Look & Feel - ComboBox Background.

[Lindon]

this gets a strange result:

ComboBoxLAF.registerFunction("drawPopupMenuBackground", function(g, obj)
{
	//var a = obj.area;
	g.setColour(Colours.red);
    g.drawRect([0,0,2000,2000], 1);
});

you get this:

-- see the little red line on the left side?

ComboBoxLAF.registerFunction("drawPopupMenuBackground", function(g, obj)
{
	//var a = obj.area;
	g.setColour(Colours.red);
    g.fillRect([0,0,2000,2000]);
});

predictably gets this:

but this:

ComboBoxLAF.registerFunction("drawPopupMenuBackground", function(g, obj)
{
	//var a = obj.area;
	g.setColour(0x00000000);
    g.fillRect([0,0,2000,2000]);
});

gets us back to this:

[David Healey]

@Lindon I'm pretty sure you can't make the background of the combo box transparent. It will give a white outline (the panel is opaque basically). You can make the individual items have a transparent background though.

[Lindon]

@d-healey - yeah that's the position I'm rapidly reaching. Thanks. I'm not sure this is a bug but its certainly a feature it would be nice to have,....

[DabDab]

BG CB transparent is not a bug. Transparent is not possible right now with out altering the source Code. How ever it will be a good feature request to have CB transparent BG.

[David Healey]

I would like to give this one a bump. According to everything I read on the JUCE forum, the popup menu is by default opaque, unless you set PopupMenu::backgroundColourId to a colour with an alpha < 1.0.

I've been through all the HISE popup look and feel functions I could find and set this property to transparentWhite but still the combo boxes show a white background.

@Christoph-Hart Any ideas?

[Chazrox]

If you use a viewport and check 'useList'. Then you can make a transparent list area. You just have to also make a label of some sort showing the currently loaded index/value, so that the user can click to reveal the viewport list. Pretty much what a combobox is. Little hacky but I got what I wanted without doing anything too crazy. I prefer to do this when the list is very long, you can set it to open at a set size and have a nice scrollbar.

[dannytaurus]

@David-Healey I just had a go at fixing this. Is that what you mean?

HiseSnippet 1112.3ocsVs2aaaCDmJIJKwacqEne.H7e4roYH+pIcACMO8pwxCi4rhMDDTPKcxhKRjFRTMwXneH12z8MH6ndXKO6klZfI.av6Eue2wi2w9QRGHNVFQLpb0jw.w3qLGLQn7O1mwEjdmPL9ZyyYwJHhlw5nIiYwwfKwvX8eRyvX6MHoe+8aNhEvDNvLVDx6jbG3LdHWMia+C9YdPPWlKbEOrj1sOnmiTbrLPlf3YcSaxXlysrQvELsZqYRdKK1mX7sl1scX60zqSqVu9061wcH330.FtqCytCyqCC41l0tSi1DiMO0kqjQCTLEDia5QR2IC7k2Ixbv63w7gAflnAY.54L1ji84At8KRNwDhwF8mkpVOKU8Ryy4t7o7mkxddp.5LKJmzLV6wfTiOCHYTBRajAoWXNvIhOVMShFOeoYOAdB5wvylxPISWxZ+05lGKQMDp5gragtQHwTKp0z11hh+sy9UpfmOwJZ.yi9izBSbh.LRNS5vBNSJu8PgaW.BpoUGUrdDLhqqe5lHbTbonVU2H1c8kiSFeNHRNBOhGEISDtUsndE5LxhJG9G6T4OqPwuQ0iAUVcQsp12am+UEcQlXOrd5W.GUsqssrsz.F+cCJ9iOQTzSAg+29+CrHJCiXjUcFFs3dVvdLy8PjCJ7Z1012P+NZSKJ65FSW07F52SaqW0Jc0M6uPHo2Vd7a4i7CveJvk9FZln35ih.PP+gozCCRf4CacpCb0QOSLJ.pkiHK5d6TBmJ3dUAPy0HCt6YUDCHnmsNE1Md0LFstYIHu.U24yUyfEJuKVaTq5IfGKIPgI1FsqaOUtNyeHFpBv8JDVowuFeVSQoEsZ.3opVbBlU1crLbn7H48MJU7MRikvwRAnc3TMzVNkPCnEJOwhhc1u37lJEWHUvkhZ5i7sq7wJz+sHOukJSiiHYP.DsTw5FbQOlg0DIgCgHK7PRexVnHdgd9tDa9z5R3jkVJonTzSvUWNFxo6JCb0290qWrmBIOup6tjiPTUUZukmm2aoHuR3t5VKSSyjzPnbyexu16DlhUrY39h9ZLDo35Px3D3C3vgrFWaadBDeqRNF6yO8.kXrUlqeVQaMl.BR86VloqaPturCmTl.KICKFlr8lDxCOLO2lkYeG2U4OyZ9A9f9tXYNjR35KdhoDDclFMyPlowKwEgrTdqunO+8CzXCSLei4kBnxU2IqbkOd8GGXtPedbBizMIfoleridfbt.rJatd8594hXtZR4A1eFyhrezYQOUH9By9bki+xw3ZKAiXsy+GXLeB9yLO0yC6bNCfaX182V0w0eB2icpUbwnyYpHttF3hjvAXYnCfdWf0xw55h0z2Ayns0z5Lv.P3lR7.9kKrgl1HWXiBgX0kSj78NY2b0uQXqTNHlDougZa7wbHMcIWVCwmr7dGm42pELr4pZXqU0v1qpgcVUCe0pZ3tqpg68oMT+hxCSTxvrqMDx48OMs4pgwoBFVAlVsR9GztgJYG

Content.makeFrontInterface(200, 200);

const laf = Content.createLocalLookAndFeel();

laf.registerFunction("drawPopupMenuBackground", function(g, obj)
{
    g.setColour("0x00000000"); // any transparent colour
    g.fillRect([0,0,200,200]);
});

laf.registerFunction("drawPopupMenuItem", function(g, obj)
{
    var a = obj.area;

    var padArea = [a[0] + 2, a[1] + 2, a[2] - 4, a[3] - 4];
    g.setColour(obj.isHighlighted ? Colours.green : Colours.blue);
    g.fillRoundedRectangle(padArea, 8);

    var textArea = [padArea[0] + 8, padArea[1], padArea[2] - 16, padArea[3]];
    g.setColour(Colours.white);
    g.setFont("Default", 14.0);
    g.drawAlignedText(obj.text, textArea, "left");
});

const ComboBox1 = Content.getComponent("ComboBox1");
ComboBox1.setLocalLookAndFeel(laf);

The drawPopupMenuBackground object should probably include an area, and the popup menu items still have a subtle drop shadow. But they're both fixes for another day.

PR here, if it's useful: https://github.com/christophhart/HISE/pull/805

[David Healey]

@dannytaurus Excellent, thanks

[Chazrox]

@dannytaurus sick man.

[David Healey]

@dannytaurus Seems to work perfectly

[dannytaurus]

@David-Healey Excellent! Your example just reminded me this also solves my issue with getting rounded corners on the MID Learn popup too. Bonus

[Chazrox]

@dannytaurus You just upped everyones combo box game. haha.

[ILIAM]

@dannytaurus @David-Healey Doesnt work on older Version!
I see a White Bg Here!
Did you Guys Changed the Source code?

[David Healey]

@ILIAM said in Look & Feel - ComboBox Background.:

Did you Guys Changed the Source code?

Yes you'll need to wait for Christoph to merge it, use one of our forks, or make your own fork and pull in the PRs.

[ILIAM]

@David-Healey said in Look & Feel - ComboBox Background.:

wait for Christoph to merge it, use one of our forks, or make your own fork and pull in the PRs.

Great!
Can you point me to the Code you guys changed?
I want to stay with my Current Version of Hise for now

[David Healey]

@ILIAM Check these two PRs from @dannytaurus

https://github.com/christophhart/HISE/pull/805
https://github.com/christophhart/HISE/pull/806

[David Healey]

@dannytaurus Do you think the same trick would work with alert windows?

[dannytaurus]

@David-Healey Yeah, can't see why not!

I've never used an AlertWindow. Do you have a small snippet?

[David Healey]

@dannytaurus Here ya go

HiseSnippet 1027.3ocsVstaZbDEdVr2zBsMpQpO.S3WqqPD1XarsrppuRJpFGTvMs+KZXlyBS8vLnYm01nJK0Gs9+9xz2f1yr6ZC9hbRPpH.y457MemKq6aMbHM0XIA0Na1TfD70gClociObLSpIcOhD77vdrTGXoEpNX1TVZJHHAAq7FuhfpqRxe8O+3ALESyg4pHj2ajb3D4Doat1968yRkpCS.mImrf2arWWtQenQYxP7rRXKxTF+b1H3Tl2sJgjehkNlD78gayGJZuifs0v1sGtULWrSRq3cX.Lb8M2dcXSdadbRaVKRvyNVHcF6.GyAoXROvHlMXr4RcwA7dYpbnB7BwjA3IWnlb3XoRz+FxIkPBVs+bpZkBp56B6IExa0Omx91bCz4QrHoET4ofT7mAjBV.RqV.oWDNfakScys3wyWE1UiUvDFVaVDJE9Rp72UBOzfdncMmvNG5XQgaiHpcqVMn3WqsasZX8I0QUrD5OPOVORpglbKfWj2nLCYphDdhwb99ZQG.TQ9fd0qdIceEXczKkZg4xZX7MsvHouspSll6jFcTcgkcYta+ZtW0aPStw1nFTyveesZ+QspWvrTFd5nbSFdz6ViRo3mpiZlBthlmnVWkjrd75udiMVa2BaIXG26LYZAHdGvcL8HEDwZPecqbOPeteNJ9SZyKGKcvMoo.ixQZPbFbkKxiBmzofFTFdkDYbPDE2ZsFz5bjNQM0wPu1yB0jZExW2donF8AYNmQG64dqQEwMSlZzXXMnWvTYP98UlPidYoX0pVvkY0X1pVx9oXiSOrRiSIGXtJp9YdvfTW8yFKSo3aFE6xbnF+E8ZLxapzi72zxCLpdITpuVACjCnCYJ0PbBL59HEyzB2hSMN3s5nbzV65Zz6aJI4QsUlKrf+nl8qFrOUfQ5rICA6hbk2QbT3tyWO6Sa9hWPKK3nQ2UKcucJTJ2wnD94F+ue3zHojWwe8KcOh4X9AzRcneSw9ZoGNAGAWfqDKFWqFdDjdtyLM22xhAI3Kb4Ved4vbA4SjBe.kUBxU2t27OOeuY2J7Wp8jo8LSv7vrn5fJflgWW+BoS.lU6m6SYW.c08s.Vq8xjGtHAWgYDYJl6t607a7KMfEi6rLwuvPmJcyV7IBeFK6Z8jK69Tg3KB6Kc7wONFq7HXDKS+efwxGQ7MgGmjf6alCvUC67aK6yC9HGOteyI0i5wbVI1dDdZ1jA3JLNfmtVCJL4gAU7spExs7xdFX.nE4B+K9pzXrWNnzX7MFISXbq4C7hQP+Cg9xbMHlz4OjtJ9eKfxzXR9X4h77DrE7Cb9cS0CB70KafqurAtwxF3lKafsW1.2ZYCb6Odf9MD6m4LSJFaHjd8ONeOVPvw4qPx6VI+Gsp645A

[dannytaurus]

@David-Healey Cheers. I'll have a look in the morning. Just fixing some minor niggles with the MIDI Learn Panel at the moment.