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libfm-qt-packaging/src/icon.h

169 lines
3.5 KiB

/*
* Copyright (C) 2016 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __LIBFM_QT_FM_ICON_H__
#define __LIBFM_QT_FM_ICON_H__
#include <libfm/fm.h>
#include <QObject>
#include <QtGlobal>
#include "libfmqtglobals.h"
namespace Fm {
class LIBFM_QT_API Icon {
public:
// default constructor
Icon() {
dataPtr_ = nullptr;
}
Icon(FmIcon* dataPtr){
dataPtr_ = dataPtr != nullptr ? reinterpret_cast<FmIcon*>(fm_icon_ref(dataPtr)) : nullptr;
}
// copy constructor
Icon(const Icon& other) {
dataPtr_ = other.dataPtr_ != nullptr ? reinterpret_cast<FmIcon*>(fm_icon_ref(other.dataPtr_)) : nullptr;
}
// move constructor
Icon(Icon&& other) {
dataPtr_ = reinterpret_cast<FmIcon*>(other.takeDataPtr());
}
// destructor
~Icon() {
if(dataPtr_ != nullptr) {
fm_icon_unref(dataPtr_);
}
}
// create a wrapper for the data pointer without increasing the reference count
static Icon wrapPtr(FmIcon* dataPtr) {
Icon obj;
obj.dataPtr_ = reinterpret_cast<FmIcon*>(dataPtr);
return obj;
}
// disown the managed data pointer
FmIcon* takeDataPtr() {
FmIcon* data = reinterpret_cast<FmIcon*>(dataPtr_);
dataPtr_ = nullptr;
return data;
}
// get the raw pointer wrapped
FmIcon* dataPtr() {
return reinterpret_cast<FmIcon*>(dataPtr_);
}
// automatic type casting
operator FmIcon*() {
return dataPtr();
}
// automatic type casting
operator void*() {
return dataPtr();
}
// copy assignment
Icon& operator=(const Icon& other) {
if(dataPtr_ != nullptr) {
fm_icon_unref(dataPtr_);
}
dataPtr_ = other.dataPtr_ != nullptr ? reinterpret_cast<FmIcon*>(fm_icon_ref(other.dataPtr_)) : nullptr;
return *this;
}
// move assignment
Icon& operator=(Icon&& other) {
dataPtr_ = reinterpret_cast<FmIcon*>(other.takeDataPtr());
return *this;
}
bool isNull() {
return (dataPtr_ == nullptr);
}
// methods
static void unloadCache( ) {
fm_icon_unload_cache();
}
static void resetUserDataCache(GQuark quark) {
fm_icon_reset_user_data_cache(quark);
}
static void unloadUserDataCache( ) {
fm_icon_unload_user_data_cache();
}
static void setUserDataDestroy(GDestroyNotify func) {
fm_icon_set_user_data_destroy(func);
}
void setUserData(gpointer user_data) {
fm_icon_set_user_data(dataPtr(), user_data);
}
gpointer getUserData(void) {
return fm_icon_get_user_data(dataPtr());
}
static Icon fromName(const char* name) {
return Icon::wrapPtr(fm_icon_from_name(name));
}
static Icon fromGicon(GIcon* gicon) {
return Icon::wrapPtr(fm_icon_from_gicon(gicon));
}
private:
FmIcon* dataPtr_; // data pointer for the underlying C struct
};
}
#endif // __LIBFM_QT_FM_ICON_H__