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Using Qt Designer in Java Integrated code 128 barcode in Java Using Qt Designer barcodes for .NET




How to generate, print barcode using .NET, Java sdk library control with example project source code free download:
7. Using Qt Designer using barcode integration for none control to generate, create none image in none applications.asp.net pdf-417 generation Figure 7.8 A Find and Replace dialog with some layouts Microsoft Windows Official Website rectangle only needs to touc h an object to select it, so drag up and right so that it touches the left-hand Vertical Spacer and the three layouts and nothing else (not the Vertical Line, for example). Now, release and click Form Lay Out Vertically. We can use the same selection technique to lay out the buttons.

Click the form to deselect everything. Now click near the bottom right of the form and drag so that the selection rectangle touches the Close button, the right-hand Vertical Spacer, and the other three buttons and nothing else. Now, release and click Form Lay Out Vertically.

We should now have a form with every widget in the left- or right-hand layout and a Vertical Line in the middle, as shown in Figure 7.9..

Figure 7.9 A Find and Replace dialog almost laid out We are now ready to lay out the form itself. Deselect everything by clicking the form. Now click Form Lay Out Horizontally.

The form will now look a bit too tall, so just drag the bottom of the form up until the form looks better. If you drag a lot, the spacers may disappear ; they are still there, but just too small to be seen..

Designing User Interfaces We can now preview the form to see what the layout really looks like, and during the preview we can drag the form s corner to make it smaller and larger to check that its resizing behavior is sensible. To preview, click Form Preview (or press Ctrl+R). It is also possible to preview in different styles using the Form Preview in menu option.

The form should now look like the one in Figure 7.10. If this is not the case, use Edit Undo to unwind your changes, and then lay things out again.

If you have to redo a layout, it sometimes helps to resize and reposition some of the widgets to give Qt Designer more of a clue about how you want the layout to go, especially when using grid layouts.. Figure 7.10 A laid out Find and Replace dialog We are now ready to set the labels buddies, set the form s tab order, do any connections we need, and name and save the form. We will start with buddies. Click Edit Edit Buddies to switch on buddy mode.

To set up buddy relationships we click a Label and drag to the widget we want to be its buddy. So in this example, we must click the Find what Label and drag to its Line Edit, and then do the same for the Replace with Label and its Line Edit, and then for the Syntax Label and the Combo Box. To leave buddy mode, press F3.

Now, no ampersands (&) should be visible in the Labels. Next we will set the form s tab order. Click Edit Edit Tab Order, and then click each numbered box in turn, in the tab order that you want.

To leave tab order mode, press F3. The Find, Replace, and Replace All buttons will need to be connected to our own custom methods; we will do this outside of Qt Designer. But the Close button can be connected to the dialog s reject() slot.

To do this, click Edit Edit Signals/Slots, and then drag from the Close button to the form. When you release, the Con gure Connection dialog will pop up. Click the (no-argument) clicked() signal from the list of signals on the left, and the reject() slot from the list of slots on the right, and then click OK.

To leave signal slot mode, press F3. Click the form to deselect everything. This also has the effect of making the property editor show the form s properties.

Set the dialog s object name (which will be used in its class name) to FindAndReplaceDlg , and set the windowTitle property to Find and Replace . Now click File Save to save the user interface, giving it a lename of findandreplacedlg.ui.

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