Add a auto mkpath method

Signed-off-by: goldenhawking <goldenhawking@163.com>

qtviewer_planetosm/osm_frame_widget.cpp

@@ -406,12 +406,27 @@ void osm_frame_widget::on_pushButton_saveToFile_clicked()
 {
 	QSettings settings(QCoreApplication::applicationFilePath()+".ini",QSettings::IniFormat);
 	QString strLastSaveImgDir = settings.value("history/last_save_img_dir","./").toString();
-	QString newfm = QFileDialog::getSaveFileName(this,tr("save to image"),strLastSaveImgDir,
+
+	QString strDefaultFilename = "Image_" +
+			QDateTime::currentDateTime()
+			.toString("yyyyMMddHHmmss") +".png";
+
+	QFileDialog dlg_save(this,tr("save to image"),strLastSaveImgDir,
 								 "Images (*.png *.bmp *.jpg);;All files(*.*)"
 								 );
-	if (newfm.size()>2)
+	dlg_save.setFileMode(QFileDialog::AnyFile);
+	dlg_save.setAcceptMode(QFileDialog::AcceptSave);
+	dlg_save.selectFile(strDefaultFilename);
+	if (dlg_save.exec()==QDialog::Accepted)
 	{
-		if (true == ui->widget_mainMap->saveToImage(newfm))
-			 settings.setValue("history/last_save_img_dir",newfm);
+		QStringList fms = dlg_save.selectedFiles();
+		foreach (QString newfm,  fms)
+		{
+			if (true == ui->widget_mainMap->saveToImage(newfm))
+			{
+				QFileInfo info(newfm);
+				settings.setValue("history/last_save_img_dir",info.absolutePath());
+			}
+		}
 	}
 }

qtviewer_planetosm/osmtiles/layer_interface.h

@@ -7,11 +7,9 @@
 #include <QVariant>
 #include <QMap>
 #define OSMLayerInterface_iid "org.goldenhawkingStudio.OSMViewer_iid.LayerInterface"
-
 #define QTVOSM_DEBUG(MSG) qDebug()<<"QTVOSM Debug>"<< MSG <<"\n\t"<<__FUNCTION__<<":"<<__FILE__<<__LINE__
 #define QTVOSM_WARNING(MSG) qWarning()<<"QTVOSM Debug>"<< MSG <<"\n\t"<<__FUNCTION__<<":"<<__FILE__<<__LINE__
 #define QTVOSM_FATAL(MSG) qFatal()<<"QTVOSM Debug>"<< MSG <<"\n\t"<<__FUNCTION__<<":"<<__FILE__<<__LINE__
-
 class osm_frame_widget;
 class qtaxviewer_planetosm;
 class qtwidget_planetosm;

qtviewer_planetosm/osmtiles/tilesviewer.cpp

@@ -5,6 +5,8 @@
 #include <QDebug>
 #include <math.h>
 #include <QPixmap>
+#include <QFileInfo>
+#include <QDir>
 #include "layer_interface.h"
 namespace QTVOSM{
 	tilesviewer::tilesviewer(QWidget *parent) :
@@ -986,6 +988,9 @@ namespace QTVOSM{
 
 	bool tilesviewer::saveToImage(const QString & strFm)
 	{
+		QFileInfo info(strFm);
+		QDir dir;
+		dir.mkpath(info.absolutePath());
 		QPixmap m = this->grab();
 		return m.save(strFm);
 	}