added jvm and colormap visualziation help functions

bbci · Sep 7, 2012 · c932979 · c932979
1 parent 13fd828
commit c932979
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diff --git a/visualization/private/jvm_hideFig.m b/visualization/private/jvm_hideFig.m
@@ -0,0 +1,11 @@
+function jvm= jvm_hideFig
+
+a= sscanf(getfield(ver('MATLAB'), 'Release'), '(R%d)');
+v= version('-java');
+if isempty(strfind(v, 'not enabled')) % && a>=2009,
+  jvm.fig= gcf;
+  jvm.visible= get(jvm.fig, 'Visible');
+  set(jvm.fig, 'Visible','off');
+else
+  jvm= [];
+end
diff --git a/visualization/private/jvm_restoreFig.m b/visualization/private/jvm_restoreFig.m
@@ -0,0 +1,9 @@
+function jvm_restoreFig(jvm, varargin)
+
+% opt= propertylist2struct(varargin{:});
+opt = opt_proplistToStruct(varargin{:});
+opt= opt_setDefaults(opt, {'fig_hidden', 0});
+
+if ~isempty(jvm) && ~opt.fig_hidden,
+  set(jvm.fig, 'Visible',jvm.visible);
+end
diff --git a/visualization/utils/visutil_isColormapUsed.m b/visualization/utils/visutil_isColormapUsed.m
@@ -0,0 +1,47 @@
+function yesorno= visutil_isColormapUsed(hf)
+%ISCOLORMAPUSED - Determines whether the figure's colormap is in use
+%
+%Description:
+%  This function determines whether there is some child of the specified
+%  figure that uses the figure's colormap. Since all subplots of one
+%  figure all share a common colormap (figure property), this information
+%  is important when one wants to add a new image with a local colormap
+%  without destroying other subplots on the figure. In this case the
+%  function image_local_cmap can be used.
+%
+%Usage:
+%YESORNO= iscolormapused(<HF>);
+%
+%Input:
+%  HF: Handle of the figure. If none is specified the current figure
+%      is inspected, i.e., default gcf.
+%
+%Example:
+%  clf; subplot(1,3,1); plot(randn(100,2));
+%  iscolormapused
+%  subplot(1,3,2);
+%  patch([0 1 1 0],[0 0 1 1], [1 0.1 0.7]);  %% specify color directly
+%  iscolormapused
+%  subplot(1,3,3); 
+%  patch([0 1 1 0],[0 0 1 1], 2);  %% specify color by indexing into colormap
+%  iscolormapused
+%
+%See also image_local_cmap.
+
+if nargin==0,
+  hf= gcf;
+end
+
+if isfield(get(hf),'CData') && ~isempty(get(hf,'CData')),
+  yesorno= 1;
+  return;
+end
+
+hc= get(hf, 'children');
+yesorno= 0;
+
+ii= 0;
+while ~yesorno && ii<length(hc),
+  ii= ii+1;
+  yesorno= visutil_isColormapUsed(hc(ii));
+end