gusucode.com > 电子数字钟源码程序 > 电子数字钟源码程序/clockColon.m
classdef clockColon < handle
%% CLOCKCOLON a visual representation of a colon.
%
%
% Syntax:
%
% colon = CLOCKCOLON;
% colon = CLOCKCOLON(BOOL);
% colon = CLOCKCOLON(X, Y);
% colon = CLOCKCOLON(X, Y, BOOL);
%
%
% Description:
%
% colon = CLOCKCOLON sets the status of the colon to true and
% defaults the x and y locations of the top left corner of the
% clockColon's matrix to (0, 0).
%
% colon = CLOCKCOLON(bool) sets the status of the colon to BOOL and
% defaults the x and y locations of the top left corner of the
% clockColon's matrix to (0, 0).
%
% colon = CLOCKCOLON(X, Y) sets the status of the colon to true and
% sets the x and y locations of the top left corner of the
% clockColon's matrix to (X, Y).
%
% colon = CLOCKCOLON(X, Y, bool) sets the status of the colon to BOOL
% and sets the x and y locations of the top left corner of the
% clockColon's matrix to (X, Y).
%
%
% Copyright James Kristoff 2012
%
% see also: CLOCKSEGMENT, HORSEGMENT, VERTSEGMENT, SEVENSEGMENTDISPLAY,
% DIGICLOCK
%% Properties of a CLOCKCOLON
%These properties are protected, and cannot be accessed outside of this
%class
properties (Access = protected)
rows %number of rows in the clockColon's matrix
cols %number of columns in the clockColon's matrix
colonMatrix %a matrix to be filled, then shown with IMSHOW
hClockColon %a handle to the figure of the clockColon
black %a value of 255 which is used to normalize colonMatrix
end
%These properties are public, and can be accessed outside the class.
%They are also observable, which means they can be watched by a
% listener function.
properties (Access = public, SetObservable = true)
topLeftX %the X location of the top left corner
% of the colonMatrix
topLeftY %the Y location of the top left corner
% of the colonMatrix
dots %vector containing horSegment objects
status %the status of the clockColon, true or false, which
% defines whether the clockColon is on or off
end
%% Custom events to be listened for by the class
events
parentClosed
end
%% Member functions for the class
methods
function obj = clockColon(varargin)
%Default constructor for the class
%handle is null until an image is created with IMSHOW
obj.hClockColon = [];
%initialize colon segment Locations
obj.dots = horSegment(2, 10, 5, 6);
obj.dots(2) = horSegment(2, 24, 5, 6);
%set the row and column size for the clockColon's matrix
setDims(obj);
%set black to 255
obj.black = 255;
%switch statement to parse inputs
switch nargin
case 0 %if nothing is passed then set values to default
obj.status = true;
obj.topLeftX = 0;
obj.topLeftY = 0;
case 1 %for one input expect a boolean
obj.status = varargin{1};
obj.topLeftX = 0;
obj.topLeftY = 0;
case 2 %for two inputs expect x and y values
obj.topLeftX = varargin{1};
obj.topLeftY = varargin{2};
obj.status = true;
case 3 %for three inputs expect x, y, and then a boolean
obj.topLeftX = varargin{1};
obj.topLeftY = varargin{2};
obj.status = varargin{3};
otherwise %otherwise put out an error
error('Between 0 and 3 inputs allowed');
end
%initializes and fills the clockColon's matrix with color
reInit(obj);
%begins listening for an event to which it will react
addlistener(obj,'parentClosed', @parentClosedFcn);
end
function rows = getRows(obj)
%get the number of rows
rows = obj.rows;
end
function cols = getCols(obj)
%get the number of columns
cols = obj.cols;
end
function mat = getMat(obj)
%get the clockColon's Matrix
mat = obj.colonMatrix;
end
function setDims(obj)
%set the number of rows and columns
obj.rows = 39;
obj.cols = 8;
end
function parentClosedFcn(obj, ~,~,~)
%when the parent object is closed set the handle to null
obj.hClockColon = [];
end
function notifyCloseParent(obj,~,~)
%function necessary for custom event?
notify(obj, 'parentClosed')
closereq
end
function disp(obj)
%overload the DISP function to display what we want for this object
tmpStr1 = 'The status is: %i,\n';
tmpStr2 = 'The display is located at: (%i, %i)\n';
fprintf(1, ...
[tmpStr1 tmpStr2], ...
obj.status, ...
obj.topLeftX, ...
obj.topLeftY);
end
function display(obj) %gets rid of a = at top...
%overload DISPLAY function
disp(obj)
end
function set.status(obj, value)
%overloaded set function for status property
%Check if value is a boolean
if (value ~= true && value ~= false)
warning('MATLAB:paramAmbiguous',...
'only booleans allowed, not changed');
else
switch value
case false
obj.dots(1).status = false; %#ok<*MCSUP>
obj.dots(2).status = false;
case true
obj.dots(1).status = true;
obj.dots(2).status = true;
otherwise
obj.dots(1).status = true;
obj.dots(2).status = true;
warning('MATLAB:paramAmbiguous',...
'Something went wrong setting a number\n');
end
obj.status = value;
end
%reinitialize
reInit(obj);
end
function imshow(obj)
%overload IMSHOW function to show the clockColon's matrix
%if the image has not been created yet set the handle
if isempty(obj.hClockColon)
obj.hClockColon = imshow(obj.colonMatrix ./ obj.black);
set(gcf,'closeRequestFcn',@obj.notifyCloseParent);
set(gca,'DeleteFcn' ,@obj.notifyCloseParent);
else %isHandle because it exists...
if ishandle(obj.hClockColon)
%update the images data
set(obj.hClockColon, 'CData', obj.colonMatrix...
./obj.black);
else
%Do nothing (it was ploted but has since disappeared)
obj.hClockColon = [];
end
end
end
function reInit(obj)
%refills the matrix then shows the updated image
populateDisplay(obj);
if ~isempty(obj.hClockColon)
imshow(obj);
end
end
function populateDisplay(obj)
%fills the clockColon with it's two horSegments
%initialize segment to a black rectangle
obj.colonMatrix = zeros (obj.rows,obj.cols,3);
%fills clockColon with the segments
for i = 1:size(obj.dots,2)
obj.colonMatrix(obj.dots(i).topLeftY:...
(obj.dots(i).topLeftY ...
+ obj.dots(i).getRows() - 1),...
obj.dots(i).topLeftX:...
(obj.dots(i).topLeftX ...
+ obj.dots(i).getCols() - 1),...
:)...
= ...
(obj.colonMatrix(obj.dots(i).topLeftY:...
(obj.dots(i).topLeftY ...
+ obj.dots(i).getRows() - 1),...
obj.dots(i).topLeftX:...
(obj.dots(i).topLeftX ...
+ obj.dots(i).getCols() - 1),...
:)...
+ obj.dots(i).getMat());
end
end
end
end