916b44e361
Each image has now two sizes implemented as follows:
- the pixel size is stored in private members pixel_w_ and pixel_h_
with public accessors pixel_w() and pixel_h()
- the FLTK size is stored in private members w_ and h_ and read by w() and h()
- when the image is constructed, the two sizes have the same value
- the protected w(int) and h(int) member functions set both FLTK and pixel sizes.
- the public scale(int, int) member function is essentially nothing but
set the FLTK size and don't change the pixel size.
- when the image is drawn, its FLTK size determines how big it is drawn, its pixel
size determines how much data are available to draw it.
FLTK 1.3.4 with FL_ABI_VERSION=10304 contained an equivalent member function
but only for the Fl_Shared_Image class.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12776 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
168 lines
8.4 KiB
Plaintext
168 lines
8.4 KiB
Plaintext
Changes in FLTK 1.4.0 Released: ??? ?? 2017
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General Information about this Release
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- FLTK 1.4.0 is based on FLTK 1.3.4 (released Nov 15 2016),
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see CHANGES_1.3 for more information.
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- CMake is the primary supported build system in FLTK 1.4.0 and later.
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CMake can be used to generate Makefiles, IDE project files, and
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several other build systems by using different "generators" provided
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by CMake (for instance Ninja, CodeBlocks, Eclipse, KDevelop3, Xcode, etc.).
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See README.CMake.txt for more information.
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- autoconf/configure is still supported by the FLTK team for backwards
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compatibility with older systems that lack CMake support.
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New Features and Extensions
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- (add new items here)
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- New member function Fl_Image::scale(int width, int height) to set
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the drawing size of an image independently from its pixel size. The
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same function was previously available only for class Fl_Shared_Image
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and with FL_ABI_VERSION >= 10304. New member functions Fl_Image::pixel_w()
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and Fl_Image::pixel_h() give the size in pixels of an image.
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- OpenGL draws text using textures on all platforms, when the necessary
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hardware support is present (a backup mechanism is available in absence
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of this support). Thus, all text drawable in Fl_Window's can be drawn
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in Fl_GL_Window's (STR#3450).
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- New member functions Fl::program_should_quit(void),
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and Fl::program_should_quit(int) to support detection by the library
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of a request to terminate cleanly the program.
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- MacOS platform: the processing of the application menu's "Quit" item
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has been changed. With FLTK 1.3.x, the application terminated when all
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windows were closed even before Fl::run() of Fl::wait() could return.
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With FLTK 1.4, Fl::run() returns so the app follows its normal termination path.
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- MacOS platform: Added support for rescaling the GUI of any app at run-time
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using the command/+/-/0/ keystrokes.
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- MSWindows platform: Added support for rescaling the GUI of any app
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at run-time using the ctrl/+/-/0/ keystrokes. All applications
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detect the desktop scaling factor and automatically scale their GUI
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accordingly. This effectively renders WIN32 FLTK apps "per-monitor DPI-aware"
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whereas they were "DPI-unaware" with FLTK 1.3.4.
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- FLTK apps on the MacOS platform contain automatically a Window menu, which,
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under MacOS ≥ 10.12, allows to group/ungroup windows in tabbed form. The new
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Fl_Sys_Menu_Bar::window_menu_style() function allows to specify various
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styles for the Window menu, even not to create it.
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- New function: int fl_open_ext(const char* fname, int binary, int oflags, ...)
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to control the opening of files in binary/text mode in a cross-platform way.
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- New Fl_SVG_Image class: gives support of scalable vector graphics images
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to FLTK using the nanosvg software.
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- Fl_Text_Selection got a new method length() and returns 0 in length()
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and in all offsets (start(), end(), position()) if no text is selected
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(selected() == false). The behavior in FLTK 1.3 and earlier versions
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(returning undefined values if !selected()) was confusing.
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- Added support for MacOS 10.13 "High Sierra".
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- New method Fl_Group::bounds() replaces Fl_Group::sizes() which is now
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deprecated. Fl_Group::bounds() uses the new class Fl_Rect that contains
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widget coordinates and sizes x(), y(), w(), and h() (STR #3385).
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Documentation for bounds() and its internal structure was added.
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- X11 platform: Added support for HiDPI displays and for rescaling any window
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at run-time under user control. Under the gnome desktop, FLTK applications
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detect the current gnome scaling factor and use it to scale all FLTK windows.
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Under other desktops, the FLTK_SCALING_FACTOR environment variable can be
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used to set the starting scaling factor of all FLTK applications.
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In addition, it is possible to rescale all FLTK windows mapped to a screen
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by typing ctrl-'+' (enlarge), ctrl-'-' (shrink) or ctrl-'0' (back to starting
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factor value). Windows moved between screens adjust to the scaling factor of
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their screen. This supports desktops mixing screens with distinct resolutions.
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- New method shadow(int) allows to disable the shadows of the hands
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of Fl_Clock, Fl_Clock_Output, and derived widgets.
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- New method Fl_Tabs::tab_align() allows to set alignment of tab labels,
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particularly to support icons on tab labels (STR #3076).
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- Added '--enable-print' option to configure effective under X11 platforms
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and with 'yes' default value. Using '--enable-print=no' removes print
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and PostScript support from the FLTK library, thus reducing its size.
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- Added Fl_Surface_Device::push_current(new_surface) and
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Fl_Surface_Device::pop_current() to set/unset the current surface
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receiving graphics commands.
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- X11 platform: Added support for drawing text with the pango library
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which allows to draw most scripts supported by Unicode, including CJK
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and right-to-left scripts. The corresponding CMake option is
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OPTION_USE_PANGO. The corresponding configure option is --enable-pango.
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This option is OFF by default.
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New Configuration Options (ABI Version)
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- The library can be built without support for SVG images using the
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--disable-nanosvg configure option or turning off OPTION_USE_NANOSVG in CMake.
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- FLTK's ABI version can be configured with 'configure' and CMake.
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See documentation in README.abi-version.txt.
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1.4.0 ABI FEATURES
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- None. FLTK 1.4.0 has a new ABI, breaking 1.3.x ABI.
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Other Improvements
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- (add new items here)
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- The include file for platform specific functions and definitions
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(FL/x.H) has been replaced with FL/platform.H. FL/x.H is deprecated
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but still available for backwards compatibility (STR #3435).
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FL/x.H will be removed in a (not yet specified) future FLTK release.
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We recommend to change your #include statements accordingly.
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- The Fl_Boxtype and Fl_Labeltype definitions contained enum values
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(names) with a leading underscore (e.g. _FL_MULTI_LABEL) that had to
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be used in this form. Now all boxtypes and labeltypes can and should
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be used without the leading underscore. A note was added to the enum
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documentations to make clear that the leading underscore must not be
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used in user code, although the enum documentation still contains
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leading underscores for technical reasons (internal use).
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- The blocks demo program got a new keyboard shortcut (ALT+SHIFT+H) to
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reset the user's high score. It is now slower than before in higher
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levels, hence you can expect higher scores (due to a bug fix in the
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timer code). You can use the '+' key to increase the level at all times.
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- Some methods of Fl_Tabs are now virtual and/or protected for easier
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subclassing without code duplication (STR #3211 and others).
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To be continued...
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- Separated Fl_Input_Choice.H and Fl_Input_Choice.cxx (STR #2750, #2752).
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- Separated Fl_Spinner.H and Fl_Spinner.cxx (STR #2776).
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- New method Fl_Spinner::wrap(int) allows to set wrap mode at bounds if
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value is changed by pressing or holding one of the buttons (STR #3365).
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- Fl_Spinner now handles Up and Down keys when the input field has
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keyboard focus (STR #2989).
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- Renamed test/help.cxx demo program to test/help_dialog.cxx to avoid
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name conflict with CMake's auto-generated target 'help'.
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- Many documentation fixes, clarifications, and enhancements.
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Bug Fixes
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- (add new items here)
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- Fix Fl_PNG_Image error handling. An error was potentially caused
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by error handling of the image library with setjmp/longjmp.
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- Fix Fl_Browser background and text color parsing (STR #3376).
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- Fix Windows CreateDC/DeleteDC mismatch (STR #3373).
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- Fix Fl_Tabs label drawing for Fl_Window children (STR #3075).
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- Fix line number alignment in Fl_Text_Display/Editor (STR #3363).
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- Fix ignored buffer pre-allocation (requestedSize) in Fl_Text_Buffer.
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See fltk.general "Fl_Text_Buffer constructor bug" on Dec 5, 2016.
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- Fix build with configure --enable-cairo --enable-cairoext,
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see this report in fltk.general:
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https://groups.google.com/forum/#!topic/fltkgeneral/x80qQ6wt0s4
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Removed Features
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- Bundled IDE project files (Xcode and Visual Studio) have been
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removed. Please use CMake to generate your IDE project files.
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See README.CMake.txt for more information.
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Changes in FLTK 1.3
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See CHANGES_1.3
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Changes in FLTK 1.1
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See CHANGES_1.1
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Changes in FLTK 1.0
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See CHANGES_1.0
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