Pan/Move QPixmap in QLabel

**wysota** · 13th August 2014, 08:18

Maybe you should state the general idea of what you are doing? Maybe your whole app should be implemented in Graphics View? The background can be changed, that is not a problem, the real problem you are going to have anyway is that the top-most widget will handle all mouse input so no events will go to underlying widgets if you want to have any.

**ashtray4241** · 13th August 2014, 13:13

Originally Posted by wysota

Maybe you should state the general idea of what you are doing? Maybe your whole app should be implemented in Graphics View? The background can be changed, that is not a problem, the real problem you are going to have anyway is that the top-most widget will handle all mouse input so no events will go to underlying widgets if you want to have any.

Thanks for your inputs. I am right now trying the code with Graphics view.
We are in initial phase of our design, and right now we are concentrating on displaying the screens. I guess event handling will work fine as in my sample app, even when a QLabel was on top of QPushButton, the slot for clicked() of QPushButton was called when we clicked it. In any case, if later on I face such issues, I will come back here again for that.

We are basically designing a LCD panel display of a large MFP (Printer like those Xerox machines). Earlier we were using PEG, but since PEG is quite limited, we are moving to QT and so we are tasked with the porting.

Edit: If I have forgotten to say it yet wysota, I really appreciate your replies. They are quick and makes me do some analytical thinking.

**faldzip** · 14th August 2014, 08:50

Originally Posted by ashtray4241

We are basically designing a LCD panel display of a large MFP (Printer like those Xerox machines). Earlier we were using PEG, but since PEG is quite limited, we are moving to QT and so we are tasked with the porting.

Do you mean something like this: http://wirthconsultingb4youbuy.files...hscreen-jp.jpg
I don't know your exact requirements but I would consider:
1. QGraphicsView for this task if the whole project idea suits better to widgets then to QtQuick
2. QtQuick if you want some nice UI like on the screenshot I've pasted. If your device is OpenGL capable, then you can use QtQuick 2 (which is available in Qt >= 5.0) with QtQuick.Controls and stunning animations and so on

if there is no OpenGL then you can still use QtQuick 1 (which is no OpenGL accelerated so you should check the performance, but if you do not want any fancy animations, than it should work fine)