一、前言
对于现在做前端开发人员来说,FlatUI肯定不陌生,最近几年扁平化的设计越来越流行,大概由于现在PC端和移动端的设备的分辨率越来越高,扁平化反而看起来更让人愉悦,而通过渐变色产生的质感色彩反而没有扁平化来得亲切。
Flat UI是基于Bootstrap之上进行二次开发的扁平化前端框架,他提供了动感、时尚的风格色调搭配,简洁、炫丽的功能组件,同时还提供了更为平滑的js交互动画,可以称得上前端扁平化设计框架的优秀代表之一。
既然是扁平化设计框架的优秀代表,当然需要在自己项目中应用应用,本人最早使用VB开发,而后转为C#开发,最后转为Qt开发,都是因为公司项目需要,根据需要不断学习新的编程框架,语言都是相通的,举一反三,以前用C#写的vista时钟控件和vista日历控件,稍微改改就转移成了Qt写的对应控件,非常方便,只要掌握了思想,熟练了一门语言和框架之后,其他的学起来特别快。
Qt中的qss机制,和css极为相似,感觉就是脱胎于css,用qss来实现Qt界面样式不是一般的方便,而是相当的爽,在看到FlatUI这样的精美的扁平化设计样式后,难以抑制手痒痒,就想用qss实现类似的风格。
二、代码思路
QString FlatUI::setPushButtonQss(QPushButton *btn, int radius, int padding,
const QString &normalColor,
const QString &normalTextColor,
const QString &hoverColor,
const QString &hoverTextColor,
const QString &pressedColor,
const QString &pressedTextColor)
{
QStringList list;
list.append(QString("QPushButton{border-style:none;padding:%1px;border-radius:%2px;color:%3;background:%4;}")
.arg(padding).arg(radius).arg(normalTextColor).arg(normalColor));
list.append(QString("QPushButton:hover{color:%1;background:%2;}")
.arg(hoverTextColor).arg(hoverColor));
list.append(QString("QPushButton:pressed{color:%1;background:%2;}")
.arg(pressedTextColor).arg(pressedColor));
QString qss = list.join("");
btn->setStyleSheet(qss);
return qss;
}
QString FlatUI::setLineEditQss(QLineEdit *txt, int radius, int borderWidth,
const QString &normalColor,
const QString &focusColor)
{
QStringList list;
list.append(QString("QLineEdit{border-style:none;padding:3px;border-radius:%1px;border:%2px solid %3;}")
.arg(radius).arg(borderWidth).arg(normalColor));
list.append(QString("QLineEdit:focus{border:%1px solid %2;}")
.arg(borderWidth).arg(focusColor));
QString qss = list.join("");
txt->setStyleSheet(qss);
return qss;
}
QString FlatUI::setProgressQss(QProgressBar *bar, int barHeight,
int barRadius, int fontSize,
const QString &normalColor,
const QString &chunkColor)
{
QStringList list;
list.append(QString("QProgressBar{font:%1pt;background:%2;max-height:%3px;border-radius:%4px;text-align:center;border:1px solid %2;}")
.arg(fontSize).arg(normalColor).arg(barHeight).arg(barRadius));
list.append(QString("QProgressBar:chunk{border-radius:%2px;background-color:%1;}")
.arg(chunkColor).arg(barRadius));
QString qss = list.join("");
bar->setStyleSheet(qss);
return qss;
}
QString FlatUI::setSliderQss(QSlider *slider, int sliderHeight,
const QString &normalColor,
const QString &grooveColor,
const QString &handleBorderColor,
const QString &handleColor)
{
int sliderRadius = sliderHeight / 2;
int handleWidth = (sliderHeight * 3) / 2 + (sliderHeight / 5);
int handleRadius = handleWidth / 2;
int handleOffset = handleRadius / 2;
QStringList list;
list.append(QString("QSlider::horizontal{min-height:%1px;}").arg(sliderHeight * 2));
list.append(QString("QSlider::groove:horizontal{background:%1;height:%2px;border-radius:%3px;}")
.arg(normalColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::add-page:horizontal{background:%1;height:%2px;border-radius:%3px;}")
.arg(normalColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::sub-page:horizontal{background:%1;height:%2px;border-radius:%3px;}")
.arg(grooveColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::handle:horizontal{width:%3px;margin-top:-%4px;margin-bottom:-%4px;border-radius:%5px;"
"background:qradialgradient(spread:pad,cx:0.5,cy:0.5,radius:0.5,fx:0.5,fy:0.5,stop:0.6 %1,stop:0.8 %2);}")
.arg(handleColor).arg(handleBorderColor).arg(handleWidth).arg(handleOffset).arg(handleRadius));
//偏移一个像素
handleWidth = handleWidth + 1;
list.append(QString("QSlider::vertical{min-width:%1px;}").arg(sliderHeight * 2));
list.append(QString("QSlider::groove:vertical{background:%1;width:%2px;border-radius:%3px;}")
.arg(normalColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::add-page:vertical{background:%1;width:%2px;border-radius:%3px;}")
.arg(grooveColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::sub-page:vertical{background:%1;width:%2px;border-radius:%3px;}")
.arg(normalColor).arg(sliderHeight).arg(sliderRadius));
list.append(QString("QSlider::handle:vertical{height:%3px;margin-left:-%4px;margin-right:-%4px;border-radius:%5px;"
"background:qradialgradient(spread:pad,cx:0.5,cy:0.5,radius:0.5,fx:0.5,fy:0.5,stop:0.6 %1,stop:0.8 %2);}")
.arg(handleColor).arg(handleBorderColor).arg(handleWidth).arg(handleOffset).arg(handleRadius));
QString qss = list.join("");
slider->setStyleSheet(qss);
return qss;
}
QString FlatUI::setRadioButtonQss(QRadioButton *rbtn, int indicatorRadius,
const QString &normalColor,
const QString &checkColor)
{
int indicatorWidth = indicatorRadius * 2;
QStringList list;
list.append(QString("QRadioButton::indicator{border-radius:%1px;width:%2px;height:%2px;}")
.arg(indicatorRadius).arg(indicatorWidth));
list.append(QString("QRadioButton::indicator::unchecked{background:qradialgradient(spread:pad,cx:0.5,cy:0.5,radius:0.5,fx:0.5,fy:0.5,"
"stop:0.6 #FFFFFF,stop:0.7 %1);}").arg(normalColor));
list.append(QString("QRadioButton::indicator::checked{background:qradialgradient(spread:pad,cx:0.5,cy:0.5,radius:0.5,fx:0.5,fy:0.5,"
"stop:0 %1,stop:0.3 %1,stop:0.4 #FFFFFF,stop:0.6 #FFFFFF,stop:0.7 %1);}").arg(checkColor));
QString qss = list.join("");
rbtn->setStyleSheet(qss);
return qss;
}
QString FlatUI::setScrollBarQss(QWidget *scroll, int radius, int min, int max,
const QString &bgColor,
const QString &handleNormalColor,
const QString &handleHoverColor,
const QString &handlePressedColor)
{
//滚动条离背景间隔
int padding = 0;
QStringList list;
//handle:指示器,滚动条拉动部分 add-page:滚动条拉动时增加的部分 sub-page:滚动条拉动时减少的部分 add-line:递增按钮 sub-line:递减按钮
//横向滚动条部分
list.append(QString("QScrollBar:horizontal{background:%1;padding:%2px;border-radius:%3px;min-height:%4px;max-height:%4px;}")
.arg(bgColor).arg(padding).arg(radius).arg(max));
list.append(QString("QScrollBar::handle:horizontal{background:%1;min-width:%2px;border-radius:%3px;}")
.arg(handleNormalColor).arg(min).arg(radius));
list.append(QString("QScrollBar::handle:horizontal:hover{background:%1;}")
.arg(handleHoverColor));
list.append(QString("QScrollBar::handle:horizontal:pressed{background:%1;}")
.arg(handlePressedColor));
list.append(QString("QScrollBar::add-page:horizontal{background:none;}"));
list.append(QString("QScrollBar::sub-page:horizontal{background:none;}"));
list.append(QString("QScrollBar::add-line:horizontal{background:none;}"));
list.append(QString("QScrollBar::sub-line:horizontal{background:none;}"));
//纵向滚动条部分
list.append(QString("QScrollBar:vertical{background:%1;padding:%2px;border-radius:%3px;min-width:%4px;max-width:%4px;}")
.arg(bgColor).arg(padding).arg(radius).arg(max));
list.append(QString("QScrollBar::handle:vertical{background:%1;min-height:%2px;border-radius:%3px;}")
.arg(handleNormalColor).arg(min).arg(radius));
list.append(QString("QScrollBar::handle:vertical:hover{background:%1;}")
.arg(handleHoverColor));
list.append(QString("QScrollBar::handle:vertical:pressed{background:%1;}")
.arg(handlePressedColor));
list.append(QString("QScrollBar::add-page:vertical{background:none;}"));
list.append(QString("QScrollBar::sub-page:vertical{background:none;}"));
list.append(QString("QScrollBar::add-line:vertical{background:none;}"));
list.append(QString("QScrollBar::sub-line:vertical{background:none;}"));
QString qss = list.join("");
scroll->setStyleSheet(qss);
return qss;
}
三、效果图
四、开源主页
以上作品完整源码下载都在开源主页,会持续不断更新作品数量和质量,欢迎各位关注。
- 国内站点:https://gitee.com/feiyangqingyun/QWidgetDemo
- 国际站点:https://github.com/feiyangqingyun/QWidgetDemo
- 个人主页:https://blog.csdn.net/feiyangqingyun
- 知乎主页:https://www.zhihu.com/people/feiyangqingyun/
来源:oschina
链接:https://my.oschina.net/feiyangqingyun/blog/4277902