view lwlib/xlwscrollbar.h @ 4967:0d4c9d0f6a8d

rewrite dynarr code -------------------- ChangeLog entries follow: -------------------- src/ChangeLog addition: 2010-02-03 Ben Wing <ben@xemacs.org> * device-x.c (x_get_resource_prefix): * device-x.c (Fx_get_resource): * device-x.c (Fx_get_resource_prefix): * device-x.c (Fx_put_resource): * dialog-msw.c: * dialog-msw.c (handle_question_dialog_box): * dired-msw.c (mswindows_sort_files): * dired-msw.c (mswindows_get_files): * extents.c (extent_fragment_sort_by_priority): * extents.c (Fset_extent_parent): * file-coding.c (coding_reader): * file-coding.c (coding_writer): * file-coding.c (gzip_convert): * frame.c (generate_title_string): * gutter.c (calculate_gutter_size_from_display_lines): * indent.c (vmotion_1): * lread.c (read_bit_vector): * mule-coding.c (iso2022_decode): * rangetab.c: * rangetab.c (Fcopy_range_table): * rangetab.c (Fget_range_table): * rangetab.c (unified_range_table_copy_data): * redisplay-msw.c (mswindows_output_string): * redisplay-output.c (output_display_line): * redisplay-output.c (redisplay_move_cursor): * redisplay-output.c (redisplay_clear_bottom_of_window): * redisplay-tty.c (tty_output_ichar_dynarr): * redisplay-tty.c (set_foreground_to): * redisplay-tty.c (set_background_to): * redisplay-xlike-inc.c (XLIKE_output_string): * redisplay.c (redisplay_window_text_width_string): * redisplay.c (redisplay_text_width_string): * redisplay.c (create_text_block): * redisplay.c (SET_CURRENT_MODE_CHARS_PIXSIZE): * redisplay.c (generate_fstring_runes): * redisplay.c (regenerate_modeline): * redisplay.c (ensure_modeline_generated): * redisplay.c (real_current_modeline_height): * redisplay.c (create_string_text_block): * redisplay.c (regenerate_window): * redisplay.c (REGEN_INC_FIND_START_END): * redisplay.c (point_visible): * redisplay.c (redisplay_window): * redisplay.c (mark_glyph_block_dynarr): * redisplay.c (line_start_cache_start): * redisplay.c (start_with_line_at_pixpos): * redisplay.c (update_line_start_cache): * redisplay.c (glyph_to_pixel_translation): * redisplay.c (pixel_to_glyph_translation): * sysdep.c (qxe_readdir): * text.c (dfc_convert_to_external_format): * text.c (dfc_convert_to_internal_format): * toolbar-common.c (common_output_toolbar_button): * window.c (window_modeline_height): * window.c (Fwindow_last_line_visible_height): * window.c (window_displayed_height): * window.c (window_scroll): * window.c (get_current_pixel_pos): Use Dynarr_begin() in place of Dynarr_atp (foo, 0). * dynarr.c (Dynarr_realloc): * dynarr.c (Dynarr_lisp_realloc): * dynarr.c (Dynarr_resize): * dynarr.c (Dynarr_insert_many): * dynarr.c (Dynarr_delete_many): * dynarr.c (Dynarr_memory_usage): * dynarr.c (stack_like_malloc): * dynarr.c (stack_like_free): * lisp.h: * lisp.h (DECLARE_DYNARR_LISP_IMP): * lisp.h (XD_DYNARR_DESC): * lisp.h (Dynarr_pop): * gutter.c (output_gutter): * redisplay-output.c (sync_rune_structs): * redisplay-output.c (redisplay_output_window): Redo the dynarr code, add greater checks. Rename the `len', `largest' and `max' members to `len_', `largest_' and `max_' to try and catch existing places that might directly modify these values. Make new accessors Dynarr_largest() and Dynarr_max() and make them and existing Dynarr_length() be non-lvalues by adding '+ 0' to them; fix a couple of places in the redisplay code that tried to modify the length directly by setting Dynarr_length(). Use the accessors whenever possible even in the dynarr code itself. The accessors also verify that 0 <= len <= largest <= max. Rename settor function Dynarr_set_size() to Dynarr_set_length() and use it more consistently; also create lower-level Dynarr_set_length_1(). This latter function should be the only function that directly modifies the `len_' member of a Dynarr, and in the process makes sure that the `largest' value is kept correct. Consistently use ERROR_CHECK_STRUCTURES instead of ERROR_CHECK_TYPES for error-checking code. Reintroduce the temporarily disabled verification code on the positions of Dynarr_at(), Dynarr_atp() and Dynarr_atp_past_end(). Also create Dynarr_resize_if() in place of a repeated code fragment. Clean up all the functions that modify Dynarrs to use the new macros and functions and verify the correctness of the Dynarr both before and after the change. Note that there are two kinds of verification -- one for accessing and one for modifying. The difference is that the modify verification additionally checks to make sure that the Dynarr isn't locked. (This is used in redisplay to check for problems with reentrancy.) * lrecord.h: Move XD_DYNARR_DESC to lisp.h, grouping with the dynarr code.
author Ben Wing <ben@xemacs.org>
date Wed, 03 Feb 2010 20:51:18 -0600
parents 8de8e3f6228a
children ade4c7e2c6cb
line wrap: on
line source

/* Implements a lightweight scrollbar widget.  
   Copyright (C) 1992, 1993, 1994 Lucid, Inc.

This file is part of the Lucid Widget Library.

The Lucid Widget Library is free software; you can redistribute it and/or 
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

The Lucid Widget Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Created by Douglas Keller <dkeller@vnet.ibm.com> */

#ifndef INCLUDED_xlwscrollbar_h_
#define INCLUDED_xlwscrollbar_h_

#include <X11/Core.h>

/* Motif-compatible resource names */
#ifndef _XmStrDefs_h_

#define XmNbackground		"background"
#define XmNbottomShadowColor	"bottomShadowColor"
#define XmNbottomShadowPixmap	"bottomShadowPixmap"
#define XmNforeground		"foreground"
#define XmNincrement		"increment"
#define XmNinitialDelay		"initialDelay"
#define XmNmaximum		"maximum"
#define XmNminimum		"minimum"
#define XmNpageIncrement	"pageIncrement"
#define XmNrepeatDelay		"repeatDelay"
#define XmNshadowThickness	"shadowThickness"
#define XmNborderWidth		"borderWidth"
#define XmNshowArrows		"showArrows"
#define XmNsliderSize		"sliderSize"
#define XmNtopShadowColor	"topShadowColor"
#define XmNtopShadowPixmap	"topShadowPixmap"
#define XmNtroughColor		"troughColor"
#define XmNvalue		"value"
#define XmNvalueChangedCallback	"valueChangedCallback"
#define XmNincrementCallback	"incrementCallback"
#define XmNdecrementCallback	"decrementCallback"
#define XmNpageIncrementCallback "pageIncrementCallback"
#define XmNpageDecrementCallback "pageDecrementCallback"
#define XmNtoTopCallback	"toTopCallback"
#define XmNtoBottomCallback	"toBottomCallback"
#define XmNdragCallback		"dragCallback"
#define XmNorientation		"orientation"

#define XmCBackground		"Background"
#define XmCBottomShadowColor	"BottomShadowColor"
#define XmCBottomShadowPixmap	"BottomShadowPixmap"
#define XmCTopShadowPixmap	"TopShadowPixmap"
#define XmCForeground		"Foreground"
#define XmCIncrement		"Increment"
#define XmCInitialDelay		"InitialDelay"
#define XmCMaximum		"Maximum"
#define XmCMinimum		"Minimum"
#define XmCPageIncrement	"PageIncrement"
#define XmCRepeatDelay		"RepeatDelay"
#define XmCShadowThickness	"ShadowThickness"
#define XmCBorderWidth		"BorderWidth"
#define XmCShowArrows		"ShowArrows"
#define XmCSliderSize		"SliderSize"
#define XmCTopShadowColor	"TopShadowColor"
#define XmCTroughColor		"TroughColor"
#define XmCValue		"Value"
#define XmCValueChangedCallback	"ValueChangedCallback"
#define XmCIncrementCallback	"IncrementCallback"
#define XmCDecrementCallback	"DecrementCallback"
#define XmCPageIncrementCallback "PageIncrementCallback"
#define XmCPageDecrementCallback "PageDecrementCallback"
#define XmCToTopCallback	"ToTopCallback"
#define XmCToBottomCallback	"ToBottomCallback"
#define XmCDragCallback		"DragCallback"
#define XmCOrientation		"Orientation"

#endif /* _XmStrDefs_h_ */

/* New resources that Motif does not have.
   Maybe we should use a different prefix. */

/* "knob" is obsolete; use "slider" instead. */
#define XmNknobStyle		"knobStyle"
#define XmCKnobStyle		"KnobStyle"

#define XmNsliderStyle		"sliderStyle"
#define XmCSliderStyle		"SliderStyle"

#define XmNarrowPosition	"arrowPosition"
#define XmCArrowPosition	"ArrowPosition"

#ifndef _Xm_h

enum {
    XmCR_NONE,
    XmCR_VALUE_CHANGED = 2,
    XmCR_INCREMENT,
    XmCR_DECREMENT,
    XmCR_PAGE_INCREMENT,
    XmCR_PAGE_DECREMENT,
    XmCR_TO_TOP,
    XmCR_TO_BOTTOM,
    XmCR_DRAG
};

enum {
    XmNO_ORIENTATION,
    XmVERTICAL,
    XmHORIZONTAL
};

#endif /* ! _Xm_h */

extern WidgetClass xlwScrollBarWidgetClass;

typedef struct _XlwScrollBarClassRec *XlwScrollBarWidgetClass;
typedef struct _XlwScrollBarRec      *XlwScrollBarWidget;

typedef struct
{
   int reason;
   XEvent * event;
   int value;
   int pixel;
} XlwScrollBarCallbackStruct;

void XlwScrollBarGetValues(Widget widget, int *value, int *sliderSize,
			   int *increment, int *pageIncrement);

void XlwScrollBarSetValues(Widget widget, int value, int sliderSize,
			   int increment, int pageIncrement, Boolean notify);

#endif /* INCLUDED_xlwscrollbar_h_ */