Most of my GUI programming was done in Java, where you could use a .pack() method that would set the preferred size the window should have. I'm learning PyGTK now and wondering if such a thing exists in it.
You don't need a pack method. if you don't set a size, the window will adjust to its minimum size.
You can use window.set_size_request(-1,-1) to unset any previous size.
Unfortunately... not that I know of. I use the following trick that uses a variety of GTK and GDK methods to work out the screen size of the current monitor at app startup and resizes the root window to have a certain proportion of fill.
Note that root is a GtkWindow. You could, of course, have two values for SCREEN_FILL for horizontal and vertical fill.
SCREEN_FILL = 0.7
class MainApp(object):
def set_initial_size(self):
screen = self.root.get_screen()
monitor = screen.get_monitor_at_window(self.root.get_window())
geom = screen.get_monitor_geometry(monitor)
self.root.set_resize_mode(gtk.RESIZE_QUEUE)
self.root.resize(
int(geom.width * SCREEN_FILL),
int(geom.height * SCREEN_FILL))
Related
In p5.play I want to set a sprite's opacity(like Fade). How can I do that?
sprite.opacity = 0.5 //something like that
There are two ways you can do this, depending on what you're trying to make transparent.
Changing the color
This method can only be used if you don't plan on adding images to your sprites. We can use this basic function:
sprite.shapeColor.setAlpha(50)
As I said, this method can only be used with colors.
Changing the images
It is by no means efficient, but it technically works
tint(255, 0-255);
drawSprites(sprite);
tint(255)
My CAMetalLayer background color is black, even if i'm assigning new color as the backgroundColor property.
Am i missing something? Thanks!
Link to the original project :
https://github.com/audiokit/MetalParticles
This project takes a rather unconventional approach to clearing the drawable's texture each frame: it replaces the textures contents with an array of zeros that is the same size as the texture (width * height * 4). Subsequently, it encodes some compute work that actually draws the particles. This is almost certainly not the most efficient way to achieve this effect, but if you want to make the smallest change that could possibly work (as opposed to experimenting with making the code as efficient as possible), Just fill the blankBitmapRawData array with your desired clear color (near line 82 of ParticleLab.swift).
I have gone through your code and can not see a place where you are setting background Color.
The metal layer is added as a sublayer to it, so you have to set it explicitly.
Add this line at the end of your init method in ParticialLab class and see if it works.
self.backgroundColor = UIColor.redColor().CGColor
I found that self.isOpaque = false was needed on the layer.
I'm working with a jsx script in Photoshop that resizes images to a specific size. The resolution is set at 200 dpi. After running the script, I can check this under Image > Image Size.
Problem is, depending on the image, it initially tends to show the resolution in dots/cm instead of dots/inch. The number itself is correct either way, but I'd like to see it mentioned there as the latter. Is there a way to realize this in JSX?
Thanks!
J
The easy way is to open your Info Panel by going to Window > Info, and then click on the x/y coordinates dropdown in the Info Panel and select inches. The dropdown is the + toward the lower-left of the panel, with the little down arrow at the bottom right of the + symbol (The plus is actually an x axis and y axis representing a coordinate plane). After that, when you check under Image > Image Size, it should show you all information in inches instead of centimeters. This should also show you inches anywhere else you look in Photoshop's interface, too, such as the rulers.
An exception would be that when using selection tools, such as the marquee tool with a setting like "fixed size" selected, you can override the units setting by typing in another unit in the Width and Height sections at the top of the window. You can even mix and match units, making a precise selection that is, for example, exactly 250 pixels (px in the Width setting) by 30 points (pt in the Height setting). And when you check your image size, it should still show you results in inches.
And finally, to answer your question as it was asked, the following code will change your rulerUnits preference without opening the Info Panel.
#target Photoshop
preferences.rulerUnits = Units.INCHES;
Note that if you want to write other scripts, you can change the rulerUnits to whatever units the script calls for, and then at the end of the script put your units back the way you had them.
#target Photoshop
// Save the original rulerUnits setting to a variable
var originalRulerUnits = preferences.rulerUnits;
// Change the rulerUnits to Inches
preferences.rulerUnits = Units.INCHES;
//
// Do magical scripty stuff here...
//
// Restore the original setting
preferences.rulerUnits = originalRulerUnits;
// List of rulerUnits settings available
// Units.CM
// Units.INCHES
// Units.MM
// Units.PERCENT
// Units.PICAS
// Units.PIXELS
// Units.POINTS
I'm using Builder v1.80.06
I can vary the position of a polygon every repeat easily enough
e.g. I have a Positions list
positions=[[1,1],[1.1,0.9],...]
and in the 'Position field' have :
$positions[0]
and then change it's value in a code block on each repeat.
BUT I want to vary the size in a similar manner with a $sizes list but get an error.
Looking at the generated code, the problem is at the object creation stage. the code generated is:
for a hard coded polygon (ie ok)
polygon_1 = visual.Rect(win=win, name='polygon_1',
width=[1.5, .2][0], height=[1.5, .2][1],
ori=0, pos=[0, -0.6],
lineWidth=1, lineColor=[1,1,1], lineColorSpace=u'rgb',
fillColor=[0,1,0], fillColorSpace=u'rgb',
opacity=1,interpolate=True)
for one populated by a variable (not working):
polygon_2= visual.Rect(win=win, name='polygon_2',
width=1.0[0], height=1.0[1],
ori=0, pos=[0,0],
lineWidth=1, lineColor=[1,1,1], lineColorSpace=u'rgb',
fillColor=[1,0,0], fillColorSpace=u'rgb',
opacity=1,interpolate=True)
It complains (rightly) that 1.0[0] makes no sense on the width and height parameters
Even though I have my sizes list instantiated in a code block right at the beginning of the experiment instead of reading $sizes[0] a default float value of 1.0 is used.
Any other suggestions for how to vary the polygon size dynamically at runtime using builder?
I could just take the generated code and drop it into coder I suppose and fix the problem but I want to hand this over to a researcher so would like for them to be able to maintain it.
thanks,
If you set size to be a tuple/list with a pair values [1.2,1.5] or [1,1] does that not fix it?
When you change attributes at runtime, just change the attribute of an existing stimulus instead of instantiating a full new stimulus. The latter is quite heavy on ressources, causing unreliable timing. So do
stim = visual.Rect(win) # instantiation, ressource heavy
stim.attribute = newValue # change attribute. lighter.
I can think of two ways you could do it in a pretty neat way. The first is to set width and height explicitly instead of the size attribute, but using a size-like value. So (removing all parameters not of interest):
polygon_2 = visual.Rect(win)
# Unpack the x,y-sizes to the stimulus .width and .height attributes
newSize = (1.5, 0.2)
polygon_2.width, polygon_2.height = newSize
The second, if the size attribute is really important to use, is to use the Polygin with edges=4 to make it a rectangle:
polygon_2 = visual.Polygon(win=win, edges=4, size=(1.5, 0.2))
# Setting size
polygon_2.size = (0.8, 0.4)
Do try Jon's suggestion first. But the idea with visual.Rect and visual.Circleis to use substitute Polygon's size and vertices for something more relevant. So size can do unexpected things if width/height etc. are not 1.
I have a Zedgraph textobj which I want to place always in the same x, y position (ASP.NET image). I noticed that the text doesn't always show in the same starting x position. It shifts depending on the text's length. I tried to have the text to have the same length by padding it with spaces. It helped a little but the result is not always consistent. I am using PaneFraction for coordType.
What's the proper method to have a piece of text to always show in the same x position. I am using textobj as a title because the native title property always shows up centered and I need my title be left aligned to the graph.
No, it does not depend on text lenght, however...
It depends on various other things:
Horizontal and vertical align of the text box (see: Location )
Current size of the pane. The font size is scaled dynamically to fit the changing size of the chart.
Counting proper positions to have TextObj (or any other object) always at the same place is quite hard. So you need avoid as much as you can any numbers/fractions in your location coordinates. ZedGraph sometimes calculates the true position in quite odd way then.
You haven't provided any code, so it's hard to tell if and where you made the mistake (if any). But, if I were you, I would do something like that:
TextObj fakeTitle = new TextObj("some title\n ", 0.0, 0.0); // I'm using \n to have additional line - this would give me some space, margin.
fakeTitle.Location.CoordinateFrame = CoordType.ChartFraction;
fakeTitle.Location.AlignH = AlignH.Left; // Left align - that's what you need
fakeTitle.Location.AlignV = AlignV.Bottom; // Bottom - it means, that left bottom corner of your object would be located at the left top corner of the chart (point (0,0))
fakeTitle.FontSpec.Border.IsVisible = false; // Disable the border
fakeTitle.FontSpec.Fill.IsVisible = false; // ... and the fill. You don't need it.
zg1.MasterPane[0].GraphObjList.Add(fakeTitle);
I'm using ChartFraction coordinates instead of PaneFraction (as drharris suggests) coordinates to have the title nicely aligned with the left border of the chart. Otherwise it would be flushed totally to the left side (no margin etc...) - it looks better this way.
But make sure you didn't set too big font size - it could be clipped at the top
Are you using this constructor?
TextObj(text, x, y, coordType, alignH, alignV)
If not, then be sure you're setting alignH to AlignH.Left and alignV to AlignV.Top. Then X and Y should be 0, 0. PaneFraction for the coordType should be the correct option here, unless I'm missing your intent.
Alternatively, you can simply download Zedgraph code, edit it to Left-align the title (or even better, provide an option for this, which should have been done originally), and then use it in production. Beauty of open source.