我正在使用Qt 5.4.1
及其Qt Quick
模块处理应用程序。我从/images
目录加载了一些.svg图片,然后在ListView
中显示它们,这样就行了。但是,如何在每个加载的.svg图像周围添加阴影渐变?这是MWE:
import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2
import Qt.labs.folderlistmodel 2.1
Rectangle
{
id: ueMainWindow
visible: true
width: 800
height: 1280
color: "black"
property string ueRootDirectory:"/images"
property real ueImagesLoadProgress;
property bool ueImageLoading;
Rectangle
{
id: ueContainerThumbnails
antialiasing: true
color: "black"
anchors.bottom: ueMainWindow.bottom
width: ueMainWindow.width
height: 256
gradient: Gradient
{
GradientStop { position: 0.0; color: "black" }
GradientStop { position: 1.0; color: "grey" }
}
Text
{
id: ueTextImageName
antialiasing: true
color: "white"
anchors.horizontalCenter: ueContainerThumbnails.horizontalCenter
text: qsTr("TestApp")
}
ListView
{
id: ueViewThumbnails
antialiasing: true
orientation: ListView.Horizontal
anchors
{
topMargin: parent.height-(parent.height-50)
fill: parent
}
FolderListModel
{
id: ueModelImages
folder: "file://"+ueRootDirectory
nameFilters: ["*.svg"]
}
Component
{
id: ueDelegateImage
Image
{
id: ueImage
source: ueModelImages.folder + "/" + fileName
antialiasing: true
asynchronous: true
horizontalAlignment: Image.AlignHCenter
verticalAlignment: Image.AlignVCenter
width: 192
height: 192
fillMode: Image.PreserveAspectFit
}
}
focus: true
spacing: 10
leftMargin: 10
rightMargin: 35
visible: ueModelImages.status==FolderListModel.Ready
model: ueModelImages
delegate: ueDelegateImage
}
}
}
答案 0 :(得分:1)
好吧,你应该以某种方式将该渐变放入你的委托中。你可以:
Item
并将Rectangle
和Image
放入其中示例:
Component {
id: ueDelegateImage
Item { // container
Rectangle {
// gradient rectangle
}
Image {
// image
}
}
}
Image
放入Rectangle
示例:
Component {
id: ueDelegateImage
Rectangle {
// gradient rectangle acts as a container
Image {
// image
}
}
}
在这两种情况下,堆叠顺序都会在图像后面绘制渐变矩形。委托应该只有一个根元素,但不仅限于一个元素,您可以根据需要嵌套。