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- /* $XConsortium: Paned.c,v 1.23 91/07/21 18:56:15 gildea Exp $ */
-
- /***********************************************************
- Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts,
- and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Digital or MIT not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
-
- ******************************************************************/
-
- /*
- * Paned.c - Paned Composite Widget.
- *
- * Updated and significantly modified from the Athena VPaned Widget.
- *
- * Date: March 1, 1989
- *
- * By: Chris D. Peterson
- * MIT X Consortium
- * kit@expo.lcs.mit.edu
- */
-
- #include <X11/IntrinsicP.h>
- #include <X11/cursorfont.h>
- #include <X11/StringDefs.h>
-
- #include <X11/Xmu/Misc.h>
- #include <X11/Xmu/Converters.h>
-
- #include <X11/Xaw/XawInit.h>
- #include <X11/Xaw/Grip.h>
- #include <X11/Xaw/PanedP.h>
-
- #include <ctype.h>
-
- typedef enum {UpLeftPane = 'U', LowRightPane = 'L',
- ThisBorderOnly = 'T', AnyPane = 'A' } Direction;
-
- #define NO_INDEX -100
- #define IS_GRIP NULL
-
- #define PaneInfo(w) ((Pane)(w)->core.constraints)
- #define HasGrip(w) (PaneInfo(w)->grip != NULL)
- #define IsPane(w) ((w)->core.widget_class != gripWidgetClass)
- #define PaneIndex(w) (PaneInfo(w)->position)
- #define IsVert(w) ( (w)->paned.orientation == XtorientVertical )
-
- #define ForAllPanes(pw, childP) \
- for ( (childP) = (pw)->composite.children ; \
- (childP) < (pw)->composite.children + (pw)->paned.num_panes ; \
- (childP)++ )
-
- #define ForAllChildren(pw, childP) \
- for ( (childP) = (pw)->composite.children ; \
- (childP) < (pw)->composite.children + (pw)->composite.num_children ; \
- (childP)++ )
-
- /*****************************************************************************
- *
- * Full instance record declaration
- *
- ****************************************************************************/
-
- static char defGripTranslations[] =
- "<Btn1Down>: GripAction(Start, UpLeftPane) \n\
- <Btn2Down>: GripAction(Start, ThisBorderOnly) \n\
- <Btn3Down>: GripAction(Start, LowRightPane) \n\
- <Btn1Motion>: GripAction(Move, UpLeft) \n\
- <Btn2Motion>: GripAction(Move, ThisBorder) \n\
- <Btn3Motion>: GripAction(Move, LowRight) \n\
- Any<BtnUp>: GripAction(Commit)";
-
- #define offset(field) XtOffsetOf(PanedRec, paned.field)
-
- static XtResource resources[] = {
- {XtNinternalBorderColor, XtCBorderColor, XtRPixel, sizeof(Pixel),
- offset(internal_bp), XtRString,
- (XtPointer) XtDefaultForeground},
- {XtNinternalBorderWidth, XtCBorderWidth, XtRDimension, sizeof(Dimension),
- offset(internal_bw), XtRImmediate, (XtPointer) 1},
- {XtNgripIndent, XtCGripIndent, XtRPosition, sizeof(Position),
- offset(grip_indent), XtRImmediate, (XtPointer) 10},
- {XtNrefigureMode, XtCBoolean, XtRBoolean, sizeof(Boolean),
- offset(refiguremode), XtRImmediate, (XtPointer) TRUE},
- {XtNgripTranslations, XtCTranslations, XtRTranslationTable,
- sizeof(XtTranslations),
- offset(grip_translations), XtRString, (XtPointer)defGripTranslations},
- {XtNorientation, XtCOrientation, XtROrientation, sizeof(XtOrientation),
- offset(orientation), XtRImmediate, (XtPointer) XtorientVertical},
-
- /* Cursors - both horiz and vertical have to work. */
-
- {XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(cursor), XtRImmediate, None},
- {XtNgripCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(grip_cursor), XtRImmediate, None},
- {XtNverticalGripCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(v_grip_cursor), XtRString, "sb_v_double_arrow"},
- {XtNhorizontalGripCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(h_grip_cursor), XtRString, "sb_h_double_arrow"},
-
- {XtNbetweenCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(adjust_this_cursor), XtRString, None},
- {XtNverticalBetweenCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(v_adjust_this_cursor), XtRString, "sb_left_arrow"},
- {XtNhorizontalBetweenCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(h_adjust_this_cursor), XtRString, "sb_up_arrow"},
-
- {XtNupperCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(adjust_upper_cursor), XtRString, "sb_up_arrow"},
- {XtNlowerCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(adjust_lower_cursor), XtRString, "sb_down_arrow"},
- {XtNleftCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(adjust_left_cursor), XtRString, "sb_left_arrow"},
- {XtNrightCursor, XtCCursor, XtRCursor, sizeof(Cursor),
- offset(adjust_right_cursor), XtRString, "sb_right_arrow"},
- };
-
- #undef offset
-
- #define offset(field) XtOffsetOf(PanedConstraintsRec, paned.field)
-
- static XtResource subresources[] = {
- {XtNallowResize, XtCBoolean, XtRBoolean, sizeof(Boolean),
- offset(allow_resize), XtRImmediate, (XtPointer) FALSE},
- {XtNposition, XtCPosition, XtRInt, sizeof(int),
- offset(position), XtRImmediate, (XtPointer) 0},
- {XtNmin, XtCMin, XtRDimension, sizeof(Dimension),
- offset(min), XtRImmediate, (XtPointer) PANED_GRIP_SIZE},
- {XtNmax, XtCMax, XtRDimension, sizeof(Dimension),
- offset(max), XtRImmediate, (XtPointer) ~0},
- {XtNpreferredPaneSize, XtCPreferredPaneSize, XtRDimension,
- sizeof(Dimension), offset(preferred_size),
- XtRImmediate, (XtPointer) PANED_ASK_CHILD},
- {XtNresizeToPreferred, XtCBoolean, XtRBoolean, sizeof(Boolean),
- offset(resize_to_pref), XtRImmediate, (XtPointer) FALSE},
- {XtNskipAdjust, XtCBoolean, XtRBoolean, sizeof(Boolean),
- offset(skip_adjust), XtRImmediate, (XtPointer) FALSE},
- {XtNshowGrip, XtCShowGrip, XtRBoolean, sizeof(Boolean),
- offset(show_grip), XtRImmediate, (XtPointer) TRUE},
- };
-
- #undef offset
-
- static void ClassInitialize(), Initialize();
- static void Realize(), Resize();
- static void Redisplay();
- static void GetGCs(), ReleaseGCs();
- static void RefigureLocationsAndCommit();
- static Boolean SetValues();
- static XtGeometryResult GeometryManager();
- static void ChangeManaged();
- static void InsertChild();
- static void DeleteChild();
- static Boolean PaneSetValues();
- static Dimension PaneSize(), GetRequestInfo();
- static Boolean SatisfiesRule1(), SatisfiesRule2(), SatisfiesRule3();
-
- static void PushPaneStack();
- static void GetPaneStack();
- static Boolean PopPaneStack();
- static void ClearPaneStack();
-
- #define SuperClass ((ConstraintWidgetClass)&constraintClassRec)
-
- PanedClassRec panedClassRec = {
- {
- /* core class fields */
- /* superclass */ (WidgetClass) SuperClass,
- /* class name */ "Paned",
- /* size */ sizeof(PanedRec),
- /* class_initialize */ ClassInitialize,
- /* class_part init */ NULL,
- /* class_inited */ FALSE,
- /* initialize */ Initialize,
- /* initialize_hook */ NULL,
- /* realize */ Realize,
- /* actions */ NULL,
- /* num_actions */ 0,
- /* resources */ resources,
- /* resource_count */ XtNumber(resources),
- /* xrm_class */ NULLQUARK,
- /* compress_motion */ TRUE,
- /* compress_exposure */ TRUE,
- /* compress_enterleave*/ TRUE,
- /* visible_interest */ FALSE,
- /* destroy */ ReleaseGCs,
- /* resize */ Resize,
- /* expose */ Redisplay,
- /* set_values */ SetValues,
- /* set_values_hook */ NULL,
- /* set_values_almost */ XtInheritSetValuesAlmost,
- /* get_values_hook */ NULL,
- /* accept_focus */ NULL,
- /* version */ XtVersion,
- /* callback_private */ NULL,
- /* tm_table */ NULL,
- /* query_geometry */ XtInheritQueryGeometry,
- /* display_accelerator*/ XtInheritDisplayAccelerator,
- /* extension */ NULL
- }, {
- /* composite class fields */
- /* geometry_manager */ GeometryManager,
- /* change_managed */ ChangeManaged,
- /* insert_child */ InsertChild,
- /* delete_child */ DeleteChild,
- /* extension */ NULL
- }, {
- /* constraint class fields */
- /* subresources */ subresources,
- /* subresource_count */ XtNumber(subresources),
- /* constraint_size */ sizeof(PanedConstraintsRec),
- /* initialize */ NULL,
- /* destroy */ NULL,
- /* set_values */ PaneSetValues,
- /* extension */ NULL
- }
- };
-
- WidgetClass panedWidgetClass = (WidgetClass) &panedClassRec;
-
- /* For compatibility. */
- WidgetClass vPanedWidgetClass = (WidgetClass) &panedClassRec;
-
- /***********************************************************
- *
- * Private Functions.
- *
- ************************************************************/
-
- /* Function Name: AdjustPanedSize
- * Description: Adjusts the size of the pane.
- * Arguments: pw - the paned widget to adjust.
- * off_size - the new off_size to use.
- * result_ret - result of query ** RETURNED **
- * on_size_ret - the new on_size ** RETURNED **
- * off_size_ret - the new off_size ** RETURNED **
- * Returns: the amount of change in size.
- */
-
- static void
- AdjustPanedSize(pw, off_size, result_ret, on_size_ret, off_size_ret)
- PanedWidget pw;
- Dimension off_size;
- XtGeometryResult * result_ret;
- Dimension * on_size_ret, * off_size_ret;
- {
- Dimension old_size = PaneSize( (Widget) pw, IsVert(pw));
- Dimension newsize = 0;
- Widget * childP;
- XtWidgetGeometry request, reply;
- request.request_mode = CWWidth | CWHeight;
-
- ForAllPanes(pw, childP) {
- int size = Max(PaneInfo(*childP)->size, (int)PaneInfo(*childP)->min);
- AssignMin(size, (int) PaneInfo(*childP)->max);
- newsize += size + pw->paned.internal_bw;
- }
- newsize -= pw->paned.internal_bw;
-
- if (newsize < 1) newsize = 1;
-
- if ( IsVert(pw) ) {
- request.width = off_size;
- request.height = newsize;
- }
- else {
- request.width = newsize;
- request.height = off_size;
- }
-
- if (result_ret != NULL) {
- request.request_mode |= XtCWQueryOnly;
-
- *result_ret = XtMakeGeometryRequest( (Widget) pw, &request, &reply );
-
- if ( (newsize == old_size) || (*result_ret == XtGeometryNo) ) {
- *on_size_ret = old_size;
- *off_size_ret = off_size;
- return;
- }
- if (*result_ret != XtGeometryAlmost) {
- *on_size_ret = GetRequestInfo( &request, IsVert(pw) );
- *off_size_ret = GetRequestInfo( &request, !IsVert(pw) );
- return;
- }
- *on_size_ret = GetRequestInfo( &reply, IsVert(pw) );
- *off_size_ret = GetRequestInfo( &reply, !IsVert(pw) );
- return;
- }
-
- if (newsize == old_size) return;
-
- if (XtMakeGeometryRequest( (Widget) pw,
- &request, &reply) == XtGeometryAlmost)
- XtMakeGeometryRequest( (Widget) pw, &reply, &request);
- }
-
- /* Function Name: PaneSize
- * Description: returns the width or height of the pane depending
- * upon the orientation we are using.
- * Arguments: w - and widget.
- * vertical - TRUE if this is vertically oriented pane.
- * Returns: the size requested
- *
- * vertical - return height
- * !vertical - return width
- */
-
- static Dimension
- PaneSize(w, vertical)
- Widget w;
- Boolean vertical;
- {
- if (vertical) return (w->core.height);
- return (w->core.width);
- }
-
- /* Function Name: GetRequestInfo
- * Description: returns request information.
- * Arguments: geo_struct - a geometry struct to get information out of.
- * vert - TRUE if this is a vertical paned widget.
- * Returns: the request information.
- */
-
- static Dimension
- GetRequestInfo(geo_struct, vert)
- XtWidgetGeometry * geo_struct;
- Boolean vert;
- {
- if ( vert ) return ( (Dimension) geo_struct->height);
- return ( (Dimension) geo_struct->width);
- }
-
- /* Function Name: ChoosePaneToResize.
- * Description: This function chooses a pane to resize.
- * They are chosen using the following rules:
- *
- * 1) size < max && size > min
- * 2) skip adjust == FALSE
- * 3) widget not its prefered height &&
- * this change will bring it closer &&
- * The user has not resized this pane.
- *
- * If no widgets are found that fits all the rules then
- * rule #3 is broken.
- * If there are still no widgets found than
- * rule #2 is broken.
- * Rule #1 is never broken.
- * If no widgets are found then NULL is returned.
- *
- * Arguments: pw - the paned widget.
- * paneindex - the index of the current pane.
- * dir - direction to search first.
- * shrink - TRUE if we need to shrink a pane, FALSE otherwise.
- * Returns: pane to resize or NULL.
- */
-
- static Pane
- ChoosePaneToResize(pw, paneindex, dir, shrink)
- PanedWidget pw;
- int paneindex;
- Direction dir;
- Boolean shrink;
- {
- Widget *childP;
- int rules = 3;
- Direction _dir = dir;
- int _index = paneindex;
-
- if ( (paneindex == NO_INDEX) || (dir == AnyPane) ) { /* Use defaults. */
- _dir = LowRightPane; /* Go up. - really. */
- _index = pw->paned.num_panes - 1; /* Start the last pane, and work
- backwards. */
- }
- childP = pw->composite.children + _index;
- while(TRUE) {
- register Pane pane = PaneInfo(*childP);
-
- if ( (rules < 3 || SatisfiesRule3(pane, shrink)) &&
- (rules < 2 || SatisfiesRule2(pane)) &&
- (SatisfiesRule1(pane, shrink)) &&
- ((paneindex != PaneIndex(*childP)) || (dir == AnyPane)) )
- return(pane);
-
- /*
- * This is counter-intuitive, but if we are resizing the pane
- * above the grip we want to choose a pane below the grip to lose,
- * and visa-versa.
- */
-
- if (_dir == LowRightPane) --childP; else ++childP;
-
- /*
- * If we have come to and edge then reduce the rule set, and try again.
- * If we are reduced the rules to none, then return NULL.
- */
-
- if ( (childP - pw->composite.children < 0) ||
- (childP - pw->composite.children >= pw->paned.num_panes) ) {
- if (--rules < 1) /* less strict rules. */
- return(NULL);
- childP = pw->composite.children + _index;
- }
- }
- }
-
- /* Function Name: StatisfiesRule1
- * Description: check for to see if this pane satisfies rule 1.
- * Arguments: pane - the pane to check.
- * shrink -TRUE if we want to shrink this pane, FALSE otherwise
- * Returns: TRUE if the rule is satisfied.
- */
-
- static Boolean
- SatisfiesRule1(pane, shrink)
- Pane pane;
- Boolean shrink;
- {
- return( (shrink && (pane->size != pane->min)) ||
- (!shrink && (pane->size != pane->max)) );
- }
-
- /* Function Name: StatisfiesRule2
- * Description: check for to see if this pane satisfies rule 2.
- * Arguments: pane - the pane to check.
- * Returns: TRUE if the rule is satisfied.
- */
-
- static Boolean
- SatisfiesRule2(pane)
- Pane pane;
- {
- return(!pane->skip_adjust || pane->paned_adjusted_me);
- }
-
- /* Function Name: StatisfiesRule3
- * Description: check for to see if this pane satisfies rule 3.
- * Arguments: pane - the pane to check.
- * shrink -TRUE if we want to shrink this pane, FALSE otherwise
- * Returns: TRUE if the rule is satisfied.
- */
-
- static Boolean
- SatisfiesRule3(pane, shrink)
- Pane pane;
- Boolean shrink;
- {
- return ( pane->paned_adjusted_me &&
- ( (shrink && ((int)pane->wp_size <= pane->size)) ||
- (!shrink && ((int)pane->wp_size >= pane->size))) );
- }
-
- /* Function Name: LoopAndRefigureChildren.
- * Description: if we are resizing either the UpleftPane or LowRight Pane
- * loop through all the children to see if any will allow us
- * to resize them.
- * Arguments: pw - the paned widget.
- * paneindex - the number of the pane border we are moving.
- * dir - the pane to move (either UpLeftPane or LowRightPane).
- * sizeused - current amount of space used.
- * THIS VALUE IS USED AND RETURNED.
- * Returns: none.
- */
-
- static void
- LoopAndRefigureChildren(pw, paneindex, dir, sizeused)
- PanedWidget pw;
- int paneindex, *sizeused;
- Direction dir;
- {
- int pane_size = (int) PaneSize( (Widget) pw, IsVert(pw));
- Boolean shrink = (*sizeused > pane_size);
-
- if (dir == LowRightPane) paneindex++;
-
- while (*sizeused != pane_size) { /* While all panes do not fit properly. */
- /*
- * Choose a pane to resize.
- * First look on the Pane Stack, and then go hunting for another one.
- * If we fail to find a pane to resize then give up.
- */
- Pane pane;
- int start_size;
- Dimension old;
- Boolean rule3_ok = FALSE, from_stack = TRUE;
-
- GetPaneStack(pw, shrink, &pane, &start_size);
- if (pane == NULL) {
- pane = ChoosePaneToResize(pw, paneindex, dir, shrink);
- if (pane == NULL)
- return; /* no one to resize, give up. */
-
- rule3_ok = SatisfiesRule3(pane, shrink);
- from_stack = FALSE;
- PushPaneStack(pw, pane);
- }
-
-
- /*
- * Try to resize this pane so that all panes will fit, take min and max
- * into account.
- */
- old = pane->size;
- pane->size += pane_size - *sizeused;
-
- if (from_stack) {
- if (shrink) {
- AssignMax(pane->size, start_size);
- } /* don't remove these braces. */
- else
- AssignMin(pane->size, start_size);
-
- if (pane->size == start_size) (void) PopPaneStack(pw);
- }
- else if (rule3_ok) {
- if (shrink) {
- AssignMax(pane->size, (int) pane->wp_size);
- } /* don't remove these braces. */
- else
- AssignMin(pane->size, (int) pane->wp_size);
- }
-
- pane->paned_adjusted_me = (pane->size != pane->wp_size);
- AssignMax(pane->size, (int) pane->min);
- AssignMin(pane->size, (int) pane->max);
- *sizeused += (pane->size - old);
- }
- }
-
- /* Function Name: RefigureLocations
- * Description: refigures all locations of children.
- * Arguments: pw - the paned widget.
- * paneindex - child to start refiguring at.
- * dir - direction to move from child.
- * Returns: none.
- *
- * There are special arguments to paneindex and dir, they are:
- * paneindex - NO_INDEX.
- * dir - AnyPane.
- *
- * If either of these is true then all panes may be resized and
- * the choosing of panes procedes in reverse order starting with the
- * last child.
- */
-
- static void
- RefigureLocations(pw, paneindex, dir)
- PanedWidget pw;
- int paneindex;
- Direction dir;
- {
- register Widget *childP;
- int pane_size = (int) PaneSize( (Widget) pw, IsVert(pw) );
- int sizeused = 0;
- Position loc = 0;
-
- if (pw->paned.num_panes == 0 || !pw->paned.refiguremode) return;
-
- /*
- * Get an initial estimate of the size we will use.
- */
-
- ForAllPanes(pw, childP) {
- register Pane pane = PaneInfo(*childP);
- AssignMax(pane->size, (int) pane->min);
- AssignMin(pane->size, (int) pane->max);
- sizeused += (int) pane->size + (int) pw->paned.internal_bw;
- }
- sizeused -= (int) pw->paned.internal_bw;
-
- if ( (dir != ThisBorderOnly) && (sizeused != pane_size) )
- LoopAndRefigureChildren(pw, paneindex, dir, &sizeused);
-
- /*
- * If we still are not the right size, then tell the pane that
- * wanted to resize that it can't.
- */
-
-
- if ( (paneindex != NO_INDEX) && (dir != AnyPane) ) {
- Pane pane = PaneInfo(*(pw->composite.children + paneindex));
- Dimension old = pane->size;
-
- pane->size += pane_size - sizeused;
- AssignMax(pane->size, (int) pane->min);
- AssignMin(pane->size, (int) pane->max);
- sizeused += pane->size - old;
- }
-
- /*
- * It is possible that the panes will not fit inside the vpaned widget, but
- * we have tried out best.
- *
- * Assign each pane a location.
- */
-
- ForAllPanes(pw, childP) {
- PaneInfo(*childP)->delta = loc;
- loc += PaneInfo(*childP)->size + pw->paned.internal_bw;
- }
- }
-
- /* Function Name: CommitNewLocations
- * Description: Commits all of the previously figured locations.
- * Arguments: pw - the paned widget.
- * Returns: none.
- */
-
- static void
- CommitNewLocations(pw)
- PanedWidget pw;
- {
- register Widget *childP;
- XWindowChanges changes;
-
- changes.stack_mode = Above;
-
- ForAllPanes(pw, childP) {
- register Pane pane = PaneInfo(*childP);
- register Widget grip = pane->grip; /* may be NULL. */
-
- if (IsVert(pw)) {
- XtMoveWidget(*childP, (Position) 0, pane->delta);
- XtResizeWidget(*childP, pw->core.width, (Dimension) pane->size,
- (Dimension) 0);
-
- if (HasGrip(*childP)) { /* Move and Display the Grip */
- changes.x = pw->core.width - pw->paned.grip_indent -
- grip->core.width - grip->core.border_width*2;
- changes.y = (*childP)->core.y + (*childP)->core.height -
- grip->core.height/2 - grip->core.border_width +
- pw->paned.internal_bw/2;
- }
- }
- else {
- XtMoveWidget(*childP, pane->delta, (Position) 0);
- XtResizeWidget(*childP, (Dimension) pane->size, pw->core.height,
- (Dimension) 0);
-
-
- if (HasGrip(*childP)) { /* Move and Display the Grip */
- changes.x = (*childP)->core.x + (*childP)->core.width -
- grip->core.width/2 - grip->core.border_width +
- pw->paned.internal_bw/2;
- changes.y = pw->core.height - pw->paned.grip_indent -
- grip->core.height - grip->core.border_width*2;
- }
- }
-
- /*
- * This should match XtMoveWidget, except that we're also insuring the
- * grip is Raised in the same request.
- */
-
- if (HasGrip(*childP)) {
- grip->core.x = changes.x;
- grip->core.y = changes.y;
-
- if (XtIsRealized(pane->grip))
- XConfigureWindow( XtDisplay(pane->grip), XtWindow(pane->grip),
- CWX | CWY | CWStackMode, &changes );
- }
- }
- ClearPaneStack(pw);
- }
-
- /* Function Name: RefigureLocationsAndCommit
- * Description: Refigures all locations in a paned widget and
- * commits them immediately.
- * Arguments: pw - the paned widget.
- * Returns: none
- *
- * This function does nothing if any of the following are true.
- * o refiguremode is false.
- * o The widget is unrealized.
- * o There are no panes is the paned widget.
- *
- * NOTE: This is the resize Procedure for the Paned widget.
- */
-
- static void
- RefigureLocationsAndCommit(w)
- Widget w;
- {
- PanedWidget pw = (PanedWidget) w;
- if (pw->paned.refiguremode && XtIsRealized( (Widget) pw) &&
- pw->paned.num_panes > 0 ) {
- RefigureLocations(pw, NO_INDEX, AnyPane);
- CommitNewLocations(pw);
- }
- }
-
- /* Function Name: _DrawRect
- * Description: Draws a rectangle in the proper orientation.
- * Arguments: pw - the paned widget.
- * gc - gc to used for the draw.
- * on_olc, off_loc - location of upper left corner of rect.
- * on_size, off_size - size of rectangle.
- * Returns: none
- */
-
- static void
- _DrawRect(pw, gc, on_loc, off_loc, on_size, off_size)
- PanedWidget pw;
- GC gc;
- int on_loc, off_loc;
- unsigned int on_size, off_size;
- {
- if (IsVert(pw))
- XFillRectangle(XtDisplay(pw), XtWindow(pw), gc,
- off_loc, on_loc, off_size, on_size);
- else
- XFillRectangle(XtDisplay(pw), XtWindow(pw), gc,
- on_loc, off_loc, on_size, off_size);
- }
-
- /* Function Name: _DrawInternalBorders
- * Description: Draws the internal borders into the paned widget.
- * Arguments: pw - the paned widget.
- * gc - the GC to use to draw the borders.
- * Returns: none.
- */
-
- static void
- _DrawInternalBorders(pw, gc)
- PanedWidget pw;
- GC gc;
- {
- Widget *childP;
- int on_loc, off_loc;
- unsigned int on_size, off_size;
-
- /*
- * This is an optimization. Do not paint the internal borders if
- * they are the same color as the background.
- */
-
- if (pw->core.background_pixel == pw->paned.internal_bp)
- return;
-
- off_loc = 0;
- off_size = (unsigned int) PaneSize( (Widget) pw, !IsVert(pw) );
- on_size = (unsigned int) pw->paned.internal_bw;
-
- ForAllPanes(pw, childP) {
- on_loc = IsVert(pw) ? (*childP)->core.y : (*childP)->core.x;
- on_loc -= (int) on_size;
-
- _DrawRect( pw, gc, on_loc, off_loc, on_size, off_size);
- }
- }
-
- /*
- * This allows good reuse of code, as well as descriptive function names.
- */
-
- #define DrawInternalBorders(pw) _DrawInternalBorders((pw), (pw)->paned.normgc);
- #define EraseInternalBorders(pw) _DrawInternalBorders((pw), (pw)->paned.invgc);
-
- /* Function Name: _DrawTrackLines
- * Description: Draws the lines that animate the pane borders when the
- * grips are moved.
- * Arguments: pw - the Paned widget.
- * erase - if True then just erase track lines, else
- * draw them in.
- * Returns: none.
- */
-
- static void
- _DrawTrackLines(pw, erase)
- PanedWidget pw;
- Boolean erase;
- {
- Widget *childP;
- Pane pane;
- int on_loc, off_loc;
- unsigned int on_size, off_size;
-
- off_loc = 0;
- off_size = PaneSize( (Widget) pw, !IsVert(pw));
-
- ForAllPanes(pw, childP) {
- pane = PaneInfo(*childP);
- if ( erase || (pane->olddelta != pane->delta) ) {
- on_size = pw->paned.internal_bw;
- if (!erase) {
- on_loc = PaneInfo(*childP)->olddelta - (int) on_size;
-
- _DrawRect( pw, pw->paned.flipgc,
- on_loc, off_loc, on_size, off_size);
- }
-
- on_loc = PaneInfo(*childP)->delta - (int) on_size;
-
- _DrawRect(pw, pw->paned.flipgc,
- on_loc, off_loc, on_size, off_size);
-
- pane->olddelta = pane->delta;
- }
- }
- }
-
- /*
- * This allows good reuse of code, as well as descriptive function names.
- */
-
- #define DrawTrackLines(pw) _DrawTrackLines((pw), FALSE);
- #define EraseTrackLines(pw) _DrawTrackLines((pw), TRUE);
-
- /* Function Name: GetEventLocation
- * Description: Converts and event to an x and y location.
- * Arguments: pw - the paned widget.
- * event - a pointer to an event.
- * Returns: if this is a vertical pane then (y) else (x).
- */
-
- static int
- GetEventLocation(pw, event)
- PanedWidget pw;
- XEvent *event;
- {
- int x, y;
-
- switch (event->xany.type) {
- case ButtonPress:
- case ButtonRelease:
- x = event->xbutton.x_root;
- y = event->xbutton.y_root;
- break;
- case KeyPress:
- case KeyRelease:
- x = event->xkey.x_root;
- y = event->xkey.y_root;
- break;
- case MotionNotify:
- x = event->xmotion.x_root;
- y = event->xmotion.y_root;
- break;
- default:
- x = pw->paned.start_loc;
- y = pw->paned.start_loc;
- }
- if (IsVert(pw))
- return(y);
- return(x);
- }
-
- /* Function Name: StartGripAdjustment
- * Description: Starts the grip adjustment procedure.
- * Arguments: pw - the paned widget.
- * grip - the grip widget selected.
- * dir - the direction that we are to be moving.
- * Returns: none.
- */
-
- static void
- StartGripAdjustment(pw, grip, dir)
- PanedWidget pw;
- Widget grip;
- Direction dir;
- {
- Widget *childP;
- Cursor cursor;
-
- pw->paned.whichadd = pw->paned.whichsub = (Widget) NULL;
-
- if (dir == ThisBorderOnly || dir == UpLeftPane)
- pw->paned.whichadd = pw->composite.children[PaneIndex(grip)];
- if (dir == ThisBorderOnly || dir == LowRightPane)
- pw->paned.whichsub = pw->composite.children[PaneIndex(grip) + 1];
-
- /*
- * Change the cursor.
- */
-
- if (XtIsRealized(grip)) {
- if ( IsVert(pw) ) {
- if (dir == UpLeftPane)
- cursor = pw->paned.adjust_upper_cursor;
- else if (dir == LowRightPane)
- cursor = pw->paned.adjust_lower_cursor;
- else {
- if ( pw->paned.adjust_this_cursor == None)
- cursor = pw->paned.v_adjust_this_cursor;
- else
- cursor = pw->paned.adjust_this_cursor;
- }
- }
- else {
- if (dir == UpLeftPane)
- cursor = pw->paned.adjust_left_cursor;
- else if (dir == LowRightPane)
- cursor = pw->paned.adjust_right_cursor;
- else {
- if (pw->paned.adjust_this_cursor == None)
- cursor = pw->paned.h_adjust_this_cursor;
- else
- cursor = pw->paned.adjust_this_cursor;
- }
- }
-
- XDefineCursor(XtDisplay(grip), XtWindow(grip), cursor);
- }
-
- EraseInternalBorders(pw);
- ForAllPanes(pw, childP)
- PaneInfo(*childP)->olddelta = -99;
- }
-
- /* Function Name: MoveGripAdjustment
- * Description: This routine moves all panes around when a grip is moved.
- * Arguments: pw - the paned widget.
- * grip - the grip that we are moving.
- * dir - the direction the pane we are interested is w.r.t the
- * grip.
- * loc - location of pointer in proper direction.
- * Returns: none.
- */
-
- static void
- MoveGripAdjustment(pw, grip, dir, loc)
- PanedWidget pw;
- Widget grip;
- Direction dir;
- int loc;
- {
- int diff, add_size = 0, sub_size = 0;
-
- diff = loc - pw->paned.start_loc;
-
- if (pw->paned.whichadd)
- add_size = PaneSize(pw->paned.whichadd, IsVert(pw) ) + diff;
-
- if (pw->paned.whichsub)
- sub_size = PaneSize(pw->paned.whichsub, IsVert(pw) ) - diff;
-
- /*
- * If moving this border only then do not allow either of the borders
- * to go beyond the min or max size allowed.
- */
-
- if ( (dir == ThisBorderOnly) ) {
- int old_add_size = add_size, old_sub_size;
-
- AssignMax(add_size, (int) PaneInfo(pw->paned.whichadd)->min);
- AssignMin(add_size, (int) PaneInfo(pw->paned.whichadd)->max);
- if (add_size != old_add_size)
- sub_size += old_add_size - add_size;
-
- old_sub_size = sub_size;
- AssignMax(sub_size, (int) PaneInfo(pw->paned.whichsub)->min);
- AssignMin(sub_size, (int) PaneInfo(pw->paned.whichsub)->max);
- if (sub_size != old_sub_size) return; /* Abort to current sizes. */
- }
-
- if (add_size != 0)
- PaneInfo(pw->paned.whichadd)->size = add_size;
- if (sub_size != 0)
- PaneInfo(pw->paned.whichsub)->size = sub_size;
- RefigureLocations(pw, PaneIndex(grip), dir);
- DrawTrackLines(pw);
- }
-
- /* Function Name: CommitGripAdjustment
- * Description: Commits the grip adjustment.
- * Arguments: pw - the paned widget.
- * Returns: none
- */
-
- static void
- CommitGripAdjustment(pw)
- PanedWidget pw;
- {
- EraseTrackLines(pw);
- CommitNewLocations(pw);
- DrawInternalBorders(pw);
-
- /*
- * Since the user selected this size then use it as the preferred size.
- */
-
- if (pw->paned.whichadd) {
- Pane pane = PaneInfo(pw->paned.whichadd);
- pane->wp_size = pane->size;
- }
- if (pw->paned.whichsub) {
- Pane pane = PaneInfo(pw->paned.whichsub);
- pane->wp_size = pane->size;
- }
- }
-
- /* Function Name: HandleGrip
- * Description: Handles the grip manipulations.
- * Arguments: grip - the grip widget that has been moved.
- * junk - ** NOT USED **
- * call_data - data passed to us from the grip widget.
- * Returns: none.
- */
-
- /* ARGSUSED */
- static void
- HandleGrip(grip, junk, callData)
- Widget grip;
- XtPointer junk, callData;
- {
- XawGripCallData call_data = (XawGripCallData)callData;
- PanedWidget pw = (PanedWidget) XtParent(grip);
- int loc;
- char action_type;
- Cursor cursor;
- Direction direction;
- Arg arglist[1];
-
- action_type = *call_data->params[0];
-
- if (call_data->num_params == 0 ||
- (action_type == 'C' && call_data->num_params != 1) ||
- (action_type != 'C' && call_data->num_params != 2))
- XtError( "Paned GripAction has been passed incorrect parameters." );
-
- if (islower(action_type)) action_type = toupper(action_type);
-
- loc = GetEventLocation(pw, (XEvent *) (call_data->event));
-
- if (action_type != 'C') {
- if ( isupper(*call_data->params[1]) )
- direction = (Direction) *call_data->params[1];
- else
- direction = (Direction) toupper(*call_data->params[1]);
- }
-
- switch (action_type) {
- case 'S': /* Start adjustment */
- pw->paned.resize_children_to_pref = FALSE;
- StartGripAdjustment(pw, grip, direction);
- pw->paned.start_loc = loc;
- break;
-
- case 'M':
- MoveGripAdjustment(pw, grip, direction, loc);
- break;
-
- case 'C':
- XtSetArg(arglist[0], XtNcursor, &cursor);
- XtGetValues(grip, arglist, (Cardinal) 1);
- XDefineCursor(XtDisplay(grip), XtWindow(grip), cursor);
- CommitGripAdjustment(pw);
- break;
-
- default:
- XtError( "Paned GripAction(); 1st parameter invalid" );
- }
- }
-
- /* Function Name: ResortChildren
- * Description: Resorts the children so that all managed children
- * are first.
- * Arguments: pw - the paned widget.
- * Returns: none.
- */
-
- static void
- ResortChildren(pw)
- PanedWidget pw;
- {
- Widget * unmanagedP, * childP;
-
- unmanagedP = NULL;
- ForAllChildren(pw, childP) {
- if (!IsPane(*childP) || !XtIsManaged(*childP)) {
- /*
- * We only keep track of the first unmanaged pane.
- */
- if (unmanagedP == NULL)
- unmanagedP = childP;
- }
- else { /* must be a managed pane */
- /*
- * If an earlier widget was not a managed pane, then swap
- */
- if (unmanagedP != NULL) {
- Widget child = *unmanagedP;
- *unmanagedP = *childP;
- *childP = child;
- childP = unmanagedP; /* easiest to just back-track */
- unmanagedP = NULL; /* in case there is another managed */
- }
- }
- }
- }
-
- /* Function Name: ManageAndUnmanageGrips
- * Description: This function manages and unmanages the grips so that
- * the managed state of each grip matches that of its pane.
- * Arguments: pw - the paned widget.
- * Returns: none.
- */
-
- static void
- ManageAndUnmanageGrips(pw)
- PanedWidget pw;
- {
- WidgetList managed_grips, unmanaged_grips;
- Widget *managedP, *unmanagedP, *childP;
- Cardinal alloc_size;
-
- alloc_size = (Cardinal) sizeof(Widget) * pw->composite.num_children / 2;
- managedP = managed_grips = (WidgetList) XtMalloc(alloc_size);
- unmanagedP = unmanaged_grips = (WidgetList) XtMalloc(alloc_size);
-
- ForAllChildren(pw, childP)
- if (IsPane(*childP) && HasGrip(*childP))
- if ( XtIsManaged(*childP) )
- *managedP++ = PaneInfo(*childP)->grip;
- else
- *unmanagedP++ = PaneInfo(*childP)->grip;
-
- if (managedP != managed_grips) {
- *unmanagedP++ = *--managedP; /* Last grip is never managed */
- XtManageChildren( managed_grips, (Cardinal)(managedP - managed_grips) );
- }
-
- if (unmanagedP != unmanaged_grips)
- XtUnmanageChildren( unmanaged_grips,
- (Cardinal)(unmanagedP - unmanaged_grips) );
-
- XtFree((char *)managed_grips);
- XtFree((char *)unmanaged_grips);
- }
-
- /* Function Name: CreateGrip
- * Description: Creates a grip widget.
- * Arguments: child - the child that wants a grip to be created for it.
- * Returns: none.
- */
-
- static void
- CreateGrip(child)
- Widget child;
- {
- PanedWidget pw = (PanedWidget) XtParent(child);
- Arg arglist[2];
- Cardinal num_args = 0;
- Cursor cursor;
-
- XtSetArg(arglist[num_args], XtNtranslations, pw->paned.grip_translations);
- num_args++;
- if ( (cursor = pw->paned.grip_cursor) == None )
- if (IsVert(pw))
- cursor = pw->paned.v_grip_cursor;
- else
- cursor = pw->paned.h_grip_cursor;
-
- XtSetArg(arglist[num_args], XtNcursor, cursor);
- num_args++;
- PaneInfo(child)->grip = XtCreateWidget("grip", gripWidgetClass, (Widget)pw,
- arglist, num_args);
-
- XtAddCallback(PaneInfo(child)->grip, XtNcallback,
- HandleGrip, (XtPointer) child);
- }
-
- /* Function Name: GetGCs
- * Description: Gets new GC's.
- * Arguments: w - the paned widget.
- * Returns: none.
- */
-
- static void
- GetGCs(w)
- Widget w;
- {
- PanedWidget pw = (PanedWidget) w;
- XtGCMask valuemask;
- XGCValues values;
-
- /*
- * Draw pane borders in internal border color.
- */
-
- values.foreground = pw->paned.internal_bp;
- valuemask = GCForeground;
- pw->paned.normgc = XtGetGC(w, valuemask, &values);
-
- /*
- * Erase pane borders with background color.
- */
-
- values.foreground = pw->core.background_pixel;
- valuemask = GCForeground;
- pw->paned.invgc = XtGetGC(w, valuemask, &values);
-
- /*
- * Draw Track lines (animate pane borders) in internal border color ^ bg color.
- */
-
- values.function = GXinvert;
- values.plane_mask = pw->paned.internal_bp ^ pw->core.background_pixel;
- values.subwindow_mode = IncludeInferiors;
- valuemask = GCPlaneMask | GCFunction | GCSubwindowMode;
- pw->paned.flipgc = XtGetGC(w, valuemask, &values);
- }
-
- /* Function Name: SetChildrenPrefSizes.
- * Description: Sets the preferred sizes of the children.
- * Arguments: pw - the paned widget.
- * Returns: none.
- */
-
- static void
- SetChildrenPrefSizes(pw, off_size)
- PanedWidget pw;
- Dimension off_size;
- {
- Widget * childP;
- Boolean vert = IsVert(pw);
- XtWidgetGeometry request, reply;
-
- ForAllPanes(pw, childP)
- if ( pw->paned.resize_children_to_pref ||
- (PaneInfo(*childP)->size == 0) ||
- (PaneInfo(*childP)->resize_to_pref) ) {
-
- if (PaneInfo(*childP)->preferred_size != PANED_ASK_CHILD)
- PaneInfo(*childP)->wp_size=PaneInfo(*childP)->preferred_size;
- else {
- if( vert ) {
- request.request_mode = CWWidth;
- request.width = off_size;
- }
- else {
- request.request_mode = CWHeight;
- request.height = off_size;
- }
-
- if ((XtQueryGeometry( *childP, &request, &reply )
- == XtGeometryAlmost) &&
- (reply.request_mode = (vert ? CWHeight : CWWidth)))
- PaneInfo(*childP)->wp_size = GetRequestInfo(&reply, vert);
- else
- PaneInfo(*childP)->wp_size = PaneSize(*childP, vert);
- }
-
- PaneInfo(*childP)->size = PaneInfo(*childP)->wp_size;
- }
- }
-
- /* Function Name: ChangeAllGripCursors
- * Description: Changes all the grip cursors.
- * Arguments: pw - the paned widget.
- * Returns: none
- */
-
- static void
- ChangeAllGripCursors(pw)
- PanedWidget pw;
- {
- Widget * childP;
-
- ForAllPanes(pw, childP) {
- Arg arglist[1];
- Cursor cursor;
-
- if ( (cursor = pw->paned.grip_cursor) == None )
- if ( IsVert(pw) )
- cursor = pw->paned.v_grip_cursor;
- else
- cursor = pw->paned.h_grip_cursor;
-
- if (HasGrip (*childP)) {
- XtSetArg(arglist[0], XtNcursor, cursor);
- XtSetValues(PaneInfo(*childP)->grip, arglist, (Cardinal) 1);
- }
- }
- }
-
- /************************************************************
- *
- * Stack Manipulation routines (Private).
- *
- ************************************************************/
-
- /* Function Name: PushPaneStack
- * Description: Pushes a value onto the pane stack.
- * Arguments: pw - the paned widget.
- * pane - the pane that we are pushing.
- * Returns: none.
- */
-
- static void
- PushPaneStack(pw, pane)
- PanedWidget pw;
- Pane pane;
- {
- PaneStack * stack = (PaneStack *) XtMalloc(sizeof(PaneStack));
-
- stack->next = pw->paned.stack;
- stack->pane = pane;
- stack->start_size = pane->size;
-
- pw->paned.stack = stack;
- }
-
- /* Function Name: GetPaneStack
- * Description: Gets the top value from the pane stack.
- * Arguments: pw - the paned widget.
- * shrink - TRUE if we want to shrink this pane,
- * FALSE otherwise.
- * ** RETURNED ** pane - the pane that we are popping.
- * ** RETURNED ** start_size - the size that this pane started at.
- * Returns: none.
- */
-
- static void
- GetPaneStack(pw, shrink, pane, start_size)
- PanedWidget pw;
- Boolean shrink;
- Pane * pane;
- int * start_size;
- {
- if (pw->paned.stack == NULL) {
- *pane = NULL;
- return;
- }
-
- *pane = pw->paned.stack->pane;
- *start_size = pw->paned.stack->start_size;
-
- if (shrink != ((*pane)->size > *start_size)) *pane = NULL;
- }
-
- /* Function Name: PopPaneStack
- * Description: Pops the top item off the pane stack.
- * Arguments: pw - the paned widget.
- * Returns: TRUE if this is not the last element on the stack.
- */
-
- static Boolean
- PopPaneStack(pw)
- PanedWidget pw;
- {
- PaneStack * stack = pw->paned.stack;
-
- if (stack == NULL) return(FALSE);
-
- pw->paned.stack = stack->next;
- XtFree((char*)stack);
-
- if (pw->paned.stack == NULL) return(FALSE);
- return(TRUE);
- }
-
- /* Function Name: ClearPaneStack
- * Description: removes all entries from the pane stack.
- * Arguments: pw - the paned widget.
- * Returns: none
- */
-
- static void
- ClearPaneStack(pw)
- PanedWidget pw;
- {
- while(PopPaneStack(pw));
- }
-
- /************************************************************
- *
- * Semi-public routines.
- *
- ************************************************************/
-
- /* Function Name: ClassInitialize
- * Description: The Paned widgets class initialization proc.
- * Arguments: none.
- * Returns: none.
- */
-
- static void
- ClassInitialize()
- {
- XawInitializeWidgetSet();
- XtAddConverter( XtRString, XtROrientation, XmuCvtStringToOrientation,
- NULL, (Cardinal)0 );
- }
-
- /* The Geometry Manager only allows changes after Realize if
- * allow_resize is True in the constraints record.
- *
- * For vertically paned widgets:
- *
- * It only allows height changes, but offers the requested height
- * as a compromise if both width and height changes were requested.
- *
- * For horizontal widgets the converse is true.
- * As all good Geometry Managers should, we will return No if the
- * request will have no effect; i.e. when the requestor is already
- * of the desired geometry.
- */
-
- static XtGeometryResult GeometryManager(w, request, reply)
- Widget w;
- XtWidgetGeometry *request, *reply;
- {
- PanedWidget pw = (PanedWidget) XtParent(w);
- XtGeometryMask mask = request->request_mode;
- Dimension old_size, old_wpsize, old_paned_size;
- Pane pane = PaneInfo(w);
- register Boolean vert = IsVert(pw);
- Dimension on_size, off_size;
- XtGeometryResult result;
- Boolean almost = FALSE;
-
- /*
- * If any of the following is true, disallow the geometry change.
- *
- * o The paned widget is realized and allow_resize is false for the pane.
- * o The child did not ask to change the on_size.
- * o The request is not a width or height request.
- * o The requested size is the same as the current size.
- */
-
- if ( (XtIsRealized((Widget)pw) && !pane->allow_resize) ||
- !(mask & ((vert) ? CWHeight : CWWidth)) ||
- (mask & ~(CWWidth | CWHeight)) ||
- (GetRequestInfo(request, vert) == PaneSize(w, vert)) ) {
- return XtGeometryNo;
- }
-
- old_paned_size = PaneSize( (Widget) pw, vert);
- old_wpsize = pane->wp_size;
- old_size = pane->size;
-
- pane->wp_size = pane->size = GetRequestInfo(request, vert);
-
- AdjustPanedSize(pw, PaneSize((Widget) pw, !vert), &result, &on_size,
- &off_size);
-
- /*
- * Fool the Refigure Locations proc to thinking that we are
- * a different on_size;
- */
-
- if (result != XtGeometryNo)
- if (vert)
- pw->core.height = on_size;
- else
- pw->core.width = on_size;
-
- RefigureLocations(pw, PaneIndex(w), AnyPane);
-
- /*
- * Set up reply struct and reset core on_size.
- */
-
- if (vert) {
- pw->core.height = old_paned_size;
- reply->height = pane->size;
- reply->width = off_size;
- }
- else {
- pw->core.width = old_paned_size;
- reply->height = off_size;
- reply->width = pane->size;
- }
-
- /*
- * IF either of the following is true.
- *
- * o There was a "off_size" request and the new "off_size" is different
- * from that requested.
- * o There was no "off_size" request and the new "off_size" is different
- *
- * o The "on_size" we will allow is different from that requested.
- *
- * THEN: set almost
- */
-
- if ( !((vert ? CWWidth : CWHeight) & mask))
- if (vert)
- request->width = w->core.width;
- else
- request->height = w->core.height;
-
- almost = GetRequestInfo(request, !vert) != GetRequestInfo(reply, !vert);
- almost |= GetRequestInfo(request, vert) != GetRequestInfo(reply, vert);
-
- if ( (mask & XtCWQueryOnly) || almost ) {
- pane->wp_size = old_wpsize;
- pane->size = old_size;
- RefigureLocations(pw, PaneIndex(w), AnyPane);
- reply->request_mode = CWWidth | CWHeight;
- if (almost) return XtGeometryAlmost;
- }
- else {
- AdjustPanedSize(pw, PaneSize((Widget) pw, !vert), NULL, NULL, NULL);
- CommitNewLocations( pw ); /* layout already refigured. */
- }
- return XtGeometryDone;
- }
-
- /* ARGSUSED */
- static void Initialize(request, new)
- Widget request, new;
- {
- PanedWidget pw = (PanedWidget)new;
-
- GetGCs( (Widget) pw);
-
- pw->paned.recursively_called = False;
- pw->paned.stack = NULL;
- pw->paned.resize_children_to_pref = TRUE;
- pw->paned.num_panes = 0;
- }
-
- static void
- Realize(w, valueMask, attributes)
- Widget w;
- Mask *valueMask;
- XSetWindowAttributes *attributes;
- {
- PanedWidget pw = (PanedWidget) w;
- Widget * childP;
-
- if ((attributes->cursor = (pw)->paned.cursor) != None)
- *valueMask |= CWCursor;
-
- (*SuperClass->core_class.realize) (w, valueMask, attributes);
-
- /*
- * Before we commit the new locations we need to realize all the panes and
- * their grips.
- */
-
- ForAllPanes(pw, childP) {
- XtRealizeWidget( *childP );
- if (HasGrip (*childP))
- XtRealizeWidget( PaneInfo(*childP)->grip );
- }
-
- RefigureLocationsAndCommit(w);
- pw->paned.resize_children_to_pref = FALSE;
- } /* Realize */
-
- static void
- ReleaseGCs(w)
- Widget w;
- {
- register PanedWidget pw = (PanedWidget)w;
-
- XtReleaseGC( w, pw->paned.normgc );
- XtReleaseGC( w, pw->paned.invgc );
- XtReleaseGC( w, pw->paned.flipgc );
- }
-
- static void InsertChild(w)
- register Widget w;
- {
- Pane pane = PaneInfo(w);
-
- /* insert the child widget in the composite children list with the */
- /* superclass insert_child routine. */
- (*SuperClass->composite_class.insert_child)(w);
-
- if (!IsPane(w)) return;
-
- /* ||| Panes will be added in the order they are created, temporarily */
-
- if ( pane->show_grip == TRUE ) {
- CreateGrip(w);
- if (pane->min == PANED_GRIP_SIZE)
- pane->min = PaneSize(pane->grip, IsVert((PanedWidget) XtParent(w)));
- }
- else {
- if (pane->min == PANED_GRIP_SIZE)
- pane->min = 1;
- pane->grip = NULL;
- }
-
- pane->size = 0;
- pane->paned_adjusted_me = FALSE;
-
- } /* InsertChild */
-
- static void DeleteChild(w)
- Widget w;
- {
- /* remove the subwidget info and destroy the grip */
-
- if ( IsPane(w) && HasGrip(w) ) XtDestroyWidget(PaneInfo(w)->grip);
-
- /* delete the child widget in the composite children list with the */
- /* superclass delete_child routine. */
- (*SuperClass->composite_class.delete_child) (w);
-
- } /* DeleteChild */
-
- static void ChangeManaged(w)
- Widget w;
- {
- PanedWidget pw = (PanedWidget)w;
- Boolean vert = IsVert(pw);
- Dimension size;
- register Widget *childP;
-
- if (pw->paned.recursively_called++) return;
-
- /*
- * If the size is zero then set it to the size of the widest or tallest pane.
- */
-
- if ( (size = PaneSize( (Widget) pw, !vert )) == 0) {
- size = 1;
- ForAllChildren(pw, childP)
- if ( XtIsManaged(*childP) && (PaneSize( *childP, !vert ) > size) )
- size = PaneSize( *childP, !vert );
- }
-
- ManageAndUnmanageGrips(pw);
- pw->paned.recursively_called = False;
- ResortChildren(pw);
-
- pw->paned.num_panes = 0;
- ForAllChildren(pw, childP)
- if ( IsPane(*childP) )
- if ( XtIsManaged(*childP) ) {
- Pane pane = PaneInfo(*childP);
- if (HasGrip(*childP))
- PaneInfo(pane->grip)->position = pw->paned.num_panes;
- pane->position = pw->paned.num_panes; /*TEMPORY -CDP 3/89 */
- pw->paned.num_panes++;
- }
- else
- break; /* This list is already sorted. */
-
- SetChildrenPrefSizes( (PanedWidget) w, size);
-
- /*
- * ForAllPanes can now be used.
- */
-
- if ( PaneSize((Widget) pw, vert) == 0 )
- AdjustPanedSize(pw, size, NULL, NULL, NULL);
-
- if (XtIsRealized( (Widget) pw))
- RefigureLocationsAndCommit( (Widget) pw);
-
- } /* ChangeManaged */
-
- /* Function Name: Resize
- * Description: The paned widget's resize proc.
- * Arguments: w - the paned widget.
- * Returns: none.
- */
-
- static void
- Resize(w)
- Widget w;
- {
- SetChildrenPrefSizes( (PanedWidget) w,
- PaneSize(w, !IsVert((PanedWidget) w)) );
- RefigureLocationsAndCommit(w);
- }
-
- /* ARGSUSED */
- static void
- Redisplay(w, event, region)
- Widget w;
- XEvent * event; /* unused. */
- Region region; /* unused. */
- {
- DrawInternalBorders( (PanedWidget) w);
- }
-
- /* ARGSUSED */
- static Boolean
- SetValues(old, request, new)
- Widget old, request, new;
- {
- PanedWidget old_pw = (PanedWidget) old;
- PanedWidget new_pw = (PanedWidget) new;
- Boolean redisplay = FALSE;
-
- if ( (old_pw->paned.cursor != new_pw->paned.cursor) && XtIsRealized(new))
- XDefineCursor(XtDisplay(new), XtWindow(new), new_pw->paned.cursor);
-
- if ( (old_pw->paned.internal_bp != new_pw->paned.internal_bp) ||
- (old_pw->core.background_pixel != new_pw->core.background_pixel) ) {
- ReleaseGCs(old);
- GetGCs(new);
- redisplay = TRUE;
- }
-
- if ( (old_pw->paned.grip_cursor != new_pw->paned.grip_cursor) ||
- (old_pw->paned.v_grip_cursor != new_pw->paned.v_grip_cursor) ||
- (old_pw->paned.h_grip_cursor != new_pw->paned.h_grip_cursor) ) {
- ChangeAllGripCursors(new_pw);
- }
-
- if ( IsVert(old_pw) != IsVert(new_pw)) {
- /*
- * We are fooling the paned widget into thinking that is needs to
- * fully refigure everything, which is what we want.
- */
- if (IsVert(new_pw))
- new_pw->core.width = 0;
- else
- new_pw->core.height = 0;
-
- new_pw->paned.resize_children_to_pref = TRUE;
- ChangeManaged(new); /* Seems weird, but does the right thing. */
- new_pw->paned.resize_children_to_pref = FALSE;
- if (new_pw->paned.grip_cursor == None)
- ChangeAllGripCursors(new_pw);
- return(TRUE);
- }
-
- if (old_pw->paned.internal_bw != new_pw->paned.internal_bw) {
- AdjustPanedSize( new_pw, PaneSize(new, !IsVert(old_pw)),
- NULL, NULL, NULL);
- RefigureLocationsAndCommit(new);
- return(TRUE); /* We have done a full configuration, return.*/
- }
-
- if ( (old_pw->paned.grip_indent != new_pw->paned.grip_indent) &&
- (XtIsRealized(new)) ) {
- CommitNewLocations(new_pw);
- redisplay = TRUE;
- }
-
- return (redisplay);
- } /* SetValues */
-
-
- /* ARGSUSED */
- static Boolean
- PaneSetValues(old, request, new)
- Widget old, request, new;
- {
- Pane old_pane = PaneInfo(old);
- Pane new_pane = PaneInfo(new);
- Boolean redisplay = FALSE;
-
- /* Check for new min and max. */
-
- if (old_pane->min != new_pane->min || old_pane->max != new_pane->max)
- XawPanedSetMinMax(new, (int)new_pane->min, (int)new_pane->max);
-
- /* Check for change in XtNshowGrip. */
-
- if (old_pane->show_grip != new_pane->show_grip)
- if (new_pane->show_grip == TRUE) {
- CreateGrip(new);
- if (XtIsRealized(XtParent(new))) {
- if (XtIsManaged(new)) /* if paned is unrealized this will
- happen automatically at realize time.*/
- XtManageChild(PaneInfo(new)->grip); /* manage the grip. */
- XtRealizeWidget(PaneInfo(new)->grip); /* realize the grip. */
- CommitNewLocations( (PanedWidget) XtParent(new) );
- }
- }
- else if ( HasGrip(old) ) {
- XtDestroyWidget( old_pane->grip );
- new_pane->grip = NULL;
- redisplay = TRUE;
- }
-
- /* ||| need to look at position changes */
-
- return(redisplay);
- }
-
- /************************************************************
- *
- * Public routines.
- *
- ************************************************************/
-
- /* Function Name: XawPanedSetMinMax
- * Description: Sets the min and max size for a pane.
- * Arguments: widget - the widget that is a child of the Paned widget.
- * min, max - the new min and max size for the pane.
- * Returns: none.
- */
-
- void
- #if NeedFunctionPrototypes
- XawPanedSetMinMax(Widget widget, int min, int max)
- #else
- XawPanedSetMinMax(widget, min, max)
- Widget widget;
- int min, max;
- #endif
- {
- Pane pane = PaneInfo(widget);
-
- pane->min = min;
- pane->max = max;
- RefigureLocationsAndCommit( widget->core.parent );
- }
-
- /* Function Name: XawPanedGetMinMax
- * Description: Gets the min and max size for a pane.
- * Arguments: widget - the widget that is a child of the Paned widget.
- ** RETURNED ** min, max - the current min and max size for the pane.
- * Returns: none.
- */
-
- void
- #if NeedFunctionPrototypes
- XawPanedGetMinMax(Widget widget, int *min, int *max)
- #else
- XawPanedGetMinMax(widget, min, max)
- Widget widget;
- int *min, *max;
- #endif
- {
- Pane pane = PaneInfo(widget);
-
- *min = pane->min;
- *max = pane->max;
- }
-
- /* Function Name: XawPanedSetRefigureMode
- * Description: Allows a flag to be set the will inhibit
- * the paned widgets relayout routine.
- * Arguments: w - the paned widget.
- * mode - if FALSE then inhibit refigure.
- * Returns: none.
- */
-
- void
- #if NeedFunctionPrototypes
- XawPanedSetRefigureMode(Widget w,
- #if NeedWidePrototypes
- int mode)
- #else
- Boolean mode)
- #endif
- #else
- XawPanedSetRefigureMode(w, mode)
- Widget w;
- Boolean mode;
- #endif
- {
- ((PanedWidget) w)->paned.refiguremode = mode;
- RefigureLocationsAndCommit( w );
- }
-
- /* Function Name: XawPanedGetNumSub
- * Description: Returns the number of panes in the paned widget.
- * Arguments: w - the paned widget.
- * Returns: the number of panes in the paned widget.
- */
-
- int
- #if NeedFunctionPrototypes
- XawPanedGetNumSub(Widget w)
- #else
- XawPanedGetNumSub(w)
- Widget w;
- #endif
- {
- return ((PanedWidget)w)->paned.num_panes;
- }
-
- /* Function Name: XawPanedAllowResize
- * Description: Allows a flag to be set that determines if the paned
- * widget will allow geometry requests from this child
- * Arguments: widget - a child of the paned widget.
- * Returns: none.
- */
-
- void
- #if NeedFunctionPrototypes
- XawPanedAllowResize(Widget widget,
- #if NeedWidePrototypes
- int allow_resize)
- #else
- Boolean allow_resize)
- #endif
- #else
- XawPanedAllowResize(widget, allow_resize)
- Widget widget;
- Boolean allow_resize;
- #endif
- {
- PaneInfo(widget)->allow_resize = allow_resize;
- }
-