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ecb-layout.el
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;;; ecb-layout.el --- layout for ECB
;; Copyright (C) 2000 - 2005 Jesper Nordenberg,
;; Klaus Berndl,
;; Kevin A. Burton,
;; Free Software Foundation, Inc.
;; Author: Jesper Nordenberg <mayhem@home.se>
;; Klaus Berndl <klaus.berndl@sdm.de>
;; Kevin A. Burton <burton@openprivacy.org>
;; Maintainer: Klaus Berndl <klaus.berndl@sdm.de>
;; Keywords: browser, code, programming, tools
;; Created: 2000
;; This program 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.
;; This program 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
;; GNU Emacs; see the file COPYING. If not, write to the Free Software
;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
;; $Id$
;;; Commentary:
;;
;; Contains functions for settings the ECB layout.
;;
;; This file is part of the ECB package which can be found at:
;; http://ecb.sourceforge.net
;; This file has been re-implemented by Klaus Berndl <klaus.berndl@sdm.de>.
;; What has been done:
;; Completely rewritten the layout mechanism for better customizing, adding
;; new layouts, better redrawing and more straightforward code.
;; 1. Now all user-layouting is done by customizing the new option
;; `ecb-layout-name' or by the command `ecb-change-layout'. The function
;; `ecb-redraw-layout' (formally known as 'ecb-set-layout) can still be
;; called interactively. But it just redraws the layout specified in
;; `ecb-layout-name'. All changes to the layout must be made by customizing
;; this new option. Please read the very detailed comment of
;; `ecb-layout-name'!
;; 2. Adding new layouts is now much easier and more straightforward: We have
;; now a main core-layout function (`ecb-redraw-layout-full') which is the
;; "environment" for the specific "layout-functions". The core function
;; does first some layout independent actions, then calls the
;; "layout-function" for the name which has been set in `ecb-layout-name'
;; and after that it does some layout independent actions again (see the
;; comments in this function). See the macro `ecb-layout-define' and the
;; command `ecb-create-new-layout'!
;;
;; Background-info: For each layout-type (ecb-windows left, right, top and
;; left-right) there is one function:
;; 'ecb-delete-window-ecb-windows-[left|right|top|leftright]'.
;; These functions follow these guide-lines:
;; - Preconditions for these functions:
;; + the edit-area is splitted - at least in two edit-windows
;; + The function gets two arguments: The window to delete (if nil then the
;; current window has to be deleted) and the list of all current
;; edit-windows.
;; + These functions are always(!) called with deactivated advices of
;; `delete-window' function.
;; + These functions can only use `delete-window' of the set of maybe
;; adviced window functions, because of a bug in advice.el only one
;; functionﾴs advice can be deactivated within a advice itself!
;; - What must they do: Doing the appropriate action (e.g.
;; `ecb-delete-window-ecb-windows-left' must delete the window. This action
;; must be done appropriate for the current ECB-layout type (see
;; postconditions)
;; - Postcondition of these functions:
;; + The named edit-window must be deleted and all ecb-windows in the
;; ecb-frame must have the layout like before the delete.
;; + If the current window has been deleted then point must reside after
;; deletion in the next edit-window in a circular meaning (i.e. if the
;; last edit-window has been deleted, point must stay afterwards in the
;; first edit-window). If a window unequal the current window has been
;; deleted point must stay in the window before deletion at the same
;; place.
;;
;; New adviced intelligent window-functions as replacement for these originals:
;; - `other-window'
;; - `delete-window'
;; - `delete-other-windows'
;; - `delete-windows-on'
;; - `split-window-horizontally'
;; - `split-window-vertically'
;; - `split-window'
;; - `display-buffer'
;; - `switch-to-buffer'
;; - `switch-to-buffer-other-window'
;; - `other-window-for-scrolling'
;; - `balance-windows'
;; The behavior of the adviced functions is:
;; - All these function behaves exactly like their corresponding original
;; functions but they always act as if the edit-window(s) of ECB would be the
;; only window(s) of the ECB-frame. So the edit-window(s) of ECB seems to be
;; a normal Emacs-frame to the user.
;; - If a persistent compile-window is used all buffers for which
;; `ecb-compilation-buffer-p' returns not nil are handled in the
;; compile-window!
;;
;;; History
;;
;; For the ChangeLog of this file see the CVS-repository. For a complete
;; history of the ECB-package see the file NEWS.
;;; Code:
(eval-when-compile
(require 'silentcomp))
(require 'ecb-util)
(require 'ecb-common-browser)
;;(require 'ecb-speedbar)
(require 'ecb-compilation)
(require 'ecb-create-layout)
(require 'ecb-navigate)
;; XEmacs
(silentcomp-defvar scrollbars-visible-p)
(silentcomp-defun window-displayed-height)
(silentcomp-defvar pre-display-buffer-function)
(silentcomp-defvar split-width-threshold)
(silentcomp-defvar split-width-threshold)
(silentcomp-defun popup-menu-and-execute-in-window)
(silentcomp-defvar modeline-map)
(silentcomp-defun modeline-menu)
;; for the display-buffer stuff of XEmacs
(silentcomp-defun last-nonminibuf-frame)
(silentcomp-defun check-argument-type)
(silentcomp-defun buffer-dedicated-frame)
(silentcomp-defun display-buffer-1)
(silentcomp-defun frame-property)
(silentcomp-defun window-leftmost-p)
(silentcomp-defun window-rightmost-p)
(silentcomp-defun window-parent)
(silentcomp-defun window-previous-child)
(silentcomp-defun window-next-child)
(silentcomp-defun window-pixel-edges)
(silentcomp-defun window-pixel-height)
(silentcomp-defun record-buffer)
(silentcomp-defun push-window-configuration)
(silentcomp-defun set-frame-property)
(silentcomp-defvar temp-buffer-shrink-to-fit)
;; Emacs
(silentcomp-defvar scroll-bar-mode)
;; only Emacs 21 has this
(silentcomp-defvar window-size-fixed)
;;(silentcomp-defun fit-window-to-buffer)
(silentcomp-defvar temp-buffer-resize-mode)
(silentcomp-defun temp-buffer-resize-mode)
(silentcomp-defun modify-frame-parameters)
;; Emacs 21
(silentcomp-defvar grep-window-height)
(eval-when-compile
;; to avoid compiler grips
(require 'cl))
(defvar ecb-layouts-reload-needed t)
(defun ecb-load-layouts ()
"Load all defined layouts"
(when ecb-layouts-reload-needed
(require 'ecb-layout-defs)
(if (file-readable-p ecb-create-layout-file)
(load-file ecb-create-layout-file))
(setq ecb-layouts-reload-needed nil)))
(defgroup ecb-layout nil
"Settings for the screen-layout of the Emacs code browser."
:group 'ecb
:prefix "ecb-")
(defgroup ecb-compilation nil
"Settings for the compile window of ECB."
:group 'ecb-layout
:prefix "ecb-")
(defconst ecb-layout-option-set-function
(function (lambda (symbol value)
(set symbol value)
;; we must check this because otherwise the layout would be drawn
;; if we have changed the initial value regardless if ECB is
;; activated or not.
(when (and (boundp 'ecb-minor-mode)
ecb-minor-mode
(frame-live-p ecb-frame))
(let ((curr-frame (selected-frame)))
(unwind-protect
(progn
(select-frame ecb-frame)
(ecb-redraw-layout-full))
(select-frame curr-frame)))))))
(defcustom ecb-select-edit-window-on-redraw nil
"*Select the first edit window on `ecb-redraw-layout'."
:group 'ecb-layout
:type 'boolean)
(defcustom ecb-new-ecb-frame nil
"*Create a new frame at activation time of ECB."
:group 'ecb-layout
:group 'ecb-most-important
:type 'boolean)
(defcustom ecb-activate-before-new-frame-created-hook nil
"*Hook run before the new ECB-frame is created.
This has only an effect if `ecb-new-ecb-frame' is not nil \(otherwise this
hook is not evaluated)."
:group 'ecb-layout
:type 'hook)
(defvar ecb-last-selected-layout nil
"Name of that layout which was current direct before switching to another
layout.")
;; TODO: Klaus Berndl <klaus.berndl@sdm.de>: UPDATE the layout-list in the docstring...
(defcustom ecb-layout-name "left8"
"*Select a window layout of ECB.
Value is any arbitrary string. There are four different types of layouts:
left, right, top and left-right, which means the location of the
ECB-tree-windows in the ECB-frame. Currently there are 20 predefined layouts;
names see below. You can savely try out any of them by changing this value and
saving it only for the current session. If you are sure which layout you want
you can save it for future sessions. To get a picture of the layout for name
<name> call `ecb-show-layout-help'.
Currently available layouts:
+ Left layouts:
left1 left2 left3 left4 left5 left6 left7 left8 left9 left10 left11 left12
left13 left14 left15
+ Right layouts:
right1
+ Top layouts:
top1 top2
+ Left-right layouts:
leftright1 leftright2 leftright3
Regardless of the settings you define here: If you have destroyed or
changed the ECB-screen-layout by any action you can always go back to this
layout with `ecb-redraw-layout'"
:group 'ecb-layout
:group 'ecb-most-important
:initialize 'custom-initialize-default
:set (function (lambda (symbol value)
(ecb-load-layouts)
(if (fboundp (intern (format "ecb-layout-function-%s"
value)))
(progn
(setq ecb-last-selected-layout ecb-layout-name)
(funcall ecb-layout-option-set-function
symbol value))
(ecb-error "There is no layout with name %s available!"
value))))
:type 'string)
(defun ecb-enable-temp-buffer-shrink-to-fit (arg)
"Enables `temp-buffer-resize-mode' \(GNU Emacs) rsp.
`temp-buffer-shrink-to-fit' \(XEmacs) when a comile-window is used. When the
compile-window is disabled or when ECB is deactivated then the old state of
these modes/variables is restored."
(if arg
(progn
;; store old value if not already done
(or (get 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit)
(put 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit
(cons 'stored
(if ecb-running-xemacs
temp-buffer-shrink-to-fit
temp-buffer-resize-mode))))
;; now we activate temp-buffer-shrinking
(if ecb-running-xemacs
(setq temp-buffer-shrink-to-fit t)
(temp-buffer-resize-mode 1))
)
;; reset to the original value
(and (get 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit)
(if ecb-running-xemacs
(setq temp-buffer-shrink-to-fit
(cdr (get 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit)))
(temp-buffer-resize-mode
(if (cdr (get 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit))
1
-1))))
(put 'ecb-enable-temp-buffer-shrink-to-fit
'ecb-old-temp-buffer-shrink-to-fit
nil)))
(defcustom ecb-compile-window-height nil
"*Height of the persistent compilation-window of ECB.
If you want a compilation window shown at the bottom of the ECB-layout
then set here the height of it \(Default is a height of 5). If you redraw the
current layout with `ecb-redraw-layout' then the compilation window (if any)
has the height you set here. If the number is less than 1.0 the height is a
fraction of the frame height.
If you do not set a persistent compilation window then doing a compilation or
displaying temp-buffers \(e.g. *Help*-buffers) splits temporally the edit
window vertically if the edit window is not splitted already or uses another
edit window temporally for compilation output if the edit window is already
splitted. This is the recommended value for this option because this is the
standard-behavior of Emacs.
Beware: If you set a persistent compilation window then ECB displays all buffers
for which `ecb-compilation-buffer-p' returns not nil in that persistent
compilation window. If a buffer which should being displayed there is not
displayed there then try to modify the options `ecb-compilation-buffer-names',
`ecb-compilation-major-modes' or `ecb-compilation-predicates' \(in this
sequence).
See also the options `ecb-compile-window-temporally-enlarge' and
`ecb-enlarged-compilation-window-max-height' and also the command
`ecb-toggle-compile-window-height'!
ECB offers the functionality of such a persistent compile-window regardless if
the special ECB-windows are visible or not \(see the command
`ecb-toggle-ecb-windows').
Regardless of the settings you define here: If you have destroyed or
changed the ECB-screen-layout by any action you can always go back to this
layout with `ecb-redraw-layout'"
:group 'ecb-compilation
:group 'ecb-most-important
:initialize 'custom-initialize-default
;; we can not use here `ecb-layout-option-set-function' because here we
;; must call `ecb-redraw-layout-full' with NO-ECB-WINDOWS depending on the
;; value of `ecb-windows-hidden-state'! Same for `ecb-compile-window-width'. If
;; this is necessary for other options too then we should
;; `ecb-layout-option-set-function' to a function with an additional
;; parameter which decides if ecb-window-hidden should be used for
;; NO-ECB-WINDOWS or not.
:set (function (lambda (symbol value)
;; Emacs < 22 has some bugs concerning `windows-size-fixed'
;; so we must disable window-fixing.
(and (not ecb-running-gnu-emacs-version-22) (ecb-set-window-size-fixed nil))
(set symbol value)
;; we must check this because otherwise the layout would be
;; drawn if we have changed the initial value regardless if
;; ECB is activated or not.
(when (and (boundp 'ecb-minor-mode)
ecb-minor-mode
(frame-live-p ecb-frame))
(ecb-enable-temp-buffer-shrink-to-fit value)
(let ((curr-frame (selected-frame)))
(unwind-protect
(progn
(select-frame ecb-frame)
(ecb-redraw-layout-full nil nil nil
ecb-windows-hidden-state))
(select-frame curr-frame))))))
:type '(radio (const :tag "No compilation window" nil)
(number :tag "Window height" :value 6)))
(defcustom ecb-compile-window-width 'frame
"*Width of the compile-window.
Possible values are 'frame and 'edit-window.
With 'frame the compile-window looks like:
-------------------------------------------------------
| | |
| Directories | |
| | |
|--------------| edit-window(s) |
| | |
| Methods | |
| | |
-------------------------------------------------------
| |
| Compilation |
| |
-------------------------------------------------------
With 'edit-window the compile-window looks like:
-------------------------------------------------------
| | |
| Directories | |
| | |
|--------------| edit-window(s) |
| | |
| Methods | |
| | |
| |---------------------------------------
| | |
| | Compilation |
| | |
-------------------------------------------------------
This option takes only effect if `ecb-compile-window-height' is not nil!"
:group 'ecb-compilation
:group 'ecb-most-important
:initialize 'custom-initialize-default
:set (function (lambda (symbol value)
;; Emacs < 22 has some bugs concerning `windows-size-fixed'
;; so we must disable window-fixing.
(and (not ecb-running-gnu-emacs-version-22) (ecb-set-window-size-fixed nil))
(set symbol value)
;; we must check this because otherwise the layout would be
;; drawn if we have changed the initial value regardless if
;; ECB is activated or not.
(when (and (boundp 'ecb-minor-mode)
ecb-minor-mode
(frame-live-p ecb-frame))
(let ((curr-frame (selected-frame)))
(unwind-protect
(progn
(select-frame ecb-frame)
(ecb-redraw-layout-full nil nil nil
ecb-windows-hidden-state))
(select-frame curr-frame))))))
:type '(radio (const :tag "Width of ECB-frame" :value frame)
(const :tag "Width of edit-window" :value edit-window)))
(defcustom ecb-change-layout-preserves-compwin-state t
"*Changing the layout preserves the state of the compile-window.
This is for example useful if the user toggles between several layouts \(see
`ecb-toggle-layout') and wants to preserve the hidden-state of the
compile-window."
:group 'ecb-compilation
:type 'boolean)
(defcustom ecb-compile-window-temporally-enlarge 'after-display
"*Let Emacs temporally enlarge the compile-window of the ECB-layout.
This option has only an effect if `ecb-compile-window-height' is not nil!
The following values are possible:
- 'after-display: After displaying a \"compilation-buffer\" \(in the sense of
`ecb-compilation-buffer-p'!) in the compile-window of ECB. For the max.
height of the enlarged compile-window see the option
`ecb-enlarged-compilation-window-max-height'.
- 'after-selection: selecting the `ecb-compile-window' auto. enlarges it and
de-selecting \(means leaving `ecb-compile-window') auto. shrinks it.
Enlarging and shrinking the `ecb-compile-window' is done with
`ecb-toggle-compile-window-height'. See also the documentation of this
function!
- 'both: The combination of 'after-display and 'after-selection.
- nil: ECB fixes always the height of the `ecb-compile-window' at the value of
`ecb-compile-window-height'.
To restore the ECB-layout after such a buffer-enlarge just call
`ecb-toggle-compile-window-height' or `ecb-redraw-layout'."
:group 'ecb-compilation
:type '(radio (const :tag "After displaying a buffer in the compile-window"
:value after-display)
(const :tag "After selecting the compile window"
:value after-selection)
(const :tag "Both of them" :value both)
(const :tag "Never" :value nil)))
(defcustom ecb-maximize-ecb-window-after-selection nil
"*If not nil maximize current tree-window after selection.
When selecting another not-tree-window after such an automatic maximizing all
tree-windows of current layout are displayed again. But a tree-window is not
maximized if either a node has been selected via primary- oder secondarc
mouse-button or the popup-menu of that tree-buffer has been opened."
:group 'ecb-layout
:type 'boolean)
(defcustom ecb-maximize-next-after-maximized-select nil
"*Maximizes the next logical tree-window after a maximized node-selection.
Selecting a node in a maximized tree-window is handled very smart by ECB:
If a tree-buffer-name is not contained in this option then selecting a node in
this maximized tree-buffer automatically \"minimizes\" that tree-window \(i.e.
displays all windows of the current layout) so the user can perform the next
logical step \(e.g. the next logical step after selecting a directory in the
directories-buffer is to select a source-file - therefore the sources-buffer
of current layout has to be displayed - if the current layout contains one;
the next logical step of selecting a source-file is probably to jump to a
certain tag via the methods-buffer).
If a tree-buffer-name is contained in this option then selecting a node in
this tree-buffer automatically maximizes the next logical tree-window \(e.g.
directories --> sources, sources/history --> methods). But if the current
maximized tree-buffer is also contained in the option
`ecb-tree-do-not-leave-window-after-select' \(see also the tree-buffer-command
`ecb-toggle-do-not-leave-window-after-select' which is bound to `C-t' in each
tree-buffer) then ECB does *not* maximize the next logical tree-window but
point stays in the currently maximized tree-buffer so for example the user can
select more than one node \(e.g. more than one source-file from the
sources-buffer.
The tree-buffer-name can either be defined as plain string or with a symbol
which contains the buffer-name as value. The latter one is recommended for the
builtin ECB-tree-buffers because then simply the related option-symbol can be
used \(e.g. `ecb-directories-buffer-name', `ecb-sources-buffer-name' or
`ecb-history-buffer-name').
In future versions this option will probably also allow to define the next
logical tree-buffer for a tree-buffer - currently this is hard-coded as
follows:
- directories --next-logical--> sources
- sources --next-logical--> methods
- history --next-logical--> methods."
:group 'ecb-layout
:type '(repeat (choice :menu-tag "Buffer-name"
(string :tag "Buffer-name as string")
(symbol :tag "Symbol holding buffer-name"))))
;; A value of never makes no sense because it is not much effort to prevent
;; all interactive shrinking commands (incl. mouse-commands) from shrinking it
;; below ecb-compile-window-height and it is also not worth. IMHO preventing
;; in non-interactive calls and allowing interactively is the best choice.
;; Allowing always is also possible and easy to implement.
(defcustom ecb-compile-window-prevent-shrink-below-height t
"*Allow the compile-window to be shrunken below its height.
A non nil value means ECB prevents the compile-window from being shrunken
below the threshold of `ecb-compile-window-height' by displaying temp-buffers
\(e.g. *Help* etc.) or after running compilations or greps. But interactively
it is always allowed to shrink it to every height!
If nil then ECB does nothing to prevent being shrunken below the value of
`ecb-compile-window-height'.
Default is t."
:group 'ecb-compilation
:type 'boolean)
(defcustom ecb-enlarged-compilation-window-max-height 'best
"*The max height of the compile-window after enlarging it.
The max height of the compilation window after enlarged by
`ecb-toggle-compile-window-height'. The following values are allowed:
'best:
ECB fits the height of the compile-window exactly to the size of its current
contents but never shrinks below the value of `ecb-compile-window-height' or
enlarges over the half of the frame-height of the ECB-frame. The values of the
options `compilation-window-height' and `temp-buffer-max-height' are taken
into account dependent of the current `major-mode' of the buffer in the
compile-window: If `compilation-mode' then `compilation-window-height' is used
otherwise `temp-buffer-max-height'.
'half:
1/2 the frame-height of the ECB-frame
Any number:
Max height in lines. If the number is less than 1.0 the height is a fraction
of the frame height \(e.g. 0.33 results in a max-height of 1/3 the
frame-height)."
:group 'ecb-compilation
:type '(radio (const :tag "Compute best height"
:value best)
(const :tag "1/2 the frame height)"
:value half)
(number :tag "Height" :value 0.3)))
(defcustom ecb-scroll-other-window-scrolls-compile-window nil
"*`scroll-other-window' scrolls always the compile-window.
For all details about the scroll-behavior of `scroll-other-window' see the
advice documentation of `other-window-for-scrolling'."
:group 'ecb-compilation
:type 'boolean)
(defcustom ecb-ignore-special-display 'compile-window
"*Ignore special-display-handling.
This means, that all values of `special-display-function',
`special-display-buffer-names' and `special-display-regexps' are ignored
- only when persistent compile window is used - i.e. if
`ecb-compile-window-height' is not nil - this is the default value.
- always when ECB is active - that means no special-display-handling of
buffers when ECB is active
- never, i.e. special-dislay-handling depends on the values of the options
`special-display-function', `special-display-buffer-names' and
`special-display-regexps'."
:group 'ecb-layout
:type '(radio (const :tag "When a persistent compile-window is used"
:value compile-window)
(const :tag "Always" :value always)
(const :tag "Never" nil)))
(defsubst ecb-ignore-special-display ()
(or (equal ecb-ignore-special-display 'always)
(and (equal ecb-ignore-special-display 'compile-window)
ecb-compile-window-height)))
(defcustom ecb-ignore-pop-up-frames 'compile-window
"*Ignore setting of option `pop-up-frames'.
This means, that a value of not nil for `pop-up-frames' is ignored
- only when persistent compile window is used - i.e. if
`ecb-compile-window-height' is not nil - this is the default value.
- always when ECB is active - that means no pop-up-frames when ECB is active
- never, i.e. pop-up-frames is fully active when set."
:group 'ecb-layout
:type '(radio (const :tag "When a persistent compile-window is used"
:value compile-window)
(const :tag "Always" :value always)
(const :tag "Never" nil)))
(defsubst ecb-ignore-pop-up-frames ()
(or (equal ecb-ignore-pop-up-frames 'always)
(and (equal ecb-ignore-pop-up-frames 'compile-window)
ecb-compile-window-height)))
(defcustom ecb-ignore-display-buffer-function 'always
"*Adviced `display-buffer' ignores `display-buffer-function'.
This means, that the adviced version of `display-buffer' ignores the value of
`display-buffer-function' when called for the `ecb-frame'. If this variable
should not be ignored then the function of `display-buffer-function' is
completely responsible which window is used for the buffer to display - no
smart ECB-logic will help to deal best with the ECB-window-layout! You can
define if and when `display-buffer-function' should be ignored:
- only when persistent compile window is used - i.e. if
`ecb-compile-window-height' is not nil
- always when ECB is active - that means ignore when ECB is active otherwise
not - this is the default value
- never, the adviced version of `display-buffer' always uses the value of
`display-buffer-function' if the value is a function."
:group 'ecb-layout
:type '(radio (const :tag "When a persistent compile-window is used"
:value compile-window)
(const :tag "Always" :value always)
(const :tag "Never" nil)))
(defsubst ecb-ignore-display-buffer-function ()
(or (equal ecb-ignore-display-buffer-function 'always)
(and (equal ecb-ignore-display-buffer-function 'compile-window)
ecb-compile-window-height)))
(defcustom ecb-split-edit-window-after-start 'before-deactivation
"*Sets how and if the edit window should be splitted after ECB-start.
But be aware: This option determines only if and how the edit-window should be
splitted at start-time of ECB. There are five different values allowed for
this option:
- nil: Do not split the edit-area of ECB after activation, i.e. there will be
only one edit-window after starting ECB.
- 'horizontal: Split the edit-area in 2 edit-windows side by side.
- 'vertical: Split the edit-area in 2 edit-windows, one above the other.
- 'before-activation: Split the edit-area as before the ECB-start, i.e. the
edit-area will have after start a window-layout as the whole frame had
before the start of ECB.
- 'before-deactivation: Split the edit-area into a window-layout ECB had in
its edit-area direct before the ECB-deactivation. This value preserves the
full state between activations of ECB, i.e. the visibility of the
ECB-windows, the visibility of a compile-window and also the full
split-state of the edit-area. But this can only be done if important
layout-options have not been changed in the meanwhile. These are the options
`ecb-layout-name', `ecb-compile-window-height', `ecb-compile-window-width',
`ecb-windows-width' and `ecb-windows-height'.
Default value is 'before-deactivation.
Some remarks to the value 'before-activation: If this value has been set then
ECB needs four permanent adivces even when ECB is deactivated: `split-window',
`delete-window', `delete-other-windows' and `set-window-configuration'. But
these advices do not change any behavior of these functions but only storing
in an internal ECB-variable the facts that a window has been splitted or
deleted etc. In addition to this these advices are 100% error-save, means the
functionality of the original functions will be performed in every\(!) case
even if within the advice an error occurs \(but normally there can no errors
occur in these advices because they are very simple). Conclusion: If you want
really all ECB-advices being disabled after deactivating ECB then you have to
set this option to other values then 'before-activation. But setting this
variable to this value is really completely save."
:group 'ecb-layout
:type '(radio (const :tag "Split as before ECB-start"
:value before-activation)
(const :tag "Split as before last ECB-deactivation"
:value before-deactivation)
(const :tag "Split horizontally"
:value horizontal)
(const :tag "Split vertically"
:value vertical)
(const :tag "Do not split"
:value nil)))
(defcustom ecb-windows-width 0.33
"*The width of the ECB windows in columns for left- and right layouts.
If the number is less than 1.0 the width is a fraction of the frame width."
:group 'ecb-layout
:initialize 'custom-initialize-default
:set ecb-layout-option-set-function
:type 'number)
(defcustom ecb-windows-height 0.33
"*The height of the ECB windows in lines for top layouts.
If the number is less than 1.0 the width is a fraction of the frame height."
:group 'ecb-layout
:initialize 'custom-initialize-default
:set ecb-layout-option-set-function
:type 'number)
(defcustom ecb-fix-window-size nil
"*Fix size of the ECB-windows/buffers even after frame-resizing.
The fix type \(valid values are nil, t, width and height) can either be set on
a layout-basis \(means a different value for each layout) or one value can be
set for all layouts. For the latter case there is an additional value 'auto
which choose autom. the senseful fix-type depending on the current
layout-type: For top-layouts the fix-type 'height and for all other
layout-types the fix-type 'width.
For a detailed description of the valid values see documentation of
`window-size-fixed' which is newly introduced in GNU Emacs 21 and is only
available there. Therefore this option takes only effect with GNU Emacs >= 21.
This option has no effect with XEmacs because it does not support the feature
`window-size-fixed'.
Note1: Manually resizing the ECB-windows via `enlarge-window',
`shrink-window', `mouse-drag-vertical-line' and `mouse-drag-mode-line' is
still possible even if the window-sizes are fixed for frame-resizing!
Note2: The description of `window-size-fixed' in the elisp-info-manual is more
detailed than the description offered by \[C-h v]!
Note3: With Emacs < 22 there seems to be no distinction between 'width,
'height and t. Therefore this option takes no effect \(means all ecb-windows
have always unfixed sizes) with Emacs < 22 if `ecb-compile-window-height' is
not nil.
Per default no window-size fixing has been done."
:group 'ecb-directories
:initialize 'custom-initialize-default
:set (function (lambda (sym value)
(set sym value)
(ecb-set-window-size-fixed
(ecb-get-window-fix-type ecb-layout-name))))
:type '(radio (choice :tag "Fix type for all layouts"
:menu-tag "Fix type for all layouts"
(const :tag "Automatic" :value auto)
(const :tag "Fix only width" :value width)
(const :tag "Fix only height" :value height)
(const :tag "Fix both" :value t)
(const :tag "No fixing" :value nil))
(repeat :tag "With these layouts"
(cons (string :tag "Layout name")
(choice :tag "Fix type"
:menu-tag "Fix type for all layouts"
(const :tag "Fix only width" :value width)
(const :tag "Fix only height" :value height)
(const :tag "Fix both" :value t)
(const :tag "No fixing" :value nil))))))
(defun ecb-get-window-fix-type (layout-name)
"Determine which value of `window-size-fixed' we must set in all ecb-buffers
of layout LAYOUT-NAME."
(if (symbolp ecb-fix-window-size)
(if (equal ecb-fix-window-size 'auto)
(if (equal (ecb-get-layout-type ecb-layout-name) 'top)
'height
'width)
ecb-fix-window-size)
(cdr (assoc layout-name ecb-fix-window-size))))
(defun ecb-set-window-size-fixed (fix)
"Set the buffer-local value of `window-size-fixed' in each visible
ecb-window to FIX. For Emacs < 22: If `ecb-compile-window-height' is not nil
then set always nil!"
(unless ecb-running-xemacs
(let ((l (ecb-canonical-ecb-windows-list)))
(dolist (w l)
(with-current-buffer (window-buffer w)
(setq window-size-fixed (if (and (not ecb-running-gnu-emacs-version-22)
ecb-compile-window-height)
nil
fix)))))))
(defmacro ecb-do-with-unfixed-ecb-buffers (&rest body)
"Evaluate BODY with unfixed size of all current-visible ecb-buffers and
ensure that at the end \(either after finishing of BODY or after an error
occurs during BODY) all now current visible ecb-buffers get the value of their
buffer-local `window-size-fixed' from the setting in `ecb-fix-window-size'."
`(unwind-protect
(progn
(ecb-set-window-size-fixed nil)
,@body)
(ecb-set-window-size-fixed (ecb-get-window-fix-type ecb-layout-name))))
(defmacro ecb-do-with-fixed-ecb-buffers (&rest body)
"Evaluate BODY with fixed size of all current-visible ecb-buffers and
ensure that at the end \(either after finishing of BODY or after an error
occurs during BODY) all now current visible ecb-buffers get the value of their
buffer-local `window-size-fixed' from the setting in `ecb-fix-window-size'."
`(unwind-protect
(progn
(ecb-set-window-size-fixed t)
,@body)
(ecb-set-window-size-fixed (ecb-get-window-fix-type ecb-layout-name))))
(defcustom ecb-other-window-behavior 'smart
"*The behavior of ECB concerning getting an \"other window\".
The following settings are possible:
'all:
ECB will cycle through all windows of the ECB-frame or scroll simply
the next window in the ECB-frame, means it behaves like the original
`other-window' rsp. the original `other-window-for-scrolling'.
'only-edit:
ECB will only cycle through the edit-windows of ECB or only
scroll another edit-window. If the selected window is not an edit-window
then it behaves like with value 'all.
'edit-and-compile:
Like 'only-edit plus the compile window if any. If the
selected window is neither an edit-window nor the compile-window then it
behaves like with value 'all.
'smart:
With this setting ECB tries to choose the `other-window'-destination or the
\"other window\" to scroll in a smart and intuitive way: If point is in one of
the edit-windows and if the edit-area is splitted then always the \"next\"
edit-window is choosen \(whereas the next edit-window of the last edit-window
is the first edit-window)- if the edit-area is unsplitted then the
compile-window is used if there is one. In the context of an
`other-window'-call the ARG of `other-window' will be taken into account.
If one of the special ecb-windows is selected then always the \"next\"
ecb-window is choosen \(whereas the next ecb-window of the last ecb-window is
the first ecb-window). In the context of an `other-window'-call the ARG of
`other-window' will be taken into account. If there is only one ecb-window
then ECB considers also the edit-windows!
If the compile-window is selected then always the last selected edit-window
will be used unless `other-window' has been called with a prefix-argument
unequal 1.
If there is an active minibuffer:
Regardless of the allowed values above ECB handles the situation of an active
minibuffer during a call to `other-window' or `scroll-other-window' like
follows:
If the minibuffer-window is selected then ECB always chooses the window
`minibuffer-scroll-window' points to \(when this variable is set, otherwise
the compile-window or the last selected edit-window is choosen) when the
called command is called to choose the 1. next window \(always true for
scrolling another window or true when `other-window' called without prefix-arg
or with prefix-arg equal 1). Otherwise the window ARG steps away is choosen
\(in case of `other-window).
If there is an active minibuffer but the minibuffer-window is not selected
then `other-window' and `scroll-other-window' behave like the original
version.
In addition to the allowed values above the value of this option can also be a
function:
This function gets seven arguments:
1. A canonical list of all currently visible windows of the `ecb-frame'
2. A canonical list of all currently visible edit-windows
3. A canonical list of all currently visible ecb-windows
4. The window-object of the compile-window if there is any.
5. The minibuffer-window of the ECB-frame if there is an active minibuffer.
5. The result of the function `ecb-where-is-point' - see the documentation
of this function for details.
6. An integer which indicates how many steps away from the current selected
window the \"other-window\ is. Is nil when this function is called in
another context then for `other-window'.
The function has to return a window-object which is then used as \"other
window\" for the command `other-window' or for scrolling another window
\(e.g. with `scroll-other-window').
This function has to handle all properly situations for itself.
`ecb-get-other-window-smart' is an example for such a function."
:group 'ecb-layout
:group 'ecb-most-important
:type '(radio (const :tag "Smart" :value smart)
(const :tag "All windows" all)
(const :tag "Only edit windows" only-edit)
(const :tag "Edit + compile window" edit-and-compile)
(function :tag "User defined" :value ignore)))
(defcustom ecb-advice-window-functions-signal-error nil
"*Signal an error if an adviced function can not do its job.
If not nil then an error is signaled if one of the adviced functions can not
do its job. So for example if the user tries to split the compile-window or an
ecb-tree-window or if one tries to switch to another buffer in one of the
ecb-tree-windows. For details see the documentation of each of the adviced
functions to get info when an error is signaled.
If this option is nil then no error is signaled but the called adviced
function does simply nothing.
Default is nil but it can also be useful to signal errors - so you see when
call a function in a situation which is not supported by this function."
:group 'ecb-layout
:type 'boolean)
(defcustom ecb-layout-always-operate-in-edit-window
'(switch-to-buffer)
"*Adviced window functions work always in the edit-window.
If we are in an ECB special buffer (methods, directories, etc), and any of the
adviced windowing functions is called interactively, we will select first an
edit-window according to the value of `ecb-mouse-click-destination'. This is
useful if you have any functions that use such functions and you don't want
them to fail with an error complaining that the current buffer can not be
split, or something similar.
Because this may not be desirable in all situations and for all adviced
functions this can be enabled separately for function where it is senseful. If
the symbol of an adviced function is contained in the value of this option,
then the edit-window is first selected otherwise either an error is reported
or some other special reaction (depends on
`ecb-advice-window-functions-signal-error'); see the documentation of the
adviced functions for this.
Per default this is only enabled for `switch-to-buffer'."
:group 'ecb-layout
:type '(set (const :tag "delete-window"
:value delete-window)
(const :tag "delete-other-windows"
:value delete-other-windows)
(const :tag "split-window-horizontally"
:value split-window-horizontally)
(const :tag "split-window-vertically"
:value split-window-vertically)
(const :tag "split-window"
:value split-window)
(const :tag "display-buffer"
:value display-buffer)
(const :tag "switch-to-buffer"
:value switch-to-buffer)))
(defcustom ecb-layout-window-sizes nil
"*Specifies the sizes of the ECB windows for each layout.
The easiest way \(and also the very strongly recommended way) to set this
option is to change the window sizes by dragging the window borders using
the mouse and then store the window sizes by calling the command
`ecb-store-window-sizes'. Next time the layout is redrawn the values stored in
this option will be used.
If `ecb-store-window-sizes' is used then the windows sizes are stored per
default as fractions of current frame-width and -height of the ecb-frame, so
the stored values will \"work\" for other frame sizes too. But if you call
`ecb-store-window-sizes' with a prefix-argument then the fixed values of
current width and height are stored!
If this option is set \"by hand\" \(i.e. not by `ecb-store-window-sizes') then
the following is important:
- Use always `customize-option', never `setq'!
- It is recommended to use fractions of frame-width and -height!.
- It is also recommended to use buffer-name-symbols instead of plain
buffer-names \(e.g. ecb-history-buffer-name instead of \" *ECB History*\")
- There must be an entry for each special ecb-buffer of that layout for which
the sizes are stored.
- The order of the sequence of the inserted window sizes doesn't matter
because each size-pair is assigned to a buffer-name the sizes belong to."
:group 'ecb-layout
:initialize 'custom-initialize-default
:set ecb-layout-option-set-function
:type '(repeat (cons :tag "Window layout"
(string :tag "Layout name")
(repeat :tag "Window sizes"
(cons (choice :tag "Buffer-name" :menu-tag "Buffer-name"
(string :tag "Buffer-name as string")
(symbol :tag "Symbol containing buffer-name"))
(cons (choice :tag "Width"
:menu-tag "Width"
(const :tag "Default value"
:value nil)
(number :tag "Custom size"))
(choice :tag "Height"
:menu-tag "Height"
(const :tag "Default value"
:value nil)
(number :tag "Custom size"))))))))
(defcustom ecb-redraw-layout-quickly nil
"If non-nil, we will attempt to redraw the layout quickly.
Please read also carefully the documentation of `ecb-redraw-layout'."
:type 'boolean
:group 'ecb-layout)