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
97
98
99
100
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick 2.0
Item {
id: rootItem
property variant input
property variant output
property variant sourceRect
visible: false
Component.onCompleted: evaluateInput()
onInputChanged: evaluateInput()
onSourceRectChanged: evaluateInput()
function evaluateInput() {
if (input == undefined) {
output = input
}
else if (sourceRect != undefined && sourceRect != Qt.rect(0, 0, 0, 0) && !isQQuickShaderEffectSource(input)) {
proxySource.sourceItem = input
output = proxySource
proxySource.sourceRect = sourceRect
}
else if (isQQuickItemLayerEnabled(input)) {
output = input
}
else if ((isQQuickImage(input) && !hasTileMode(input) && !hasChildren(input))) {
output = input
}
else if (isQQuickShaderEffectSource(input)) {
output = input
}
else {
proxySource.sourceItem = input
output = proxySource
proxySource.sourceRect = Qt.rect(0, 0, 0, 0)
}
}
function isQQuickItemLayerEnabled(item) {
if (item.hasOwnProperty("layer")) {
var l = item["layer"]
if (l.hasOwnProperty("enabled") && l["enabled"].toString() == "true")
return true
}
return false
}
function isQQuickImage(item) {
var imageProperties = [ "fillMode", "progress", "asynchronous", "sourceSize", "status", "smooth" ]
return hasProperties(item, imageProperties)
}
function isQQuickShaderEffectSource(item) {
var shaderEffectSourceProperties = [ "hideSource", "format", "sourceItem", "mipmap", "wrapMode", "live", "recursive", "sourceRect" ]
return hasProperties(item, shaderEffectSourceProperties)
}
function hasProperties(item, properties) {
var counter = 0
for (var j = 0; j < properties.length; j++) {
if (item.hasOwnProperty(properties [j]))
counter++
}
return properties.length == counter
}
function hasChildren(item) {
if (item.hasOwnProperty("childrenRect")) {
if (item["childrenRect"].toString() != "QRectF(0, 0, 0, 0)")
return true
else
return false
}
return false
}
function hasTileMode(item) {
if (item.hasOwnProperty("fillMode")) {
if (item["fillMode"].toString() != "0")
return true
else
return false
}
return false
}
ShaderEffectSource {
id: proxySource
live: rootItem.input != rootItem.output
hideSource: false
smooth: true
visible: false
}
}
|
