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Making a GUI in dm-script

 // 2 button dialog example 

// To invert the most front image.

// Modified from http://www.dmscripting.com/files/Example_Button_Enabling_Dialog.s

// Renfong

// 2021/03/24



// Global variables

taggroup firstbutton, secondbutton

number true=1

number false=0

image src



// the class createbuttondialog is of the type user interface frame (UIFrame), and responds to interactions

// with the dialog - in this case pressing buttons


class CreateButtonDialog : uiframe {

void button1response(object self) {


//the response when the button is pressed

self.SetElementIsEnabled("first", false); // these commands set the button as enabled or not enabled

self.SetElementIsEnabled("second", true); // "second" in this command is the identifier of the button 'secondbutton'


// put action1 here

src.GetFrontImage()

result(src.GetName()+" is picked.\n")

};


void button2response(object self) {


//the response when the second button is pressed

self.SetElementIsEnabled("first",true);

self.SetElementIsEnabled("second",false);

// put action2 here

image invert

invert = src

invert = max(src)-invert

invert.SetName("Invert of "+src.GetName())

invert.ShowImage()

};

}



// this function creates a button taggroup which returns the taggroup 'box' which is added to

// the dialog in the createdialog function.


taggroup MakeButton() {


// Creates a box in the dialog which surrounds the button

taggroup box_items

taggroup box=dlgcreatebox("", box_items)

box.dlgexternalpadding(5,5)

box.dlginternalpadding(25,25)


// Creates the first button

firstButton = DLGCreatePushButton("Get Front Image", "button1response")

DLGEnabled(firstbutton,1) // sets the button as enabled when the dialog is first created

DLGIdentifier(firstbutton, "first") // identifiers are strings which identify an element, such as a button

// they are used to change the enabled/disabled status of the element in the button response functions above

firstbutton.DLGExternalPadding(10,0)

box_items.DLGAddElement(firstbutton)


// Creates the second button

secondbutton = DLGCreatePushButton("Show Invert", "button2response")

DLGEnabled(secondbutton,0)

DLGIdentifier(secondbutton, "second")

secondbutton.DLGExternalPadding(5,10)

box_items.DLGAddElement(secondbutton)

return box


};


// This function creates the dialog, drawing togther the parts (buttons etc) which make it up

// and alloc 'ing' the dialog with the response, so that one responds to the other. It also

// displays the dialog


void CreateDialog() {


// Configure the positioning in the top right of the application window

TagGroup position;

position = DLGBuildPositionFromApplication()

position.TagGroupSetTagAsTagGroup( "Width", DLGBuildAutoSize() )

position.TagGroupSetTagAsTagGroup( "Height", DLGBuildAutoSize() )

position.TagGroupSetTagAsTagGroup( "X", DLGBuildRelativePosition( "Inside", 1 ) )

position.TagGroupSetTagAsTagGroup( "Y", DLGBuildRelativePosition( "Inside", 1 ) )


TagGroup dialog_items;

TagGroup dialog = DLGCreateDialog("Do invert", dialog_items).dlgposition(position);


dialog_items.DLGAddElement( MakeButton() );


object dialog_frame = alloc(CreateButtonDialog).init(dialog)

dialog_frame.display("Invet Image");

};



// calls the above function which puts it all together

CreateDialog()


============================================

result:



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