I`m trying to migrate from Delphi XE with TeeChart 8 to Delphi XE3 with TeeChart 2013. All is OK except one thing, there are no Clear type in axis font. Adding something like this:
Chart.LeftAxis.LabelsFont.Quality := fqClearType;
does nothing.
PS: charts are created at runtime.
This has been modified for the next version of TeeChart VCL but in the actual v2013.08, the Font Quality is forced to fqNormal when the Font Size is <10, because the antialias doesn't look nice with small fonts. So you can try incrementing the Font Size to see the effect.
Also, note TeeChart v2013 is the first to use GDI+ by default. If you want to set GDI back, you can use:
uses TeCanvas;
//...
Chart1.Canvas:=TTeeCanvas3D.Create;
Related
I noticed that Sublime Text has much better rendering for some fonts and sizes than Scintilla based editors. How is that achieved? Is there some famous text renderer underneath it or they developed their own?
Sublime Text uses highly tuned settings over platform-specific libraries to render text. It has actually used several different libraries throughout the years. I couldn't find any specifics for OSX, but there are some details for Windows/Linux in the forums and release notes.
In ST3 build 3034, it is noted that the graphics rendering engine was "ported to Skia from Cairo". However, it is not clear if there was custom text rendering being done, or if it is just for UI elements.
Sublime Text 1
I can't find a good reference for version 1, but through bits and pieces of forum conversations, it looks like it may have been a custom rendering engine written on top of OpenGL. Other forum posts point out that all future rendering would be pure software as there was a lot of cross-platform issues caused by GPU rendering.
The best quote I could find was this:
Sublime Text 2 uses software rendering only. Ultimately, it caused too many compatibility issues in 1.x, and with going cross platform for version 2, that would only have increased. Nonetheless, I'll talk about Sublime Text 1.x for a bit.
The basic text rendering itself was fairly standard: textured quads are drawn to the screen, one per character. However, there are a few details worth noting:
* Characters are buffered, and sorted by color, to reduce state changes.
* Most OpenGL applications will have a single channel texture for the characters, and blend the desired color on top. Sublime Text uses RGB textures, with the text pre-composed with the correct foreground and background color. This takes more memory, but allows ClearType to be used, which is important for a text editor.
Sublime Text 2 (release notes)
Windows uses GDI, with an option added in build 2081 to use DirectWrite instead.
In build 2170, Pango was added as the rendering on Linux to improve support for cjk text.
Sublime Text 3 (release notes)
DirectWrite replaced GDI as the default renderer on Windows in build 3127, unless you are using the fonts Consolas or Courier New. GDI was kept as a rendering option in the settings.
I have a TChart in my Borland Delphi 7 project. What I want to do is to use an image instead of point while plotting on chart. How can I do this?
I'm not sure to understand what do you exactly want to achieve.
See the TImagePoint series. Find an example at "All features\Welcome !\Chart styles\Other\Image Point"
See the BackWall.Brush.Image property. Find an example at "All features\Welcome !\Miscellaneous\Walls\Back Wall\Brush image". Note you may have to set the back wall gradient invisible to make the image appear.
These examples are included in the TeeChart compiled demo
There seems no way to change font size or style in code, right?? It seems the only way is to duplicate the font files and load them all when program starts??
Thanks
SpriteFonts convert a font, with style, size, and other parameters, to a pixel-based format for use as a texture within XNA. Those pixels are static, so yes, there is no way to change them, short of looping through per pixel.
However there is scaling (though it won't look so great scaling larger) to help with size adjustments needed, plus you could, like you said, create multiple SpriteFont files from the same base font for different styles, and dynamically choose one of those sprite font "textures" within your code.
Beyond that, for true fully dynamic runtime usage, you'd need to essentially create these sprite font textures on the fly, in memory. This means you'd have to do what the SpriteFont Content Pipeline project does but at runtime instead. This is possible in WinForms, but as far as I know not really an option for WP7 as you apparently are using.
when I open the application icon of a MFC-project with Visual Studio 2008 there are 13 images (different sizes, different color palette). How would you change the icon of your MFC-application without changing each image?
Thanks!
I like to use the Icons file type extension with Paint.NET. When you open a .ICO file it will prompt you for which image to open - select only the largest / highest-bit image. Make your changes, and then save. You will be prompted for which sizes and bitness to save - select the same list that was present in the original icon.
Using this method, you will get automatically scaled and dithered icons at the smaller sizes. A designer would actually tweak the icons at each size to get the best look, but for most applications this technique produces something that is usable.
An icon resource typically contains many different versions of an icon. For an application icon you would expect 16x16, 32x32, 48x48 and 256x256. You'd also expect to see the 3 smaller ones at 32 bit colour, 8 bit colour 4 bit colour. Or some variant on that. Microsoft publishes guidelines.
Why so many different versions of the same icon?
Well, the icon will be drawn in different settings. On a window caption bar, the 16px version will typically be shown. On the Windows 7 taskbar the 48px version will be shown. When usint ALT+TAB in XP the 32px will be shown. In Vista/7 explorer with ultra large icon view, the 256px will be shown.
To obtain the best visual appearance you must have different versions of the image for different sizes because small raster images aren't easy to scale. What's more, you may present a slightly different version of the icon at different resolutions. For example you may use 3D effects only on larger resolution, partial transparency versions.
When using remote desktop, lower colour depths may be used if the connection is bandwidth challenged.
The MS guidelines go into these issues in detail.
The normal practice of for the graphic designer to design the icon and once you are happy with it the designer will produce rasterised versions for all the required sizes and colour depths, typically in a single .ico file.
We have standard flex 3 project, and We have left everything as default, no change in style at all, and we deployed our project and noticed that on Mac the character spacing is very bad and overall look and feel is not as clear as that of windows.
Here is the difference, left one is Windows and right one is Mac.. the default flex font chosen by Adobe is "Verdana", the left one looks pretty, but right one looks as its width and character spacing, everything is incorrect. I assume verdana font may not be available on Mac, but in that case I supposed adobe should have given default standard font of good quality.
alt text http://akashkava.com/images/MacFlashFontProblem.png
What can we do to resolve this? Will embedding Verdana font in flex project style will help?
Mac OS X and Windows have different text rendering engines. I've heard it said that Mac OS X tries to preserve the character shape while Windows tries to align with screen pixels at small sizes.
That's going to result in differences between how fonts are rendered, and there's really no way to work around it.
Personally, I think the example on the right looks much nicer; the one on the left looks square, like it's being rendered at too small a size, while the one on the right looks more like the font is supposed to look.
It's not a solution, but Verdana is available on every OS X box. See this Apple doc for 10.5; I couldn't find one on 10.6 but there is one.