添加或删除QWidget不影响任何其他部件

0

的问题

我有一个PyQT应用程序,与一个工具条,一组按钮,并底排的额外的按钮。 我想添加一个文本编辑的下面的底部排,用户可以隐藏或展示。 我会喜欢的文字编辑延伸部分的底部时,正在显示但是,当用户隐藏了它,我愿,底部除去,而不会影响的高度、宽度或调整其它任何按钮。 想象一下只是采取了一对剪刀的文字编辑部分时,用户隐藏它但后胶合它回来时,用户希望回来。 这是甚至可以做到在PyQt? 最近的我发现是执行以下调整所有的按钮。

from PyQt5.QtCore import Qt, QPoint, QTimer, QThread, QSize
from PyQt5.QtGui import QFont, QImage, QPainter, QPen, QPixmap
from PyQt5.QtWidgets import (
    QAction, QApplication, QCheckBox, QFileDialog, QHBoxLayout, QLabel,
    QMainWindow, QMenu, QMenuBar, QPlainTextEdit, QPushButton, QSpacerItem,
    QSizePolicy, QFrame,
    QTextEdit, QVBoxLayout, QWidget, QGridLayout, QToolButton, QComboBox
)
from PyQt5.QtWidgets import QApplication
import sys


class AppWindow(QMainWindow):
    def __init__(self, main_widget):
        super(AppWindow, self).__init__()
        self.main_widget = main_widget
        self.setCentralWidget(self.main_widget)


class AppWidget(QWidget):
    def __init__(self, panels=[]):
        super(AppWidget, self).__init__()
        self.panels = panels
        self.main_layout = QVBoxLayout(self)

        self.setSizePolicy(
            QSizePolicy.MinimumExpanding,
            QSizePolicy.MinimumExpanding
        )

        self.toolbar_frame = QFrame(self)
        self.toolbar_frame_layout = QHBoxLayout(self.toolbar_frame)
        self.toolbar_frame_layout.addStretch()
        self.log_button = QToolButton(self.toolbar_frame)
        self.log_button.setText('Toggle Log')

        self.toolbar_frame_layout.addWidget(self.log_button)
        self.toolbar_frame.setLayout(self.toolbar_frame_layout)

        self.project_frame = QFrame(self)

        self.project_frame_layout = QHBoxLayout(self.project_frame)
        self.project_dropdown = QComboBox(self.project_frame)
        self.project_dropdown.setMinimumSize(20, 0)
        self.project_refresh = QToolButton(self.project_frame)
        self.project_refresh.setText('Refresh')
        self.project_frame_layout.addWidget(self.project_dropdown)
        self.project_frame_layout.addWidget(self.project_refresh)
        self.project_frame.setLayout(self.project_frame_layout)

        self.panel_frame = QFrame(self)
        self.panel_frame_layout = QVBoxLayout(self.panel_frame)
        for panel in panels:
            self.panel_frame_layout.addWidget(panel)
        self.panel_frame.setLayout(self.panel_frame_layout)

        self.bottom_frame = QFrame(self)
        self.bottom_frame_layout = QHBoxLayout(self.bottom_frame)
        self.bottom_frame_layout.addStretch()
        self.sg_button = QToolButton()
        self.sg_button.setText('Extra Stuff')
        self.bottom_frame_layout.addWidget(self.sg_button)
        self.bottom_frame.setLayout(self.bottom_frame_layout)

        self.log = QTextEdit()
        self.log_frame = QFrame(self)
        self.log_frame_layout = QHBoxLayout(self.log_frame)
        self.log_frame_layout.addWidget(self.log)
        self.log_frame.setLayout(self.log_frame_layout)

        self.main_layout.addWidget(self.toolbar_frame)
        self.main_layout.addWidget(self.project_frame)
        self.main_layout.addWidget(self.panel_frame)
        self.main_layout.addWidget(self.bottom_frame)
        self.app_widgets = QWidget(self)
        self.app_widgets.setLayout(self.main_layout)
        self.log_widget = QWidget(self)
        self.log_widget.setLayout(self.log_frame_layout)

        self.total_layout = QVBoxLayout(self)
        self.total_layout.addWidget(self.app_widgets)
        self.total_layout.addWidget(self.log_widget)

        self.setLayout(self.total_layout)

        self.log_button.clicked.connect(self.toggle_log)

    def toggle_log(self):
        if self.log_widget.isHidden():
            self.log_widget.show()
            QTimer.singleShot(0, self.resize_show)
        else:
            self.log_widget.hide()
            QTimer.singleShot(0, self.resize_hide)
        # self.adjustSize() Also does not work.
    def resize_show(self):
        self.resize(self.width(), self.sizeHint().height())

    def resize_hide(self):
        self.resize(self.width(), self.minimumSizeHint().height())


class AppPanel(QWidget):
    def __init__(self, sections=[]):
        super(AppPanel, self).__init__()
        self.setSizePolicy(
            QSizePolicy.MinimumExpanding,
            QSizePolicy.MinimumExpanding
        )
        self.layout = QVBoxLayout(self)
        self.setLayout(self.layout)
        self.sections = sections
        for section in self.sections:
            self.layout.addWidget(section)


class AppSection(QWidget):
    def __init__(self, buttons=[]):
        super(AppSection, self).__init__()
        self.setSizePolicy(
            QSizePolicy.MinimumExpanding,
            QSizePolicy.MinimumExpanding
        )
        self.buttons = buttons
        self.layout = QGridLayout()
        for i, button in enumerate(self.buttons):
            col = i % 2
            row = i // 2
            self.layout.addWidget(button, row, col)
        self.setLayout(self.layout)


class AppButton(QToolButton):
    def __init__(self, text=''):
        super(AppButton, self).__init__()
        self.setText(text)
        self.setFocusPolicy(Qt.NoFocus)
        self.setIconSize(QSize(50, 50))
        self.setToolButtonStyle(Qt.ToolButtonTextBesideIcon)
        self.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    app_buttons = [AppButton(text='APPS ' + str(i)) for i in range(5)]
    custom_btns = [AppButton(text='Custom ' + str(i)) for i in range(5)]
    app_section = AppSection(buttons=app_buttons)
    custom_section = AppSection(buttons=custom_btns)
    panels = [AppPanel(sections=[app_section, custom_section])]
    ex = AppWidget(panels=panels)
    lw = AppWindow(main_widget=ex)
    lw.show()
    app.exec_()
pyqt pyqt5 python
2021-11-23 02:11:29
2

最好的答案

0

调整大小的部件本身并不是一个有效的解决方案,因为它仅仅复盖的几何设置的布局没有通知父母的部件。

这也是重要的,因为你不应该调整部件基于其提示单独的时表示:如果你增加尺寸的窗口,同时记录被隐藏,然后再次显示它,它将不会占用所有可用的空间。

什么你需要做的就是访问的顶级别窗口,迫使其布局奠定了其内容的再利用其提供的调整。

    def resize_hide(self):
        self.window().layout().activate()
        self.window().resize(
            self.window().width(), 
            self.window().minimumSizeHint().height()
        )
2021-11-23 11:10:30
0

你可以设定对准政策为你的顶部件:

[...]
self.total_layout.setAlignment(self.app_widgets, Qt.AlignTop)

self.setLayout(self.total_layout)
[...]

app_widget 不会调整了当你在隐藏你的文字编辑。

2021-11-23 08:53:16

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