SDL2 User Interface

Features

• Graphical renderer is used to show output on the display
• Images get a dark background circle when you press them, which decreases fast when released.
• No use of a big SDL_Surface, but each button is a seperate SDL_Surface, more flexible and easier to change to SDL2.0
• 2D matrix of buttons is possible with soft scroll in verticle or horizontal direction.
• After glow for each button, image, background in different shapes.
• Play audio wave forms automatic
• Background for several objects with rounded corners for any radius
• Backgrounds can have single colour
• Backgrounds can have a vertical change gradually from one to another colour
• Backgrounds may have a pyramid change gradually from one to another colour
• Backgrounds may be split in 2 colours, top half and bottom half have another colour
• Backgrounds may cut a piece from a background picture, which requires a background image of your screen resolution.
• Bar graphs are easy to display bar charts
• Button response. Buttons become dark when you press them and slowly become light again when released.
• Buttons with text and image may be created and displayed
• Buttons have a border which is adjustable in width
• Buttons may have a text inside
• Buttons need to align the picture on 8 positions around the text
• Text may be in all colours only 1 colour
• Text can be in any font, font size for arabian and other font and other font size for chinese/japanese.
• Text can have filtering for display or no filtering for printing
• Text can be in a bitmap to do other things than display (e.g. print)
• Text can have a shade
• Buttons can be positioned every 8 pixels and have a width with a multiple of 8 pixels
• Buttons can have a margin between buttons of any number of pixels
• Button text can have a margin of any number of pixels from the edge of a button
• Buttons can be moved to any location
• Buttons can be visibile or invisible
• Buttons may be dragged around the screen if enabled
• Buttons can be in many languages, with an external accessor for languages and text
• Buttons choose the optimal picture size with several pictures on the disk
• Buttons have a background with all posibilities of a background
• CtextButton is derived from button to show text
• CmenuButton is derived from button to show a menu item
• CbottomButton is derived from button to show a button on the bottom of the screen
• CkeyboardButton is a derived from button to show a keyboard
• CimageButton is derived from button to show an image inside the button
• CheaderButton is derived from button to show a header title on each screen
• CmatrixButton is derived from button and adjusted for 1D and 2D scrolling
• CgraphButton is derived from button to show a graph
• CiconButton is derived from button to show an icon
• The handwriter can be used to input Chinese Japanese and others
• The handwriter is derived from the open source project Zinnia
• The handwriter works with Simplified and Original Chinese
• The handwriter shows the 50 most look-a-like symbols in a swipe dialog
• The handwriter has thick lines to show
• The handwriter can be cleaned externally to start a new symbol
• The handwriter can have any size on the screen
• The handwriter paints itself for updates on screen
• The handwriter searches for symbols every time the finger releases the touchscreen

Follow SDL2 User Interface

SDL2 User Interface Web Site