Qt 界面上字体自适应控件大小 - 随控件缩放

#include "widget.h" #include "ui_widget.h" #include <QResizeEvent> #include <QFont> #include <QDebug> Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); //this->seF this->width = this->size().width(); this->height = this->size().height(); this->fontsize = ui->pushButton->font().pointSize(); } Widget::~Widget() { delete ui; } void Widget::resizeEvent(QResizeEvent *event) { int w = event->size().width(); int h = event->size().height(); double scale = 1.0; scale = 1.0 * w/this->width; if(scale < 1.0 * h/this->height){ scale = 1.0 * h/this->height; } QFont font = ui->pushButton->font(); int new_fontsize = scale * this->fontsize; if(new_fontsize != ui->pushButton->font().pointSize()){ font.setPointSize(new_fontsize); ui->pushButton->setFont(font); qDebug()<< this->fontsize << " " << new_fontsize; } }