NEWS

v1.4.1
------
- quieter output from mp4 device
- bug fix in release workflow

v1.4.0
------
- added mp4 driver, can simply give "file.mp4" as the device to generate mp4 file
- can amend flags to ffmpeg using GIZA_FFMPEG_FLAGS environment variable
- automated cleanup of temporary .png files used to make the movie
- add registered and copyright sign as symbols (thanks To Hiroyuki Ito)
- Add support for '1' and '2' options to giza_box (thanks to Hiroyuki Ito)
- Add support for PG[SQ]ITF. PGPLOT has three image transfer functions defined for PGIMAG: linear, log, sqrt. These are now implemented (thanks to Harro Verkouter)
- Fix giza_set_colour_table to set colour indices. The function would warn about inconsistent entries in the controlPoints and return with an error, not setting the colour-index table (thanks to Harro Verkouter)
- Follow PGPLOT auto-linestyle in PGCONT (thanks to Harro Verkouter)
- Address char height/line width scaling issues: According to PGPLOT documentation, symbols are drawn using current attributes character height and line width  (thanks to Harro Verkouter)

v1.3.2
------
- bug fix with spaces at end of string causing failure on open_device in Fortran interface (#35)

v1.3.1
------
- giza_axis and giza_tick added to libcpgplot interface (#12)
- fixed various documentation issues
- API documentation automatically updates via github workflow

v1.3.0
------
- new library functions giza_set_motion_callback and giza_end_motion_callback
- can now specify a callback function func(x,y,mode) that will be called every time the cursor moves
- implemented giza_axis and giza_tick with replacement functionality for PGAXIS and PGTICK (#12)
- Fortran API no longer trims text strings before passing them to giza routines. This enables one to send a string of blank characters with an opaque background colour in order to erase previously drawn text

v1.2.1
------
- bug fix specifying device at prompt with directory path, e.g. dir/file.png

v1.2.0
------
Features:
- new giza_set_number_format() sets format to use by giza_box() (thanks to chafar)
- giza_open() now detects and handles errors occurring during setup of the new device
- PGEND()/cpgend() now closes all open devices, as per documentation (thanks to H. Verkouter)
- giza build includes freetype and fontconfig libraries
- improved font memory management (thanks to H. Verkouter)

Bug fixes:
- build failure caused by giza_box_time fixed (#21)
- bug fix with internal logic in naming png files if blank page exists (thanks to Aard Keimpema, #28)
- seg fault fixed when multiple devices are opened and closed in random order (thanks to H. Verkouter)
- fixed possible buffer overflow in giza_format_number (thanks to H. Verkouter)
- avoid the 'initial declarations are only allowed in C99 mode' error (thanks to M. Hutchison)

Other:
- deleted unused _giza_change_size() function
- updated documentation for github
- automated build checking, api documentation and release-on-tag via github actions

v1.1.0
------
Features:
- various PGPLOT compatibility improvements
- better compatibility with PGPLOT marker symbols (#5, #16)
- reworked PGPAP implementation

Bug fixes:
- segmentation fault in _giza_parse_string fixed (#13)
- pgqinf issue fixed (#11)
- splash movie mode/ resize X-window bug fixed (#18)
- Macports build failure fixed (#19)
- cpggray issue fixed
- fix backspace handling (\b) in text strings

v1.0.0
------
A swag of new/missing features, mainly thanks to excellent contributions from Harro Verkouter:

- implementation (port) of PGTBOX / giza_tbox, giving option for axis labelling in days, minutes and seconds
- ability to resize X-windows
- wider character set supported
- support for PGBOX 'I' and 'P' options
- support for backspace (\b) in printing strings

-----------------------------------
Changes in 0.9.5 compared to 0.9.4
-----------------------------------
      (web) moved to github hosting
      bug fix with shaded error bars
      (giza_box) bug fix with spacing between box and numbers when numbers written on top of box
      fix compiler warning in giza-viewport/giza-window
      updated .gitignore to ignore .lo and .la files
      (giza_box) bug fix with drawing major axis only; also with drawing grid (iaxis=1)
      fix string allocation (thanks to Ole Streicher)

-----------------------------------
Changes in 0.9.4 compared to 0.9.3
-----------------------------------
      updated readme
      (os/x) fixed X11 library path for OS/X El Capitan
      docs->doc (thanks to Joachim Frieben)
      test->test/C test/F90 (thanks to Joachim Frieben)
      test->test/C test/F90 (thanks to Joachim Frieben)
      interface/*->src (thanks to Joachim Frieben)
      include/*.h->src (thanks to Joachim Frieben)
      perl scripts updated to point to ../src instead of ../interface (thanks to Joachim Frieben)
      removed include and lib dirs (thanks to Joachim Frieben)
      CHANGES->NEWS and added ChangeLog (thanks to Joachim Frieben)
      added pkg-config metadata files (thanks to Joachim Frieben)
      bug fixes with variables defined in headers; now uses extern and declared in .c files
      replaced Makefiles with automake and autoconf scripts (thanks to Joachim Frieben)
      replaced Makefiles with automake and autoconf scripts (thanks to Joachim Frieben)
      added autotools-generated files for distribution (thanks to Joachim Frieben)
      added autoconf scripts to build dir
      added versioning of giza-version.h to configure stuff
      updated build to use pkg-config to find X11 and cairo libs
      removed obsolete include dir (thanks to Joachim Frieben)
      removed obsolete dirs in svn (thanks to Joachim Frieben)
      updated INSTALL instructions for autotools build (thanks to Joachim Frieben)
      test-error-bars-2.c -> test/C (thanks to Joachim Frieben)
      update libtool version info + added comments
      build libgiza before libcpgplot; also copy giza-fortran.F90 to include directory
      libpgplot and libcpgplot link to libgiza instead of including .o files; faster build (thanks to Joachim Frieben)
      added fallback options for cairo and x11 on OS/X if pkg-config not available
      updated INSTALL instructions
      patch for negative marker indices; now matches expected PGPLOT behaviour; contributed by Joachim Frieben
      0.9.4

-----------------------------------
Changes in 0.9.3 compared to 0.9.2
-----------------------------------
      added FFLAGS setting and -fPIC to Makefile
      fixed build of test-fortran
      renamed test-xw.c->test-giza-xw.c (thanks to Joachim Frieben)
      added test-2D to default tests
      test-arrow now works as expected (thanks to Joachim Frieben)
      test-png spits out sensible number of files
      added separate test-svg; test-pdf now outputs pdf
      added testpg target to compile pgplot tests (thanks to Joachim Frieben)
      better error handling in png device (thanks to Hugh Williams)
      BUG FIX with long device names; string length increased to 256 chars; added error checks for strings too long (thanks to Hugh Williams)
      flush stdin after giza prompt to avoid repeated device tries
      flushing achieved with fflush instead of getchar to avoid unnecessary hangs
      add -I$(PREFIX)/include/cairo to include flags
      version bumped to 0.9.3

-----------------------------------
Changes in 0.9.2 compared to 0.9.1
-----------------------------------
      workaround for macports issue with all target
      reverted build targets; also install giza.mod into include dir by default
      bug fix with giza.mod in install target
      bug fix with typedef of line width in giza fill (thanks to W. Dehnen)
      fine-tuning of line styles; added offset to patterns to give better legend
      use $(FC) instead of $(LIBTOOL) to compile shared Fortran library (thanks to Sean Farley)
      0.9.2

-----------------------------------
Changes in 0.9.1 compared to 0.9.0
-----------------------------------
danielprice (6):
      updated docs for fortran interface
      bug fix with shaded error bar plotting (causing shading of outside not inside)
      implemented sorting in mark_cursor/PGNCUR
      minor changes to build: default target is default, not all to avoid macports issue
      added test for pgaxis routines
      version 0.9.1

-----------------------------------
Changes in 0.9.0 compared to 0.8.1
-----------------------------------
danielprice (27):
      sub-panelling routines implemented
      can use /xs, /xserve and /xwindow to specify X-windows device
      added interfaces for histogram routines
      giza_histogram implemented; compatible with PGHIST
      implemented giza_histogram_binned; implements PGBIN
      clipping of plot for sub-panels now works as expected; advance_subpanel returns flag when page changes
      docs fixed for viewport routines
      bug fix with uninitialised variables if bad args to giza_viewport
      sub-panelling now works; various bugs fixed with this
      deleted obsolete branch
      comment removed
      BUG FIX with missing last page on interactive devices if prompting is on
      BUG FIX with flushing if multiple XW devices used
      BUG FIX with panel changing if more than one row
      BUG FIX with clipping and positioning of panels if more than one row
      character size scaled according to panel height not page height
      better margins in PGENV/giza_environment
      version 0.9.0

-----------------------------------
Changes in 0.8.1 compared to 0.8.0
-----------------------------------
danielprice (16):
      updated changelog
      added cpgtbox interface to giza_box_time; also bug fix with cpgswin
      interface added for giza_get_device_id in giza.h
      added test-2D thanks to Jean-Francois Gonzalez
      affine array does not need to be passed for most rendered images in simple f90 interface
      updated links in docs
      bug fix in docs referring to giza_colour_ramp, should be to giza_set_colour_table
      added link to giza_set_colour_table in docs
      updated text scanner (uses unicode Sun symbol)
      minor change to 2D test
      can use \bf or \fb to get bold face in strings
      BUG FIX with font changing in rotated strings; also original font now preserved after string is printed
      version bumped to 0.8.1
      giza-save uses GIZA_FONT_LEN to be consistent
      text routines handle escape sequences for backslash (\\), underscore (\_), hat (\^) and curly brackets
      support for limited scope of font changing commands in strings, i.e. {\bf text} and {\it text}

-----------------------------------
Changes in 0.8.0 compared to 0.7.6
-----------------------------------
danielprice (42):
      gfortran version checking removed (obsolete/no longer necessary)
      floating exception fixed in giza_set_window_equal_scale if width=height=0
      newline removed
      BUG FIX with vector arrows in double precision
      link for -lgfortran fixed
      added autolog feature: controlled via begin_autolog/end_autolog routines and GIZA_LOG environment variable
      silenced warning regarding colour not set if NaNs input to giza-render routines
      better cleanup on failure to open device; does not require giza_close_device call
      multiple device support implemented (LOTS of code changed): added giza_select/pgslct routines to switch between de
      deviceOpen and drawn now specific to each device: removed sizeSpecified and reworked the way devices are opened to
      implemented resizing of X-window/bitmap devices via giza_paper_size (not perfect yet)
      numbering of devices now from 1->N externally, from 0->N-1 internally; implemented PGQID/giza_get_device_id
      start/stop prompting setting now specific to each device, not global
      typo fixed
      window settings now specific to each device
      viewport settings now specific to each device
      commented out temporary stuff
      buffering setting is specific to each device
      fill style and settings specific to each device
      arrow style settings specific to each device (giza_arrow_t)
      line width setting specific to each device
      line style setting specific to each device
      fontExtents stored specific to each device; not globally
      fontAngle setting specific to each device
      character height setting specific to each device
      get_line_style always returns something even if giza not started
      text background colour setting specific to each device
      clip setting specific to each device
      bug fix with default text background (should be -1 not 0)
      debugging info removed
      device help shows filename option (file.png instead of /png)
      updated docs on return value for giza_open_device
      debugging/commented out cruft removed
      added integer parameters giving version number info in Fortran interface
      added docs for giza_vector
      added giza version routine to query version info
      added giza_version routine to Fortran interface
      bug fix with documentation of giza_version
      updated status of PGPAP/cpgpap
      typo fixed in api script
      updated changelog for 0.8.0
      extra files included in release tarball

-----------------------------------
Changes in 0.7.6 compared to 0.7.5
-----------------------------------

danielprice (4):
      better clean targets for Makefiles
      bug fix with box being drawn randomly due to giza_stroke call
      fortran interface compiles with ifort+debugging; thanks to Andy McLeod
      minor fixes to install target; should now work with Macports

-----------------------------------
Changes in 0.7.5 compared to 0.7.4
-----------------------------------

danielprice (18):
      README included in distribution
      README added to repository
      routines added to set colour representation in rgb
      various line palettes added; can be selected with GIZA_PALETTE environment variable
      build respects DESTDIR conventions
      BUG FIX with log axis labelling if interval < 10
      new colour palette options added
      giza_stroke called after device opened; avoids black page bug if no box/window/viewport called prior to drawing
      BUG FIX with arrow heads becoming small in certain directions
      giza arrow uses semi-angle instead of full angle, as in PGPLOT (pgdemo1)
      added box/more arrow tests
      XW driver no longer uses XNextEvent to prevent compile problems on Ubuntu; also initial window call uses WhitePixel as defined by Xlib
      LICENSE file renamed to COPYING
      CHANGES file added; README now contains small blurb
      updated INSTALL instructions
      added AUTHORS file
      compiler warning fixed
      compiler warnings with strncpy fixed (clang)

-----------------------------------
Changes in 0.7.4 compared to 0.7.3
-----------------------------------

danielprice(36)
      bug fix with gfortran4.6 and giza_open interface
      work on giza_plot continues; handles and renders 2D array
      giza_units_normalised added
      optional viewport arguments to giza_plot handled correctly
      added giza_render_alpha routines for brightness-corrected rendering
      defined GIZA_FOREGROUND and GIZA_BACKGROUND
      added tests for the xw bug
      added Makefile for tests
      test reports cairo version
      updated xw test
      added png test
      better error handling on closing vector surfaces (picks up cairo bug in Lion)
      makefile compiles several tests
      use surface_finish and checks for errors when closing xlib surface
      giza-io routines declare const char* not just char; avoids compiler warnings
      typo fixed
      file headers updated and unified across all files
      updated comments in cpgplot.h
      fixed comment so does not get deleted by header script
      uses X11DIR to specify libX11 location in Makefile
      minor change to script
      version number bumped
      xw driver returns key bindings for right/middle clicks and scroll events
      circle cursor uses filled, partially transparent circle similar to rectangle selection
      improvements to cursor routines: mark_with_cursor handled by get_key_press routine,
       allows polygon selection to be redrawn on the fly
      added giza_rectangle_rounded routine for plotting rectangles with rounded corners
      BUG FIX with giza_function_x/y/t interfaces with gfortran v4.7; also giza_plot_line now giza_line in Fortran interface
      minor change to comment
      better handling of valMin=valMax in giza_render_float
      can specify hardcopy devices just using the filename e.g. crap.png instead of having to type crap.png/png
      test Makefile compiles a fortran example
      png device names first file differently depending on whether or not it is part of a sequence
      uses _0000 numbering if part of sequence for eps and svg devices (by renaming file when changing page)
      commented out X-windows error-handling routine to avoid compilation problems in Ubuntu

-----------------------------------
Changes in 0.7.3 compared to 0.7.2
-----------------------------------

danielprice (35):
      BUG FIX with default viewport on first page (character height not initialised correctly), affects giza_environment
      minor cleanups
      full range of box/env options implemented (grid lines, log axes)
      minor cleanup, commented-out stuff removed
      improved readability of giza_box; variables better named; docs added for M and L options
      obsolete comment removed
      bug fix with .png.png naming in png device; change page now calls close_device_png to avoid repeated code
      PGQINF fully implemented; additional queries added to giza_query_device
      fixed icc warnings for eps driver
      minor fix to documentation
      freetype font loading added (experimental, not compiled by default)
      high level giza_open/giza_close interfaces added to Fortran interface
      routines/interfaces added for pgtbox/giza_box_time (currently just calls giza_box with options unchanged)
      X11 driver no longer uses XDefaultGCOfScreen so should work on older systems
      bug fix with gfortran4.6 and giza_open interface
      work on giza_plot continues; handles and renders 2D array
      giza_units_normalised added
      optional viewport arguments to giza_plot handled correctly
      added giza_render_alpha routines for brightness-corrected rendering
      defined GIZA_FOREGROUND and GIZA_BACKGROUND
      added tests for the xw bug
      added Makefile for tests
      test reports cairo version
      updated xw test
      added png test
      better error handling on closing vector surfaces (picks up cairo bug in Lion)
      makefile compiles several tests
      use surface_finish and checks for errors when closing xlib surface
      giza-io routines declare const char* not just char; avoids compiler warnings
      typo fixed
      file headers updated and unified across all files
      updated comments in cpgplot.h
      fixed comment so does not get deleted by header script
      uses X11DIR to specify libX11 location in Makefile

-----------------------------------
Changes in 0.7.2 compared to 0.7.1
-----------------------------------

danielprice (34):
      bug fix in default viewport causing labels with giza_label to be clipped
      giza-annotate code shortened (unnecessary extra lines removed)
      bug fix with chopped labels in giza_label
      updated list of fortran params automatically
      changed order of long/short dashes; line styles in libpgplot now always match pgplot
      test added for memory leaks in X11
      bug fix with log labelling of 1 and 10
      valgrind bug fix with init_device_list using uninitialised string
      basic test of multiple open/close calls added
      markerHeight declared static
      bug fix with array overflow in giza_contour
      colour index variables declared static
      uses explicit font face creation/destruction to avoid memory leaks (cairo >=1.8 only)
      bug fixes with generation of api documentation
      mistaken const declarations removed; replaced with static
      implemented semi-transparent error bar plotting
      [PATCH contributed by Daniel Kelson] Arrays now passed as C pointers, not fixed size; fixes cpgplot interface issues; tested against splash and works fine
      updated cpgplot interface to include imaging routines; now similar to libpgplot in implementation level
      [PATCH contributed by Daniel Kelson] viewport and window now handle xmin>xmax and ymin>ymax correctly
      added const to all array input variables; consistent with cpgplot interface
      public header files now live in the include directory rather than being copied around

-----------------------------------
Changes in 0.7.1 compared to 0.7.0
-----------------------------------

danielprice (31):
      updated include paths
      better flush of xevents
      silenced spurious warnings in giza-points and giza-polygon
      uses libtool instead of c compiler to build shared library
      more warnings silenced
      handles failure to call close_device; also bug fix with _giza_lowercase
      handles failure to call close_device; also bug fix with _giza_lowercase
      bug fix with whitespace in device names
      whitespace removed from strings in when passed through giza-fortran interface
      better linewidth conversion between pgplot and giza in libpgplot
      implemented option to give exact pgplot colour table
      better placement of text above viewport in giza-annotate
      spurious whitespace at end of lines removed (script)
      bug fix with len_trim in f2c string conversion
      added giza_colour_palette routines; libpgplot uses PGPLOT colour palette by default
      shared lib extension determined automatically
      build more portable on os/x vs linux
      still working on dylib vs .so; works on both now
      minor changes to Makefile structure
      id decreased again when device close (fixes spurious warnings)
      all drivers call get_filename_for_device; avoids trim/case issues
      added $PREFIX/include to include line
      checks gfortran version number and gives error if gfortran is too old to compile fortran interface
      gfortran version checks work with old gfortran (v4.1.2) and give error
      standard viewport (as used by giza_environment) now leaves boundary of 4 character heights on each size rather than a fixed fraction
      added comments to postscript header
      set_viewport_inches uses Dev.width not Dev.widthCM (safer)
      paper size queries use Dev.width not Dev.widthCM (safer)
      rejigged the way the paper size is set; can now be set in different units; set_paper_size calls redone; Dev.widthCM and Dev.heightCM removed; less confusing all round
      header included for internal routine
      bumped version number