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- /*
- * tkMacMenubutton.c --
- *
- * This file implements the Macintosh specific portion of the
- * menubutton widget.
- *
- * Copyright (c) 1996 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.
- *
- * SCCS: @(#) tkMacMenubutton.c 1.4 97/01/03 13:55:19
- */
-
- #include "tkMenubutton.h"
- #include "tkMacInt.h"
- #include <Controls.h>
-
- #define kShadowOffset (3) /* amount to offset shadow from frame */
- #define kTriangleWidth (11) /* width of the triangle */
- #define kTriangleHeight (6) /* height of the triangle */
- #define kTriangleMargin (5) /* margin around triangle */
-
- /*
- * Declaration of Unix specific button structure.
- */
-
- typedef struct MacMenuButton {
- TkMenuButton info; /* Generic button info. */
- } MacMenuButton;
-
- /*
- * The structure below defines menubutton class behavior by means of
- * procedures that can be invoked from generic window code.
- */
-
- TkClassProcs tkpMenubuttonClass = {
- NULL, /* createProc. */
- TkMenuButtonWorldChanged, /* geometryProc. */
- NULL /* modalProc. */
- };
-
- /*
- *----------------------------------------------------------------------
- *
- * TkpCreateMenuButton --
- *
- * Allocate a new TkMenuButton structure.
- *
- * Results:
- * Returns a newly allocated TkMenuButton structure.
- *
- * Side effects:
- * Registers an event handler for the widget.
- *
- *----------------------------------------------------------------------
- */
-
- TkMenuButton *
- TkpCreateMenuButton(
- Tk_Window tkwin)
- {
- MacMenuButton *butPtr = (MacMenuButton *)ckalloc(sizeof(MacMenuButton));
-
- return (TkMenuButton *) butPtr;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TkpDisplayMenuButton --
- *
- * This procedure is invoked to display a menubutton widget.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Commands are output to X to display the menubutton in its
- * current mode.
- *
- *----------------------------------------------------------------------
- */
-
- void
- TkpDisplayMenuButton(
- ClientData clientData) /* Information about widget. */
- {
- TkMenuButton *mbPtr = (TkMenuButton *) clientData;
- GC gc;
- Tk_3DBorder border;
- int x = 0; /* Initialization needed only to stop
- * compiler warning. */
- int y;
- Tk_Window tkwin = mbPtr->tkwin;
- int width, height;
- MacMenuButton * macMBPtr = (MacMenuButton *) mbPtr;
- GWorldPtr destPort;
- CGrafPtr saveWorld;
- GDHandle saveDevice;
- MacDrawable *macDraw;
-
- mbPtr->flags &= ~REDRAW_PENDING;
- if ((mbPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
- return;
- }
-
- GetGWorld(&saveWorld, &saveDevice);
- destPort = TkMacGetDrawablePort(Tk_WindowId(tkwin));
- SetGWorld(destPort, NULL);
- macDraw = (MacDrawable *) Tk_WindowId(tkwin);
-
- if ((mbPtr->state == tkDisabledUid) && (mbPtr->disabledFg != NULL)) {
- gc = mbPtr->disabledGC;
- } else if ((mbPtr->state == tkActiveUid) && !Tk_StrictMotif(mbPtr->tkwin)) {
- gc = mbPtr->activeTextGC;
- } else {
- gc = mbPtr->normalTextGC;
- }
- border = mbPtr->normalBorder;
-
- /*
- * In order to avoid screen flashes, this procedure redraws
- * the menu 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.
- */
-
- Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin), border, 0, 0,
- Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
-
- /*
- * Display image or bitmap or text for button.
- */
-
- if (mbPtr->image != None) {
- Tk_SizeOfImage(mbPtr->image, &width, &height);
-
- imageOrBitmap:
- TkComputeAnchor(mbPtr->anchor, tkwin, 0, 0,
- width + mbPtr->indicatorWidth, height, &x, &y);
- if (mbPtr->image != NULL) {
- Tk_RedrawImage(mbPtr->image, 0, 0, width, height,
- Tk_WindowId(tkwin), x, y);
- } else {
- XCopyPlane(mbPtr->display, mbPtr->bitmap, Tk_WindowId(tkwin),
- gc, 0, 0, (unsigned) width, (unsigned) height, x, y, 1);
- }
- } else if (mbPtr->bitmap != None) {
- Tk_SizeOfBitmap(mbPtr->display, mbPtr->bitmap, &width, &height);
- goto imageOrBitmap;
- } else {
- TkComputeAnchor(mbPtr->anchor, tkwin, mbPtr->padX, mbPtr->padY,
- mbPtr->textWidth + mbPtr->indicatorWidth, mbPtr->textHeight,
- &x, &y);
- Tk_DrawTextLayout(mbPtr->display, Tk_WindowId(tkwin), gc,
- mbPtr->textLayout, x, y, 0, -1);
- }
-
- /*
- * If the menu button is disabled with a stipple rather than a special
- * foreground color, generate the stippled effect.
- */
-
- if ((mbPtr->state == tkDisabledUid)
- && ((mbPtr->disabledFg == NULL) || (mbPtr->image != NULL))) {
- XFillRectangle(mbPtr->display, Tk_WindowId(tkwin), mbPtr->disabledGC,
- mbPtr->inset, mbPtr->inset,
- (unsigned) (Tk_Width(tkwin) - 2*mbPtr->inset),
- (unsigned) (Tk_Height(tkwin) - 2*mbPtr->inset));
- }
-
- /*
- * Draw the cascade indicator for the menu button on the
- * right side of the window, if desired.
- */
-
- if (mbPtr->indicatorOn) {
- int w, h, i;
- Rect r;
-
- r.left = macDraw->xOff + Tk_Width(tkwin) - mbPtr->inset
- - mbPtr->indicatorWidth;
- r.top = macDraw->yOff + Tk_Height(tkwin)/2
- - mbPtr->indicatorHeight/2;
- r.right = macDraw->xOff + Tk_Width(tkwin) - mbPtr->inset
- - kTriangleMargin;
- r.bottom = macDraw->yOff + Tk_Height(tkwin)/2
- + mbPtr->indicatorHeight/2;
-
- h = mbPtr->indicatorHeight;
- w = mbPtr->indicatorWidth - 1 - kTriangleMargin;
- for (i = 0; i < h; i++) {
- MoveTo(r.left + i, r.top + i);
- LineTo(r.left + i + w, r.top + i);
- w -= 2;
- }
- }
-
- /*
- * Draw the border and traversal highlight last. This way, if the
- * menu button's contents overflow onto the border they'll be covered
- * up by the border.
- */
-
- TkMacSetUpClippingRgn(Tk_WindowId(tkwin));
- if (mbPtr->borderWidth > 0) {
- Rect r;
-
- r.left = macDraw->xOff + mbPtr->highlightWidth + mbPtr->borderWidth;
- r.top = macDraw->yOff + mbPtr->highlightWidth + mbPtr->borderWidth;
- r.right = macDraw->xOff + Tk_Width(tkwin) - mbPtr->highlightWidth
- - mbPtr->borderWidth;
- r.bottom = macDraw->yOff + Tk_Height(tkwin) - mbPtr->highlightWidth
- - mbPtr->borderWidth;
- FrameRect(&r);
-
- PenSize(mbPtr->borderWidth - 1, mbPtr->borderWidth - 1);
- MoveTo(r.right, r.top + kShadowOffset);
- LineTo(r.right, r.bottom);
- LineTo(r.left + kShadowOffset, r.bottom);
- }
-
- if (mbPtr->state == tkDisabledUid) {
- }
-
- if (mbPtr->highlightWidth != 0) {
- GC gc;
-
- if (mbPtr->flags & GOT_FOCUS) {
- gc = Tk_GCForColor(mbPtr->highlightColorPtr, Tk_WindowId(tkwin));
- } else {
- gc = Tk_GCForColor(mbPtr->highlightBgColorPtr, Tk_WindowId(tkwin));
- }
- Tk_DrawFocusHighlight(tkwin, gc, mbPtr->highlightWidth,
- Tk_WindowId(tkwin));
- }
-
- SetGWorld(saveWorld, saveDevice);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TkpDestroyMenuButton --
- *
- * Free data structures associated with the menubutton control.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Restores the default control state.
- *
- *----------------------------------------------------------------------
- */
-
- void
- TkpDestroyMenuButton(
- TkMenuButton *mbPtr)
- {
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TkpComputeMenuButtonGeometry --
- *
- * After changes in a menu button's text or bitmap, this procedure
- * recomputes the menu button's geometry and passes this information
- * along to the geometry manager for the window.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The menu button's window may change size.
- *
- *----------------------------------------------------------------------
- */
-
- void
- TkpComputeMenuButtonGeometry(mbPtr)
- register TkMenuButton *mbPtr; /* Widget record for menu button. */
- {
- int width, height, mm, pixels;
-
- mbPtr->inset = mbPtr->highlightWidth + mbPtr->borderWidth;
- if (mbPtr->image != None) {
- Tk_SizeOfImage(mbPtr->image, &width, &height);
- if (mbPtr->width > 0) {
- width = mbPtr->width;
- }
- if (mbPtr->height > 0) {
- height = mbPtr->height;
- }
- } else if (mbPtr->bitmap != None) {
- Tk_SizeOfBitmap(mbPtr->display, mbPtr->bitmap, &width, &height);
- if (mbPtr->width > 0) {
- width = mbPtr->width;
- }
- if (mbPtr->height > 0) {
- height = mbPtr->height;
- }
- } else {
- Tk_FreeTextLayout(mbPtr->textLayout);
- mbPtr->textLayout = Tk_ComputeTextLayout(mbPtr->tkfont, mbPtr->text,
- -1, mbPtr->wrapLength, mbPtr->justify, 0, &mbPtr->textWidth,
- &mbPtr->textHeight);
- width = mbPtr->textWidth;
- height = mbPtr->textHeight;
- if (mbPtr->width > 0) {
- width = mbPtr->width * Tk_TextWidth(mbPtr->tkfont, "0", 1);
- }
- if (mbPtr->height > 0) {
- Tk_FontMetrics fm;
-
- Tk_GetFontMetrics(mbPtr->tkfont, &fm);
- height = mbPtr->height * fm.linespace;
- }
- width += 2*mbPtr->padX;
- height += 2*mbPtr->padY;
- }
-
- if (mbPtr->indicatorOn) {
- mm = WidthMMOfScreen(Tk_Screen(mbPtr->tkwin));
- pixels = WidthOfScreen(Tk_Screen(mbPtr->tkwin));
- mbPtr->indicatorHeight= kTriangleHeight;
- mbPtr->indicatorWidth = kTriangleWidth + kTriangleMargin;
- width += mbPtr->indicatorWidth;
- } else {
- mbPtr->indicatorHeight = 0;
- mbPtr->indicatorWidth = 0;
- }
-
- Tk_GeometryRequest(mbPtr->tkwin, (int) (width + 2*mbPtr->inset),
- (int) (height + 2*mbPtr->inset));
- Tk_SetInternalBorder(mbPtr->tkwin, mbPtr->inset);
- }
-