I am having a string which is hardcoded now (which would be fetched from database in future). I want some parts of the strings to be bold while its stored rather than use rich text (as it would be random with different text). Is there any way to store it as bold using some escape sequences ?
Also is hyper link possible in string in flutter.
Thanks in advance.
I don't think that's possible. But if you have control over the input's format, what you can do is style it using markdown and use the flutter_markdown package to render it.
For hyperlinks, see this answer to do it with RichText. Markdown supports hyperlinks though.
Related
I'm generating some simple svg for data visualization and as part of that I need
to render several lines of text. I'm using the simple text/textspan. However when
determining when to break the line, I need to know the width of the string. Note that I am not using javascript, these are static svg diagrams. My manual mockups work fine on all three platforms(Mac/Windows 10/Linux) in several different browser. I've been searching, but all attempts to find anything about string widths involves dynamic SVG and javascript. Is there any data anywhere on the character widths of the default fonts? I'm using rather simple svg. I'm using the default transform and coordinate space as well. Or do I have to write a javascript test page to return the widths?
Thanks.
The standard font is determined by settings of the renderer. Browsers will use the same font they use for HTML content, set by the user and depending on fonts installed on their system. That means text size will differ for each end user.
There is no way around measuring the text after rendering.
Has anyone figured out a way to dynamically mutate text on the screen without triggering a render?
A large part of my screen utilizes setNativeProps for moving parts, meaning that the animations become lagged despite using shouldComponentUpdate. I would like to use the Text tag instead of the TextInput tag workaround suggested in this post for stylistic reasons.
Best case scenario is a workaround that involves setNaiveProps as it would follow the pattern of the rest of the screen; however, I currently plan to render all the numbers 0-9 on the screen an move them into place at the moment, so any help would be greatly appreciated!
As it turns out, you can actually format TextInputs the same exact way as Text elements (from what I have tested). For placing text horizontally, you have to set the width (something I had trouble with before). For those still interested in the original question however, you can nest TextInputs inside of a Text Element (one per text element because there is no justification and it automatically places them in a row). Styling applied to the Text Element will apply to the TextInput.
Unicode has a lot of fancy code points that can be used to do things like change the direction text is formatted, include inband protocol information and other things.
I want to find out if there is a way of specifying, as part of a unicode string, a 'fallback' glyph or set of glyphs where an uncommon unicode code point is unrepresented in the font being used to display the text?
Example:
"æ<character to signify use following as alternate if previous character unavailable>ae<character to specify end of alternate>"
I've had a look through some of these code points at unicode.org and tried some different searches on SO without success. Some of the topics I've looked at:
Is there a way to programatically determine if a font file has a specific Unicode Glyph? (Windows/C#)
How to map code points to unicode characters depending on the font used? (Java)
I would like to know, сan GhostScript render pdf on image (such as jpeg) without text? If not, advise the free library for .net, that it will make.
Sorry for my English. Thx!
What do you mean by 'render without text' ? Do you mean that you want all the content of a PDF page rendered to a format which doesn;t contain text (such as JPEG), or do you mean you want all the content of a PDF page except the text rendered, to a file format such as JPEG.
Its possible to elide the text, but its not a command line switch or anything like that, because its pretty hard to see why you want to do this.
If you really do want to do it, then your best bet is to modify the text handling procedures in the PDF interpreter, I would suggest that you don't alter the processing but set the text rendering mode to mode 3 (neither stroke nor fill) to prevent any problems with the current point not being correct.
How can I widen the space that the strings take up. The text for the entry text is overlapping with the text for the string that corresponds to it.
You will need to build a custom Element that can render precisely the way that you want. The built-in elements do not offer a lot of configuration options.