Menu

Menu like structure with clickable buttons. Member of GUI classes Graphic group. More...

#include <Menu.h>

Public Member Functions
	Menu ()
	Default constructor.
	Menu (cv::Size size)
	Constructor. More...
void	addButton (cv::Point startPoint, int height, cv::String text)
	Adds a button to the menu. More...
cv::Mat	draw ()
	Draws all buttons to the image. More...
void	checkClicks (int x, int y)
	Checks if a mouse-click event happened inside on of the menubuttons. More...
vector< Button > *	getButtons ()
	Gets the buttons. More...

Private Attributes
cv::Mat	img
	Image matrix of the menu.
vector< Button >	buttons
	Vector holding all buttons.

Detailed Description

Menu like structure with clickable buttons. Member of GUI classes Graphic group.

Constructor & Destructor Documentation

Menu()

Menu::Menu

(

cv::Size

size

)

Constructor.

Parameters

size	Height and width of the menu

{
    img = Mat::zeros(size, CV_8UC3);
    rectangle(img, Point(0, 0), size, Scalar(182, 182, 182), -1);
 
};

Member Function Documentation

addButton()

void Menu::addButton	(	cv::Point	startPoint,
		int	height,
		cv::String	text
	)

Adds a button to the menu.

calls the Button constructor and pushes it to the button vector

Parameters

startPoint	X and Y coordinate of the topleft corner in pixels
height	Height of the button in pixels
text	Button text

                                                              {
    buttons.push_back(Button(startPoint, height, text));
}

draw()

Mat Menu::draw

(

)

Draws all buttons to the image.

uses a iterating for loop.

Returns

the image matrix

               {
 
    vector<Button>::iterator it;
    for (it = buttons.begin(); it != buttons.end(); it++)
    {
        it->draw(&img);
    }
 
    return img;
}

checkClicks()

void Menu::checkClicks	(	int	x,
		int	y
	)

Checks if a mouse-click event happened inside on of the menubuttons.

Parameters

x	X-part of the mouse event Coordinate
y	Y-part of the mouse event Coordinate

                                   {
 
    vector<Button>::iterator it;
    for (it = buttons.begin(); it != buttons.end(); it++)
    {
        it->checkClick(x, y);
    }
 
}

getButtons()

vector< Button > * Menu::getButtons

(

)

Gets the buttons.

Returns

Pointer to the vector holding all menu buttons.

                                 {
    return &buttons;
}