton *butPtr = (WinButton *)instanceData;
- parent = Tk_GetHWND(parentWin);
- if (butPtr->info.type == TYPE_LABEL) {
- class = "STATIC";
- butPtr->style = SS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
- } else {
- class = "BUTTON";
- butPtr->style = BS_OWNERDRAW | WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
- }
- butPtr->hwnd = CreateWindow(class, NULL, butPtr->style,
- Tk_X(tkwin), Tk_Y(tkwin), Tk_Width(tkwin), Tk_Height(tkwin),
- parent, NULL, Tk_GetHINSTANCE(), NULL);
- SetWindowPos(butPtr->hwnd, HWND_TOP, 0, 0, 0, 0,
- SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
- #ifdef _WIN64
- butPtr->oldProc = (WNDPROC)SetWindowLongPtr(butPtr->hwnd, GWLP_WNDPROC,
- (LONG_PTR) ButtonProc);
- #else
- butPtr->oldProc = (WNDPROC)SetWindowLong(butPtr->hwnd, GWL_WNDPROC,
- (DWORD) ButtonProc);
- #endif
- window = Tk_AttachHWND(tkwin, butPtr->hwnd);
- return window;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpDestroyButton --
- *
- * Free data structures associated with the button control.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Restores the default control state.
- *
- *----------------------------------------------------------------------
- */
- void
- TkpDestroyButton(butPtr)
- TkButton *butPtr;
- {
- WinButton *winButPtr = (WinButton *)butPtr;
- HWND hwnd = winButPtr->hwnd;
- if (hwnd) {
- #ifdef _WIN64
- SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR) winButPtr->oldProc);
- #else
- SetWindowLong(hwnd, GWL_WNDPROC, (DWORD) winButPtr->oldProc);
- #endif
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpDisplayButton --
- *
- * This procedure is invoked to display a button widget. It is
- * normally invoked as an idle handler.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Information appears on the screen. The REDRAW_PENDING flag
- * is cleared.
- *
- *----------------------------------------------------------------------
- */
- void
- TkpDisplayButton(clientData)
- ClientData clientData; /* Information about widget. */
- {
- TkWinDCState state;
- HDC dc;
- register TkButton *butPtr = (TkButton *) clientData;
- GC gc;
- Tk_3DBorder border;
- Pixmap pixmap;
- int x = 0; /* Initialization only needed to stop
- * compiler warning. */
- int y, relief;
- register Tk_Window tkwin = butPtr->tkwin;
- int width = 0, height = 0, haveImage = 0, haveText = 0, drawRing = 0;
- RECT rect;
- int defaultWidth; /* Width of default ring. */
- int offset; /* 0 means this is a label widget. 1 means
- * it is a flavor of button, so we offset
- * the text to make the button appear to
- * move up and down as the relief changes. */
- int textXOffset = 0, textYOffset = 0; /* text offsets for use with
- * compound buttons and focus ring */
- int imageWidth, imageHeight;
- int imageXOffset = 0, imageYOffset = 0; /* image information that will
- * be used to restrict disabled
- * pixmap as well */
- DWORD *boxesPalette;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- boxesPalette= tsdPtr->boxesPalette;
- butPtr->flags &= ~REDRAW_PENDING;
- if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
- return;
- }
- border = butPtr->normalBorder;
- if ((butPtr->state == STATE_DISABLED) && (butPtr->disabledFg != NULL)) {
- gc = butPtr->disabledGC;
- } else if ((butPtr->state == STATE_ACTIVE)
- && !Tk_StrictMotif(butPtr->tkwin)) {
- gc = butPtr->activeTextGC;
- border = butPtr->activeBorder;
- } else {
- gc = butPtr->normalTextGC;
- }
- if ((butPtr->flags & SELECTED) && (butPtr->state != STATE_ACTIVE)
- && (butPtr->selectBorder != NULL) && !butPtr->indicatorOn) {
- border = butPtr->selectBorder;
- }
- /*
- * Override the relief specified for the button if this is a
- * checkbutton or radiobutton and there's no indicator. The new
- * relief is as follows:
- * If the button is select --> "sunken"
- * If relief==overrelief --> relief
- * Otherwise --> overrelief
- *
- * The effect we are trying to achieve is as follows:
- *
- * value mouse-over? --> relief
- * ------- ------------ --------
- * off no flat
- * off yes raised
- * on no sunken
- * on yes sunken
- *
- * This is accomplished by configuring the checkbutton or radiobutton
- * like this:
- *
- * -indicatoron 0 -overrelief raised -offrelief flat
- *
- * Bindings (see library/button.tcl) will copy the -overrelief into
- * -relief on mouseover. Hence, we can tell if we are in mouse-over by
- * comparing relief against overRelief. This is an aweful kludge, but
- * it gives use the desired behavior while keeping the code backwards
- * compatible.
- */
- relief = butPtr->relief;
- if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) {
- if (butPtr->flags & SELECTED) {
- relief = TK_RELIEF_SUNKEN;
- } else if (butPtr->overRelief != relief) {
- relief = butPtr->offRelief;
- }
- }
- /*
- * Compute width of default ring and offset for pushed buttons.
- */
- if (butPtr->type == TYPE_BUTTON) {
- defaultWidth = ((butPtr->defaultState == DEFAULT_ACTIVE)
- ? butPtr->highlightWidth : 0);
- offset = 1;
- } else {
- defaultWidth = 0;
- if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) {
- offset = 1;
- } else {
- offset = 0;
- }
- }
- /*
- * In order to avoid screen flashes, this procedure redraws
- * the button in a pixmap, then copies the pixmap to the
- * screen in a single operation. This means that there's no
- * point in time where the on-sreen image has been cleared.
- */
- pixmap = Tk_GetPixmap(butPtr->display, Tk_WindowId(tkwin),
- Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
- Tk_Fill3DRectangle(tkwin, pixmap, border, 0, 0, Tk_Width(tkwin),
- Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
- /*
- * Display image or bitmap or text for button.
- */
- if (butPtr->image != None) {
- Tk_SizeOfImage(butPtr->image, &width, &height);
- haveImage = 1;
- } else if (butPtr->bitmap != None) {
- Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
- haveImage = 1;
- }
- imageWidth = width;
- imageHeight = height;
- haveText = (butPtr->textWidth != 0 && butPtr->textHeight != 0);
- if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
- int fullWidth = 0, fullHeight = 0;
- switch ((enum compound) butPtr->compound) {
- case COMPOUND_TOP:
- case COMPOUND_BOTTOM: {
- /* Image is above or below text */
- if (butPtr->compound == COMPOUND_TOP) {
- textYOffset = height + butPtr->padY;
- } else {
- imageYOffset = butPtr->textHeight + butPtr->padY;
- }
- fullHeight = height + butPtr->textHeight + butPtr->padY;
- fullWidth = (width > butPtr->textWidth ? width :
- butPtr->textWidth);
- textXOffset = (fullWidth - butPtr->textWidth)/2;
- imageXOffset = (fullWidth - width)/2;
- break;
- }
- case COMPOUND_LEFT:
- case COMPOUND_RIGHT: {
- /* Image is left or right of text */
- if (butPtr->compound == COMPOUND_LEFT) {
- textXOffset = width + butPtr->padX;
- } else {
- imageXOffset = butPtr->textWidth + butPtr->padX;
- }
- fullWidth = butPtr->textWidth + butPtr->padX + width;
- fullHeight = (height > butPtr->textHeight ? height :
- butPtr->textHeight);
- textYOffset = (fullHeight - butPtr->textHeight)/2;
- imageYOffset = (fullHeight - height)/2;
- break;
- }
- case COMPOUND_CENTER: {
- /* Image and text are superimposed */
- fullWidth = (width > butPtr->textWidth ? width :
- butPtr->textWidth);
- fullHeight = (height > butPtr->textHeight ? height :
- butPtr->textHeight);
- textXOffset = (fullWidth - butPtr->textWidth)/2;
- imageXOffset = (fullWidth - width)/2;
- textYOffset = (fullHeight - butPtr->textHeight)/2;
- imageYOffset = (fullHeight - height)/2;
- break;
- }
- case COMPOUND_NONE: {break;}
- }
- TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY,
- butPtr->indicatorSpace + fullWidth, fullHeight, &x, &y);
- x += butPtr->indicatorSpace;
- if (relief == TK_RELIEF_SUNKEN) {
- x += offset;
- y += offset;
- }
- imageXOffset += x;
- imageYOffset += y;
- if (butPtr->image != NULL) {
- if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) {
- Tk_RedrawImage(butPtr->selectImage, 0, 0,
- width, height, pixmap, imageXOffset, imageYOffset);
- } else {
- Tk_RedrawImage(butPtr->image, 0, 0,
- width, height, pixmap, imageXOffset, imageYOffset);
- }
- } else {
- XSetClipOrigin(butPtr->display, gc, imageXOffset, imageYOffset);
- XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc,
- 0, 0, (unsigned int) width, (unsigned int) height,
- imageXOffset, imageYOffset, 1);
- XSetClipOrigin(butPtr->display, gc, 0, 0);
- }
- Tk_DrawTextLayout(butPtr->display, pixmap, gc,
- butPtr->textLayout, x + textXOffset, y + textYOffset, 0, -1);
- Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
- butPtr->textLayout, x + textXOffset, y + textYOffset,
- butPtr->underline);
- height = fullHeight;
- drawRing = 1;
- } else {
- if (haveImage) {
- TkComputeAnchor(butPtr->anchor, tkwin, 0, 0,
- butPtr->indicatorSpace + width, height, &x, &y);
- x += butPtr->indicatorSpace;
-
- if (relief == TK_RELIEF_SUNKEN) {
- x += offset;
- y += offset;
- }
- imageXOffset += x;
- imageYOffset += y;
- if (butPtr->image != NULL) {
- if ((butPtr->selectImage != NULL) &&
- (butPtr->flags & SELECTED)) {
- Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height,
- pixmap, imageXOffset, imageYOffset);
- } else {
- Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap,
- imageXOffset, imageYOffset);
- }
- } else {
- XSetClipOrigin(butPtr->display, gc, x, y);
- XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0,
- (unsigned int) width, (unsigned int) height, x, y, 1);
- XSetClipOrigin(butPtr->display, gc, 0, 0);
- }
- } else {
- TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY,
- butPtr->indicatorSpace + butPtr->textWidth,
- butPtr->textHeight, &x, &y);
- x += butPtr->indicatorSpace;
-
- if (relief == TK_RELIEF_SUNKEN) {
- x += offset;
- y += offset;
- }
- Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout,
- x, y, 0, -1);
- Tk_UnderlineTextLayout(butPtr->display, pixmap, gc,
- butPtr->textLayout, x, y, butPtr->underline);
- height = butPtr->textHeight;
- drawRing = 1;
- }
- }
- /*
- * Draw the focus ring. If this is a push button then we need to
- * put it around the inner edge of the border, otherwise we put it
- * around the text. The text offsets are only non-zero when this
- * is a compound button.
- */
-
- if (drawRing && butPtr->flags & GOT_FOCUS && butPtr->type != TYPE_LABEL) {
- dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state);
- if (butPtr->type == TYPE_BUTTON || !butPtr->indicatorOn) {
- rect.top = butPtr->borderWidth + 1 + defaultWidth;
- rect.left = rect.top;
- rect.right = Tk_Width(tkwin) - rect.left;
- rect.bottom = Tk_Height(tkwin) - rect.top;
- } else {
- rect.top = y-1 + textYOffset;
- rect.left = x-1 + textXOffset;
- rect.right = x+butPtr->textWidth + 1 + textXOffset;
- rect.bottom = y+butPtr->textHeight + 2 + textYOffset;
- }
- SetTextColor(dc, gc->foreground);
- SetBkColor(dc, gc->background);
- DrawFocusRect(dc, &rect);
- TkWinReleaseDrawableDC(pixmap, dc, &state);
- }
- y += height/2;
-
- /*
- * Draw the indicator for check buttons and radio buttons. At this
- * point x and y refer to the top-left corner of the text or image
- * or bitmap.
- */
- if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn
- && tsdPtr->boxesPtr) {
- int xSrc, ySrc;
- x -= butPtr->indicatorSpace;
- y -= butPtr->indicatorDiameter / 2;
- xSrc = (butPtr->flags & SELECTED) ? tsdPtr->boxWidth : 0;
- if (butPtr->state == STATE_ACTIVE) {
- xSrc += tsdPtr->boxWidth*2;
- }
- ySrc = (butPtr->type == TYPE_RADIO_BUTTON) ? 0 : tsdPtr->boxHeight;
- /*
- * Update the palette in the boxes bitmap to reflect the current
- * button colors. Note that this code relies on the layout of the
- * bitmap's palette. Also, all of the colors used to draw the
- * bitmap must be in the palette that is selected into the DC of
- * the offscreen pixmap. This requires that the static colors
- * be placed into the palette.
- */
- if ((butPtr->state == STATE_DISABLED)
- && (butPtr->disabledFg == NULL)) {
- boxesPalette[PAL_CHECK] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_DARK_GC));
- } else {
- boxesPalette[PAL_CHECK] = FlipColor(gc->foreground);
- }
- boxesPalette[PAL_TOP_OUTER] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_DARK_GC));
- boxesPalette[PAL_TOP_INNER] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_DARK2));
- boxesPalette[PAL_BOTTOM_INNER] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_LIGHT2));
- boxesPalette[PAL_BOTTOM_OUTER] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_LIGHT_GC));
- if (butPtr->state == STATE_DISABLED) {
- boxesPalette[PAL_INTERIOR] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_LIGHT2));
- } else if (butPtr->selectBorder != NULL) {
- boxesPalette[PAL_INTERIOR] = FlipColor(TkWinGetBorderPixels(tkwin,
- butPtr->selectBorder, TK_3D_FLAT_GC));
- } else {
- boxesPalette[PAL_INTERIOR] = FlipColor(GetSysColor(COLOR_WINDOW));
- }
- boxesPalette[PAL_BACKGROUND] = FlipColor(TkWinGetBorderPixels(tkwin,
- border, TK_3D_FLAT_GC));
- dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state);
- StretchDIBits(dc, x, y, tsdPtr->boxWidth, tsdPtr->boxHeight,
- xSrc, ySrc, tsdPtr->boxWidth, tsdPtr->boxHeight,
- tsdPtr->boxesBits, (LPBITMAPINFO) tsdPtr->boxesPtr,
- DIB_RGB_COLORS, SRCCOPY);
- TkWinReleaseDrawableDC(pixmap, dc, &state);
- }
- /*
- * If the button is disabled with a stipple rather than a special
- * foreground color, generate the stippled effect. If the widget
- * is selected and we use a different background color when selected,
- * must temporarily modify the GC so the stippling is the right color.
- */
- if ((butPtr->state == STATE_DISABLED)
- && ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) {
- if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
- && (butPtr->selectBorder != NULL)) {
- XSetForeground(butPtr->display, butPtr->stippleGC,
- Tk_3DBorderColor(butPtr->selectBorder)->pixel);
- }
- /*
- * Stipple the whole button if no disabledFg was specified,
- * otherwise restrict stippling only to displayed image
- */
- if (butPtr->disabledFg == NULL) {
- XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC, 0, 0,
- (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin));
- } else {
- XFillRectangle(butPtr->display, pixmap, butPtr->stippleGC,
- imageXOffset, imageYOffset,
- (unsigned) imageWidth, (unsigned) imageHeight);
- }
- if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
- && (butPtr->selectBorder != NULL)) {
- XSetForeground(butPtr->display, butPtr->stippleGC,
- Tk_3DBorderColor(butPtr->normalBorder)->pixel);
- }
- }
- /*
- * Draw the border and traversal highlight last. This way, if the
- * button's contents overflow they'll be covered up by the border.
- */
- if (relief != TK_RELIEF_FLAT) {
- Tk_Draw3DRectangle(tkwin, pixmap, border,
- defaultWidth, defaultWidth,
- Tk_Width(tkwin) - 2*defaultWidth,
- Tk_Height(tkwin) - 2*defaultWidth,
- butPtr->borderWidth, relief);
- }
- if (defaultWidth != 0) {
- dc = TkWinGetDrawableDC(butPtr->display, pixmap, &state);
- TkWinFillRect(dc, 0, 0, Tk_Width(tkwin), defaultWidth,
- butPtr->highlightColorPtr->pixel);
- TkWinFillRect(dc, 0, 0, defaultWidth, Tk_Height(tkwin),
- butPtr->highlightColorPtr->pixel);
- TkWinFillRect(dc, 0, Tk_Height(tkwin) - defaultWidth,
- Tk_Width(tkwin), defaultWidth,
- butPtr->highlightColorPtr->pixel);
- TkWinFillRect(dc, Tk_Width(tkwin) - defaultWidth, 0,
- defaultWidth, Tk_Height(tkwin),
- butPtr->highlightColorPtr->pixel);
- TkWinReleaseDrawableDC(pixmap, dc, &state);
- }
- if (butPtr->flags & GOT_FOCUS) {
- Tk_SetCaretPos(tkwin, x, y, 0 /* not used */);
- }
- /*
- * Copy the information from the off-screen pixmap onto the screen,
- * then delete the pixmap.
- */
- XCopyArea(butPtr->display, pixmap, Tk_WindowId(tkwin),
- butPtr->copyGC, 0, 0, (unsigned) Tk_Width(tkwin),
- (unsigned) Tk_Height(tkwin), 0, 0);
- Tk_FreePixmap(butPtr->display, pixmap);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpComputeButtonGeometry --
- *
- * After changes in a button's text or bitmap, this procedure
- * recomputes the button's geometry and passes this information
- * along to the geometry manager for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The button's window may change size.
- *
- *----------------------------------------------------------------------
- */
- void
- TkpComputeButtonGeometry(butPtr)
- register TkButton *butPtr; /* Button whose geometry may have changed. */
- {
- int txtWidth, txtHeight; /* Width and height of text */
- int imgWidth, imgHeight; /* Width and height of image */
- int width = 0, height = 0; /* Width and height of button */
- int haveImage, haveText;
- int avgWidth;
- int minWidth;
- /* Vertical and horizontal dialog units size in pixels. */
- double vDLU, hDLU;
- Tk_FontMetrics fm;
-
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- if (butPtr->highlightWidth < 0) {
- butPtr->highlightWidth = 0;
- }
- butPtr->inset = butPtr->highlightWidth + butPtr->borderWidth;
- butPtr->indicatorSpace = 0;
- if (!tsdPtr->boxesPtr) {
- InitBoxes();
- }
- /* Figure out image metrics */
- if (butPtr->image != NULL) {
- Tk_SizeOfImage(butPtr->image, &imgWidth, &imgHeight);
- haveImage = 1;
- } else if (butPtr->bitmap != None) {
- Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap,
- &imgWidth, &imgHeight);
- haveImage = 1;
- } else {
- imgWidth = 0;
- imgHeight = 0;
- haveImage = 0;
- }
- /*
- * Figure out font metrics (even if we don't have text because we need
- * DLUs (based on font, not text) for some spacing calculations below).
- */
- Tk_FreeTextLayout(butPtr->textLayout);
- butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont,
- Tcl_GetString(butPtr->textPtr), -1, butPtr->wrapLength,
- butPtr->justify, 0, &butPtr->textWidth, &butPtr->textHeight);
- txtWidth = butPtr->textWidth;
- txtHeight = butPtr->textHeight;
- haveText = (*(Tcl_GetString(butPtr->textPtr)) != ' ');
- avgWidth = (Tk_TextWidth(butPtr->tkfont,
- "abcdefghijklmnopqurstuvwzyABCDEFGHIJKLMNOPQURSTUVWZY",
- 52) + 26) / 52;
- Tk_GetFontMetrics(butPtr->tkfont, &fm);
- /* Compute dialog units for layout calculations. */
- hDLU = avgWidth / 4.0;
- vDLU = fm.linespace / 8.0;
- /*
- * First, let's try to compute button size "by the book" (See "Microsoft
- * Windows User Experience" (ISBN 0-7356-0566-1), Chapter 14 - Visual
- * Design, Section 4 - Layout (page 448)).
- *
- * Note, that Tk "buttons" are Microsoft "Command buttons", Tk
- * "checkbuttons" are Microsoft "check boxes", Tk "radiobuttons" are
- * Microsoft "option buttons", and Tk "labels" are Microsoft "text
- * labels".
- */
- /*
- * Set width and height by button type; See User Experience table, p449.
- * These are text-based measurements, even if the text is "".
- * If there is an image, height will get set again later.
- */
- switch (butPtr->type) {
- case TYPE_BUTTON: {
- /*
- * First compute the minimum width of the button in
- * characters. MWUE says that the button should be
- * 50 DLUs. We allow 6 DLUs padding left and right.
- * (There is no rule but this is consistent with the
- * fact that button text is 8 DLUs high and buttons
- * are 14 DLUs high.)
- *
- * The width is specified in characters. A character
- * is, by definition, 4 DLUs wide. 11 char * 4 DLU
- * is 44 DLU + 6 DLU padding = 50 DLU. Therefore,
- * width = -11 -> MWUE compliant buttons.
- */
- if (butPtr->width < 0) {
- /* Min width in characters */
- minWidth = -(butPtr->width);
- /* Allow for characters */
- width = avgWidth * minWidth;
- /* Add for padding */
- width += (int)(0.5 + (6 * hDLU));
- }
- /*
- * If shrink-wrapping was requested (width = 0) or
- * if the text is wider than the default button width,
- * adjust the button width up to suit.
- */
- if (butPtr->width == 0
- || (txtWidth + (int)(0.5 + (6 * hDLU)) > width)) {
- width = txtWidth + (int)(0.5 + (6 * hDLU));
- }
- /*
- * The User Experience says 14 DLUs. Since text is, by
- * definition, 8 DLU/line, this allows for multi-line text
- * while working perfectly for single-line text.
- */
- height = txtHeight + (int)(0.5 + (6 * vDLU));
- /*
- * The above includes 6 DLUs of padding which should include
- * defaults of 1 pixel of highlightwidth, 2 pixels of
- * borderwidth, 1 pixel of padding and 1 pixel of extra inset
- * on each side. Those will be added later so reduce width
- * and height now to compensate.
- */
- width -= 10;
- height -= 10;
- if (!haveImage) {
- /*
- * Extra inset for the focus ring.
- */
- butPtr->inset += 1;
- }
- break;
- }
- case TYPE_LABEL: {
- /*
- * The User Experience says, "as wide as needed".
- */
- width = txtWidth;
- /*
- * The User Experience says, "8 (DLUs) per line of text."
- * Since text is, by definition, 8 DLU/line, this allows
- * for multi-line text while working perfectly for single-line
- * text.
- */
- if (txtHeight) {
- height = txtHeight;
- } else {
- /*
- * If there's no text, we want the height to be one linespace.
- */
- height = fm.linespace;
- }
- break;
- }
- case TYPE_RADIO_BUTTON:
- case TYPE_CHECK_BUTTON: {
- /* See note for TYPE_LABEL */
- width = txtWidth;
- /*
- * The User Experience says 10 DLUs. (Is that one DLU above
- * and below for the focus ring?) See note above about
- * multi-line text and 8 DLU/line.
- */
- height = txtHeight + (int)(0.5 + (2.0 * vDLU));
-
- /*
- * The above includes 2 DLUs of padding which should include
- * defaults of 1 pixel of highlightwidth, 0 pixels of
- * borderwidth, and 1 pixel of padding on each side. Those
- * will be added later so reduce height now to compensate.
- */
- height -= 4;
-
- /*
- * Extra inset for the focus ring.
- */
- butPtr->inset += 1;
- break;
- }
- }/* switch */
- /*
- * At this point, the width and height are correct for a Tk text
- * button, excluding padding and inset, but we have to allow for
- * compound buttons. The image may be above, below, left, or right
- * of the text.
- */
- /*
- * If the button is compound (i.e., it shows both an image and text),
- * the new geometry is a combination of the image and text geometry.
- * We only honor the compound bit if the button has both text and an
- * image, because otherwise it is not really a compound button.
- */
- if (butPtr->compound != COMPOUND_NONE && haveImage && haveText) {
- switch ((enum compound) butPtr->compound) {
- case COMPOUND_TOP:
- case COMPOUND_BOTTOM: {
- /* Image is above or below text */
- if (imgWidth > width) {
- width = imgWidth;
- }
- height += imgHeight + butPtr->padY;
- break;
- }
- case COMPOUND_LEFT:
- case COMPOUND_RIGHT: {
- /* Image is left or right of text */
- /*
- * Only increase width of button if image doesn't fit in
- * slack space of default button width
- */
- if ((imgWidth + txtWidth + butPtr->padX) > width) {
- width = imgWidth + txtWidth + butPtr->padX;
- }
- if (imgHeight > height) {
- height = imgHeight;
- }
- break;
- }
- case COMPOUND_CENTER: {
- /* Image and text are superimposed */
- if (imgWidth > width) {
- width = imgWidth;
- }
- if (imgHeight > height) {
- height = imgHeight;
- }
- break;
- }
- } /* switch */
- /* Fix up for minimum width */
- if (butPtr->width < 0) {
- /* minWidth in pixels (because there's an image */
- minWidth = -(butPtr->width);
- if (width < minWidth) {
- width = minWidth;
- }
- } else if (butPtr->width > 0) {
- width = butPtr->width;
- }
- if (butPtr->height > 0) {
- height = butPtr->height;
- }
- width += 2*butPtr->padX;
- height += 2*butPtr->padY;
- } else if (haveImage) {
- if (butPtr->width > 0) {
- width = butPtr->width;
- } else {
- width = imgWidth;
- }
- if (butPtr->height > 0) {
- height = butPtr->height;
- } else {
- height = imgHeight;
- }
- } else {
- /* No image. May or may not be text. May or may not be compound. */
- /*
- * butPtr->width is in characters. We need to allow for that
- * many characters on the face, not in the over-all button width
- */
- if (butPtr->width > 0) {
- width = butPtr->width * avgWidth;
- }
- /*
- * butPtr->height is in lines of text. We need to allow for
- * that many lines on the face, not in the over-all button
- * height.
- */
- if (butPtr->height > 0) {
- height = butPtr->height * fm.linespace;
- /*
- * Make the same adjustments as above to get same height for
- * e.g. a one line text with -height 0 or 1. [Bug #565485]
- */
- switch (butPtr->type) {
- case TYPE_BUTTON: {
- height += (int)(0.5 + (6 * vDLU)) - 10;
- break;
- }
- case TYPE_RADIO_BUTTON:
- case TYPE_CHECK_BUTTON: {
- height += (int)(0.5 + (2.0 * vDLU)) - 4;
- break;
- }
- }
- }
-
- width += 2 * butPtr->padX;
- height += 2 * butPtr->padY;
- }
- /* Fix up width and height for indicator sizing and spacing */
- if (butPtr->type == TYPE_RADIO_BUTTON
- || butPtr->type == TYPE_CHECK_BUTTON) {
- if (butPtr->indicatorOn) {
- butPtr->indicatorDiameter = tsdPtr->boxHeight;
- /*
- * Make sure we can see the whole indicator, even if the text
- * or image is very small.
- */
- if (height < butPtr->indicatorDiameter) {
- height = butPtr->indicatorDiameter;
- }
- /*
- * There is no rule for space between the indicator and
- * the text (the two are atomic on 'Windows) but the User
- * Experience page 451 says leave 3 hDLUs between "text
- * labels and their associated controls".
- */
- butPtr->indicatorSpace = butPtr->indicatorDiameter +
- (int)(0.5 + (3.0 * hDLU));
- width += butPtr->indicatorSpace;
- }
- }
- /*
- * Inset is always added to the size.
- */
- width += 2 * butPtr->inset;
- height += 2 * butPtr->inset;
- Tk_GeometryRequest(butPtr->tkwin, width, height);
- Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset);
- }
- /*
- *----------------------------------------------------------------------
- *
- * ButtonProc --
- *
- * This function is call by Windows whenever an event occurs on
- * a button control created by Tk.
- *
- * Results:
- * Standard Windows return value.
- *
- * Side effects:
- * May generate events.
- *
- *----------------------------------------------------------------------
- */
- static LRESULT CALLBACK
- ButtonProc(hwnd, message, wParam, lParam)
- HWND hwnd;
- UINT message;
- WPARAM wParam;
- LPARAM lParam;
- {
- LRESULT result;
- WinButton *butPtr;
- Tk_Window tkwin = Tk_HWNDToWindow(hwnd);
- if (tkwin == NULL) {
- panic("ButtonProc called on an invalid HWND");
- }
- butPtr = (WinButton *)((TkWindow*)tkwin)->instanceData;
- switch(message) {
- case WM_ERASEBKGND:
- return 0;
- case BM_GETCHECK:
- if (((butPtr->info.type == TYPE_CHECK_BUTTON)
- || (butPtr->info.type == TYPE_RADIO_BUTTON))
- && butPtr->info.indicatorOn) {
- return (butPtr->info.flags & SELECTED)
- ? BST_CHECKED : BST_UNCHECKED;
- }
- return 0;
- case BM_GETSTATE: {
- DWORD state = 0;
- if (((butPtr->info.type == TYPE_CHECK_BUTTON)
- || (butPtr->info.type == TYPE_RADIO_BUTTON))
- && butPtr->info.indicatorOn) {
- state = (butPtr->info.flags & SELECTED)
- ? BST_CHECKED : BST_UNCHECKED;
- }
- if (butPtr->info.flags & GOT_FOCUS) {
- state |= BST_FOCUS;
- }
- return state;
- }
- case WM_ENABLE:
- break;
- case WM_PAINT: {
- PAINTSTRUCT ps;
- BeginPaint(hwnd, &ps);
- EndPaint(hwnd, &ps);
- TkpDisplayButton((ClientData)butPtr);
- /*
- * Special note: must cancel any existing idle handler
- * for TkpDisplayButton; it's no longer needed, and
- * TkpDisplayButton cleared the REDRAW_PENDING flag.
- */
-
- Tcl_CancelIdleCall(TkpDisplayButton, (ClientData)butPtr);
- return 0;
- }
- case BN_CLICKED: {
- int code;
- Tcl_Interp *interp = butPtr->info.interp;
- if (butPtr->info.state != STATE_DISABLED) {
- Tcl_Preserve((ClientData)interp);
- code = TkInvokeButton((TkButton*)butPtr);
- if (code != TCL_OK && code != TCL_CONTINUE
- && code != TCL_BREAK) {
- Tcl_AddErrorInfo(interp, "n (button invoke)");
- Tcl_BackgroundError(interp);
- }
- Tcl_Release((ClientData)interp);
- }
- Tcl_ServiceAll();
- return 0;
- }
- default:
- if (Tk_TranslateWinEvent(hwnd, message, wParam, lParam, &result)) {
- return result;
- }
- }
- return DefWindowProc(hwnd, message, wParam, lParam);
- }