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annotate scripts/plot/appearance/orient.m @ 19840:c5270263d466 gui-release

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author John W. Eaton <jwe@octave.org>
date Fri, 30 Jan 2015 17:41:50 -0500
parents 446c46af4b42
children 4197fc428c7d
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d63878346099 maint: Update copyright notices for release.
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1 ## Copyright (C) 2001-2013 Paul Kienzle
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} orient (@var{orientation})
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21 ## @deftypefnx {Function File} {} orient (@var{hfig}, @var{orientation})
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22 ## @deftypefnx {Function File} {@var{orientation} =} orient ()
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23 ## @deftypefnx {Function File} {@var{orientation} =} orient (@var{hfig})
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24 ## Query or set the print orientation for figure @var{hfig}.
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25 ##
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26 ## Valid values for @var{orientation} are @qcode{"portrait"},
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27 ## @qcode{"landscape"}, and @qcode{"tall"}.
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28 ##
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29 ## The @qcode{"landscape"} option changes the orientation so the plot width
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30 ## is larger than the plot height. The @qcode{"paperposition"} is also
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31 ## modified so that the plot fills the page, while leaving a 0.25 inch border.
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32 ##
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33 ## The @qcode{"tall"} option sets the orientation to @qcode{"portrait"} and
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34 ## fills the page with the plot, while leaving a 0.25 inch border.
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35 ##
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36 ## The @qcode{"portrait"} option (default) changes the orientation so the plot
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37 ## height is larger than the plot width. It also restores the default
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38 ## @qcode{"paperposition"} property.
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39 ##
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40 ## When called with no arguments, return the current print orientation.
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41 ##
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42 ## If the argument @var{hfig} is omitted, then operate on the current figure
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43 ## returned by @code{gcf}.
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44 ## @seealso{print, saveas}
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45 ## @end deftypefn
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46
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47 ## Author: Paul Kienzle
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48 ## Adapted-By: jwe
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49
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50 function retval = orient (varargin)
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51
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52 nargs = nargin;
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53
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54 if (nargs > 0 && numel (varargin{1}) == 1 && isfigure (varargin{1}))
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55 cf = varargin{1};
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56 varargin(1) = [];
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57 nargs--;
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58 else
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59 cf = gcf ();
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60 endif
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61
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62 if (nargs > 1)
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63 print_usage ();
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64 endif
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65
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66 paperunits = get (cf, "paperunits");
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67 unwind_protect
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68 set (cf, "paperunits", "inches"); # All Matlab calculations assume inches.
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69
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70 if (nargs == 0)
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71 retval = get (cf, "paperorientation");
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72 if (strcmp (retval, "portrait"))
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73 papersize = get (cf, "papersize");
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74 paperposition = get (cf, "paperposition");
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75 if (paperposition == [0.25 0.25 (papersize - 0.5)])
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76 retval = "tall";
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77 endif
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78 endif
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79 else
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80 orientation = varargin{1};
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81 if (strcmpi (orientation, "landscape")
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82 || strcmpi (orientation, "portrait"))
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83 if (! strcmpi (get (cf, "paperorientation"), orientation))
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84 ## FIXME: with the proper listeners in place there won't be a need to
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85 ## set the papersize and paperposition here.
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86 papersize = get (cf, "papersize");
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87 paperposition = get (cf, "paperposition");
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88 set (cf, "paperorientation", orientation);
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89 set (cf, "papersize", papersize([2, 1]));
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90 set (cf, "paperposition", paperposition([2, 1, 4, 3]));
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91 endif
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92 if (strcmpi (orientation, "portrait"))
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93 ## portrait restores the default
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94 ## FIXME: Should use "default" here, but Octave complains
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95 ## that "paperposition" is not a default property.
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96 set (cf, "paperposition", "factory");
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97 else
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98 ## landscape also sets the plot to occupy the entire page
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99 papersize = get (cf, "papersize");
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100 set (cf, "paperposition", [0.25, 0.25, (papersize - 0.5)]);
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101 endif
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102 elseif (strcmpi (varargin{1}, "tall"))
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103 orient ("portrait");
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104 papersize = get (cf, "papersize");
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105 set (cf, "paperposition", [0.25, 0.25, (papersize - 0.5)]);
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106 else
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107 error ("orient: unknown ORIENTATION");
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108 endif
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109 endif
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110
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111 unwind_protect_cleanup
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112 set (cf, "paperunits", paperunits);
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113 end_unwind_protect
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114
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115 endfunction
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116
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117
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118 %!shared papersize, paperposition, fullpaperposition, hfig
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119 %! papersize = [8.5, 11];
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120 %! paperposition = [0.25, 2.5, 8, 6];
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121 %! fullpaperposition = [0.25, 0.25, (papersize-0.5)];
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122 %! hfig = figure ("visible", "off");
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123 %! set (hfig, "paperunits", "inches");
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124 %! set (hfig, "paperorientation", "portrait");
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125 %! set (hfig, "papersize", papersize);
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126 %! set (hfig, "paperposition", paperposition);
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127
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128 %!test
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129 %! orient portrait;
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130 %! assert (orient, "portrait") # default
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131 %! assert (get (hfig, "papersize"), papersize);
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132 %! assert (get (hfig, "paperposition"), paperposition);
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134 %!test
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135 %! orient landscape;
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136 %! assert (orient,"landscape") # change to landscape
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137 %! assert (get (hfig, "papersize"), papersize([2, 1]));
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138 %! assert (get (hfig, "paperposition"), fullpaperposition([1, 2, 4, 3]));
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140 %!test
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141 %! orient portrait # change back to portrait
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142 %! assert (orient, "portrait");
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143 %! assert (get (hfig, "papersize"), papersize);
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144 %! assert (get (hfig, "paperposition"), paperposition);
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145
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146 %!test
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147 %! orient landscape;
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148 %! orient tall;
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149 %! assert (orient, "tall");
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150 %! assert (get (hfig, "papersize"), papersize);
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151 %! assert (get (hfig, "paperposition"), fullpaperposition);
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152
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153 %!test
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154 %! orient portrait # errors don't change the state
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155 %! assert (orient, "portrait");
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156 %! assert (get (hfig, "papersize"), papersize);
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157 %! assert (get (hfig, "paperposition"), paperposition);
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158
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159 %% Test input validation
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160 %!error orient (1.73, 2.5)
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161 %!error <unknown ORIENTATION> orient ("nobody")
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162
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163 %!test
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164 %! close (hfig);
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165