libreoffice/include/touch/touch.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * Copyright 2013 LibreOffice contributors.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#ifndef INCLUDED_TOUCH_TOUCH_H
#define INCLUDED_TOUCH_TOUCH_H

#include <config_features.h>

#define MOBILE_MAX_ZOOM_IN 600
#define MOBILE_MAX_ZOOM_OUT 80
#define MOBILE_ZOOM_SCALE_MULTIPLIER 10000

#if !HAVE_FEATURE_DESKTOP

#ifdef __cplusplus
extern "C" {
#endif

// These functions are the interface between the upper GUI layers of a
// LibreOffice-based app on a touch platform app and the lower "core"
// layers, used in cases where the core parts need to call
// functionality in the upper parts or vice versa.
//
// Thus there are two classes of functions here:
//
// 1) Those to be implemented in the upper layer and called by the
// lower layer. Prefixed by touch_ui_. The same API is used on each
// such platform. There are called from low level LibreOffice
// code. Note that these are just declared here in a header for a
// "touch" module, the per-platform implementations are elsewhere.

void touch_ui_damaged(int minX, int minY, int width, int height);

void touch_ui_show_keyboard();
void touch_ui_hide_keyboard();
bool touch_ui_keyboard_visible();

// 2) Those implmented in the lower layers to be called by the upper
// layer, in cases where we don't want to include a bunch of the
// "normal" LibreOffice C++ headers in an otherwise purely Objective-C
// CocoaTouch-based source file. Of course it depends on the case
// where that is wanted, and this all is work in progress. Prefixed by
// touch_lo_.

void touch_lo_keyboard_did_hide();

void touch_lo_runMain();
void touch_lo_set_view_size(int width, int height);
void touch_lo_render_windows(void *context, int minX, int minY, int width, int height);
void touch_lo_tap(int x, int y);
void touch_lo_pan(int deltaX, int deltaY);
void touch_lo_zoom(int x, int y, float scale);
void touch_lo_keyboard_input(int c);

typedef enum { DOWN, MOVE, UP} MLOMouseButtonState;

void touch_lo_mouse_drag(int x, int y, MLOMouseButtonState state);

#ifdef __cplusplus
}
#endif

#endif // HAVE_FEATURE_DESKTOP

#endif // INCLUDED_TOUCH_TOUCH_H

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