godot/editor/editor_resource_preview.h
Rémi Verschelde 0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks
Which means that reduz' beloved style which we all became used to
will now be changed automatically to remove the first empty line.

This makes us lean closer to 1TBS (the one true brace style) instead
of hybridating it with some Allman-inspired spacing.

There's still the case of braces around single-statement blocks that
needs to be addressed (but clang-format can't help with that, but
clang-tidy may if we agree about it).

Part of #33027.
2020-05-14 16:54:55 +02:00

119 lines
4.7 KiB
C++

/*************************************************************************/
/* editor_resource_preview.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef EDITORRESOURCEPREVIEW_H
#define EDITORRESOURCEPREVIEW_H
#include "core/os/semaphore.h"
#include "core/os/thread.h"
#include "scene/main/node.h"
#include "scene/resources/texture.h"
class EditorResourcePreviewGenerator : public Reference {
GDCLASS(EditorResourcePreviewGenerator, Reference);
protected:
static void _bind_methods();
public:
virtual bool handles(const String &p_type) const;
virtual Ref<Texture2D> generate(const RES &p_from, const Size2 &p_size) const;
virtual Ref<Texture2D> generate_from_path(const String &p_path, const Size2 &p_size) const;
virtual bool generate_small_preview_automatically() const;
virtual bool can_generate_small_preview() const;
EditorResourcePreviewGenerator();
};
class EditorResourcePreview : public Node {
GDCLASS(EditorResourcePreview, Node);
static EditorResourcePreview *singleton;
struct QueueItem {
Ref<Resource> resource;
String path;
ObjectID id;
StringName function;
Variant userdata;
};
List<QueueItem> queue;
Mutex preview_mutex;
Semaphore preview_sem;
Thread *thread;
volatile bool exit;
volatile bool exited;
struct Item {
Ref<Texture2D> preview;
Ref<Texture2D> small_preview;
int order;
uint32_t last_hash;
uint64_t modified_time;
};
int order;
Map<String, Item> cache;
void _preview_ready(const String &p_str, const Ref<Texture2D> &p_texture, const Ref<Texture2D> &p_small_texture, ObjectID id, const StringName &p_func, const Variant &p_ud);
void _generate_preview(Ref<ImageTexture> &r_texture, Ref<ImageTexture> &r_small_texture, const QueueItem &p_item, const String &cache_base);
static void _thread_func(void *ud);
void _thread();
Vector<Ref<EditorResourcePreviewGenerator>> preview_generators;
protected:
static void _bind_methods();
public:
static EditorResourcePreview *get_singleton();
//callback function is callback(String p_path,Ref<Texture2D> preview,Variant udata) preview null if could not load
void queue_resource_preview(const String &p_path, Object *p_receiver, const StringName &p_receiver_func, const Variant &p_userdata);
void queue_edited_resource_preview(const Ref<Resource> &p_res, Object *p_receiver, const StringName &p_receiver_func, const Variant &p_userdata);
void add_preview_generator(const Ref<EditorResourcePreviewGenerator> &p_generator);
void remove_preview_generator(const Ref<EditorResourcePreviewGenerator> &p_generator);
void check_for_invalidation(const String &p_path);
void start();
void stop();
EditorResourcePreview();
~EditorResourcePreview();
};
#endif // EDITORRESOURCEPREVIEW_H