a borderless window alternative

[punker76]

this pr is about changing the current borderless behavior

why?

• we got many issues with our current solution, because we use AllowsTransparency="True" for the MetroWindow
• AllowsTransparency="True" breaks the ClearTypeHint mechanism
• with AllowsTransparency="True" no WinForms/WebBrowser works
• AllowsTransparency="True" is a performance issue, more info here and here Transparent Windows in WPF

so what is the benefit and what is changed

• no more AllowsTransparency="True"
• no Airspace Decorator Integration
• use shell WindowChrome for custom window
• WinForms/WebBrowser should work (browser can be tested in demo app)
• ClearTypeHint works
• better support for SizeToContent
• the Window animation is moved to the content and not for the hole window
• introduce NonActiveBorderBrush and NonActiveGlowBrush

i hope this solution works even better the old one

and most this could fix

• Closes MetroWindow with extended monitors #1099 MetroWindow with extended monitors
• Closes Window maximizes to wrong size #1136 Window maximizes to wrong size
• Closes Exception "Arithmetic operation resulted in an overflow." on CleanWindowStyle #897 Exception "Arithmetic operation resulted in an overflow." on CleanWindowStyle
• Closes Support TextOptions.TextFormattingMode="Display" #889 Support TextOptions.TextFormattingMode="Display"
• Closes Flyout window expansion problem #1119 Flyout window expansion problem
• Closes [WIP] Airspace Decorator Integration #1077 Airspace Decorator Integration

works but must be tested by other users with different monitor configurations

• maximising with IgnoreTaskbarOnMaximize or UseNoneWindowStyle, the taskbar should hide

/cc @Amrykid @flagbug

[QuantumDeveloper]

@punker76 must have 👍

[flagbug]

The window is somehow cut off on the right side on my left monitor when maximized

[punker76]

@flagbug thx

[punker76]

@flagbug you can retry testing maximize

[flagbug]

@punker76 Works now 👍

[QuantumDeveloper]

@punker76 always wanted to ask. Does this window will work finw with hi dpi displays? like 2K and 4K?

[punker76]

@QuantumDeveloper i hope so, can test it out on my tv...

[QuantumDeveloper]

@punker76 yeah, test it please. 4k displays will become popular soon. So, We need support such resolutions.

[AzureKitsune]

Works for me. 👍

[punker76]

@flagbug can you check my latest changes in #1156 with your multimonitor configuration? thx!

[flagbug]

@punker76 IgnoreTaskbarOnMaximize doesn't work, everything else seems to be fine

[flagbug]

I have one question though: Is there a reason why we mark BorderlessWindowBehavior as obsolete and not just overwrite the current code?

[punker76]

@100GPing100 @Tide @QuantumDeveloper @flagbug @Amrykid @thoemmi @shiftkey
next version to test with maximized window and hidden taskbar! now using modified version of wpf shell thx :-D

[zeluisping]

I never expected to see a recent shiftkey mention. Also 👍

[flagbug]

@punker76 IgnoreTaskBarOnMaximize still doesn't work 😕

[punker76]

@flagbug nice :-( which system? os? oh man, wtf... on my win 7 64 bit two monitors, all works fine

[flagbug]

@punker76 Windows 8.1 64bit

Are you sure we are talking about the same behavior? If IgnoreTaskBarOnMaximize is set to true, the window, when maximized, should overlap the taskbar

[punker76]

@flagbug yes, it should overlap/hide the taskbar. and on my win 7 it works...

[zeluisping]

Oh wait, it works for @punker76. I have Windows 8 64bit, I can test it.