Mercurial > hg > octave-nkf
annotate libgui/src/octave-adapter/octave-link.h @ 15388:24b5348d38e7
merge event_accepted and event_reject into a single function
* history-dockwidget.cc, history-dockwidget.h
(history_dock_widget::handle_event): New function from merging
history_dock_widget::event_accepted and
history_dock_widget::event_reject into single fucntion with argument.
* file-editor-tab.cc, file-editor-tab.h
(file_editor_tab::handle_event): Likewise.
* main-window.cc, main-window.h (main_window::handle_event):
Likewise.
* octave-event-observer.h (octave_event_observer::handle_event):
New pure virtual function.
(octave_event_observer::event_accepted,
octave_event_observer::event_reject): Delete.
* octave_link.cc, octave-link.h (octave_link::handle_event): Likewise.
* workspace-model.cc, workspace-model.h
(workspace_model::handle_event): Likewise.
* octave-link.cc (octave_link::do_process_events): Call
octave_event::handle_event with the return value from
octave_event::perform instead of calling octave_event::accept and
octave_event::reject.
* octave-event.h (octave_event:handle_event): New function.
(octave_event::accept, octave_event::reject): Delete.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 14 Sep 2012 11:14:27 -0400 |
parents | eec0d1fcba4f |
children | 7f423c6111c6 |
rev | line source |
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1 /* |
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2 |
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3 Copyright (C) 2011-2012 Jacob Dawid |
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4 Copyright (C) 2011-2012 John P. Swensen |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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24 #ifndef OCTAVELINK_H | |
25 #define OCTAVELINK_H | |
26 | |
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27 #include <queue> |
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28 #include <string> |
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30 class octave_mutex; |
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32 #include "octave-main-thread.h" |
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33 #include "octave-event.h" |
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34 #include "octave-event-observer.h" |
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35 #include "octave-event-listener.h" |
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36 |
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37 // \class OctaveLink |
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38 // \brief Provides threadsafe access to octave. |
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39 // \author Jacob Dawid |
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40 // |
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41 // This class is a wrapper around octave and provides thread safety by |
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42 // buffering access operations to octave and executing them in the |
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43 // readline event hook, which lives in the octave thread. |
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44 |
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45 class octave_link : public octave_event_observer |
13501 | 46 { |
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47 protected: |
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48 |
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49 octave_link (void); |
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50 |
13501 | 51 public: |
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52 |
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53 ~octave_link (void) { } |
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54 |
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55 static void launch_octave (void) |
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56 { |
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57 if (instance_ok ()) |
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58 instance->do_launch_octave (); |
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59 } |
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60 |
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61 static void register_event_listener (octave_event_listener *el) |
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62 { |
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63 if (instance_ok ()) |
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64 instance->do_register_event_listener (el); |
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65 } |
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66 |
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67 static void generate_events (void) |
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68 { |
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69 if (instance_ok ()) |
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70 instance->do_generate_events (); |
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71 } |
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72 |
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73 static void process_events (void) |
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74 { |
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75 if (instance_ok ()) |
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76 instance->do_process_events (); |
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77 } |
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78 |
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79 static void post_event (octave_event *e) |
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80 { |
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81 if (instance_ok ()) |
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82 instance->do_post_event (e); |
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83 } |
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84 |
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85 static void about_to_exit (void) |
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86 { |
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87 if (instance_ok ()) |
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88 instance->do_about_to_exit (); |
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89 } |
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90 |
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91 static void entered_readline_hook (void) |
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92 { |
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93 if (instance_ok ()) |
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94 instance->do_entered_readline_hook (); |
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95 } |
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96 |
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97 static void finished_readline_hook (void) |
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98 { |
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99 if (instance_ok ()) |
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100 instance->do_finished_readline_hook (); |
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101 } |
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102 |
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103 static std::string last_working_directory (void) |
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104 { |
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105 return instance_ok () |
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106 ? instance->do_last_working_directory () : std::string (); |
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107 } |
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108 |
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109 private: |
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110 |
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111 static octave_link *instance; |
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112 |
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113 static void cleanup_instance (void) { delete instance; instance = 0; } |
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114 |
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115 // No copying! |
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116 |
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117 octave_link (const octave_link&); |
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118 |
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119 octave_link& operator = (const octave_link&); |
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120 |
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121 static bool instance_ok (void); |
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122 |
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123 octave_event_listener *event_listener; |
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124 |
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125 // Thread running octave_main. |
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126 octave_main_thread *main_thread; |
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127 |
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128 // Semaphore to lock access to the event queue. |
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129 octave_mutex *event_queue_mutex; |
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130 |
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131 // Buffer for queueing events until they will be processed. |
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132 std::queue <octave_event *> event_queue; |
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133 |
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134 // Stores the last known current working directory of octave. |
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135 std::string last_cwd; |
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136 |
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137 bool debugging; |
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138 |
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139 void do_launch_octave (void); |
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140 void do_register_event_listener (octave_event_listener *oel); |
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141 |
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142 void do_generate_events (void); |
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143 void do_process_events (void); |
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144 void do_post_event (octave_event *e); |
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145 |
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146 void do_about_to_exit (void); |
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147 |
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148 void do_entered_readline_hook (void) { } |
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149 void do_finished_readline_hook (void) { } |
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150 |
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151 std::string do_last_working_directory (void); |
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152 |
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153 void handle_event (octave_event *e, bool accept); |
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154 }; |
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155 |
13501 | 156 #endif // OCTAVELINK_H |