Group uicontrol elements and ALIGN these GROUPS

2016 7 15
1 个回答
更新时间：2016 7 15
13 次查看（30 天）

0 个投票

I'm attempting to implement Grid, vertical and horizontal Layout classes in Matlab. To do so, I Group Buttons by putting them into Panels, where each Panel represents a Layout (e.g. a horizontal Layout). I have to group the buttons of one Layout, in order to be able to put one Layout into another (e.g. place a horizontal Layout in one cell of a grid layout). I have almost got it working, however, it seems, that Matlab's align-function doesn't Support Panels.
Is there a way of grouping Buttons and other uicontrol-objects and then aligning These Groups? It doesn't have to be uipanels.
Any help is highly appreciated.
Arduvast Gundar
P.S.: I know that this question has been asked before ( http://de.mathworks.com/matlabcentral/answers/245542-is-there-a-trick-to-align-uipanel-objects-w-e-g-uicontrol-objects ), however, the only answer provided was to manually set the Panel positions, which is not a satisfactory Option for me (I would hate to lose the comfort of align and the whole idea of the grid-layout class is to do away with Matlabs terrible absolute Position values and enable auto-positioning).

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回答（1 个）

Arduvast Gundar
Arduvast Gundar 2016-7-15
编辑：Arduvast Gundar 2016-7-15

0 个投票

So, this is what I've come up with so far, following the absolute-positioning-Approach. However, I would appreciate a more elegant way of doing this.
function [newPosition] = align (obj,p_elems,varargin)
currPos = get(p_elems,'Position');
currPos = cell2mat(currPos);
% Sort Elements:
elemIndex = [1:numel(p_elems)];
elemIndex = elemIndex';
currPos = [currPos elemIndex];
l2rPos = sortrows(currPos);
t2bPos = sortrows(currPos,2);
noElems = numel(p_elems);
% get extreme values
[maxLeft,lIdx] = max(currPos(:,1));
[maxRight,rIdx] = max((currPos(:,1)+ currPos(:,3)));
maxWidth = abs(maxRight - maxLeft);
[maxBottom,bIdx] = max(currPos(:,2));
[maxTop,tIdx] = max((currPos(:,2)+ currPos(:,4)));
maxHeight = abs(maxTop - maxBottom);
xAlignMode = varargin{1};
yAlignMode = '';
xSpacing = [];
ySpacing = [];
vaIdx = [1 0 2 0]; % xAlignMode, xSpacing, YAlignMode, ySpacing
if strcmp(xAlignMode,'Fixed')
vaIdx(2) = 2;
vaIdx(3) = 3;
vaIdx(4) = 4;
else
vaIdx(4) = 3;
end
yAlignMode = varargin{vaIdx(3)};
switch xAlignMode
case 'Left'
newPosition(:,1) = currPos(1,1);
case 'Center'
newPosition(:,1) = maxWidth/2 - (currPos(:,1)-currPos(:,3))/2;
case 'Right'
newPosition(:,1) = currPos(1,1) + currPos(1,3) - currPos(:,3);
case 'Distribute'
% Total width of Elements:
totalWidth = sum(l2rPos(:,3));
unusedSpace = maxWidth - totalWidth;
spacer = 4; % default value
if unusedSpace > 0
spacer = unusedSpace/noElems;
end
tmpX = l2rPos(1,3) + spacer;
for iElem = 2:noElems
l2rPos(iElem,1) = tmpX;
tmpX = tmpX + l2rPos(iElem,3) + spacer;
end
newPosition = l2rPos;
case 'Fixed'
spacer = varargin{vaIdx(2)};
tmpX = l2rPos(1,3) + spacer;
for iElem = 2:noElems
l2rPos(iElem,1) = tmpX;
tmpX = tmpX + l2rPos(iElem,3) + spacer;
end;
newPosition = l2rPos;
case 'None'
newPosition = currPos;
otherwise
Error('Incorrect Parameter for horizontal alignment mode');
end
switch yAlignMode
case 'Bottom'
newPosition(:,2) = currPos(1,2);
case 'Middle'
newPosition(:,2) = maxWidth/2 - (currPos(:,2)-currPos(:,4))/2;
case 'Top'
newPosition(:,2) = currPos(1,2) + currPos(1,4) - currPos(:,4);
case 'Distribute'
noElems = numel(p_elems);
% Total width of Elements:
totalHeight = sum(t2bPos(:,4));
unusedSpace = maxHeight - totalHeight;
spacer = 4; % default value
if unusedSpace > 0
spacer = unusedSpace/noElems;
end
tmpY = t2bPos(1,4) + spacer;
for iElem = 2:noElems
t2bPos(iElem,1) = tmpY;
tmpY = tmpY + t2bPos(iElem,4) + spacer;
end
newPosition = t2bPos;
case 'Fixed'
spacer = varargin{vaIdx(4)};
tmpY = t2bPos(1,4) + spacer;
for iElem = 2:noElems
t2bPos(iElem,2) = tmpY;
tmpY = tmpY + t2bPos(iElem,4) + spacer;
end;
newPosition = t2bPos;
case 'None'
newPosition = currPos;
otherwise
Error('Incorrect Parameter for horizontal alignment mode');
end
newPosition = sortrows(newPosition,5);
newPosition = newPosition(:,1:4);
end

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