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当根据数据来创建控件并布局时#xff0c;如果数据更新#xff0c;那么之前创建的控件便需要删除后重新创建布局。该文主要说明将原来的布局和控件删除#xff0c;重新创建并布局。
示例
先看一下ui文件#xff1a; 下面是实现代码#xff1a; void StatusViewDi…引言
当根据数据来创建控件并布局时如果数据更新那么之前创建的控件便需要删除后重新创建布局。该文主要说明将原来的布局和控件删除重新创建并布局。
示例
先看一下ui文件 下面是实现代码 void StatusViewDialog::initSourcesView()
{deleteSourcesOrignalLayoutCtrls();QWidget *sourcesWidget ui-scrollAreaWidgetContents;QVBoxLayout *vLayout new QVBoxLayout(sourcesWidget);vLayout-setSpacing(5);vLayout-setContentsMargins(5,5,5,5);int page 12;QLabel *curLabel new QLabel(QStringLiteral(当前页));QLineEdit *curEdit new QLineEdit(QString::number(page));curEdit-setReadOnly(true);curEdit-setFixedWidth(40);QLabel *totalLabel new QLabel(QStringLiteral(总页数));QLineEdit *totalEdit new QLineEdit(QString::number(page));totalEdit-setReadOnly(true);totalEdit-setFixedWidth(40);QHBoxLayout *smallLayouth new QHBoxLayout;smallLayouth-addWidget(curLabel);smallLayouth-addWidget(curEdit);smallLayouth-addWidget(totalLabel);smallLayouth-addWidget(totalEdit);smallLayouth-addStretch();vLayout-addLayout(smallLayouth);//设置控件样式QString strLabelStyle QLabel{font-size: 17px;font-family: Microsoft YaHei;color: #FFFFFF;};curLabel-setStyleSheet(strLabelStyle);totalLabel-setStyleSheet(strLabelStyle);QString strEditStyle QLineEdit{font-size: 17px;font-family: Microsoft YaHei;color: #FFFFFF;border: 1px solid #01B5EF;border-radius: 2px;background: rgba(8, 7, 91, 0.08);};curEdit-setStyleSheet(strEditStyle);totalEdit-setStyleSheet(strEditStyle);QListQHBoxLayout* hlayoutList;for (int i 0 ; i 3 ; i) {QLabel * inputLabel new QLabel(QStringLiteral(幼儿园));QLineEdit *inputEdit new QLineEdit(QStringLiteral(小孩子));inputEdit-setReadOnly(true);inputEdit-setFixedWidth(150);QLabel *onlineLabel new QLabel(QStringLiteral(是小孩子));QString boolStr true;QLineEdit *onlineEdit new QLineEdit(boolStr);onlineEdit-setReadOnly(true);onlineEdit-setFixedWidth(80);QLabel *stateLabel new QLabel(QStringLiteral(能独立));boolStr false;QLineEdit *stateEdit new QLineEdit(boolStr);stateEdit-setReadOnly(true);stateEdit-setFixedWidth(80);QLabel *modeLabel new QLabel(QStringLiteral(可爱不));QLineEdit *modeEdit new QLineEdit(QStringLiteral(可爱));modeEdit-setReadOnly(true);modeEdit-setFixedWidth(180);QLabel *nameLabel new QLabel(QStringLiteral(天才));QLineEdit *nameEdit new QLineEdit(QStringLiteral(天才));nameEdit-setReadOnly(true);nameEdit-setFixedWidth(200);QLabel *tempretrueLabel new QLabel(QStringLiteral(温度));qreal tempretrue 12.12;QLineEdit *tempretrueEdit new QLineEdit(QString::number(tempretrue));tempretrueEdit-setReadOnly(true);tempretrueEdit-setFixedWidth(50);inputLabel-setStyleSheet(strLabelStyle);onlineLabel-setStyleSheet(strLabelStyle);stateLabel-setStyleSheet(strLabelStyle);modeLabel-setStyleSheet(strLabelStyle);nameLabel-setStyleSheet(strLabelStyle);tempretrueLabel-setStyleSheet(strLabelStyle);inputEdit-setStyleSheet(strEditStyle);onlineEdit-setStyleSheet(strEditStyle);stateEdit-setStyleSheet(strEditStyle);modeEdit-setStyleSheet(strEditStyle);nameEdit-setStyleSheet(strEditStyle);tempretrueEdit-setStyleSheet(strEditStyle);QHBoxLayout *hLayout new QHBoxLayout;hLayout-addWidget(inputLabel);hLayout-addWidget(inputEdit);hLayout-addWidget(onlineLabel);hLayout-addWidget(onlineEdit);hLayout-addWidget(stateLabel);hLayout-addWidget(stateEdit);hLayout-addWidget(modeLabel);hLayout-addWidget(modeEdit);hLayout-addWidget(nameLabel);hLayout-addWidget(nameEdit);hLayout-addWidget(tempretrueLabel);hLayout-addWidget(tempretrueEdit);vLayout-addLayout(hLayout);}adjustScrollWidgetHeight(3,ui-scrollAreaWidgetContents);
}void StatusViewDialog::initSeatsView()
{deleteSeatsOrignalLayoutCtrls();int row 0;QWidget *widget ui-scrollAreaWidgetContents_2;QVBoxLayout *vlayout new QVBoxLayout(widget);vlayout-setSpacing(5);vlayout-setContentsMargins(5,5,5,5);QListQHBoxLayout* everyHlayoutList;for (int i 0 ; i 4 ; i) {QLabel *curLabel new QLabel(QStringLiteral(当前页));int page 11;QLineEdit *curEdit new QLineEdit(QString::number(page));curEdit-setReadOnly(true);curEdit-setFixedWidth(40);QLabel *totalLabel new QLabel(QStringLiteral(总页数));QLineEdit *totalEdit new QLineEdit(QString::number(page));totalEdit-setReadOnly(true);totalEdit-setFixedWidth(40);QLabel *unidNameLabel new QLabel(QStringLiteral(名称));QLineEdit *unidNameEdit new QLineEdit(QStringLiteral(席位));unidNameEdit-setReadOnly(true);unidNameEdit-setFixedWidth(130);QLabel *unisIdLabel new QLabel(QStringLiteral(大小));QLineEdit *unisIdEdit new QLineEdit(QStringLiteral(23));unisIdEdit-setReadOnly(true);unisIdEdit-setFixedWidth(300);QLabel *userNameLabel new QLabel(QStringLiteral(用户名));QLineEdit *userNameEdit new QLineEdit(QStringLiteral(深度));userNameEdit-setReadOnly(true);userNameEdit-setFixedWidth(150);QString strLabelStyle QLabel{font-size: 17px;font-family: Microsoft YaHei;color: #FFFFFF;};QString strEditStyle QLineEdit{font-size: 17px;font-family: Microsoft YaHei;color: #FFFFFF;border: 1px solid #01B5EF;border-radius: 2px;background: rgba(8, 7, 91, 0.08);};curLabel-setStyleSheet(strLabelStyle);totalLabel-setStyleSheet(strLabelStyle);unidNameLabel-setStyleSheet(strLabelStyle);unisIdLabel-setStyleSheet(strLabelStyle);userNameLabel-setStyleSheet(strLabelStyle);curEdit-setStyleSheet(strEditStyle);totalEdit-setStyleSheet(strEditStyle);unidNameEdit-setStyleSheet(strEditStyle);unisIdEdit-setStyleSheet(strEditStyle);userNameEdit-setStyleSheet(strEditStyle);QHBoxLayout *hlayout1 new QHBoxLayout;hlayout1-addWidget(curLabel);hlayout1-addWidget(curEdit);hlayout1-addWidget(totalLabel);hlayout1-addWidget(totalEdit);hlayout1-addWidget(unidNameLabel);hlayout1-addWidget(unidNameEdit);hlayout1-addWidget(unisIdLabel);hlayout1-addWidget(unisIdEdit);hlayout1-addWidget(userNameLabel);hlayout1-addWidget(userNameEdit);everyHlayoutList.append(hlayout1);row;QString strGroupStyle QGroupBox{border: 1px solid #01B5EF;border-radius:2px;margin-top: 0.5px;}QGroupBox::title{subcontrol-origin: margin;subcontrol-position: top left;left: 10px;margin-left: 2px;padding: 0 0px;};QGroupBox *groupBox new QGroupBox;groupBox-setStyleSheet(strGroupStyle);QListQHBoxLayout* hlayoutList;for (int j 0 ; j 3; j) {QHBoxLayout *layoutStatus new QHBoxLayout;hlayoutList.append(layoutStatus);QLabel *ipLabel new QLabel(QStringLiteral(IP));QLineEdit *ipEdit new QLineEdit(QStringLiteral(129.128.0.1));ipEdit-setReadOnly(true);QLabel *tempretureLabel new QLabel(QStringLiteral(温度));QLineEdit *tempretureEdit new QLineEdit(QStringLiteral(24));tempretureEdit-setReadOnly(true);QLabel *onlineLabel new QLabel(QStringLiteral(是否在线));QString temp true;QLineEdit *onlineEdit new QLineEdit(temp);onlineEdit-setReadOnly(true);ipLabel-setStyleSheet(strLabelStyle);tempretureLabel-setStyleSheet(strLabelStyle);onlineLabel-setStyleSheet(strLabelStyle);ipEdit-setStyleSheet(strEditStyle);tempretureEdit-setStyleSheet(strEditStyle);onlineEdit-setStyleSheet(strEditStyle);layoutStatus-addWidget(ipLabel);layoutStatus-addWidget(ipEdit);layoutStatus-addWidget(tempretureLabel);layoutStatus-addWidget(tempretureEdit);layoutStatus-addWidget(onlineLabel);layoutStatus-addWidget(onlineEdit);row;}QVBoxLayout *vGroupboxLayout new QVBoxLayout(groupBox);for (int i 0 ; i hlayoutList.size() ; i) {vGroupboxLayout-addLayout(hlayoutList[i]);}QHBoxLayout *hGroupLayout new QHBoxLayout;hGroupLayout-addWidget(groupBox);everyHlayoutList.append(hGroupLayout);}for (int j 0 ; j everyHlayoutList.size() ; j) {vlayout-addLayout(everyHlayoutList[j]);}adjustScrollWidgetHeight(row,ui-scrollAreaWidgetContents_2);
}void StatusViewDialog::deleteSourcesOrignalLayoutCtrls()
{if (ui-scrollAreaWidgetContents-layout() ! nullptr) {QLayout *oldLayout ui-scrollAreaWidgetContents-layout();delete oldLayout;}QListQWidget* widgetList ui-scrollAreaWidgetContents-findChildrenQWidget*();foreach (QWidget* ctrl, widgetList) {delete ctrl;}
}void StatusViewDialog::deleteSeatsOrignalLayoutCtrls()
{if (ui-scrollAreaWidgetContents_2-layout() ! nullptr) {delete ui-scrollAreaWidgetContents_2-layout();}//现删除groupbox,然后删除窗口上剩余的控件QListQGroupBox* groupBox ui-scrollAreaWidgetContents_2-findChildrenQGroupBox*();foreach (QGroupBox *gb, groupBox) {delete gb;}//删除其它的标签和行编辑器QListQWidget* widgetList ui-scrollAreaWidgetContents_2-findChildrenQWidget*();foreach (QWidget* ctrl, widgetList) {delete ctrl;}
}void StatusViewDialog::adjustScrollWidgetSize(QWidget *widget,QWidget *changedWidget)
{QGridLayout *gridLayout new QGridLayout(widget);//使tab页中的窗口和tab页一样大gridLayout-setContentsMargins(0,0,0,0);gridLayout-addWidget(changedWidget,0,0,1,1);
}void StatusViewDialog::adjustScrollWidgetHeight(int num,QWidget *widget)
{int height (num 1) * 35;//平均每行的高度为35widget-setFixedHeight(height);
}这里是tabwidget控件中创建控件并布局先删除之前的控件和布局然后重新创建控件并布局。这里删除的时候先获取之前的布局然后删除布局再删除控件控件删除时是按照类型来删除的主要由其父窗口来看类型找到某一类的控件然后返回对应的列表然后删除另外创建控件后根据控件的数量调整布局所在窗口的大小。
