[AssistantTool]_10_时序计算面板
Posted 暮色1994
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了[AssistantTool]_10_时序计算面板相关的知识，希望对你有一定的参考价值。
[AssistantTool]_10_时序计算面板
创建时间：20210115 14:35:00
添加时序计算页面
- 主要分两部分
-
上部分是采用grid layout形式排布参数
-
-
-
添加时序图和对应输入框
-
下半部分是一个ScrollArea, 然后放入Frame控件，并且将宽高固定，这样图片和对应位置的时序参数可以固定下来，并且在缩放窗口的时候，可以有滚动条保证各位置的图形查看和参数填写。
-
添加时序图，作为frame背景，这样可以放上对应输入框来友好的获参数输入。
QFrame#frame{ border-image: url(:/assert/2021-07-31-11-04-30.png); } -
在frame空间中，在需要输入或显示时序的地方，放置输入框。
-
运行效果如下
解决字符串转double时的精度损失
- 将字符串中小数点移动指定位，转成int类型，下面是字符创左右移动的函数。
//获取放大后的字符串
QString TimmingForm::getZoomIn(QString str,int n)
{
QString zoomStr;
int index = str.indexOf(".");
if(index < 0)
{
index=0;
zoomStr = str;
}
else
{
zoomStr+= str.left(index);
index = str.length()-index-1;
zoomStr += str.right(index);
}
for(int i=0; i < (n - index); i++)
zoomStr+="0";
return zoomStr;
};
//获取缩小后的字符串
QString TimmingForm::getZoomOut(QString str,int n)
{
if(str.isEmpty())
return "";
QString zoomStr = str;
if(str.left(1) == "-")
{
zoomStr.remove(0,1);
}
if(n >0)
{
if(zoomStr.length() <= n)
{
int len = (n +1 - zoomStr.length() );
for(int i =0 ; i < len;i++)
zoomStr = "0"+zoomStr;
}
if(zoomStr.length() > n)
{
int index = zoomStr.length()-n;
zoomStr.insert(index,".");
for(int i =0 ;i < zoomStr.length(); i++)
{
index = zoomStr.length()-1- i;
if(index < 0)
break;
if(zoomStr.mid(index,1) == "0")
{
zoomStr.remove(index,1);
i--;
}
else if(zoomStr.mid(index,1) == ".")
{
zoomStr.remove(index,1);
break;
}
else
{
break;
}
}
}
}
if(str.left(1) == "-")
{
zoomStr.insert(0,"-");
}
return zoomStr;
};
添加文件读写功能
-
从文件读取参数，构造lcd_param结构体，然后存储到list链表中，并在comm中添加此选项名称
-
从comm选择选项个数，从list获取对应参数，覆盖写入文件中。
void TimmingForm::loadFileToCombo() { update_lineEdit_TimeData(); update_lineEdit_ParamData(); update_lineEdit_TimmingData(); QString itemName; struct lcd_param *lcd; QString fileName = "./timming.txt"; ui->statusBar->setText("提示信息:loadFileToCombo"); QFile file(fileName); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) return; QTextStream stream(&file); while(!stream.atEnd()) { lcd = new struct lcd_param; stream >> itemName >> lcd->name; stream >> itemName >> lcd->param_pclk; stream >> itemName >> lcd->param_vt; stream >> itemName >> lcd->param_vBlank; stream >> itemName >> lcd->param_vActive; stream >> itemName >> lcd->param_vb; stream >> itemName >> lcd->param_vf; stream >> itemName >> lcd->param_vs; stream >> itemName >> lcd->param_ht; stream >> itemName >> lcd->param_hBlank; stream >> itemName >> lcd->param_hActive; stream >> itemName >> lcd->param_hb; stream >> itemName >> lcd->param_hf; stream >> itemName >> lcd->param_hs; stream >> itemName >> lcd->param_hs_hps; stream >> itemName >> lcd->param_vs_fps; stream >> itemName >> lcd->param_t5_hbp; stream >> itemName >> lcd->param_t5_hspw; stream >> itemName >> lcd->param_t5_vbp; stream >> itemName >> lcd->param_t5_vspw; if( lcd->param_pclk != 0 && lcd->param_vt != 0 && lcd->param_ht != 0 ) { list.append(lcd); ui->comboBox->addItem(lcd->name); } } file.close(); } void TimmingForm::saveComboToFile() { struct lcd_param *lcd; ui->statusBar->setText("提示信息:saveComboToFile"); if( ui->comboBox->count() <= 0 ) { ui->statusBar->setText("Combo is empty, not save param"); return; } QString fileName = "./timming.txt"; QFile file(fileName); if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) return; qDebug() << "comboBox->count()=" << ui->comboBox->count() << " list.count()=" << list.count(); QTextStream stream(&file); for( int i = 0; i < ui->comboBox->count() && i < list.count(); i++ ) { lcd = list.at(i); stream << "param_name " << lcd->name << "\\n"; stream << "param_pclk " << lcd->param_pclk << "\\n"; stream << "param_vt " << lcd->param_vt << "\\n"; stream << "param_vBlank " << lcd->param_vBlank << "\\n"; stream << "param_vActive " << lcd->param_vActive << "\\n"; stream << "param_vb " << lcd->param_vb << "\\n"; stream << "param_vf " << lcd->param_vf << "\\n"; stream << "param_vs " << lcd->param_vs << "\\n"; stream << "param_ht " << lcd->param_ht << "\\n"; stream << "param_hBlank " << lcd->param_hBlank << "\\n"; stream << "param_hActive " << lcd->param_hActive << "\\n"; stream << "param_hb " << lcd->param_hb << "\\n"; stream << "param_hf " << lcd->param_hf << "\\n"; stream << "param_hs " << lcd->param_hs << "\\n"; stream << "param_hs_hps " << lcd->param_hs_hps << "\\n"; stream << "param_vs_fps " << lcd->param_vs_fps << "\\n"; stream << "param_t5_hbp " << lcd->param_t5_hbp << "\\n"; stream << "param_t5_hspw " << lcd->param_t5_hspw << "\\n"; stream << "param_t5_vbp " << lcd->param_t5_vbp << "\\n"; stream << "param_t5_vspw " << lcd->param_t5_vspw << "\\n"; } file.close(); } -
存储下来的文件示例 479.885x720.811@59.9302
param_name 0_479.885x720.811@59.9302 param_pclk 2.7027e+07 param_vt 525.05 param_vBlank 45.1652 param_vActive 479.885 param_vb 30.1446 param_vf 9.01967 param_vs 6.00094 param_ht 858.919 param_hBlank 138.108 param_hActive 720.811 param_hb 59.5946 param_hf 16.0811 param_hs 62.4324 param_hs_hps 31466.3 param_vs_fps 59.9302 param_t5_hbp 122.027 param_t5_hspw 62.4324 param_t5_vbp 36.1455 param_t5_vspw 6.00094
以上是关于[AssistantTool]_10_时序计算面板的主要内容，如果未能解决你的问题，请参考以下文章