Input.c

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/*
 * ObjectivelyMVC: Object oriented MVC framework for OpenGL, SDL2 and GNU C.
 * Copyright (C) 2014 Jay Dolan <jay@jaydolan.com>
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source distribution.
 */
 
#include <assert.h>
 
#include "Input.h"
 
const EnumName InputOrientationNames[] = MakeEnumNames(
    MakeEnumName(InputOrientationLeft),
    MakeEnumName(InputOrientationRight),
    MakeEnumName(InputOrientationAbove),
    MakeEnumName(InputOrientationBelow)
);
 
#define _Class _Input
 
#pragma mark - Object
 
static void dealloc(Object *self) {
 
    Input *this = (Input *) self;
 
    release(this->control);
    release(this->label);
 
    super(Object, self, dealloc);
}
 
#pragma mark - View
 
static void awakeWithDictionary(View *self, const Dictionary *dictionary) {
 
    super(View, self, awakeWithDictionary, dictionary);
 
    Input *this = (Input *) self;
 
    const Inlet inlets[] = MakeInlets(
        MakeInlet("control", InletTypeView, &this->control, NULL),
        MakeInlet("label", InletTypeView, &this->label, NULL),
        MakeInlet("orientation", InletTypeEnum, &this->orientation, (ident) InputOrientationNames)
    );
 
    $(self, bind, inlets, dictionary);
 
    $(this, setOrientation, this->orientation);
}
 
static View *init(View *self) {
    return (View *) $((Input *) self, initWithFrame, NULL);
}
 
#pragma mark - Input
 
static Input *initWithFrame(Input *self, const SDL_Rect *frame) {
 
    self = (Input *) super(StackView, self, initWithFrame, frame);
    if (self) {
 
        self->control = $(alloc(Control), initWithFrame, NULL);
        assert(self->control);
 
        self->label = $(alloc(Label), initWithText, NULL, NULL);
        assert(self->label);
 
        $((View *) self, addSubview, (View *) self->control);
        $((View *) self, addSubview, (View *) self->label);
 
        $((View *) self, addClassName, "container");
 
        $(self, setOrientation, InputOrientationLeft);
    }
 
    return self;
}
 
static void setControl(Input *self, Control *control) {
 
    assert(control);
 
    $((View *) self, removeSubview, (View *) self->control);
    release(self->control);
 
    self->control = retain(control);
    $((View *) self, addSubview, (View *) self->control);
 
    $(self, setOrientation, self->orientation);
}
 
static void setLabel(Input *self, Label *label) {
 
    assert(label);
 
    $((View *) self, removeSubview, (View *) self->label);
    release(self->label);
 
    self->label = retain(label);
    $((View *) self, addSubview, (View *) self->label);
 
    $(self, setOrientation, self->orientation);
}
 
static void setOrientation(Input *self, InputOrientation orientation) {
 
    self->orientation = orientation;
 
    $((View *) self->control, removeFromSuperview);
    $((View *) self->label, removeFromSuperview);
 
    switch (self->orientation) {
        case InputOrientationLeft:
        case InputOrientationAbove:
            $((View *) self, addSubview, (View *) self->label);
            $((View *) self, addSubview, (View *) self->control);
            break;
 
        case InputOrientationRight:
        case InputOrientationBelow:
            $((View *) self, addSubview, (View *) self->control);
            $((View *) self, addSubview, (View *) self->label);
            break;
    }
 
    switch (self->orientation) {
        case InputOrientationLeft:
            self->stackView.axis = StackViewAxisHorizontal;
            self->label->view.alignment = ViewAlignmentMiddleLeft;
            self->control->view.alignment = ViewAlignmentMiddleRight;
            break;
 
        case InputOrientationRight:
            self->stackView.axis = StackViewAxisHorizontal;
            self->label->view.alignment = ViewAlignmentMiddleRight;
            self->control->view.alignment = ViewAlignmentMiddleLeft;
            break;
 
        case InputOrientationAbove:
        case InputOrientationBelow:
            self->stackView.axis = StackViewAxisVertical;
            self->label->view.alignment = ViewAlignmentMiddleCenter;
            self->control->view.alignment = ViewAlignmentMiddleCenter;
            break;
    }
}
 
#pragma mark - Class lifecycle
 
static void initialize(Class *clazz) {
 
    ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
    ((ViewInterface *) clazz->interface)->awakeWithDictionary = awakeWithDictionary;
    ((ViewInterface *) clazz->interface)->init = init;
 
    ((InputInterface *) clazz->interface)->initWithFrame = initWithFrame;
    ((InputInterface *) clazz->interface)->setControl = setControl;
    ((InputInterface *) clazz->interface)->setLabel = setLabel;
    ((InputInterface *) clazz->interface)->setOrientation = setOrientation;
}
 
Class *_Input(void) {
    static Class *clazz;
    static Once once;
 
    do_once(&once, {
        clazz = _initialize(&(const ClassDef) {
            .name = "Input",
            .superclass = _StackView(),
            .instanceSize = sizeof(Input),
            .interfaceOffset = offsetof(Input, interface),
            .interfaceSize = sizeof(InputInterface),
            .initialize = initialize,
        });
    });
 
    return clazz;
}
 
#undef _Class