ScrollView.h

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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.
 */
 
#pragma once
 
#include <ObjectivelyMVC/Control.h>
 
#define DEFAULT_SCROLL_VIEW_STEP 12.0
 
typedef struct ScrollViewDelegate ScrollViewDelegate;
 
typedef struct ScrollView ScrollView;
typedef struct ScrollViewInterface ScrollViewInterface;
 
struct ScrollViewDelegate {
 
    ident self;
 
    void (*didScroll)(ScrollView *scrollView);
};
 
struct ScrollView {
 
    Control control;
 
    ScrollViewInterface *interface;
 
    SDL_Point contentOffset;
 
    View *contentView;
 
    float step;
};
 
struct ScrollViewInterface {
 
    ControlInterface controlInterface;
 
    ScrollView *(*initWithFrame)(ScrollView *self, const SDL_Rect *frame);
 
    void (*scrollToOffset)(ScrollView *self, const SDL_Point *offset);
 
    void (*setContentView)(ScrollView *self, View *contentView);
};
 
OBJECTIVELYMVC_EXPORT Class *_ScrollView(void);