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1 ;; Toolbar support.
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2 ;; Copyright (C) 1995 Board of Trustees, University of Illinois
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3
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4 ;; This file is part of XEmacs.
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5
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6 ;; XEmacs is free software; you can redistribute it and/or modify it
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7 ;; under the terms of the GNU General Public License as published by
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8 ;; the Free Software Foundation; either version 2, or (at your option)
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9 ;; any later version.
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10
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11 ;; XEmacs is distributed in the hope that it will be useful, but
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12 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ;; General Public License for more details.
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15
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16 ;; You should have received a copy of the GNU General Public License
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17 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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18 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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19
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20 ;;; Synched up with: Not in FSF.
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21
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22 (defvar toolbar-help-enabled t
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23 "If non-nil help is echoed for toolbar buttons.")
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24
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25 (defvar toolbar-icon-directory nil
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26 "Location of standard toolbar icon bitmaps.")
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27
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28 (defun toolbar-make-button-list (up &optional down disabled cap-up cap-down cap-disabled)
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29 "Calls make-glyph on each arg and returns a list of the results."
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30 (if (featurep 'x)
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31 (let ((up-glyph (make-glyph up))
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32 (down-glyph (and down (make-glyph down)))
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33 (disabled-glyph (and disabled (make-glyph disabled)))
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34 (cap-up-glyph (and cap-up (make-glyph cap-up)))
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35 (cap-down-glyph (and cap-down (make-glyph cap-down)))
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36 (cap-disabled-glyph (and cap-disabled (make-glyph cap-disabled))))
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37 (if cap-disabled
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38 (list up-glyph down-glyph disabled-glyph
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39 cap-up-glyph cap-down-glyph cap-disabled-glyph)
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40 (if cap-down
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41 (list up-glyph down-glyph disabled-glyph
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42 cap-up-glyph cap-down-glyph)
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43 (if cap-up
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44 (list up-glyph down-glyph disabled-glyph cap-up-glyph)
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45 (if disabled-glyph
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46 (list up-glyph down-glyph disabled-glyph)
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47 (if down-glyph
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48 (list up-glyph down-glyph)
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49 (list up-glyph)))))))
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50 nil))
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51
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52 (defun init-toolbar-location ()
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53 (if (not toolbar-icon-directory)
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54 (setq toolbar-icon-directory
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55 (file-name-as-directory
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56 (expand-file-name "toolbar" data-directory)))))
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57
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58 (defun init-toolbar-from-resources (locale)
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59 (if (and (featurep 'x)
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60 (or (eq locale 'global)
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61 (eq 'x (device-or-frame-type locale)))
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62 (x-init-toolbar-from-resources locale))))
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63
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64
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65 ;; #### Is this actually needed or will the code in
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66 ;; default-mouse-motion-handler suffice?
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67 (define-key global-map 'button1up 'release-toolbar-button)
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68
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69 (defvar toolbar-map (let ((m (make-sparse-keymap)))
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70 (set-keymap-name m 'toolbar-map)
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71 m)
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72 "Keymap consulted for mouse-clicks over a toolbar.")
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73
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74 (define-key toolbar-map 'button1 'press-toolbar-button)
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75 (define-key toolbar-map 'button1up 'release-and-activate-toolbar-button)
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76 (defvar last-pressed-toolbar-button nil)
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77 (defvar toolbar-active nil)
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78
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79 ;;
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80 ;; It really sucks that we also have to tie onto
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81 ;; default-mouse-motion-handler to make sliding buttons work right.
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82 ;;
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83 (defun press-toolbar-button (event)
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84 "Press a toolbar button. This only changes its appearance."
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85 (interactive "_e")
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86 (setq this-command last-command)
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87 (let ((button (event-toolbar-button event)))
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88 ;; We silently ignore non-buttons. This most likely means we are
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89 ;; over a blank part of the toolbar.
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90 (setq toolbar-active t)
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91 (if (toolbar-button-p button)
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92 (progn
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93 (set-toolbar-button-down-flag button t)
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94 (setq last-pressed-toolbar-button button)))))
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95
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96 (defun release-and-activate-toolbar-button (event)
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97 "Release a toolbar button and activate its callback."
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98 (interactive "_e")
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99 (or (button-release-event-p event)
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100 (error "%s must be invoked by a mouse-release" this-command))
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101 (release-toolbar-button event)
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102 (let ((button (event-toolbar-button event)))
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103 (if (and (toolbar-button-p button)
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104 (toolbar-button-enabled-p button)
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105 (toolbar-button-callback button))
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106 (let ((callback (toolbar-button-callback button)))
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107 (setq this-command callback)
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108 (if (symbolp callback)
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109 (call-interactively callback)
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110 (eval callback))))))
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111
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112 ;; If current is not t, then only release the toolbar button stored in
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113 ;; last-pressed-toolbar-button
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114 (defun release-toolbar-button-internal (event current)
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115 (let ((button (event-toolbar-button event)))
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116 (setq zmacs-region-stays t)
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117 (if (and last-pressed-toolbar-button
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118 (not (eq last-pressed-toolbar-button button))
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119 (toolbar-button-p last-pressed-toolbar-button))
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120 (progn
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121 (set-toolbar-button-down-flag last-pressed-toolbar-button nil)
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122 (setq last-pressed-toolbar-button nil)))
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123 (if (and current (toolbar-button-p button))
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124 (set-toolbar-button-down-flag button nil))))
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125
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126 (defun release-toolbar-button (event)
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127 "Release all pressed toolbar buttons."
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128 (interactive "_e")
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129 (or (button-release-event-p event)
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130 (error "%s must be invoked by a mouse-release" this-command))
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131 (release-toolbar-button-internal event t)
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132 ;; Don't set this-command if we're being called
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133 ;; from release-and-activate-toolbar-button.
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134 (if (interactive-p)
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135 (setq this-command last-command))
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136 (setq toolbar-active nil))
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137
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138 (defun release-previous-toolbar-button (event)
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139 (setq zmacs-region-stays t)
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140 (release-toolbar-button-internal event nil))
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141
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