Import Tk 8.6.6 (as of svn r86089)
This commit is contained in:
Zachary Ware
499
macosx/tkMacOSXScale.c
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499
macosx/tkMacOSXScale.c
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@@ -0,0 +1,499 @@
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/*
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* tkMacOSXScale.c --
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*
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* This file implements the Macintosh specific portion of the
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* scale widget.
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*
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* Copyright (c) 1996 by Sun Microsystems, Inc.
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* Copyright (c) 1998-2000 by Scriptics Corporation.
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* Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net>
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* Copyright 2008-2009, Apple Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*/
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#include "tkMacOSXPrivate.h"
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#include "tkScale.h"
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#ifdef MAC_OSX_TK_TODO
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/*
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#ifdef TK_MAC_DEBUG
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#define TK_MAC_DEBUG_SCALE
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#endif
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*/
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/*
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* Defines used in this file.
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*/
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#define slider 1110
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#define inSlider 1
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#define inInc 2
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#define inDecr 3
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/*
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* Declaration of Macintosh specific scale structure.
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*/
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typedef struct MacScale {
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TkScale info; /* Generic scale info. */
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int flags; /* Flags. */
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ControlRef scaleHandle; /* Handle to the Scale control struct. */
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} MacScale;
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/*
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* Globals uses locally in this file.
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*/
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static ControlActionUPP scaleActionProc = NULL; /* Pointer to func. */
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/*
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* Forward declarations for procedures defined later in this file:
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*/
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static void MacScaleEventProc(ClientData clientData, XEvent *eventPtr);
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static pascal void ScaleActionProc(ControlRef theControl,
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ControlPartCode partCode);
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/*
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*----------------------------------------------------------------------
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*
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* TkpCreateScale --
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*
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* Allocate a new TkScale structure.
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*
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* Results:
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* Returns a newly allocated TkScale structure.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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TkScale *
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TkpCreateScale(
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Tk_Window tkwin)
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{
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MacScale *macScalePtr = ckalloc(sizeof(MacScale));
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macScalePtr->scaleHandle = NULL;
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if (scaleActionProc == NULL) {
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scaleActionProc = NewControlActionUPP(ScaleActionProc);
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}
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Tk_CreateEventHandler(tkwin, ButtonPressMask,
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MacScaleEventProc, (ClientData) macScalePtr);
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return (TkScale *) macScalePtr;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpDestroyScale --
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*
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* Free Macintosh specific resources.
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*
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* Results:
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* None
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*
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* Side effects:
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* The slider control is destroyed.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkpDestroyScale(
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TkScale *scalePtr)
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{
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MacScale *macScalePtr = (MacScale *) scalePtr;
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/*
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* Free Macintosh control.
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*/
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if (macScalePtr->scaleHandle != NULL) {
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DisposeControl(macScalePtr->scaleHandle);
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpDisplayScale --
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*
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* This procedure is invoked as an idle handler to redisplay
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* the contents of a scale widget.
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*
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* Results:
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* None.
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*
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* Side effects:
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* The scale gets redisplayed.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkpDisplayScale(
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ClientData clientData) /* Widget record for scale. */
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{
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TkScale *scalePtr = (TkScale *) clientData;
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Tk_Window tkwin = scalePtr->tkwin;
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Tcl_Interp *interp = scalePtr->interp;
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int result;
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char string[TCL_DOUBLE_SPACE];
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MacScale *macScalePtr = (MacScale *) clientData;
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Rect r;
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WindowRef windowRef;
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CGrafPtr destPort, savePort;
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Boolean portChanged;
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MacDrawable *macDraw;
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SInt32 initialValue, minValue, maxValue;
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UInt16 numTicks;
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Tcl_DString buf;
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#ifdef TK_MAC_DEBUG_SCALE
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TkMacOSXDbgMsg("TkpDisplayScale");
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#endif
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scalePtr->flags &= ~REDRAW_PENDING;
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if ((scalePtr->tkwin == NULL) || !Tk_IsMapped(scalePtr->tkwin)) {
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goto done;
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}
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/*
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* Invoke the scale's command if needed.
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*/
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Tcl_Preserve((ClientData) scalePtr);
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if ((scalePtr->flags & INVOKE_COMMAND) && (scalePtr->command != NULL)) {
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Tcl_Preserve((ClientData) interp);
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sprintf(string, scalePtr->format, scalePtr->value);
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Tcl_DStringInit(&buf);
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Tcl_DStringAppend(&buf, scalePtr->command, -1);
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Tcl_DStringAppend(&buf, " ", -1);
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Tcl_DStringAppend(&buf, string, -1);
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result = Tcl_EvalEx(interp, Tcl_DStringValue(&buf), -1, 0);
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Tcl_DStringFree(&buf);
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if (result != TCL_OK) {
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Tcl_AddErrorInfo(interp, "\n (command executed by scale)");
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Tcl_BackgroundException(interp, result);
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}
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Tcl_Release((ClientData) interp);
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}
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scalePtr->flags &= ~INVOKE_COMMAND;
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if (scalePtr->flags & SCALE_DELETED) {
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Tcl_Release((ClientData) scalePtr);
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return;
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}
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Tcl_Release((ClientData) scalePtr);
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/*
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* Now handle the part of redisplay that is the same for
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* horizontal and vertical scales: border and traversal
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* highlight.
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*/
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if (scalePtr->highlightWidth != 0) {
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GC gc = Tk_GCForColor(scalePtr->highlightColorPtr, Tk_WindowId(tkwin));
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Tk_DrawFocusHighlight(tkwin, gc, scalePtr->highlightWidth,
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Tk_WindowId(tkwin));
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}
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Tk_Draw3DRectangle(tkwin, Tk_WindowId(tkwin), scalePtr->bgBorder,
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scalePtr->highlightWidth, scalePtr->highlightWidth,
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Tk_Width(tkwin) - 2*scalePtr->highlightWidth,
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Tk_Height(tkwin) - 2*scalePtr->highlightWidth,
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scalePtr->borderWidth, scalePtr->relief);
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/*
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* Set up port for drawing Macintosh control.
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*/
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macDraw = (MacDrawable *) Tk_WindowId(tkwin);
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destPort = TkMacOSXGetDrawablePort(Tk_WindowId(tkwin));
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windowRef = TkMacOSXDrawableWindow(Tk_WindowId(tkwin));
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portChanged = QDSwapPort(destPort, &savePort);
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TkMacOSXSetUpClippingRgn(Tk_WindowId(tkwin));
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/*
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* Create Macintosh control.
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*/
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#define MAC_OSX_SCROLL_WIDTH 10
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if (scalePtr->orient == ORIENT_HORIZONTAL) {
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int offset = (Tk_Height(tkwin) - MAC_OSX_SCROLL_WIDTH)/2;
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if (offset < 0) {
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offset = 0;
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}
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r.left = macDraw->xOff + scalePtr->inset;
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r.top = macDraw->yOff + offset;
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r.right = macDraw->xOff+Tk_Width(tkwin) - scalePtr->inset;
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r.bottom = macDraw->yOff + offset + MAC_OSX_SCROLL_WIDTH/2;
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} else {
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int offset = (Tk_Width(tkwin) - MAC_OSX_SCROLL_WIDTH)/2;
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if (offset < 0) {
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offset = 0;
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}
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r.left = macDraw->xOff + offset;
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r.top = macDraw->yOff + scalePtr->inset;
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r.right = macDraw->xOff + offset + MAC_OSX_SCROLL_WIDTH/2;
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r.bottom = macDraw->yOff+Tk_Height(tkwin) - scalePtr->inset;
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}
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if (macScalePtr->scaleHandle == NULL) {
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#ifdef TK_MAC_DEBUG_SCALE
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TkMacOSXDbgMsg("Initialising scale");
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#endif
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initialValue = scalePtr->value;
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if (scalePtr->orient == ORIENT_HORIZONTAL) {
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minValue = scalePtr->fromValue;
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maxValue = scalePtr->toValue;
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} else {
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minValue = scalePtr->fromValue;
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maxValue = scalePtr->toValue;
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}
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if (scalePtr->tickInterval == 0) {
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numTicks = 0;
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} else {
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numTicks = (maxValue - minValue)/scalePtr->tickInterval;
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}
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CreateSliderControl(windowRef, &r, initialValue, minValue, maxValue,
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kControlSliderPointsDownOrRight, numTicks, 1, scaleActionProc,
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&(macScalePtr->scaleHandle));
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SetControlReference(macScalePtr->scaleHandle, (UInt32) scalePtr);
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if (IsWindowActive(windowRef)) {
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macScalePtr->flags |= ACTIVE;
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}
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} else {
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SetControlBounds(macScalePtr->scaleHandle, &r);
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SetControl32BitValue(macScalePtr->scaleHandle, scalePtr->value);
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SetControl32BitMinimum(macScalePtr->scaleHandle, scalePtr->fromValue);
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SetControl32BitMaximum(macScalePtr->scaleHandle, scalePtr->toValue);
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}
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/*
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* Finally draw the control.
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*/
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SetControlVisibility(macScalePtr->scaleHandle,true,true);
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HiliteControl(macScalePtr->scaleHandle,0);
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Draw1Control(macScalePtr->scaleHandle);
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if (portChanged) {
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QDSwapPort(savePort, NULL);
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}
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done:
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scalePtr->flags &= ~REDRAW_ALL;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkpScaleElement --
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*
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* Determine which part of a scale widget lies under a given
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* point.
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*
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* Results:
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* The return value is either TROUGH1, SLIDER, TROUGH2, or
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* OTHER, depending on which of the scale's active elements
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* (if any) is under the point at (x,y).
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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TkpScaleElement(
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TkScale *scalePtr, /* Widget record for scale. */
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int x, int y) /* Coordinates within scalePtr's window. */
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{
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MacScale *macScalePtr = (MacScale *) scalePtr;
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ControlPartCode part;
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Point where;
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Rect bounds;
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CGrafPtr destPort, savePort;
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Boolean portChanged;
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#ifdef TK_MAC_DEBUG_SCALE
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TkMacOSXDbgMsg("TkpScaleElement");
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#endif
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destPort = TkMacOSXGetDrawablePort(Tk_WindowId(scalePtr->tkwin));
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portChanged = QDSwapPort(destPort, &savePort);
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/*
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* All of the calculations in this procedure mirror those in
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* DisplayScrollbar. Be sure to keep the two consistent.
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*/
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TkMacOSXWinBounds((TkWindow *) scalePtr->tkwin, &bounds);
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where.h = x + bounds.left;
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where.v = y + bounds.top;
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part = TestControl(macScalePtr->scaleHandle, where);
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if (portChanged) {
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QDSwapPort(savePort, NULL);
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}
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#ifdef TK_MAC_DEBUG_SCALE
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fprintf (stderr,"ScalePart %d, pos ( %d %d )\n", part, where.h, where.v );
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#endif
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switch (part) {
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case inSlider:
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return SLIDER;
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case inInc:
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if (scalePtr->orient == ORIENT_VERTICAL) {
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return TROUGH1;
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} else {
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return TROUGH2;
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}
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case inDecr:
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if (scalePtr->orient == ORIENT_VERTICAL) {
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return TROUGH2;
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} else {
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return TROUGH1;
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}
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default:
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return OTHER;
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}
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}
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/*
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*--------------------------------------------------------------
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*
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* MacScaleEventProc --
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*
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* This procedure is invoked by the Tk dispatcher for
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* ButtonPress events on scales.
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*
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* Results:
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* None.
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*
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* Side effects:
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* When the window gets deleted, internal structures get
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* cleaned up. When it gets exposed, it is redisplayed.
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*
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*--------------------------------------------------------------
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*/
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static void
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MacScaleEventProc(
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ClientData clientData, /* Information about window. */
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XEvent *eventPtr) /* Information about event. */
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{
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MacScale *macScalePtr = (MacScale *) clientData;
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Point where;
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Rect bounds;
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int part;
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CGrafPtr destPort, savePort;
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Boolean portChanged;
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#ifdef TK_MAC_DEBUG_SCALE
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fprintf(stderr,"MacScaleEventProc\n" );
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#endif
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/*
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* To call Macintosh control routines we must have the port
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* set to the window containing the control. We will then test
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* which part of the control was hit and act accordingly.
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*/
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destPort = TkMacOSXGetDrawablePort(Tk_WindowId(macScalePtr->info.tkwin));
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portChanged = QDSwapPort(destPort, &savePort);
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TkMacOSXSetUpClippingRgn(Tk_WindowId(macScalePtr->info.tkwin));
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TkMacOSXWinBounds((TkWindow *) macScalePtr->info.tkwin, &bounds);
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where.h = eventPtr->xbutton.x + bounds.left;
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where.v = eventPtr->xbutton.y + bounds.top;
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#ifdef TK_MAC_DEBUG_SCALE
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TkMacOSXDbgMsg("calling TestControl");
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#endif
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part = TestControl(macScalePtr->scaleHandle, where);
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if (part == 0) {
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return;
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}
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TkMacOSXTrackingLoop(1);
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part = HandleControlClick(macScalePtr->scaleHandle, where,
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TkMacOSXModifierState(), scaleActionProc);
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TkMacOSXTrackingLoop(0);
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/*
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* Update the value for the widget.
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*/
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macScalePtr->info.value = GetControlValue(macScalePtr->scaleHandle);
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/* TkScaleSetValue(&macScalePtr->info, macScalePtr->info.value, 1, 0); */
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/*
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* The HandleControlClick call will "eat" the ButtonUp event. We now
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* generate a ButtonUp event so Tk will unset implicit grabs etc.
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*/
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TkGenerateButtonEventForXPointer(Tk_WindowId(macScalePtr->info.tkwin));
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if (portChanged) {
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QDSwapPort(savePort, NULL);
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}
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}
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/*
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*--------------------------------------------------------------
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*
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* ScaleActionProc --
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*
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* Callback procedure used by the Macintosh toolbox call
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* HandleControlClick. This call will update the display
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* while the scrollbar is being manipulated by the user.
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*
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* Results:
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* None.
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*
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* Side effects:
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* May change the display.
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*
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*--------------------------------------------------------------
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*/
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static pascal void
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ScaleActionProc(
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ControlRef theControl, /* Handle to scrollbat control */
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ControlPartCode partCode) /* Part of scrollbar that was "hit" */
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{
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int value;
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TkScale *scalePtr = (TkScale *) GetControlReference(theControl);
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#ifdef TK_MAC_DEBUG_SCALE
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TkMacOSXDbgMsg("ScaleActionProc");
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#endif
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value = GetControlValue(theControl);
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TkScaleSetValue(scalePtr, value, 1, 1);
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Tcl_Preserve((ClientData) scalePtr);
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TkMacOSXRunTclEventLoop();
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Tcl_Release((ClientData) scalePtr);
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}
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#endif
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/*
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* Local Variables:
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* mode: objc
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* c-basic-offset: 4
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* fill-column: 79
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* coding: utf-8
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* End:
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*/
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Reference in New Issue
Block a user