image-viewer | Qt based image viewer widget | Widget library
kandi X-RAY | image-viewer Summary
kandi X-RAY | image-viewer Summary
A minimalistic Qt image viewer widget, with zoom and pixel color picking.
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Trending Discussions on image-viewer
QUESTION
I would like to add navigation buttons on container with image, so the user can navigate to previous or next image.
...ANSWER
Answered 2021-Jun-05 at 21:41You can use the following code:
QUESTION
I’ve been trying to build a simple svg editor to try out svelte. Its been going great until I built a select box for the element to drag along with the active selected element. While dragging that selected element the selection box lags behind the element itself. I’m not sure whats wrong.
I’ve tried a few things like using the store to pass location data and putting events on a parent element so everything calculates on the same component in case that might be the issue but still it doesn’t work. I’m not sure what I’m doing wrong. I’ve been trying to figure this out for a while but don’t have any idea what might be the issue.
You can check my codesandbox simplified demo of it here: codesandbox.io
...ANSWER
Answered 2021-May-17 at 03:45I think this is causing your issue:
In elementMoveMoveHandler
you are updating the element's position here:
QUESTION
I'm coding a super basic canvas-based image viewer. I'm trying to implement image panning. I want to be able to hold my mouse button down and move the mouse to pan the image around. I'm using the mouse up and down events to enter and leave a "panning mode". My mouse move handler never seems to see that the panning boolean changes from false to true, though.
I've tried writing my functions as arrow functions instead, thinking maybe it was something to do with the fact that these are DOM handlers (issues with this
or something), but that didn't seem to make any difference.
I have a heads-up display that shows the panning state and it updates accordingly, but my console logs within the mouse move handler always show the variable as false.
How can I get this panning boolean value to update as you'd expect within my mouse move handler?
Here is my trimmed down code, which is testable in my codepen link further down ...
...ANSWER
Answered 2021-Apr-22 at 00:23you have at least two solutions here:
Solution 1:
declare listener on canvas:
QUESTION
I'm making an Android game. I want to make it move like the picture. I think I need a different method than the method of moving to the touch position or the method such as the joystick, but I can't feel it. Any help would be appreciated.
...ANSWER
Answered 2021-Feb-05 at 08:15Your class that suppose to control movement should implement InputProcessor
interface.
https://libgdx.badlogicgames.com/ci/nightlies/docs/api/com/badlogic/gdx/InputProcessor.html
Basically, you have to provide methods which will be called when screen touching or dragging happens.
You'll get, as those methods parameters values of i.e. where touch happened, how much user dragged his finger and stuff line that.
Don't forget to set your new input processor class with
QUESTION
This is my product image viewer component.html. In this component the template reference variable #divZoomed is used to display the zoom.
...ANSWER
Answered 2020-May-25 at 08:51You cannot set z-index
direcly on your zoom component, since it's at a deeper level in the DOM than the text. You need to set the z-index higher up in the DOM.
I just set it in the col-md-5
container
QUESTION
I am trying to implement something like google arts and culture image zoom and pan.
I tried working with ng2-image-viewer library but can't seem to be able to work it out.
Following is the snippet i tried.
...ANSWER
Answered 2019-Oct-10 at 18:10Follow this:
1- To install this library, run:
QUESTION
I have used the code posted here by SebasianKruse https://forums.xamarin.com/discussion/74168/full-screen-image-viewer-with-pinch-to-zoom-pan-to-move-tap-to-show-captions-for-xamarin-forms/p2 to be able to pinch zoom and pan my image. It works great in Android, but in IOS I can't zoom nor pan.
I tried to set a breakpoint inside the OnPanUpdated
but its never reached on IOS.
here is my code:
xaml:
...ANSWER
Answered 2020-Apr-06 at 08:00There won't be any difference event though testing it on a real physical device.
This is because Xcode 11.4 introduced a new protocol member to UIGestureRecognizerDelegate and our initial proposed default value for ShouldReceiveEvent is not playing well with the world.
Our product team has fixed this in Xamarin.iOS 13.16.0.13: https://github.com/xamarin/Xamarin.Forms/issues/10162#issuecomment-607585466 You could manually download and install the pkg on the Mac. But VS on Windows has released a new version now we can only temporarily develop it using VS for Mac after installing the new Xamarin iOS version.
QUESTION
It has been more than a week, i have tried almost all option on Kofax Total Agility 7.6 "Transformation Designer"
I have a requirement of:
- Locating and Extracting the table content of a document(English or French)
To be able to do that i follow steps:
- Open "Transformation Designer"
- Created an extraction project, attached a sample document (having 5 pages)
- Navigate to project settings->Table tab
- Trying to create new "table header pack"
Note: All training material covers only single page document where extraction is quite straight forward
Exact question is How should someone train "table header pack" when table is on the second or third page of a documentAny help?
...ANSWER
Answered 2020-Mar-16 at 16:33Have not received anything from forum about the same. So in my case i will create zone, for each Table Cell than map it to table schema by code: Internal or External
QUESTION
Recently, I am trying to use PyQT5 to make a PDF viewer. I adapted the code provided in this post (Image Viewer GUI fails to properly map coordinates for mouse press event). I created a QScrollArea that contains a QVBoxLayout in order to dynamically add multiple QLables into the scroll area. Then I will load the PDF pages as QImage (pixmap) into each individual QLabel. I have successfully loaded and display the PDF pages in the QLabels. However, I encountered a problem. The QLabel in the vertical layout with the PDF page images cannot expand to show the whole page (according to the size of QImage pixmap). So the outcome of using this way will be only showing a small part of page. I cannot scroll down all the page as well. I expected that the PDF pages can be loaded into QLabels and well expanded according to the contents. Then, the Qlabels can vertically grouped in the layout. The layout can auto expand and resize according to the QLable. Finally, I can scroll down the scrollArea to read all the PDF pages. Just like other PDF reader does.
Additionally, how can I capture the mouse position in each QLabel? Ultimately, I want to let the user to click on the specific location on the page to add the text on that position. After I got the coordinates from the QLabel and specific page number, I will pass the information to PyMuPDF to write the text to textBox and export a PDF file.
Here is my code so far:
...ANSWER
Answered 2020-Feb-25 at 09:50Do not use QScrollArea + QLabel as it complicates the task a lot, instead it is better to use QGraphicsView, QGraphicsScene and items. Based on my previous answer and implemented the following logic, I have also created the clicked signal that carries the information of the pressed page and the position of the click on the page:
QUESTION
I've created a simple radio button group per the BS4 documentation example, but whenever I select a button, I can't help but notice that the active button border juts out a bit on the right side. From what I can tell, it seems like it's trying to make room for "extra" blank space to the right of the button's input text.
This same "jutting out" to the right occurs on all buttons selected within the group, not just the center button.
...ANSWER
Answered 2019-Dec-03 at 08:03just apply CSS to radio buttons as per the below snippet. don't worry about the display:none
CSS property your radio functionality will works fine that does not cause any problem to your functionality.
I hope your problem will be solved.
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