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Diffstat (limited to 'tcl/mac/tkMacScrlbr.c')
| -rw-r--r-- | tcl/mac/tkMacScrlbr.c | 1069 |
1 files changed, 0 insertions, 1069 deletions
diff --git a/tcl/mac/tkMacScrlbr.c b/tcl/mac/tkMacScrlbr.c deleted file mode 100644 index ce91a43012c..00000000000 --- a/tcl/mac/tkMacScrlbr.c +++ /dev/null @@ -1,1069 +0,0 @@ -/* - * tkMacScrollbar.c -- - * - * This file implements the Macintosh specific portion of the scrollbar - * widget. The Macintosh scrollbar may also draw a windows grow - * region under certain cases. - * - * 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. - * - * RCS: @(#) $Id$ - */ - -#include "tkScrollbar.h" -#include "tkMacInt.h" -#include <Controls.h> -#include <ControlDefinitions.h> - -/* - * The following definitions should really be in MacOS - * header files. They are included here as this is the only - * file that needs the declarations. - */ -typedef pascal void (*ThumbActionFunc)(void); - -#if GENERATINGCFM -typedef UniversalProcPtr ThumbActionUPP; -#else -typedef ThumbActionFunc ThumbActionUPP; -#endif - -enum { - uppThumbActionProcInfo = kPascalStackBased -}; - -#if GENERATINGCFM -#define NewThumbActionProc(userRoutine) \ - (ThumbActionUPP) NewRoutineDescriptor((ProcPtr)(userRoutine), uppThumbActionProcInfo, GetCurrentArchitecture()) -#else -#define NewThumbActionProc(userRoutine) \ - ((ThumbActionUPP) (userRoutine)) -#endif - -/* - * Minimum slider length, in pixels (designed to make sure that the slider - * is always easy to grab with the mouse). - */ - -#define MIN_SLIDER_LENGTH 5 - -/* - * Declaration of Windows specific scrollbar structure. - */ - -typedef struct MacScrollbar { - TkScrollbar info; /* Generic scrollbar info. */ - ControlRef sbHandle; /* Handle to the Scrollbar control struct. */ - int macFlags; /* Various flags; see below. */ -} MacScrollbar; - -/* - * Flag bits for scrollbars on the Mac: - * - * ALREADY_DEAD: Non-zero means this scrollbar has been - * destroyed, but has not been cleaned up. - * IN_MODAL_LOOP: Non-zero means this scrollbar is in the middle - * of a modal loop. - * ACTIVE: Non-zero means this window is currently - * active (in the foreground). - * FLUSH_TOP: Flush with top of Mac window. - * FLUSH_BOTTOM: Flush with bottom of Mac window. - * FLUSH_RIGHT: Flush with right of Mac window. - * FLUSH_LEFT: Flush with left of Mac window. - * SCROLLBAR_GROW: Non-zero means this window draws the grow - * region for the toplevel window. - * AUTO_ADJUST: Non-zero means we automatically adjust - * the size of the widget to align correctly - * along a Mac window. - * DRAW_GROW: Non-zero means we draw the grow region. - */ - -#define ALREADY_DEAD 1 -#define IN_MODAL_LOOP 2 -#define ACTIVE 4 -#define FLUSH_TOP 8 -#define FLUSH_BOTTOM 16 -#define FLUSH_RIGHT 32 -#define FLUSH_LEFT 64 -#define SCROLLBAR_GROW 128 -#define AUTO_ADJUST 256 -#define DRAW_GROW 512 - -/* - * Globals uses locally in this file. - */ -static ControlActionUPP scrollActionProc = NULL; /* Pointer to func. */ -static ThumbActionUPP thumbActionProc = NULL; /* Pointer to func. */ -static TkScrollbar *activeScrollPtr = NULL; /* Non-null when in thumb */ - /* proc. */ -/* - * Forward declarations for procedures defined later in this file: - */ - -static pascal void ScrollbarActionProc _ANSI_ARGS_((ControlRef theControl, - ControlPartCode partCode)); -static int ScrollbarBindProc _ANSI_ARGS_((ClientData clientData, - Tcl_Interp *interp, XEvent *eventPtr, - Tk_Window tkwin, KeySym keySym)); -static void ScrollbarEventProc _ANSI_ARGS_(( - ClientData clientData, XEvent *eventPtr)); -static pascal void ThumbActionProc _ANSI_ARGS_((void)); -static void UpdateControlValues _ANSI_ARGS_((MacScrollbar *macScrollPtr)); - -/* - * The class procedure table for the scrollbar widget. Leave the proc fields - * initialized to NULL, which should happen automatically because of the scope - * at which the variable is declared. - */ - -Tk_ClassProcs tkpScrollbarProcs = { - sizeof(Tk_ClassProcs) /* size */ -}; - -/* - *---------------------------------------------------------------------- - * - * TkpCreateScrollbar -- - * - * Allocate a new TkScrollbar structure. - * - * Results: - * Returns a newly allocated TkScrollbar structure. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -TkScrollbar * -TkpCreateScrollbar( - Tk_Window tkwin) /* New Tk Window. */ -{ - MacScrollbar * macScrollPtr; - TkWindow *winPtr = (TkWindow *)tkwin; - - if (scrollActionProc == NULL) { - scrollActionProc = NewControlActionProc(ScrollbarActionProc); - thumbActionProc = NewThumbActionProc(ThumbActionProc); - } - - macScrollPtr = (MacScrollbar *) ckalloc(sizeof(MacScrollbar)); - macScrollPtr->sbHandle = NULL; - macScrollPtr->macFlags = 0; - - Tk_CreateEventHandler(tkwin, ActivateMask|ExposureMask| - StructureNotifyMask|FocusChangeMask, - ScrollbarEventProc, (ClientData) macScrollPtr); - - if (!Tcl_GetAssocData(winPtr->mainPtr->interp, "TkScrollbar", NULL)) { - Tcl_SetAssocData(winPtr->mainPtr->interp, "TkScrollbar", NULL, - (ClientData)1); - TkCreateBindingProcedure(winPtr->mainPtr->interp, - winPtr->mainPtr->bindingTable, - (ClientData)Tk_GetUid("Scrollbar"), "<ButtonPress>", - ScrollbarBindProc, NULL, NULL); - } - - return (TkScrollbar *) macScrollPtr; -} - -/* - *-------------------------------------------------------------- - * - * TkpDisplayScrollbar -- - * - * This procedure redraws the contents of a scrollbar window. - * It is invoked as a do-when-idle handler, so it only runs - * when there's nothing else for the application to do. - * - * Results: - * None. - * - * Side effects: - * Information appears on the screen. - * - *-------------------------------------------------------------- - */ - -void -TkpDisplayScrollbar( - ClientData clientData) /* Information about window. */ -{ - register TkScrollbar *scrollPtr = (TkScrollbar *) clientData; - register MacScrollbar *macScrollPtr = (MacScrollbar *) clientData; - register Tk_Window tkwin = scrollPtr->tkwin; - - MacDrawable *macDraw; - CGrafPtr saveWorld; - GDHandle saveDevice; - GWorldPtr destPort; - WindowRef windowRef; - - if ((scrollPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) { - goto done; - } - - /* - * Draw the focus or any 3D relief we may have. - */ - if (scrollPtr->highlightWidth != 0) { - GC fgGC, bgGC; - - bgGC = Tk_GCForColor(scrollPtr->highlightBgColorPtr, - Tk_WindowId(tkwin)); - - if (scrollPtr->flags & GOT_FOCUS) { - fgGC = Tk_GCForColor(scrollPtr->highlightColorPtr, - Tk_WindowId(tkwin)); - TkpDrawHighlightBorder(tkwin, fgGC, bgGC, scrollPtr->highlightWidth, - Tk_WindowId(tkwin)); - } else { - TkpDrawHighlightBorder(tkwin, bgGC, bgGC, scrollPtr->highlightWidth, - Tk_WindowId(tkwin)); - } - } - Tk_Draw3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder, - scrollPtr->highlightWidth, scrollPtr->highlightWidth, - Tk_Width(tkwin) - 2*scrollPtr->highlightWidth, - Tk_Height(tkwin) - 2*scrollPtr->highlightWidth, - scrollPtr->borderWidth, scrollPtr->relief); - - /* - * Set up port for drawing Macintosh control. - */ - macDraw = (MacDrawable *) Tk_WindowId(tkwin); - destPort = TkMacGetDrawablePort(Tk_WindowId(tkwin)); - GetGWorld(&saveWorld, &saveDevice); - SetGWorld(destPort, NULL); - TkMacSetUpClippingRgn(Tk_WindowId(tkwin)); - - if (macScrollPtr->sbHandle == NULL) { - Rect r; - WindowRef frontNonFloating; - - r.left = r.top = 0; - r.right = r.bottom = 1; - macScrollPtr->sbHandle = NewControl((WindowRef) destPort, &r, "\p", - false, (short) 500, 0, 1000, - scrollBarProc, (SInt32) scrollPtr); - - /* - * If we are foremost than make us active. - */ - - if (TkMacHaveAppearance() >= 0x110) { - frontNonFloating = FrontNonFloatingWindow(); - } else { - frontNonFloating = FrontWindow(); - } - - if ((WindowPtr) destPort == FrontWindow() || TkpIsWindowFloating((WindowPtr) destPort)) { - macScrollPtr->macFlags |= ACTIVE; - } - } - - /* - * Update the control values before we draw. - */ - windowRef = (**macScrollPtr->sbHandle).contrlOwner; - UpdateControlValues(macScrollPtr); - - if (macScrollPtr->macFlags & ACTIVE) { - Draw1Control(macScrollPtr->sbHandle); - if (macScrollPtr->macFlags & DRAW_GROW) { - DrawGrowIcon(windowRef); - } - } else { - (**macScrollPtr->sbHandle).contrlHilite = 255; - Draw1Control(macScrollPtr->sbHandle); - if (macScrollPtr->macFlags & DRAW_GROW) { - DrawGrowIcon(windowRef); - Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder, - Tk_Width(tkwin) - 13, Tk_Height(tkwin) - 13, - Tk_Width(tkwin), Tk_Height(tkwin), - 0, TK_RELIEF_FLAT); - } - } - - SetGWorld(saveWorld, saveDevice); - - done: - scrollPtr->flags &= ~REDRAW_PENDING; -} - -/* - *---------------------------------------------------------------------- - * - * TkpConfigureScrollbar -- - * - * This procedure is called after the generic code has finished - * processing configuration options, in order to configure - * platform specific options. - * - * Results: - * None. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -void -TkpConfigureScrollbar(scrollPtr) - register TkScrollbar *scrollPtr; /* Information about widget; may or - * may not already have values for - * some fields. */ -{ -} - -/* - *---------------------------------------------------------------------- - * - * TkpComputeScrollbarGeometry -- - * - * After changes in a scrollbar's size or configuration, this - * procedure recomputes various geometry information used in - * displaying the scrollbar. - * - * Results: - * None. - * - * Side effects: - * The scrollbar will be displayed differently. - * - *---------------------------------------------------------------------- - */ - -void -TkpComputeScrollbarGeometry( - register TkScrollbar *scrollPtr) /* Scrollbar whose geometry may - * have changed. */ -{ - MacScrollbar *macScrollPtr = (MacScrollbar *) scrollPtr; - int width, fieldLength, adjust = 0; - - if (scrollPtr->highlightWidth < 0) { - scrollPtr->highlightWidth = 0; - } - scrollPtr->inset = scrollPtr->highlightWidth + scrollPtr->borderWidth; - width = (scrollPtr->vertical) ? Tk_Width(scrollPtr->tkwin) - : Tk_Height(scrollPtr->tkwin); - scrollPtr->arrowLength = width - 2*scrollPtr->inset + 1; - fieldLength = (scrollPtr->vertical ? Tk_Height(scrollPtr->tkwin) - : Tk_Width(scrollPtr->tkwin)) - - 2*(scrollPtr->arrowLength + scrollPtr->inset); - if (fieldLength < 0) { - fieldLength = 0; - } - scrollPtr->sliderFirst = fieldLength*scrollPtr->firstFraction; - scrollPtr->sliderLast = fieldLength*scrollPtr->lastFraction; - - /* - * Adjust the slider so that some piece of it is always - * displayed in the scrollbar and so that it has at least - * a minimal width (so it can be grabbed with the mouse). - */ - - if (scrollPtr->sliderFirst > (fieldLength - 2*scrollPtr->borderWidth)) { - scrollPtr->sliderFirst = fieldLength - 2*scrollPtr->borderWidth; - } - if (scrollPtr->sliderFirst < 0) { - scrollPtr->sliderFirst = 0; - } - if (scrollPtr->sliderLast < (scrollPtr->sliderFirst - + MIN_SLIDER_LENGTH)) { - scrollPtr->sliderLast = scrollPtr->sliderFirst + MIN_SLIDER_LENGTH; - } - if (scrollPtr->sliderLast > fieldLength) { - scrollPtr->sliderLast = fieldLength; - } - scrollPtr->sliderFirst += scrollPtr->arrowLength + scrollPtr->inset; - scrollPtr->sliderLast += scrollPtr->arrowLength + scrollPtr->inset; - - /* - * Register the desired geometry for the window (leave enough space - * for the two arrows plus a minimum-size slider, plus border around - * the whole window, if any). Then arrange for the window to be - * redisplayed. - */ - - if (scrollPtr->vertical) { - if ((macScrollPtr->macFlags & AUTO_ADJUST) && - (macScrollPtr->macFlags & (FLUSH_RIGHT|FLUSH_LEFT))) { - adjust--; - } - Tk_GeometryRequest(scrollPtr->tkwin, - scrollPtr->width + 2*scrollPtr->inset + adjust, - 2*(scrollPtr->arrowLength + scrollPtr->borderWidth - + scrollPtr->inset)); - } else { - if ((macScrollPtr->macFlags & AUTO_ADJUST) && - (macScrollPtr->macFlags & (FLUSH_TOP|FLUSH_BOTTOM))) { - adjust--; - } - Tk_GeometryRequest(scrollPtr->tkwin, - 2*(scrollPtr->arrowLength + scrollPtr->borderWidth - + scrollPtr->inset), scrollPtr->width + 2*scrollPtr->inset + adjust); - } - Tk_SetInternalBorder(scrollPtr->tkwin, scrollPtr->inset); -} - -/* - *---------------------------------------------------------------------- - * - * TkpDestroyScrollbar -- - * - * Free data structures associated with the scrollbar control. - * - * Results: - * None. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -void -TkpDestroyScrollbar( - TkScrollbar *scrollPtr) /* Scrollbar to destroy. */ -{ - MacScrollbar *macScrollPtr = (MacScrollbar *)scrollPtr; - - if (macScrollPtr->sbHandle != NULL) { - if (!(macScrollPtr->macFlags & IN_MODAL_LOOP)) { - DisposeControl(macScrollPtr->sbHandle); - macScrollPtr->sbHandle = NULL; - } - } - macScrollPtr->macFlags |= ALREADY_DEAD; -} - -/* - *-------------------------------------------------------------- - * - * TkpScrollbarPosition -- - * - * Determine the scrollbar element corresponding to a - * given position. - * - * Results: - * One of TOP_ARROW, TOP_GAP, etc., indicating which element - * of the scrollbar covers the position given by (x, y). If - * (x,y) is outside the scrollbar entirely, then OUTSIDE is - * returned. - * - * Side effects: - * None. - * - *-------------------------------------------------------------- - */ - -int -TkpScrollbarPosition( - TkScrollbar *scrollPtr, /* Scrollbar widget record. */ - int x, int y) /* Coordinates within scrollPtr's - * window. */ -{ - MacScrollbar *macScrollPtr = (MacScrollbar *) scrollPtr; - GWorldPtr destPort; - int length, width, tmp, inactive = false; - ControlPartCode part; - Point where; - Rect bounds; - - if (scrollPtr->vertical) { - length = Tk_Height(scrollPtr->tkwin); - width = Tk_Width(scrollPtr->tkwin); - } else { - tmp = x; - x = y; - y = tmp; - length = Tk_Width(scrollPtr->tkwin); - width = Tk_Height(scrollPtr->tkwin); - } - - if ((x < scrollPtr->inset) || (x >= (width - scrollPtr->inset)) - || (y < scrollPtr->inset) || (y >= (length - scrollPtr->inset))) { - return OUTSIDE; - } - - /* - * All of the calculations in this procedure mirror those in - * DisplayScrollbar. Be sure to keep the two consistent. On the - * Macintosh we use the OS call TestControl to do this mapping. - * For TestControl to work, the scrollbar must be active and must - * be in the current port. - */ - - destPort = TkMacGetDrawablePort(Tk_WindowId(scrollPtr->tkwin)); - SetGWorld(destPort, NULL); - UpdateControlValues(macScrollPtr); - if ((**macScrollPtr->sbHandle).contrlHilite == 255) { - inactive = true; - (**macScrollPtr->sbHandle).contrlHilite = 0; - } - - TkMacWinBounds((TkWindow *) scrollPtr->tkwin, &bounds); - where.h = x + bounds.left; - where.v = y + bounds.top; - part = TestControl(((MacScrollbar *) scrollPtr)->sbHandle, where); - if (inactive) { - (**macScrollPtr->sbHandle).contrlHilite = 255; - } - switch (part) { - case kControlUpButtonPart: - return TOP_ARROW; - case kControlPageUpPart: - return TOP_GAP; - case kControlIndicatorPart: - return SLIDER; - case kControlPageDownPart: - return BOTTOM_GAP; - case kControlDownButtonPart: - return BOTTOM_ARROW; - default: - return OUTSIDE; - } -} - -/* - *-------------------------------------------------------------- - * - * ThumbActionProc -- - * - * Callback procedure used by the Macintosh toolbox call - * TrackControl. This call is used to track the thumb of - * the scrollbar. Unlike the ScrollbarActionProc function - * this function is called once and basically takes over - * tracking the scrollbar from the control. This is done - * to avoid conflicts with what the control plans to draw. - * - * Results: - * None. - * - * Side effects: - * May change the display. - * - *-------------------------------------------------------------- - */ - -static pascal void -ThumbActionProc() -{ - register TkScrollbar *scrollPtr = activeScrollPtr; - register MacScrollbar *macScrollPtr = (MacScrollbar *) activeScrollPtr; - Tcl_DString cmdString; - Rect nullRect = {0,0,0,0}; - int origValue, trackBarPin; - double thumbWidth, newFirstFraction, trackBarSize; - char vauleString[40]; - Point currentPoint = { 0, 0 }; - Point lastPoint = { 0, 0 }; - Rect trackRect; - Tcl_Interp *interp; - - if (scrollPtr == NULL) { - return; - } - - Tcl_DStringInit(&cmdString); - - /* - * First compute values that will remain constant during the tracking - * of the thumb. The variable trackBarSize is the length of the scrollbar - * minus the 2 arrows and half the width of the thumb on both sides - * (3 * arrowLength). The variable trackBarPin is the lower starting point - * of the drag region. - * - * Note: the arrowLength is equal to the thumb width of a Mac scrollbar. - */ - origValue = GetControlValue(macScrollPtr->sbHandle); - trackRect = (**macScrollPtr->sbHandle).contrlRect; - if (scrollPtr->vertical == true) { - trackBarSize = (double) (trackRect.bottom - trackRect.top - - (scrollPtr->arrowLength * 3)); - trackBarPin = trackRect.top + scrollPtr->arrowLength - + (scrollPtr->arrowLength / 2); - InsetRect(&trackRect, -25, -113); - - } else { - trackBarSize = (double) (trackRect.right - trackRect.left - - (scrollPtr->arrowLength * 3)); - trackBarPin = trackRect.left + scrollPtr->arrowLength - + (scrollPtr->arrowLength / 2); - InsetRect(&trackRect, -113, -25); - } - - /* - * Track the mouse while the button is held down. If the mouse is moved, - * we calculate the value that should be passed to the "command" part of - * the scrollbar. - */ - while (StillDown()) { - GetMouse(¤tPoint); - if (EqualPt(currentPoint, lastPoint)) { - continue; - } - lastPoint = currentPoint; - - /* - * Calculating this value is a little tricky. We need to calculate a - * value for where the thumb would be in a Motif widget (variable - * thumb). This value is what the "command" expects and is what will - * be resent to the scrollbar to update its value. - */ - thumbWidth = scrollPtr->lastFraction - scrollPtr->firstFraction; - if (PtInRect(currentPoint, &trackRect)) { - if (scrollPtr->vertical == true) { - newFirstFraction = (1.0 - thumbWidth) * - ((double) (currentPoint.v - trackBarPin) / trackBarSize); - } else { - newFirstFraction = (1.0 - thumbWidth) * - ((double) (currentPoint.h - trackBarPin) / trackBarSize); - } - } else { - newFirstFraction = ((double) origValue / 1000.0) - * (1.0 - thumbWidth); - } - - sprintf(vauleString, "%g", newFirstFraction); - - Tcl_DStringSetLength(&cmdString, 0); - Tcl_DStringAppend(&cmdString, scrollPtr->command, - scrollPtr->commandSize); - Tcl_DStringAppendElement(&cmdString, "moveto"); - Tcl_DStringAppendElement(&cmdString, vauleString); - - interp = scrollPtr->interp; - Tcl_Preserve((ClientData) interp); - Tcl_GlobalEval(interp, cmdString.string); - Tcl_Release((ClientData) interp); - - Tcl_DStringSetLength(&cmdString, 0); - Tcl_DStringAppend(&cmdString, "update idletasks", - strlen("update idletasks")); - Tcl_Preserve((ClientData) interp); - Tcl_GlobalEval(interp, cmdString.string); - Tcl_Release((ClientData) interp); - } - - /* - * This next bit of code is a bit of a hack - but needed. The problem is - * that the control wants to draw the drag outline if the control value - * changes during the drag (which it does). What we do here is change the - * clip region to hide this drawing from the user. - */ - ClipRect(&nullRect); - - Tcl_DStringFree(&cmdString); - return; -} - -/* - *-------------------------------------------------------------- - * - * ScrollbarActionProc -- - * - * Callback procedure used by the Macintosh toolbox call - * TrackControl. This call will update the display while - * the scrollbar is being manipulated by the user. - * - * Results: - * None. - * - * Side effects: - * May change the display. - * - *-------------------------------------------------------------- - */ - -static pascal void -ScrollbarActionProc( - ControlRef theControl, /* Handle to scrollbat control */ - ControlPartCode partCode) /* Part of scrollbar that was "hit" */ -{ - register TkScrollbar *scrollPtr = (TkScrollbar *) GetControlReference(theControl); - Tcl_DString cmdString; - - Tcl_DStringInit(&cmdString); - Tcl_DStringAppend(&cmdString, scrollPtr->command, - scrollPtr->commandSize); - - if (partCode == kControlUpButtonPart || partCode == kControlDownButtonPart) { - Tcl_DStringAppendElement(&cmdString, "scroll"); - Tcl_DStringAppendElement(&cmdString, - (partCode == kControlUpButtonPart ) ? "-1" : "1"); - Tcl_DStringAppendElement(&cmdString, "unit"); - } else if (partCode == kControlPageUpPart || partCode == kControlPageDownPart) { - Tcl_DStringAppendElement(&cmdString, "scroll"); - Tcl_DStringAppendElement(&cmdString, - (partCode == kControlPageUpPart ) ? "-1" : "1"); - Tcl_DStringAppendElement(&cmdString, "page"); - } - Tcl_Preserve((ClientData) scrollPtr->interp); - Tcl_DStringAppend(&cmdString, "; update idletasks", - strlen("; update idletasks")); - Tcl_GlobalEval(scrollPtr->interp, cmdString.string); - Tcl_Release((ClientData) scrollPtr->interp); - - Tcl_DStringFree(&cmdString); -} - -/* - *-------------------------------------------------------------- - * - * ScrollbarBindProc -- - * - * This procedure is invoked when the default <ButtonPress> - * binding on the Scrollbar bind tag fires. - * - * Results: - * None. - * - * Side effects: - * The event enters a modal loop. - * - *-------------------------------------------------------------- - */ - -static int -ScrollbarBindProc( - ClientData clientData, /* Not used. */ - Tcl_Interp *interp, /* Interp with binding. */ - XEvent *eventPtr, /* X event that triggered binding. */ - Tk_Window tkwin, /* Target window for event. */ - KeySym keySym) /* The KeySym if a key event. */ -{ - TkWindow *winPtr = (TkWindow*)tkwin; - TkScrollbar *scrollPtr = (TkScrollbar *) winPtr->instanceData; - MacScrollbar *macScrollPtr = (MacScrollbar *) winPtr->instanceData; - - Tcl_Preserve((ClientData)scrollPtr); - macScrollPtr->macFlags |= IN_MODAL_LOOP; - - if (eventPtr->type == ButtonPress) { - Point where; - Rect bounds; - int part, x, y, dummy; - unsigned int state; - CGrafPtr saveWorld; - GDHandle saveDevice; - GWorldPtr destPort; - Window window; - - /* - * To call Macintosh control routines we must have the port - * set to the window containing the control. We will then test - * which part of the control was hit and act accordingly. - */ - destPort = TkMacGetDrawablePort(Tk_WindowId(scrollPtr->tkwin)); - GetGWorld(&saveWorld, &saveDevice); - SetGWorld(destPort, NULL); - TkMacSetUpClippingRgn(Tk_WindowId(scrollPtr->tkwin)); - - TkMacWinBounds((TkWindow *) scrollPtr->tkwin, &bounds); - where.h = eventPtr->xbutton.x + bounds.left; - where.v = eventPtr->xbutton.y + bounds.top; - part = TestControl(macScrollPtr->sbHandle, where); - if (part == kControlIndicatorPart && scrollPtr->jump == false) { - /* - * Case 1: In thumb, no jump scrolling. Call track control - * with the thumb action proc which will do most of the work. - * Set the global activeScrollPtr to the current control - * so the callback may have access to it. - */ - activeScrollPtr = scrollPtr; - part = TrackControl(macScrollPtr->sbHandle, where, - (ControlActionUPP) thumbActionProc); - activeScrollPtr = NULL; - } else if (part == kControlIndicatorPart) { - /* - * Case 2: in thumb with jump scrolling. Call TrackControl - * with a NULL action proc. Use the new value of the control - * to set update the control. - */ - part = TrackControl(macScrollPtr->sbHandle, where, NULL); - if (part == kControlIndicatorPart) { - double newFirstFraction, thumbWidth; - Tcl_DString cmdString; - char vauleString[TCL_DOUBLE_SPACE]; - - /* - * The following calculation takes the new control - * value and maps it to what Tk needs for its variable - * thumb size representation. - */ - thumbWidth = scrollPtr->lastFraction - - scrollPtr->firstFraction; - newFirstFraction = (1.0 - thumbWidth) * - ((double) GetControlValue(macScrollPtr->sbHandle) / 1000.0); - sprintf(vauleString, "%g", newFirstFraction); - - Tcl_DStringInit(&cmdString); - Tcl_DStringAppend(&cmdString, scrollPtr->command, - strlen(scrollPtr->command)); - Tcl_DStringAppendElement(&cmdString, "moveto"); - Tcl_DStringAppendElement(&cmdString, vauleString); - Tcl_DStringAppend(&cmdString, "; update idletasks", - strlen("; update idletasks")); - - interp = scrollPtr->interp; - Tcl_Preserve((ClientData) interp); - Tcl_GlobalEval(interp, cmdString.string); - Tcl_Release((ClientData) interp); - Tcl_DStringFree(&cmdString); - } - } else if (part != 0) { - /* - * Case 3: in any other part of the scrollbar. We call - * TrackControl with the scrollActionProc which will do - * most all the work. - */ - TrackControl(macScrollPtr->sbHandle, where, scrollActionProc); - HiliteControl(macScrollPtr->sbHandle, 0); - } - - /* - * The TrackControl call will "eat" the ButtonUp event. We now - * generate a ButtonUp event so Tk will unset implicit grabs etc. - */ - GetMouse(&where); - XQueryPointer(NULL, None, &window, &window, &x, - &y, &dummy, &dummy, &state); - window = Tk_WindowId(scrollPtr->tkwin); - TkGenerateButtonEvent(x, y, window, state); - - SetGWorld(saveWorld, saveDevice); - } - - if (macScrollPtr->sbHandle && (macScrollPtr->macFlags & ALREADY_DEAD)) { - DisposeControl(macScrollPtr->sbHandle); - macScrollPtr->sbHandle = NULL; - } - macScrollPtr->macFlags &= ~IN_MODAL_LOOP; - Tcl_Release((ClientData)scrollPtr); - - return TCL_OK; -} - -/* - *-------------------------------------------------------------- - * - * ScrollbarEventProc -- - * - * This procedure is invoked by the Tk dispatcher for various - * events on scrollbars. - * - * Results: - * None. - * - * Side effects: - * When the window gets deleted, internal structures get - * cleaned up. When it gets exposed, it is redisplayed. - * - *-------------------------------------------------------------- - */ - -static void -ScrollbarEventProc( - ClientData clientData, /* Information about window. */ - XEvent *eventPtr) /* Information about event. */ -{ - TkScrollbar *scrollPtr = (TkScrollbar *) clientData; - MacScrollbar *macScrollPtr = (MacScrollbar *) clientData; - - if (eventPtr->type == UnmapNotify) { - TkMacSetScrollbarGrow((TkWindow *) scrollPtr->tkwin, false); - } else if (eventPtr->type == ActivateNotify) { - macScrollPtr->macFlags |= ACTIVE; - TkScrollbarEventuallyRedraw((ClientData) scrollPtr); - } else if (eventPtr->type == DeactivateNotify) { - macScrollPtr->macFlags &= ~ACTIVE; - TkScrollbarEventuallyRedraw((ClientData) scrollPtr); - } else { - TkScrollbarEventProc(clientData, eventPtr); - } -} - -/* - *-------------------------------------------------------------- - * - * UpdateControlValues -- - * - * This procedure updates the Macintosh scrollbar control - * to display the values defined by the Tk scrollbar. - * - * Results: - * None. - * - * Side effects: - * The Macintosh control is updated. - * - *-------------------------------------------------------------- - */ - -static void -UpdateControlValues( - MacScrollbar *macScrollPtr) /* Scrollbar data struct. */ -{ - TkScrollbar *scrollPtr = (TkScrollbar *) macScrollPtr; - Tk_Window tkwin = scrollPtr->tkwin; - MacDrawable * macDraw = (MacDrawable *) Tk_WindowId(scrollPtr->tkwin); - WindowRef windowRef = (**macScrollPtr->sbHandle).contrlOwner; - double middle; - int drawGrowRgn = false; - int flushRight = false; - int flushBottom = false; - - /* - * We can't use the Macintosh commands SizeControl and MoveControl as these - * calls will also cause a redraw which in our case will also cause - * flicker. To avoid this we adjust the control record directly. The - * Draw1Control command appears to just draw where ever the control says to - * draw so this seems right. - * - * NOTE: changing the control record directly may not work when - * Apple releases the Copland version of the MacOS (or when hell is cold). - */ - - (**macScrollPtr->sbHandle).contrlRect.left = macDraw->xOff + scrollPtr->inset; - (**macScrollPtr->sbHandle).contrlRect.top = macDraw->yOff + scrollPtr->inset; - (**macScrollPtr->sbHandle).contrlRect.right = macDraw->xOff + Tk_Width(tkwin) - - scrollPtr->inset; - (**macScrollPtr->sbHandle).contrlRect.bottom = macDraw->yOff + - Tk_Height(tkwin) - scrollPtr->inset; - - /* - * To make Tk applications look more like Macintosh applications without - * requiring additional work by the Tk developer we do some cute tricks. - * The first trick plays with the size of the widget to get it to overlap - * with the side of the window by one pixel (we don't do this if the placer - * is the geometry manager). The second trick shrinks the scrollbar if it - * it covers the area of the grow region ao the scrollbar can also draw - * the grow region if need be. - */ - if (!strcmp(macDraw->winPtr->geomMgrPtr->name, "place")) { - macScrollPtr->macFlags &= AUTO_ADJUST; - } else { - macScrollPtr->macFlags |= AUTO_ADJUST; - } - /* TODO: use accessor function!!! */ - if (windowRef->portRect.left == (**macScrollPtr->sbHandle).contrlRect.left) { - if (macScrollPtr->macFlags & AUTO_ADJUST) { - (**macScrollPtr->sbHandle).contrlRect.left--; - } - if (!(macScrollPtr->macFlags & FLUSH_LEFT)) { - macScrollPtr->macFlags |= FLUSH_LEFT; - if (scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - } else if (macScrollPtr->macFlags & FLUSH_LEFT) { - macScrollPtr->macFlags &= ~FLUSH_LEFT; - if (scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - - if (windowRef->portRect.top == (**macScrollPtr->sbHandle).contrlRect.top) { - if (macScrollPtr->macFlags & AUTO_ADJUST) { - (**macScrollPtr->sbHandle).contrlRect.top--; - } - if (!(macScrollPtr->macFlags & FLUSH_TOP)) { - macScrollPtr->macFlags |= FLUSH_TOP; - if (! scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - } else if (macScrollPtr->macFlags & FLUSH_TOP) { - macScrollPtr->macFlags &= ~FLUSH_TOP; - if (! scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - - if (windowRef->portRect.right == (**macScrollPtr->sbHandle).contrlRect.right) { - flushRight = true; - if (macScrollPtr->macFlags & AUTO_ADJUST) { - (**macScrollPtr->sbHandle).contrlRect.right++; - } - if (!(macScrollPtr->macFlags & FLUSH_RIGHT)) { - macScrollPtr->macFlags |= FLUSH_RIGHT; - if (scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - } else if (macScrollPtr->macFlags & FLUSH_RIGHT) { - macScrollPtr->macFlags &= ~FLUSH_RIGHT; - if (scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - - if (windowRef->portRect.bottom == (**macScrollPtr->sbHandle).contrlRect.bottom) { - flushBottom = true; - if (macScrollPtr->macFlags & AUTO_ADJUST) { - (**macScrollPtr->sbHandle).contrlRect.bottom++; - } - if (!(macScrollPtr->macFlags & FLUSH_BOTTOM)) { - macScrollPtr->macFlags |= FLUSH_BOTTOM; - if (! scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - } else if (macScrollPtr->macFlags & FLUSH_BOTTOM) { - macScrollPtr->macFlags &= ~FLUSH_BOTTOM; - if (! scrollPtr->vertical) { - TkpComputeScrollbarGeometry(scrollPtr); - } - } - - /* - * If the scrollbar is flush against the bottom right hand coner then - * it may need to draw the grow region for the window so we let the - * wm code know about this scrollbar. We don't actually draw the grow - * region, however, unless we are currently resizable. - */ - macScrollPtr->macFlags &= ~DRAW_GROW; - if (flushBottom && flushRight) { - TkMacSetScrollbarGrow((TkWindow *) tkwin, true); - if (TkMacResizable(macDraw->toplevel->winPtr)) { - if (scrollPtr->vertical) { - (**macScrollPtr->sbHandle).contrlRect.bottom -= 14; - } else { - (**macScrollPtr->sbHandle).contrlRect.right -= 14; - } - macScrollPtr->macFlags |= DRAW_GROW; - } - } else { - TkMacSetScrollbarGrow((TkWindow *) tkwin, false); - } - - /* - * Given the Tk parameters for the fractions of the start and - * end of the thumb, the following calculation determines the - * location for the fixed sized Macintosh thumb. - */ - middle = scrollPtr->firstFraction / (scrollPtr->firstFraction + - (1.0 - scrollPtr->lastFraction)); - - (**macScrollPtr->sbHandle).contrlValue = (short) (middle * 1000); - if ((**macScrollPtr->sbHandle).contrlHilite == 0 || - (**macScrollPtr->sbHandle).contrlHilite == 255) { - if (scrollPtr->firstFraction == 0.0 && - scrollPtr->lastFraction == 1.0) { - (**macScrollPtr->sbHandle).contrlHilite = 255; - } else { - (**macScrollPtr->sbHandle).contrlHilite = 0; - } - } - if ((**macScrollPtr->sbHandle).contrlVis != 255) { - (**macScrollPtr->sbHandle).contrlVis = 255; - } -} |