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gui: Use old syntax for connections involving QScintilla. * libgui/src/m-editor/file-editor-tab.cc (file_editor_tab::handle_api_entries_added): Use old syntax for signal-slot connection to avoid connection errors on Windows. Thank you to Torsten for helping with this and the previous change.
author Markus Mützel <markus.muetzel@gmx.de>
date Mon, 17 Jun 2024 19:25:26 +0200
parents 2e484f9f1f18
children
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rev   line source
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2002-2024 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {[@var{img}, @var{map}, @var{alpha}] =} __imread__ (@var{filename})
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28 ## @deftypefnx {} {[@dots{}] =} __imread__ (@var{url})
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29 ## @deftypefnx {} {[@dots{}] =} __imread__ (@dots{}, @var{ext})
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30 ## @deftypefnx {} {[@dots{}] =} __imread__ (@dots{}, @var{idx})
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31 ## @deftypefnx {} {[@dots{}] =} __imread__ (@dots{}, @var{param1}, @var{value1}, @dots{})
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32 ## @deftypefnx {} {@var{info} =} __imread__ (@var{filename})
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33 ##
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34 ## This function does all the work of @code{imread}.
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35 ##
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36 ## It exists here as private function so that @code{imread} can use other
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37 ## functions if @code{imformats} is configured to. It is also needed so that
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38 ## @code{imformats} can create a function handle for it.
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39 ##
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40 ## @seealso{imread}
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41 ## @end deftypefn
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42
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43 function varargout = __imread__ (filename, varargin)
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44
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45 ## keep track of the varargin offset we're looking at each moment
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46 offset = 1;
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47
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48 ## It is possible for a file with multiple pages to have very different
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49 ## images on each page. Specifically, they may have different sizes.
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50 ## Because of this, we need to first find out the index of the images to read
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51 ## so we can set up defaults for things such as PixelRegion later on.
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52 options = struct ("index", 1); # default image index
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53
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54 ## Index is the only option that can be defined without the parameter/value
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55 ## pair style. When defined here, the string "all" is invalid.
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56 ## Also, for Matlab compatibility, if index is defined both as an option here
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57 ## and parameter/value pair, silently ignore the first.
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58 if (nargin >= 2 && ! ischar (varargin{1}))
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59 options.index = varargin{1};
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60 if (! is_valid_index_option (options.index))
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61 error ("imread: IDX must be a numeric vector");
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62 endif
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63 offset = 2;
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64 endif
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65
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66 if (rem (numel (varargin) - offset + 1, 2) != 0)
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67 error ("imread: PARAM/VALUE arguments must occur in pairs");
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68 endif
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69
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70 ## Check for Index/Frames argument
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71 idx = strcmpi ("index", varargin) | strcmpi ("frames", varargin);
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72 if (any (idx))
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73 if (sum (idx) > 1)
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74 error ("imread: Index or Frames may only be specified once");
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75 endif
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76 val = varargin{circshift (idx, 1)};
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77 if (! is_valid_index_option (val) && ! strcmpi (val, "all"))
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78 error ("imread: %s must be a vector or the string 'all'", varargin{idx});
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79 endif
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80 options.index = val;
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81 endif
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82
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83 ## Use information from the first image to be read to set defaults.
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84 if (strcmpi (options.index, "all"))
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85 info = __magick_ping__ (filename, 1);
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86 else
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87 info = __magick_ping__ (filename, options.index(1));
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88 endif
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89
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90 ## Set default for options.
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91 options.region = {1:1:info.rows, 1:1:info.columns};
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92
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93 for idx = offset:2:(numel (varargin) - offset + 1)
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94 switch (lower (varargin{idx}))
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95
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96 case {"frames", "index"}
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97 ## Do nothing. This option was already processed before the loop.
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98
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99 case "pixelregion"
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100 options.region = varargin{idx+1};
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101 if (! iscell (options.region) || numel (options.region) != 2)
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102 error ("imread: %s must be a 2-element cell array",
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103 varargin{idx});
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104 endif
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105 for reg_idx = 1:2
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106 if (numel (options.region{reg_idx}) == 3)
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107 ## do nothing
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108 elseif (numel (options.region{reg_idx}) == 2)
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109 options.region{reg_idx}(3) = options.region{reg_idx}(2);
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110 options.region{reg_idx}(2) = 1;
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111 else
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112 error ("imread: range for %s must be a 2 or 3 element vector",
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113 varargin{idx});
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114 endif
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115 options.region{reg_idx} = floor (options.region{reg_idx}(1)): ...
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116 floor (options.region{reg_idx}(2)): ...
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117 floor (options.region{reg_idx}(3));
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118 endfor
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119 if (options.region{1}(end) > info.rows)
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120 error ("imread: end ROWS for PixelRegions option is larger than image height");
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121 elseif (options.region{2}(end) > info.columns)
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122 error ("imread: end COLS for PixelRegions option is larger than image width");
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123 endif
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124
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125 case "info"
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126 ## We ignore this option. This parameter exists in Matlab to
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127 ## speed up the reading of multipage TIFF by passing a structure
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128 ## that contains information about the start on the file of each
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129 ## page. We can't control it through GraphicsMagic but at least
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130 ## we allow to load multiple pages with one command.
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131
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132 otherwise
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133 error ("imread: invalid PARAMETER '%s'", varargin{idx});
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134
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135 endswitch
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136 endfor
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137
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138 [varargout{1:nargout}] = __magick_read__ (filename, options);
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139
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140 endfunction
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141
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142 ## Test if the value passed to the Index or Frames is valid. This option
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143 ## can be defined in two places, but only in one place can it also be the
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144 ## string "all"
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145 function bool = is_valid_index_option (arg)
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146 bool = isvector (arg) && isnumeric (arg) && isreal (arg);
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147 endfunction