1 | classdef TabPanel < uiextras.CardPanel & uiextras.DecoratedPanel |
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2 | %TabPanel Show one element inside a tabbed panel |
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3 | % |
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4 | % obj = uiextras.TabPanel() creates a panel with tabs along one edge |
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5 | % to allow selection between the different child objects contained. |
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6 | % |
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7 | % obj = uiextras.TabPanel(param,value,...) also sets one or more |
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8 | % property values. |
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9 | % |
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10 | % See the <a href="matlab:doc uiextras.TabPanel">documentation</a> for more detail and the list of properties. |
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11 | % |
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12 | % Examples: |
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13 | % >> f = figure(); |
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14 | % >> p = uiextras.TabPanel( 'Parent', f, 'Padding', 5 ); |
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15 | % >> uicontrol( 'Style', 'frame', 'Parent', p, 'Background', 'r' ); |
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16 | % >> uicontrol( 'Style', 'frame', 'Parent', p, 'Background', 'b' ); |
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17 | % >> uicontrol( 'Style', 'frame', 'Parent', p, 'Background', 'g' ); |
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18 | % >> p.TabNames = {'Red', 'Blue', 'Green'}; |
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19 | % >> p.SelectedChild = 2; |
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20 | % |
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21 | % See also: uiextras.Panel |
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22 | % uiextras.BoxPanel |
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23 | |
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24 | % Copyright 2009-2010 The MathWorks, Inc. |
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25 | % 1.1 |
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26 | % 2012/05/08 08:02:58 |
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27 | |
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28 | properties |
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29 | TabSize = 50 |
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30 | TabPosition = 'top' % which side of the contents to put the tabs [top|bottom] |
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31 | end % public properties |
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32 | |
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33 | properties( Dependent = true ) |
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34 | TabNames % The title string for each tab |
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35 | TabEnable = {} % The enable state of individual tabs |
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36 | end % dependent properties |
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37 | |
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38 | properties( SetAccess = private, GetAccess = private, Hidden = true ) |
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39 | Images_ = struct() |
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40 | TabImage_ = [] |
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41 | PageLabels = [] |
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42 | PageEnable_ = {} |
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43 | end % private properties |
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44 | |
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45 | |
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46 | methods |
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47 | |
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48 | function obj = TabPanel(varargin) |
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49 | % First step is to create the parent class. We pass the |
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50 | % arguments (if any) just incase the parent needs setting |
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51 | obj = obj@uiextras.CardPanel( varargin{:} ); |
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52 | obj = obj@uiextras.DecoratedPanel( varargin{:} ); |
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53 | |
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54 | % Get some defaults |
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55 | bgcol = obj.BackgroundColor; |
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56 | obj.HighlightColor = ( 2*[1 1 1] + bgcol )/3; |
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57 | obj.ShadowColor = 0.5*bgcol; |
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58 | |
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59 | % Add a UIControl for drawing the tabs |
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60 | obj.TabImage_ = uicontrol( ... |
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61 | 'Visible', 'on', ... |
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62 | 'units', 'pixels', ... |
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63 | 'Parent', obj.UIContainer, ... |
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64 | 'HandleVisibility', 'off', ... |
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65 | 'Position', [1 1 1 1], ... |
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66 | 'style', 'checkbox', ... |
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67 | 'Tag', 'uiextras.TabPanel:TabImage'); |
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68 | |
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69 | % Make sure the images are loaded |
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70 | obj.reloadImages(); |
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71 | |
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72 | % Set some defaults |
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73 | obj.setPropertyFromDefault( 'HighlightColor' ); |
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74 | obj.setPropertyFromDefault( 'ShadowColor' ); |
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75 | obj.setPropertyFromDefault( 'TabPosition' ); |
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76 | obj.setPropertyFromDefault( 'TabSize' ); |
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77 | |
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78 | % Parse any input arguments |
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79 | if nargin>0 |
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80 | set( obj, varargin{:} ); |
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81 | end |
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82 | obj.redraw(); |
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83 | end % TabPanel |
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84 | |
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85 | end % public methods |
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86 | |
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87 | methods |
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88 | |
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89 | function set.TabSize(obj,value) |
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90 | obj.TabSize = value; |
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91 | obj.redraw(); |
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92 | end % set.TabSize |
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93 | |
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94 | function set.TabPosition(obj,value) |
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95 | if ~ischar( value ) || ~ismember( lower( value ), {'top','bottom'} ) |
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96 | error( 'GUILayout:InvalidPropertyValue', ... |
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97 | 'Property ''TabPosition'' must be ''top'' or ''bottom''.' ); |
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98 | end |
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99 | obj.TabPosition = [upper( value(1) ),lower( value(2:end) )]; |
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100 | obj.redraw(); |
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101 | end % set.TabPosition |
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102 | |
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103 | function value = get.TabNames( obj ) |
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104 | if isempty( obj.PageLabels ) |
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105 | value = {}; |
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106 | elseif numel( obj.PageLabels ) == 1 |
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107 | value = {get( obj.PageLabels, 'String' )}; |
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108 | else |
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109 | value = get( obj.PageLabels, 'String' )'; |
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110 | end |
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111 | end % get.TabNames |
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112 | |
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113 | function set.TabNames(obj,value) |
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114 | if ~iscell( value ) || numel( value )~=numel( obj.Children ) |
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115 | error( 'GUILayout:InvalidPropertyValue', ... |
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116 | 'Property ''TabNames'' must be a cell array of strings the same size as property ''Children''.' ) |
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117 | end |
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118 | for ii=1:numel( obj.Children ) |
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119 | set( obj.PageLabels(ii), 'String', value{ii} ); |
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120 | end |
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121 | end % set.TabNames |
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122 | |
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123 | function value = get.TabEnable(obj) |
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124 | value = obj.PageEnable_; |
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125 | end % get.TabEnable |
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126 | |
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127 | function set.TabEnable(obj,value) |
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128 | if ~iscell( value ) || numel( value )~=numel( obj.Children ) ... |
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129 | || any( ~ismember( lower(value), {'on','off'} ) ) |
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130 | error( 'GUILayout:InvalidPropertyValue', ... |
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131 | 'Property ''TabEnable'' must be a cell array of ''on''/''off'' the same size as property ''Children''.' ) |
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132 | end |
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133 | obj.PageEnable_ = lower( value ); |
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134 | if strcmpi( obj.Enable, 'on' ) |
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135 | obj.onEnable(); |
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136 | end |
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137 | end % set.TabEnable |
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138 | |
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139 | end % accessor methods |
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140 | |
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141 | methods ( Access = protected ) |
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142 | |
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143 | function redraw(obj) |
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144 | %redraw Redraw the tabs and contents |
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145 | |
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146 | % Check the object exists (may be being deleted!) |
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147 | if isempty(obj.TabImage_) || ~ishandle(obj.TabImage_) |
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148 | return; |
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149 | end |
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150 | |
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151 | C = obj.Children; |
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152 | T = obj.TabNames; |
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153 | |
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154 | % Make sure label array is right size |
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155 | nC = numel(C); |
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156 | nT = numel(T); |
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157 | |
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158 | if nC==0 || nT~=nC |
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159 | return |
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160 | end |
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161 | pos = getpixelposition( obj.UIContainer ); |
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162 | |
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163 | pad = obj.Padding; |
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164 | |
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165 | % Calculate the required height from the font size |
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166 | oldFontUnits = get( obj.PageLabels(1), 'FontUnits' ); |
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167 | set( obj.PageLabels(1), 'FontUnits', 'Pixels' ); |
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168 | fontHeightPix = get( obj.PageLabels(1), 'FontSize' ); |
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169 | set( obj.PageLabels(1), 'FontUnits', oldFontUnits ); |
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170 | tabHeight = ceil( 1.5*fontHeightPix + 4 ); |
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171 | |
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172 | % Work out where the tabs labels and contents go |
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173 | if strcmpi( obj.TabPosition, 'Top' ) |
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174 | tabPos = [1 1+pos(4)-tabHeight, pos(3), tabHeight+2]; |
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175 | contentPos = [pad+1 pad+1 pos(3)-2*pad pos(4)-2*pad-tabHeight]; |
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176 | else |
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177 | tabPos = [1 1, pos(3), tabHeight+2]; |
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178 | contentPos = [pad+1 tabHeight+pad+1 pos(3)-2*pad pos(4)-2*pad-tabHeight]; |
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179 | end |
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180 | |
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181 | % Shorthand for colouring things in |
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182 | fgCol = obj.BackgroundColor; |
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183 | bgCol = obj.BackgroundColor; |
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184 | shCol = 0.9*obj.BackgroundColor; |
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185 | |
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186 | totalWidth = round( tabPos(3)-1 ); |
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187 | divWidth = 8; |
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188 | textWidth = obj.TabSize; |
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189 | if textWidth<0 |
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190 | % This means we should fill the space |
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191 | textWidth = floor( (totalWidth - (nC+1)*divWidth) / nC ); |
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192 | end |
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193 | textPos = [tabPos(1:2), textWidth, tabHeight - 4]; |
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194 | |
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195 | if ~isempty( obj.SelectedChild ) |
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196 | % The tabs are drawn as a single image |
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197 | tabCData(:,:,1) = bgCol(1)*ones(20,totalWidth); |
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198 | tabCData(:,:,2) = bgCol(2)*ones(20,totalWidth); |
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199 | tabCData(:,:,3) = bgCol(3)*ones(20,totalWidth); |
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200 | set( obj.TabImage_, 'Position', [tabPos(1:2),totalWidth,tabHeight] ); |
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201 | |
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202 | % Use the CardLayout function to put the right child onscreen |
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203 | obj.showSelectedChild( contentPos ) |
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204 | |
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205 | % Now update the tab image |
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206 | tabCData(:,1:divWidth,:) = obj.Images_.NonNot; |
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207 | for ii=1:nC |
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208 | x = divWidth+(divWidth+textWidth)*(ii-1)+1; |
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209 | set( obj.PageLabels(ii), ... |
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210 | 'Position', textPos+[x,0,0,0] ); |
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211 | % BJT: Fix bug where text renders off edge of container |
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212 | if (textPos(1)+x >= totalWidth ) |
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213 | set( obj.PageLabels(ii), 'Visible', 'off' ); |
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214 | else |
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215 | set( obj.PageLabels(ii), 'Visible', 'on' ); |
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216 | rhs = textPos(1)+x+textPos(3); |
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217 | if ( rhs > totalWidth ) |
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218 | % Text is partially off the edge |
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219 | set( obj.PageLabels(ii), 'Position', textPos+[x,0,totalWidth-rhs,0] ); |
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220 | end |
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221 | end |
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222 | |
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223 | if ii==obj.SelectedChild, |
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224 | set( obj.PageLabels(ii), ... |
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225 | 'ForegroundColor', obj.ForegroundColor, ... |
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226 | 'BackgroundColor', fgCol); |
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227 | % Set the dividers to show the right image |
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228 | tabCData(:,x:x+textWidth-1,:) = repmat(obj.Images_.SelBack,1,textWidth); |
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229 | if ii==1 |
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230 | tabCData(:,x-divWidth:x-1,:) = obj.Images_.NonSel; |
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231 | else |
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232 | tabCData(:,x-divWidth:x-1,:) = obj.Images_.NotSel; |
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233 | end |
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234 | if ii==nC |
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235 | tabCData(:,x+textWidth:x+textWidth+divWidth-1,:) = obj.Images_.SelNon; |
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236 | else |
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237 | tabCData(:,x+textWidth:x+textWidth+divWidth-1,:) = obj.Images_.SelNot; |
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238 | end |
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239 | else |
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240 | set( obj.PageLabels(ii), ... |
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241 | 'ForegroundColor', 0.6*obj.ForegroundColor + 0.4*shCol, ... |
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242 | 'BackgroundColor', shCol ); |
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243 | tabCData(:,x:x+textWidth-1,:) = repmat(obj.Images_.NotBack,1,textWidth); |
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244 | if ii==nC |
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245 | tabCData(:,x+textWidth:x+textWidth+divWidth-1,:) = obj.Images_.NotNon; |
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246 | else |
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247 | tabCData(:,x+textWidth:x+textWidth+divWidth-1,:) = obj.Images_.NotNot; |
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248 | end |
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249 | end |
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250 | end % For |
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251 | |
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252 | % Stretch the CData to match the fontsize |
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253 | if tabHeight ~= 20 |
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254 | topbot = min( round( tabHeight/2 ), 5 ); |
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255 | midsz = tabHeight - 2*topbot; |
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256 | topData = tabCData(1:topbot,:,:); |
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257 | bottomData = tabCData(end-topbot+1:end,:,:); |
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258 | midData = repmat( tabCData(10,:,:), [midsz,1,1] ); |
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259 | tabCData = [ topData ; midData ; bottomData ]; |
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260 | end |
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261 | |
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262 | if strcmpi( obj.TabPosition, 'Top' ) |
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263 | set( obj.TabImage_, 'CData', tabCData ); |
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264 | else |
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265 | set( obj.TabImage_, 'CData', flipdim( tabCData, 1 ) ); |
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266 | end |
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267 | end |
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268 | |
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269 | |
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270 | % Make sure the text labels are top of the stack |
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271 | % ch = get( obj.TabContainer_, 'Children' ); |
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272 | % if numel( ch ) > 1 |
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273 | % labs = ismember( get(ch,'Style'), 'text' ); |
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274 | % else |
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275 | % labs = strcmpi( get(ch,'Style'), 'text' ); |
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276 | % end |
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277 | % set( obj.TabContainer_, 'Children', [flipud(ch(labs));ch(~labs)] ); % Note the flip is needed so that the text always redraws |
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278 | end % redraw |
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279 | |
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280 | function onChildAdded( obj, source, eventData ) %#ok<INUSD> |
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281 | %onChildAdded: Callback that fires when a child is added to a container. |
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282 | % Select the new addition |
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283 | C = obj.Children; |
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284 | N = numel( C ); |
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285 | visible = obj.Visible; |
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286 | title = sprintf( 'Page %d', N ); |
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287 | |
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288 | obj.PageLabels(end+1,1) = uicontrol( ... |
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289 | 'Visible', visible, ... |
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290 | 'style', 'text', ... |
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291 | 'enable', 'inactive', ... |
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292 | 'string', title, ... |
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293 | 'FontName', obj.FontName, ... |
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294 | 'FontUnits', obj.FontUnits, ... |
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295 | 'FontSize', obj.FontSize, ... |
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296 | 'FontAngle', obj.FontAngle, ... |
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297 | 'FontWeight', obj.FontWeight, ... |
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298 | 'ForegroundColor', obj.ForegroundColor, ... |
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299 | 'parent', obj.UIContainer, ... |
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300 | 'HandleVisibility', 'off', ... |
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301 | 'ButtonDownFcn', {@iTabClicked, obj, N}); |
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302 | obj.PageEnable_{1,end+1} = 'on'; |
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303 | if strcmpi( obj.Enable, 'off' ) |
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304 | set( obj.PageLabels(end), 'Enable', 'off' ); |
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305 | end |
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306 | obj.SelectedChild = N; |
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307 | end % onChildAdded |
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308 | |
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309 | function onChildRemoved( obj, source, eventData ) %#ok<INUSL> |
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310 | %onChildAdded: Callback that fires when a container child is destroyed or reparented. |
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311 | % If the missing child is the selected one, select something else |
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312 | obj.TabNames( eventData.ChildIndex ) = []; |
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313 | obj.PageEnable_( eventData.ChildIndex ) = []; |
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314 | delete( obj.PageLabels(end) ); |
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315 | obj.PageLabels(end) = []; |
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316 | if obj.SelectedChild >= eventData.ChildIndex |
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317 | % Changing the selection will force a redraw |
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318 | if isempty( obj.Children ) |
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319 | obj.SelectedChild = []; |
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320 | else |
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321 | obj.SelectedChild = max( 1, obj.SelectedChild - 1 ); |
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322 | end |
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323 | else |
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324 | % We don't need to change the selection, so explicitly |
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325 | % redraw |
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326 | obj.redraw(); |
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327 | end |
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328 | end % onChildRemoved |
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329 | |
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330 | function onBackgroundColorChanged( obj, source, eventData ) %#ok<INUSD> |
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331 | %onBackgroundColorChanged Callback that fires when the container background color is changed |
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332 | % |
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333 | % We need to make the panel match the container background |
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334 | obj.reloadImages(); |
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335 | obj.redraw(); |
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336 | end % onBackgroundColorChanged |
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337 | |
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338 | function onPanelColorChanged( obj, source, eventData ) %#ok<INUSD> |
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339 | % Colors have changed. This requires the images to be reset and |
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340 | % redrawn. |
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341 | obj.reloadImages(); |
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342 | obj.redraw(); |
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343 | end % onPanelColorChanged |
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344 | |
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345 | function onPanelFontChanged( obj, source, eventData ) %#ok<INUSL> |
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346 | % Font has changed. Since the font size and shape affects the |
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347 | % space available for the contents, we need to redraw. |
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348 | for ii=1:numel( obj.PageLabels ) |
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349 | set( obj.PageLabels(ii), eventData.Property, eventData.Value ); |
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350 | end |
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351 | obj.redraw(); |
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352 | end % onPanelFontChanged |
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353 | |
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354 | function onEnable( obj, source, eventData ) %#ok<INUSD> |
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355 | % We use "inactive" to be the "on" state |
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356 | if strcmpi( obj.Enable, 'on' ) |
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357 | % Take notice of the individual enable states. Where the |
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358 | % page is to be enabled we set the title uicontrol to be |
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359 | % inactive rather than on to avoid mouse-over problems. |
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360 | hittest = obj.PageEnable_; |
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361 | enable = strrep( obj.PageEnable_, 'on', 'inactive' ); |
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362 | for jj=1:numel( obj.PageLabels ) |
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363 | set( obj.PageLabels(jj), ... |
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364 | 'Enable', enable{jj}, ... |
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365 | 'HitTest', hittest{jj} ); |
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366 | % Since the panel as a whole is on, we may need to |
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367 | % switch off some children |
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368 | obj.helpSetChildEnable( obj.Children(jj), hittest{jj} ); |
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369 | end |
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370 | else |
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371 | for jj=1:numel( obj.PageLabels ) |
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372 | set( obj.PageLabels(jj), 'Enable', 'off', 'HitTest', 'off' ); |
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373 | end |
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374 | end |
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375 | end % onEnable |
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376 | |
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377 | function reloadImages( obj ) |
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378 | % Reload tab images |
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379 | |
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380 | % If any of the colours are not yet constructed, stop now |
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381 | if isempty( obj.TabImage_ ) ... |
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382 | || isempty( obj.HighlightColor ) ... |
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383 | || isempty( obj.ShadowColor ) |
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384 | return; |
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385 | end |
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386 | |
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387 | % First part of the name says which type of right-hand edge is needed |
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388 | % (non = no edge, not = not selected, sel = selected), second gives |
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389 | % left-hand |
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390 | obj.Images_.NonSel = iLoadIcon( 'tab_NoEdge_Selected.png', ... |
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391 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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392 | obj.Images_.SelNon = iLoadIcon( 'tab_Selected_NoEdge.png', ... |
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393 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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394 | obj.Images_.NonNot = iLoadIcon( 'tab_NoEdge_NotSelected.png', ... |
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395 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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396 | obj.Images_.NotNon = iLoadIcon( 'tab_NotSelected_NoEdge.png', ... |
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397 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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398 | obj.Images_.NotSel = iLoadIcon( 'tab_NotSelected_Selected.png', ... |
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399 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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400 | obj.Images_.SelNot = iLoadIcon( 'tab_Selected_NotSelected.png', ... |
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401 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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402 | obj.Images_.NotNot = iLoadIcon( 'tab_NotSelected_NotSelected.png', ... |
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403 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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404 | obj.Images_.SelBack = iLoadIcon( 'tab_Background_Selected.png', ... |
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405 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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406 | obj.Images_.NotBack = iLoadIcon( 'tab_Background_NotSelected.png', ... |
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407 | obj.BackgroundColor, obj.HighlightColor, obj.ShadowColor ); |
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408 | |
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409 | end % reloadImages |
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410 | |
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411 | end % protected methods |
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412 | |
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413 | end % classdef |
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414 | |
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415 | %-------------------------------------------------------------------------% |
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416 | |
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417 | function im = iLoadIcon(imagefilename, backgroundcolor, highlightcolor, shadowcolor ) |
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418 | % Special image loader that turns various primary colours into background |
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419 | % colours. |
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420 | |
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421 | error( nargchk( 4, 4, nargin, 'struct' ) ); |
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422 | |
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423 | % Load an icon and set the transparent color |
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424 | this_dir = fileparts( mfilename( 'fullpath' ) ); |
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425 | icon_dir = fullfile( this_dir, 'Resources' ); |
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426 | im8 = imread( fullfile( icon_dir, imagefilename ) ); |
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427 | im = double(im8)/255; |
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428 | rows = size(im,1); |
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429 | cols = size(im,2); |
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430 | |
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431 | % Anything that's pure green goes to transparent |
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432 | f=find((im8(:,:,1)==0) & (im8(:,:,2)==255) & (im8(:,:,3)==0)); |
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433 | im(f) = nan; |
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434 | im(f + rows*cols) = nan; |
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435 | im(f + 2*rows*cols) = nan; |
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436 | |
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437 | % Anything pure red goes to selected background |
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438 | f=find((im8(:,:,1)==255) & (im8(:,:,2)==0) & (im8(:,:,3)==0)); |
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439 | im(f) = backgroundcolor(1); |
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440 | im(f + rows*cols) = backgroundcolor(2); |
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441 | im(f + 2*rows*cols) = backgroundcolor(3); |
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442 | |
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443 | % Anything pure blue goes to background background |
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444 | f=find((im8(:,:,1)==0) & (im8(:,:,2)==0) & (im8(:,:,3)==255)); |
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445 | im(f) = backgroundcolor(1); |
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446 | im(f + rows*cols) = backgroundcolor(2); |
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447 | im(f + 2*rows*cols) = backgroundcolor(3); |
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448 | |
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449 | % Anything pure yellow goes to deselected background |
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450 | f=find((im8(:,:,1)==255) & (im8(:,:,2)==255) & (im8(:,:,3)==0)); |
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451 | im(f) = 0.9*backgroundcolor(1); |
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452 | im(f + rows*cols) = 0.9*backgroundcolor(2); |
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453 | im(f + 2*rows*cols) = 0.9*backgroundcolor(3); |
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454 | |
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455 | % Anything pure white goes to highlight |
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456 | f=find((im8(:,:,1)==255) & (im8(:,:,2)==255) & (im8(:,:,3)==255)); |
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457 | im(f) = highlightcolor(1); |
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458 | im(f + rows*cols) = highlightcolor(2); |
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459 | im(f + 2*rows*cols) = highlightcolor(3); |
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460 | |
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461 | % Anything pure black goes to shadow |
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462 | f=find((im8(:,:,1)==0) & (im8(:,:,2)==0) & (im8(:,:,3)==0)); |
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463 | im(f) = shadowcolor(1); |
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464 | im(f + rows*cols) = shadowcolor(2); |
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465 | im(f + 2*rows*cols) = shadowcolor(3); |
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466 | |
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467 | end % iLoadIcon |
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468 | |
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469 | %-------------------------------------------------------------------------% |
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470 | |
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471 | function iTabClicked( src, evt, obj, idx ) %#ok<INUSL> |
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472 | |
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473 | % Call the user callback before selecting the tab |
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474 | evt = struct( ... |
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475 | 'Source', obj, ... |
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476 | 'PreviousChild', obj.SelectedChild, ... |
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477 | 'SelectedChild', idx ); |
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478 | uiextras.callCallback( obj.Callback, obj, evt ); |
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479 | obj.SelectedChild = idx; |
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480 | |
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481 | end % iTabClicked |
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