added setImageWithFilePath

ChangeLog.md

@@ -1,5 +1,11 @@
 # Change Log: #
 
+- 2018.06.14
+
+Added setImageWithFilePath().
+
+添加用图像文件路径设置图像的方式。
+
 - 2018.01.30:
 
 Added resizing selected rect frame function. And now, I realize all the function I wanted in this class. But it still have some performance issues, I will optimize or rewrite it when I can.

ImageWidget.cpp

@@ -29,7 +29,7 @@ ImageWidget::~ImageWidget()
     qImageZoomedImage = NULL;
 }
 
-void ImageWidget::setImageWithData(QImage img)
+void ImageWidget::setImageWithData(QImage &img)
 {
     if(!isImageCloned)
     {
@@ -73,6 +73,36 @@ void ImageWidget::setImageWithPointer(QImage *img)
     }
 }
 
+void ImageWidget::setImageWithFilePath(QString &path)
+{
+    if(!isImageCloned)
+    {
+        qImageContainer = new QImage;
+        isImageCloned = true;
+    }
+    if(path.isEmpty() || path.isNull())
+    {
+        isImageLoaded = false;
+        return;
+    }
+    else
+    {
+        qImageContainer->load(path);
+        if(qImageContainer->isNull())
+        {
+            isImageLoaded = false;
+            return;
+        }
+//        qDebug() << qImageContainer->bits() << img.bits();
+        isImageLoaded = true;
+        *qImageZoomedImage = qImageContainer->copy();
+        updateZoomedImage();
+        if(!isEnableRecordLastParameters)
+            setDefaultParameters();
+        update();
+    }
+}
+
 void ImageWidget::clear()
 {
     if(isImageLoaded)

ImageWidget.h

@@ -26,8 +26,9 @@ class ImageWidget :
     ImageWidget(QWidget *parent);
 	~ImageWidget();
 
-    void setImageWithData(QImage img);
+    void setImageWithData(QImage &img);
     void setImageWithPointer(QImage* img);
+    void setImageWithFilePath(QString &path);
     void setEnableOnlyShowImage(bool flag = false);
 
     // 发送点击位置坐标信号默认关闭，使用前需要开启

README.md

@@ -14,11 +14,11 @@ It's my first time to write a class and this class inherit from QWidget. It can
 ![](https://github.com/WangHongshuo/Readme_Images_Repository/blob/master/ImageWidget-Qt/ImageWidget-Qt_2.gif)
 ## Last Change: ##
 
-- 2018.01.30:
+- 2018.06.14
 
-Added resizing selected rect frame function. And now, I realize all the function I wanted in this class. But it still have some performance issues, I will optimize or rewrite it when I can.
+Added setImageWithFilePath().
 
-添加了改变选中框尺寸的功能，至此该类已经达到了我所需的所有功能，但是还有一些性能上的问题。将来有能力和时间的话会进行优化或重写。
+添加用图像文件路径设置图像的方式。
 
 - Full [Change Log](./ChangeLog.md)
 

selectrect.cpp

@@ -44,7 +44,7 @@ void SelectRect::receiveParentSizeChangedSignal()
 {
     ImageWidget *parentWidget = static_cast<ImageWidget *>(this->parent());
     this->setGeometry(0,0,parentWidget->width(),parentWidget->height());
-    qDebug() << this->geometry();
+//    qDebug() << this->geometry();
     drawImageTopLeftPos = parentWidget->getDrawImageTopLeftPos();
     update();
 }