1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* SPDX-FileCopyrightText: 2019 Dmitry Kazakov <dimula73@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KISASYNCHRONOUSSTROKEUPDATEHELPER_H
#define KISASYNCHRONOUSSTROKEUPDATEHELPER_H
#include <QObject>
#include <QTimer>
#include "kis_types.h"
#include "kis_stroke_job_strategy.h"
#include "kritaui_export.h"
class KisStrokesFacade;
class KRITAUI_EXPORT KisAsynchronousStrokeUpdateHelper : public QObject
{
Q_OBJECT
public:
class UpdateData : public KisStrokeJobData {
public:
UpdateData(bool _forceUpdate,
Sequentiality sequentiality = SEQUENTIAL,
Exclusivity exclusivity = NORMAL)
: KisStrokeJobData(sequentiality, exclusivity),
forceUpdate(_forceUpdate)
{}
KisStrokeJobData* createLodClone(int levelOfDetail) override {
return new UpdateData(*this, levelOfDetail);
}
protected:
UpdateData(const UpdateData &rhs, int levelOfDetail)
: KisStrokeJobData(rhs),
forceUpdate(rhs.forceUpdate)
{
Q_UNUSED(levelOfDetail);
}
public:
bool forceUpdate = false;
};
using UpdateDataFactory = std::function<KisStrokeJobData*(bool)>;
public:
KisAsynchronousStrokeUpdateHelper();
~KisAsynchronousStrokeUpdateHelper();
/**
* Initialize the update helper and start the steam of the
* update events. This is just a simple combination of
* initUpdateStreamLowLevel() and startUpdateStreamLowLevel().
*/
void startUpdateStream(KisStrokesFacade *strokesFacade, KisStrokeId strokeId);
/**
* A low-level version of startUpdateStream(...), initializes
* the helper but doesn't start the stream of update events.
* That is needed for the tool to issue endUpdateStream()
* signals, when the action has been ended **before** the
* stroke actually managed to initialize itself.
*/
void initUpdateStreamLowLevel(KisStrokesFacade *strokesFacade, KisStrokeId strokeId);
/**
* Start the stream of the update events on **already
* initialized** helper. One should call
* initUpdateStreamWithoutStart() before calling
* startUpdateStream().
*/
void startUpdateStreamLowLevel();
void endUpdateStream();
void cancelUpdateStream();
bool isActive() const;
void setCustomUpdateDataFactory(UpdateDataFactory factory);
private Q_SLOTS:
void slotAsyncUpdateCame(bool forceUpdate = false);
private:
KisStrokesFacade *m_strokesFacade;
QTimer m_updateThresholdTimer;
KisStrokeId m_strokeId;
UpdateDataFactory m_customUpdateFactory;
};
#endif // KISASYNCHRONOUSSTROKEUPDATEHELPER_H
|
