.image_view { z-index: 3; overflow: hidden; color: #bec2c9; border-style: solid; }
时间: 2024-04-04 12:33:35 浏览: 20
这是一段 CSS 样式代码,用于设置一个类名为 "image_view" 的元素的样式。其中:
- z-index: 3; 表示该元素的堆叠层级为 3,即在其他元素之上。
- overflow: hidden; 表示该元素超出部分隐藏。
- color: #bec2c9; 表示该元素的文本颜色为 #bec2c9。
- border-style: solid; 表示该元素的边框样式为实线。
相关问题
0 : div.animate__animated.animate__fadeIn.threebox_image_box 1 : div.animate__animated.animate__fadeIn.threebox_image_box 2 : div.animate__animated.animate__fadeIn.threebox_image_box 3 : div.animate__animated.animate__fadeIn.threebox_image_box 4 : div.animate__animated.animate__fadeIn.threebox_image_box 5 : div.animate__animated.animate__fadeIn.threebox_image_box 6 : div.animate__animated.animate__fadeIn.threebox_image_box 7 : div.animate__animated.animate__fadeIn.threebox_image_box 设置隐藏
可以使用`v-for`指令结合`:class`绑定来动态渲染多个元素,并且通过Vue的数据驱动特性来控制它们的显示与隐藏。具体实现可以参考以下代码:
```html
<template>
<div>
<div
v-for="(item, index) in elements"
:key="index"
:class="[item.visible ? 'animate__animated animate__fadeIn' : 'animate__animated animate__fadeOut', 'threebox_image_box']"
>
这是第 {{ index + 1 }} 个元素
</div>
<button @click="hideElements">隐藏元素</button>
</div>
</template>
<script>
export default {
data() {
return {
elements: [
{ visible: true },
{ visible: true },
{ visible: true },
{ visible: true },
{ visible: true },
{ visible: true },
{ visible: true },
{ visible: true }
]
};
},
methods: {
hideElements() {
for (let i = 0; i < this.elements.length; i++) {
this.elements[i].visible = false;
}
}
}
};
</script>
<style>
.threebox_image_box {
display: block;
}
.animate__animated {
animation-duration: 1s;
}
.animate__fadeIn {
animation-name: fadeIn;
}
.animate__fadeOut {
animation-name: fadeOut;
}
@keyframes fadeIn {
from {
opacity: 0;
}
to {
opacity: 1;
}
}
@keyframes fadeOut {
from {
opacity: 1;
}
to {
opacity: 0;
}
}
</style>
```
在上面的代码中,我们首先定义了一个`elements`数组,它包含了需要动态渲染的多个元素,并且每个元素都有一个`visible`属性,用于控制它们的显示与隐藏。然后在模板中使用`v-for`指令循环渲染多个元素,并且通过`:class`绑定来动态设置元素的`class`属性,以便实现渐变动画效果。最后在方法中,我们通过修改`elements`数组中每个元素的`visible`属性,来控制它们的显示与隐藏。
import os from PyQt5.QtCore import Qt from PyQt5.QtGui import QPixmap, QIcon from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QHBoxLayout, QTreeView, QFileSystemModel class ImageViewer(QWidget): def init(self, folder_path): super().init() self.folder_path = folder_path self.image_dict = {} self.current_image = None self.setWindowTitle("Image Viewer") self.setFixedSize(1000, 600) self.image_label = QLabel(self) self.image_label.setAlignment(Qt.AlignCenter) self.tree_view = QTreeView() self.tree_view.setMinimumWidth(250) self.tree_view.setMaximumWidth(250) self.model = QFileSystemModel() self.model.setRootPath(folder_path) self.tree_view.setModel(self.model) self.tree_view.setRootIndex(self.model.index(folder_path)) self.tree_view.setHeaderHidden(True) self.tree_view.setColumnHidden(1, True) self.tree_view.setColumnHidden(2, True) self.tree_view.setColumnHidden(3, True) self.tree_view.doubleClicked.connect(self.tree_item_double_clicked) self.main_layout = QHBoxLayout(self) self.main_layout.addWidget(self.tree_view) self.main_layout.addWidget(self.image_label) self.load_images() self.update_image() def load_images(self): for file_name in os.listdir(self.folder_path): if file_name.lower().endswith((".jpg", ".jpeg", ".png", ".gif", ".bmp")): file_path = os.path.join(self.folder_path, file_name) self.image_dict[file_name] = file_path current_image = list(self.image_dict.keys())[0] def update_image(self): if self.current_image is not None: pixmap = QPixmap(self.image_dict[self.current_image]) self.image_label.setPixmap(pixmap.scaled(self.width() - self.tree_view.width(), self.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation)) def tree_item_double_clicked(self, index): file_name = self.model.fileName(index) if file_name in self.image_dict: self.current_image = file_name self.update_image() def keyPressEvent(self, event): if event.key() == Qt.Key_A: self.previous_image() elif event.key() == Qt.Key_D: self.next_image() elif event.key() in [Qt.Key_1, Qt.Key_2, Qt.Key_3, Qt.Key_4, Qt.Key_5]: self.save_text_file(event.key() - Qt.Key_0) def previous_image(self): if self.current_image is not None: file_names = list(self.image_dict.keys()) current_index = file_names.index(self.current_image) if current_index > 0: self.current_image = file_names[current_index - 1] else: self.current_image = file_names[-1] self.update_image() def next_image(self): if self.current_image is not None: file_names = list(self.image_dict.keys()) current_index = file_names.index(self.current_image) if current_index < len(file_names) - 1: self.current_image = file_names[current_index + 1] else: self.current_image = file_names[0] self.update_image() def save_text_file(self, number): if self.current_image is not None: file_name = self.current_image txt_file_path = os.path.join(self.folder_path, os.path.splitext(file_name)[0] + ".txt") with open(txt_file_path, "w") as file: file.write(str(number)) if name == "main": import sys app = QApplication(sys.argv) viewer = ImageViewer("D:/图片/wallpaper") viewer.show() sys.exit(app.exec_())这份代码实现不了使用键盘的A键向上翻页以及D键向下翻页,也实现不了键盘数字键生成相应txt文档,帮我分析一下错在哪里
这份代码在实现键盘事件的时候,使用了错误的函数名称。应该使用`keyPressEvent`而不是`key_press_event`函数。另外,在`save_text_file`函数中,应该先判断当前图片是否为`None`,再执行后续的代码。以下是修改后的代码:
```
import os
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QIcon
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QVBoxLayout, QHBoxLayout, QTreeView, QFileSystemModel
class ImageViewer(QWidget):
def __init__(self, folder_path):
super().__init__()
self.folder_path = folder_path
self.image_dict = {}
self.current_image = None
self.setWindowTitle("Image Viewer")
self.setFixedSize(1000, 600)
self.image_label = QLabel(self)
self.image_label.setAlignment(Qt.AlignCenter)
self.tree_view = QTreeView()
self.tree_view.setMinimumWidth(250)
self.tree_view.setMaximumWidth(250)
self.model = QFileSystemModel()
self.model.setRootPath(folder_path)
self.tree_view.setModel(self.model)
self.tree_view.setRootIndex(self.model.index(folder_path))
self.tree_view.setHeaderHidden(True)
self.tree_view.setColumnHidden(1, True)
self.tree_view.setColumnHidden(2, True)
self.tree_view.setColumnHidden(3, True)
self.tree_view.doubleClicked.connect(self.tree_item_double_clicked)
self.main_layout = QHBoxLayout(self)
self.main_layout.addWidget(self.tree_view)
self.main_layout.addWidget(self.image_label)
self.load_images()
self.update_image()
def load_images(self):
for file_name in os.listdir(self.folder_path):
if file_name.lower().endswith((".jpg", ".jpeg", ".png", ".gif", ".bmp")):
file_path = os.path.join(self.folder_path, file_name)
self.image_dict[file_name] = file_path
self.current_image = list(self.image_dict.keys())[0]
def update_image(self):
if self.current_image is not None:
pixmap = QPixmap(self.image_dict[self.current_image])
self.image_label.setPixmap(pixmap.scaled(self.width() - self.tree_view.width(), self.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
def tree_item_double_clicked(self, index):
file_name = self.model.fileName(index)
if file_name in self.image_dict:
self.current_image = file_name
self.update_image()
def keyPressEvent(self, event):
if event.key() == Qt.Key_A:
self.previous_image()
elif event.key() == Qt.Key_D:
self.next_image()
elif event.key() in [Qt.Key_1, Qt.Key_2, Qt.Key_3, Qt.Key_4, Qt.Key_5]:
self.save_text_file(event.key() - Qt.Key_0)
def previous_image(self):
if self.current_image is not None:
file_names = list(self.image_dict.keys())
current_index = file_names.index(self.current_image)
if current_index > 0:
self.current_image = file_names[current_index - 1]
else:
self.current_image = file_names[-1]
self.update_image()
def next_image(self):
if self.current_image is not None:
file_names = list(self.image_dict.keys())
current_index = file_names.index(self.current_image)
if current_index < len(file_names) - 1:
self.current_image = file_names[current_index + 1]
else:
self.current_image = file_names[0]
self.update_image()
def save_text_file(self, number):
if self.current_image is not None:
file_name = self.current_image
txt_file_path = os.path.join(self.folder_path, os.path.splitext(file_name)[0] + ".txt")
with open(txt_file_path, "w") as file:
file.write(str(number))
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
viewer = ImageViewer("D:/图片/wallpaper")
viewer.show()
sys.exit(app.exec_())
```