ImageWatch的QImage natvis [英] QImage natvis for ImageWatch

问题描述

嗨。

我在使用带有QImage的C ++ ImageWatch时遇到了一些问题。首先，这是我的.natvis

I have got some issues using the ImageWatch for c++ with QImage. First, here is my .natvis

  <Type Name="QImage">
    <AlternativeType Name="QImage&lt;*&gt;"/>
    <UIVisualizer ServiceId="{A452AFEA-3DF6-46BB-9177-C0B08F318025}" Id="1" />
  </Type>

  <Type Name="QImage">
    <Expand>
      <Synthetic Name="[type]">
        <DisplayString>UINT8</DisplayString>
      </Synthetic>
      <Synthetic Name="[channels]">
        <DisplayString>BGRA</DisplayString>
      </Synthetic>
      <Item Name="[width]">d-&gt;width</Item>
      <Item Name="[height]">d-&gt;height</Item>
      <Item Name="[data]">d-&gt;data</Item>
      <Item Name="[stride]">d-&gt;bytes_per_line</Item>
    </Expand>
  </Type>  

现在我收到错误：

" Fehler：" Klasse" QImageData"" hat keinen会员"" width""。$
    Fehler beim Auswerten von"d-> width" im Kontext von Typ" const ImageTest.exe！QImage"。"

"Fehler: "Klasse "QImageData"" hat keinen Member ""width"".
    Fehler beim Auswerten von "d->width" im Kontext von Typ "const ImageTest.exe!QImage"."

这意味着d指针没有成员" with"。但在接下来的一行中我得到了：

Which means the d-pointer has no member "with". But in the next line i got:

"Der Ausdruck"d-> width" im Typkontext" QImage" wurde erfolgreich analysiert。"

"Der Ausdruck "d->width" im Typkontext "QImage" wurde erfolgreich analysiert."

这意味着"d-> with"成功分析了。

Which means "d->with" was successfull analised.

所以我的下一步是我想"好吧，d指针是QImageData。"所以我还将QImageData添加到natvis文件中。

So my next step was that i thought "Ok, the d-pointer is a QImageData." So i also added QImageData to the natvis file.

  <Type Name="QImageData">
    <AlternativeType Name="QImageData&lt;*&gt;"/>
    <UIVisualizer ServiceId="{A452AFEA-3DF6-46BB-9177-C0B08F318025}" Id="1" />
  </Type>

  <Type Name="QImageData">
    <Expand>
      <Synthetic Name="[type]">
        <DisplayString>UINT8</DisplayString>
      </Synthetic>
      <Synthetic Name="[channels]">
        <DisplayString>BGRA</DisplayString>
      </Synthetic>
      <Item Name="[width]">width</Item>
      <Item Name="[height]">height</Item>
      <Item Name="[data]">data</Item>
      <Item Name="[stride]">bytes_per_line</Item>
    </Expand>
  </Type>

但它没有帮助。

之后我创建了一个小类来访问我需要的数据。

After that i created a small class to access the data i need.

class MemPic
{
public:
    MemPic(const QImage& image)
    {
        width = image.width();
        height = image.height();
        data = image.constBits();
        bpl = image.bytesPerLine();
    }
    virtual ~MemPic() = default;

private:
    int width;
    int height;
    const unsigned char* data;
    int bpl;
};

并在.natvis中插入一个定义。

And inserted a definition into the .natvis.

  <Type Name="MemPic">
    <AlternativeType Name="MemPic&lt;*&gt;"/>
    <UIVisualizer ServiceId="{A452AFEA-3DF6-46BB-9177-C0B08F318025}" Id="1" />
  </Type>

  <Type Name="MemPic">
    <Expand>
      <Synthetic Name="[type]">
        <DisplayString>UINT8</DisplayString>
      </Synthetic>
      <Synthetic Name="[channels]">
        <DisplayString>BGRA</DisplayString>
      </Synthetic>
      <Item Name="[width]">width</Item>
      <Item Name="[height]">height</Item>
      <Item Name="[data]">data</Item>
      <Item Name="[stride]">bpl</Item>
    </Expand>
  </Type>

这一次有效。我可以在ImageWatch中看到图像。

And this time it works. I can see the image in ImageWatch.

但这对我来说不是解决方案。还有什么我可以做的来看QImage中的图像吗？

But this is not the solution for me. Is there anything else i can do to see the image from QImage?

谢谢

启

推荐答案

由于此问题与属于QT的QImage更相关，我建议您将此问题发布在
QT论坛，您将获得更多专业支持。

Since this issue is more related to QImage which belongs to QT, I recommend you post this issue at QT forum where you will get more professional support.

您的理解与合作将不胜感激。

Your understanding and cooperation will be grateful.

 

问候，

Fletcher

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