wxWidgets transparent frame with opaque controls - visual-c++

I've a frame with wxStaticBitmap when i make the frame semi-transparent using wxTopLevelWindow::SetTransparent(), staticbitmap also gets transparent.
Is there a way we can make only the frame transparent and not the controls?.
(similar to windows 7 taskbar and startmenu).
Thanks in advance,
Have a nice day!
Rajan.M

Have you tried using a panel fitted to the frame's client area and then making the panel, rather than the frame, the parent of the controls? This works better in many different ways, so I suspect it might solve your problem here. You can set the frame transparent, but force the panel to be opaque which should cascade to all the child windows of the panel.
( I haven't tried it myself - IMHO transparent frames are ugly )

Related

Can you hide a node when not directly above a parent in Godot?

So I have an instanced scene that is supposed to be the child of a colour rect in my tree. I want to randomly generate the nodes, but I also want parts of the view to be cut off if the texture no longer is above the main section. I know you can render nodes below their parents, but I don't know if stopping part of them from rendering is physically possible.
In this image I want the bottom circle to remain the same, but the top circle to not show anything above the dark purple box
This is the node tree in the editor
Is there any way to do this directly, or am I gonna have to use a viewport of some variety?
I believe what you want is to set rect_clip_content to true on the ColorRect (or whatever Control). Making invisible any part of its children outside of it.
From Godot's documentation:
bool rect_clip_content
Enables whether rendering of CanvasItem based children should be clipped to this control's rectangle. If true, parts of a child which would be visibly outside of this control's rectangle will not be rendered.
If what you want is the opposite, perhaps you can use z_index to have something render on top, occluding the parts you don't want visible.
There is also a trick you can use with lights (including 2D lights):
Make a light that matches the area you want things to be visible.
Set a custom material that will be transparent by default, but visible on the light pass. The simpler way to do this is to set the light_mode of the material to "Light Only". You could also do it with a custom shader instead.
Making something disappear with light, in 2D, is impossible. In 3D, you can use flags_use_shadow_to_opacity. That is how you make a shadow catcher.
But, there is one more trick: you can use a mask. This should give you full control of when to show or hide things. So, if none of the above solutions works for you, use a mask. I have an explanation in a different answer. See also: How to crop sprite in a non-rectangular form?.
Mighty Mochi Games recently (2022-03-30) made a compilation of the different approaches in video form: Mask Methods Collection - Godot 3.x - 2D
.

android wipe animation when button bar slide up

I'm trying to create slidingup animation in android application to change between two view of layout.
I've tried from this tutorial
but the second screen didn't come like what I want.
I want the second layout to come like a wipe animation, like the following picture at the bottom
Refer this:
https://android.googlesource.com/platform/frameworks/base/+/ab51002847ea3dcdc0ba14eb330ab9ec292a9789/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
In the above code, focus on the animateCollapsePanels method
I was able to implement a similar transition by using a clipping Path. Because I didn't want my transition to rule out the use of Layouts in the clipped view, I implemented the clipping at the Layout level following this answer: Custom Layout that rounds the corners of its content
The clipping is no anti-aliased and you would need to do use instead PorterDuff and XferMode based solutions otherwise, but for a linear wipe animation like you're describing, clipping in the layout will achieve what you want. Basically you're doing a linear reveal whereas the accepted answer I linked does a circular clip.

gtk3 transparent menu's

Is it possible in gtk3 to create a menu that is transparent? The underling window would use an image as it's background.
I can use a color for the window background but not a image.
I attempted to do what you said using an example from the gdk2 reference by adding a background image first and then porting it to gtk3. I'm no expert at gtk at all, but I did make it somehow compile:
http://pastebin.com/0XwUW5k3 (note that there has to be a "background.png" in the same folder)
The transparent dark rectangle holding the widgets is most likely the box; I tried settings its background color to full transparency as well, but it didn't work, and you'd probably have to do the composing/drawing of it yourself if you wanted it to be completely transparent, but that's not something I'd suggest because it seems too complex..
Also, you might want to create a background image with an already fitting resolution for the window, then you could skip the scaling part.
The scale function originally comes from this mailling-list thread

Transparency problem with gradient - Label in a Panel on a UserControl, ultimately displayed on parent Form

I know this has been asked many times, but not quite the way I'm trying to solve it.
I have Labels in a Panel on a UserControl, and the UserControl goes onto a form.
The Label.BackColor = Transparent.
The panel is from DevExpress, and I've set a gradient background.
Problem: The Labels aren't transparent; they each show as a white solid rectangle around the text. (I presume the white comes from the Panel, as the first of the two gradient colors is White.)
Everything I google about this problem says I need to roll my own Label control and fire off peculiar GDI+ commands, and Invalidate the control, and hook the Paint event and sing a stirring sea shanty and hold one foot above my head and...
Really? Doesn't the Label allow ".BackColor=Transparent" ? Why doesn't that work?
And what's the best way through this?
Somehow it turns out I never tried making the Label backgrounds transparent.
I am not a proud.

how can one resize portions of a css-sprite?

I'd like to improve upon jQuery's dialog code by using CSS-sprites, and thus also add animations of the dialog borders.
To do this, i'd like all the artwork to be in 1 png file, a css sprite.
My problem is that in order to support a dialog that maximizes to 2 or 3 monitors, i think i'd have to put 5000px wide / high border graphics in the css sprite file. Because i can't find a way to resize a selected portion of a css sprite image.
Basically i want to resize from the sprite image a region (t,l,w,h) to a DIV or IMG on my page with a different width and height.
I'd like to know, is this even possible? It seems background-position does not support this at all.
I've tried the first solution in How can I scale an image in a CSS sprite, but could not get it to work using that.
I've tried using the new background-size property in conjunction with background-position, but that also does not produce the results i want.
Spent another few hours twiddling with css, but could not get sprites to work for dialogs.
But my animated dialogs don't need many frames (not unless you want to put actual video as a dialog backdrop online), so for the dialog theme i'm designing now i have 8 312x312 png's as frames, 8 requests, 386kb total. Just enough to create a glowing animation for when the dialog is in a "highlighted" state. It's do-able.
I'm using the technique from How can I scale an image in a CSS sprite
See http://mediabeez.ws in about a month for the opensource release of animated dialogs.
I will be developing and testing this standalone component when it's used by my own homegrown CMS, so it will have the ability do be themed, dragged and dropped, things like that.

Resources