Fitinview使用
http://www.cleartechfei.com/2024/07/qgraphicsview%e5%9b%be%e5%bd%a2%e8%a7%86%e5%9b%be%e6%a1%86%e6%9e%b6%e4%bd%bf%e7%94%a8%e4%b8%89%e4%bd%8d%e7%a7%bb%e5%8f%98%e6%8d%a2%e5%92%8c%e5%9b%be%e5%85%83%e5%ae%9a%e4%bd%8d/ WebNov 3, 2024 · 三、QPrintPreviewWidget使用. #include . 其实它就是个widget，用来显示打印预览界面的，和上面的QPrintPreviewDialog使用基本一致，只是它相当于只有QPrintPreviewDialog的下半部分，上半部分需要自己去实现，比如下面这个（WPS的打印预览界面）：.
Fitinview使用
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WebJul 17, 2024 · fitInView()功能是通过对视图View进行缩放和移动，让某个固定范围或者Item，完全显示在View当中，使用fitInView()的时候要确保指定的范围必须包含在Scene … WebMar 26, 2015 · FitInView. 原来只要计算好显示面积大小，然后使用该函数就可以完成效果，这样一来可以使用获得场景中items的boundingRect就可以了。. fitInView (moScneeRect); 通过这个函数又在需要解决将查找到 …
Web我使用 GraphicsScene 来包含一个图形和几个垂直矩形“标记”。 ... 我知道适用于包含 GraphicsView 的 fitInView(来自这里:Issue with fitInView of QGraphicsView when ItemIgnoresTransformations is on)，但我不明白为什么它需要一个参数。我只希望场景适合 GraphicsView(垂直但不是水平)那么 ... WebDec 14, 2024 · QGraphicsView fitInView方法：调整大小问题. 我的Qt应用程序中有一个自定义QGraphicsScene（我的类称为MainScene）。. 此场景包含一定数量的Rect项，就像 …
WebC++ (Cpp) fitInView - 30 examples found. These are the top rated real world C++ (Cpp) examples of fitInView extracted from open source projects. You can rate examples to help us improve the quality of examples. WebOct 13, 2012 · Sorted by: 1. sceneRect () may not be what you think it is unless you specifically set it. Also you are missing aspectRatioMode in fitInview call which can distort it image, sometimes resulting in "small" appearance. QGraphicsScene* scene = new QGraphicsScene (this); QGraphicsPixmapItem p = scene->addPixmap (QPixmap (qApp …
WebApr 15, 2024 · I have some QGraphicItems that are being loaded in at multiple predetermined X and Y coordinates. I have a function that is called fitInView and when the user clicks a button to call that function the view is scaled just fine, but If I try to call that function during loading It does not scale how I would like. I believe it has something to do …
如图所示情况下Item大于view显示的范围，那么我们需要按照一定比例缩放view来保证item完整显示，所用函数为： 缩放模式选择配置参数说明如下所示（来自Qt Assistant） 但是直接按照items的外轮廓适应窗口会得到如下结果： 只适应了横向或纵向中的一个，如何让横向纵向同时适应呢？ 使红色虚线框的横纵比 … See more 绘制或导入的QGraphicsItem可能会很大或很小，我们想要根据现实窗口的大小自适应显示item，基于个人对QGraphics Scene、Graphics Item、Graphics View关系1的理解，发现一种方法使用可以解决需求。 See more 以上就是今天要讲的内容，本文简单介绍了QGraphcisView自适应窗口大小的实现. 如果本文帮助到你了的话请帮忙点赞、评论、关注三连哦~ 源代码下载链接:QGraphicsViewAutofit.zip See more share price sibanye stillwaterWebNov 9, 2014 · When i click my btnFitView and executed: ui->graphicsView->fitInView (scene->sceneRect (),Qt::KeepAspectRatio); This is down scaling right? After fitInView () all lines are pixelated. It looks like a saw went over the lines on the image. For example: image of a car has lines, image of a texbook (letters become in very bad quality). share price shimano 7309WebMay 19, 2024 · 当使用Minimap布局的时候，按照官网的例子写，fitView没有用。 当不掉用fitView时： 当调用fitfitView时： 什么都没有渲染出来 我的代码是根据这个写的 … share price slaWebPyQt Examples（PyQt各种测试和例子） PyQt4 PyQt5. Contribute to PyQt5/PyQt development by creating an account on GitHub. share price slbWebTracking your health and fitness data can help you stay on course with your wellness plans. Plus, sharing your plans with friends keeps you motivated and accountable. ViewFit … share prices historical ukWeb与其使用 QGraphicsView::fitInView，不如将主图像保存在内存中并使用 QPixamp::scaled 创建图像的缩放版本，每次选择 FitInView，或用户放大/缩小。 然后用 setPixmap 在 QGraphicsPixmapItem 上设置这个 QPixmap . share prices historical dataWebJul 2, 2015 · If you're trying to fit the whole scene into the view with fitInView, what I think you're seeing is the borders of the mainWindow (QDeclarativeView). Look at removing those to prevent the white border displaying. It may be that setting the frameRectangle to a zeroed rect, or inheriting and setting the margins to zero will help. – share price slack