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High DPI for desktop applications

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JavaOne 2008 slides for the HighDPI Birds of Feather

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High DPI for desktop applications

  1. 1. HIGH-RESOLUTION MONITORS Make Your User Interfaces Scale with the Future
  2. 2. Agenda  Introduction  Some broken apps  Scaling modes  Testing your apps  Swing tips
  3. 3. What is DPI width height Artwork by Studiomx.eu
  4. 4. What is DPI 13.3 inch 8.3 inch Artwork by Studiomx.eu
  5. 5. What is DPI 1280 pixels 800 pixels Artwork by Studiomx.eu
  6. 6. What is DPI 1280 pixels / 13.3 inch 800 pixels / 8.3 inch 1280 pixels / 13.3 inch = 96 pixels per inch 800 pixels / 8.3 inch = 96 pixels per inch Artwork by Studiomx.eu
  7. 7. Pixels vs. points  Example: Printing  Translating a logical “point” to multiple ink “pixels”  Desktop publishing point – 1/72 of an inch  As displays become denser, this translation becomes necessary as well  12-point font should always be 1/6 of an inch under different DPI conditions
  8. 8. Different pixel size, same point size 12 points 300 DPI 96 DPI
  9. 9. Pixels, points, and your display  Points  logical unit of layout  (text, controls, primitive drawing)  Pixels  literal physical unit of display  Scale factor  how points are converted to pixels for your specific hardware
  10. 10. What is High DPI? QSXGA – Quad Super eXtended Graphics Array 13.3 inch by 16.6 inch 2048 pixels by 2560 pixels 154 DPI Priced in $13.000-15.000 range Planar Eizo Barco WIDE Dome C5i Radiforce G51 Coronis 5MP IF2105MP
  11. 11. What is High DPI? WQUXGA – Wide Quad Ultra eXtended Graphics Array 18.8 inch by 11.8 inch 3840 pixels by 2400 pixels 204 DPI Priced at around $9.000 IDTech MD22292 series sold as: •IBM T220, T221 •Iiyama AQU5611DTBK •ViewSonic VP2290b •ADTX MD22292B Toshiba will produce a WQUXGA monitor in Q2 2008
  12. 12. High DPI – beyond the desktop Sony W810i Apple iPhone 148 DPI 163 DPI Sony W810i Apple iPod Nano 200 DPI 204 DPI Amazon Kindle Nokia N770 167 DPI 225 DPI
  13. 13. Point Of Sale / Presentation www.microsoft.com/dynamics/pos www.visualbusiness.com.au www.komtelpe.biz www.posmagic.com.au
  14. 14. What does this have to do with me?  Even jump from 96 DPI to 120 DPI can break visuals  Convergence with handhelds (200+ DPI)  Point of sale systems (touch screens)  Presentations and demos  Hardware always gets cheaper…
  15. 15. Broken applications Let’s see a few applications scaled to 150-200%
  16. 16. Windows XP - run
  17. 17. Windows XP - Paint
  18. 18. Windows Vista – Photoshop CS3
  19. 19. Windows Vista - Minesweeper
  20. 20. Ubuntu 8.04 – Eclipse 3.4m5
  21. 21. Ubuntu 8.04 - archiver
  22. 22. Ubuntu 8.04 – Firefox 3 beta 5
  23. 23. Mac OS X Leopard - Acorn
  24. 24. Mac OS X Leopard - Photoshop
  25. 25. UI scaling modes Magnification Application scaling Framework scaling
  26. 26. Magnification  simplest option  fuzzy  best choice for legacy apps
  27. 27. Magnification http://developer.apple.com/documentation/UserExperience/Conceptual/HiDPIOverview/ HiDPIConcepts/chapter_2_section_1.html
  28. 28. Magnification – Mac OS X
  29. 29. Magnification – Windows Vista
  30. 30. Application Scaling Applications that don’t use modern native UI libs (WPF / Cocoa) Applications that use UI toolkits that don’t provide magnification / toolkit scaling (Swing on non-Mac platforms)
  31. 31. What should be scaled?  Icons  Control visuals and inner metrics  Inter control layout  Custom application painting
  32. 32. Scaling Icons Hard to  See  Understand  Operate
  33. 33. Scaling icons  Icon bundles  Multiplefiles  “Archive” format – ICO (Win), ICNS (Mac)  “Layered” format – TIFF  Vector icons – SVG, PDF
  34. 34. Icons – Multiple Versions 16*16, 22*22, 32*32, 48*48, 64*64, 128*128 + SVG Artwork by Crystal and Oxygen
  35. 35. Scaling Controls
  36. 36. Internal Metrics Borders
  37. 37. Internal Metrics Borders Focus ring margin
  38. 38. Internal Metrics Borders Focus ring margin Focus ring
  39. 39. Internal Metrics Borders Focus ring insets Focus ring margin Focus ring
  40. 40. Internal Metrics Borders Focus ring insets Focus ring margin Icon text gap Focus ring
  41. 41. Using Scalable Units For Control Layout – Vista approach http://msdn2.microsoft.com/en-us/library/aa511453.aspx
  42. 42. Dialog Units  The vertical dialog box unit is equivalent to the character height.  The horizontal dialog box unit is equivalent to the average character width of the dialog box's font.  The average character width is calculated by finding the average text extent of the alphabetic character set. http://support.microsoft.com/kb/145994/en-us
  43. 43. Preserving Inter-Control Alignment
  44. 44. Preserving Inter-Control Alignment Degraded user experience
  45. 45. Inter-Control Alignment
  46. 46. Inter-Control Alignment
  47. 47. Scaling custom app visuals
  48. 48. Framework Scaling most exhaustive option requires deep integration from graphics drivers to the widget toolkit minimal changes to "modern" apps
  49. 49. Framework Scaling http://developer.apple.com/documentation/UserExperience/Conceptual/HiDPIOverview/ HiDPIConcepts/chapter_2_section_1.html
  50. 50. Framework scaling – Mac OS X
  51. 51. Framework scaling – Vista
  52. 52. Framework scaling – back to pixels  Sometimes the default scaling isn’t right  Per-pixelcustom art (Google map tiles)  Custom controls  Custom views where physical size fidelity matters (show 1 inch, irrespective of DPI)  Obtain the “scale factor”  Apply an “inverse” affine transform to get back to the “device” coordinate space
  53. 53. Testing your app  Changing the DPI setting for testing purposes  Windows Vista  Mac OS X  Ubuntu with Gnome  Ubuntu with KDE
  54. 54. Windows Vista  Display -> Personalize -> Adjust Font Size (DPI)
  55. 55. Mac OS X Leopard  /Developer/Applications/Graphics Tools/Quartz Debug.app  Tools -> Show User Interface Resolution
  56. 56. Ubuntu 8.04 Gnome  System -> Preferences -> Appearance -> Fonts -> Details
  57. 57. Ubuntu 8.04 KDE 4.0  Computer -> System Settings -> Appearance - > Fonts
  58. 58. Swing Recommendations  Don’t hard-code pixel values  Bundling multiple images from existing icon sets (Tango, Oxygen, Crystal, …)  Use SVG and Apache Batik  UseFlamingo transcoder on SVG images for pure Java2D rendering code  JGoodies Plastic / Substance / Nimbus LAFs  JGoodies Form layout manager with dialog units  MiG layout manager with logical pixels
  59. 59. Swing Recommendations - Windows  Use Toolkit.getScreenResolution() to convert pixels to points  OS-specific properties to query desktop font settings  win.defaultGUI.font  win.icon.font
  60. 60. Swing Recommendations - Linux  Use Toolkit.getScreenResolution() to convert pixels to points  OS-specific properties under Gnome to query desktop font settings  gnome.Gtk/FontName  gnome.Xft/DPI
  61. 61. Swing Recommendations – Mac OS X  OS-specific property  apple.awt.UIScaleFactor  Use inverse affine transform in paintComponent()  Translating the affine transform to avoid pixel cracks  Using the modulo of the scaled vs. unscaled coordinate space  Published example forthcoming
  62. 62. One more thing… Multi-display, multi-resolution
  63. 63. Related sessions  TS-6096 – Nimbus: The New Face of Swing. Thursday 10:50AM  BOF-6101 – Nimbus: Beyond the Basics. Thursday 7:30PM  TS-4928 - Creating Simple to Advanced Swing and SWT Layouts Easily with MiG Layout. Friday 1:30PM
  64. 64. Kirill Grouchnikov, Amdocs Inc. Mike Swingler, Apple Inc.

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