Embedded Artists / DMBasicGUI

A basic graphics package for the LPC4088 Display Module.

Dependents:   lpc4088_displaymodule_demo_sphere sampleGUI sampleEmptyGUI lpc4088_displaymodule_fs_aid ... more

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Resource Class Reference
Public Member Functions | Friends

Resource Class Reference

A resource container to pass around instead of using hardcoded data. More...

#include <Resource.h>

Public Member Functions

 Resource (const char *filename, int width, int height)
 Create a new file resource.
 Resource (const unsigned char *data, const unsigned int dataSize, int width, int height)
 Create a new resource from a data array.
int width ()
 Returns the width of the resource.
int height ()
 Returns the height of the resource.

Friends

class Image

Detailed Description

A resource container to pass around instead of using hardcoded data.

Having a Resource class makes it possible to hide the source from the user so that e.g. AppColorPicker doesn't need to know if the OK button is loaded from an array or from a file system. The AppColorPicker only need the resource. The Image class takes care of the loading.

 #include "mbed.h"
 #include "Resource.h"
 #include "Image.h"

 const unsigned char ok_image1[] = { 137,80,78,71, ... };
 int ok_image1_sz = sizeof(ok_image1);

 int main(void) {
    // initialize the display
    ...

    // create the resources
    Resource resOk(ok_image1, ok_image1_sz, 40, 40);
    Resource resCancel("/qspi/cancel.png", 40, 40);

    // add resource to application
    AppNetwork app ...;
    app.setResource(AppNetwork::Resource_Ok_Button, &resOk);
    app.setResource(AppNetwork::Resource_Cancel_Button, &resCancel);

    // run application
    app.setup();
    app.runToCompletion();

    ...
 }

Definition at line 60 of file Resource.h.

Constructor & Destructor Documentation

Resource ( const char *  filename,
int  width,
int  height 
)

Create a new file resource.

The width and height are only guidelines and are often not used. The purpose is to allow e.g. the AppColorPicker to know the size of the image before it is loaded from the file system. It can also be used as a guide by the AppLauncher.

Parameters:
filenamethe resource location
widththe width of the image
heightthe height of the image

Definition at line 20 of file Resource.cpp.

Resource ( const unsigned char *  data,
const unsigned int  dataSize,
int  width,
int  height 
)

Create a new resource from a data array.

The width and height are only guidelines and are often not used. The purpose is to allow e.g. the AppColorPicker to know the size of the image before it is loaded from the file system. It can also be used as a guide by the AppLauncher.

Parameters:
datathe resource
dataSizenumber of bytes in data
widththe width of the image
heightthe height of the image

Definition at line 30 of file Resource.cpp.

Member Function Documentation

int height (  )

Returns the height of the resource.

The width and height are only guidelines and are often not used. The purpose is to allow e.g. the AppColorPicker to know the size of the image before it is loaded from the file system. It can also be used as a guide by the AppLauncher.

Returns:
the height

Definition at line 111 of file Resource.h.

int width (  )

Returns the width of the resource.

The width and height are only guidelines and are often not used. The purpose is to allow e.g. the AppColorPicker to know the size of the image before it is loaded from the file system. It can also be used as a guide by the AppLauncher.

Returns:
the width

Definition at line 100 of file Resource.h.

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