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* Only reload if data files were changed (replacement)Lars Henriksen2018-10-211-1/+3
| | | | | | | | | | | | | | This is a replacement for commits 57dd3d6 and 912124b. The idea is to move the check for modified files and the list initialization into io_load_data(), and let io_load_data() decide what to load. A new argument is used to force a load. The return code from new_data() (the renamed version of io_check_data_files_modified()) tells which files have changed. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Reload data after resolving save conflict (improved)Lars Henriksen2018-10-211-1/+8
| | | | | | | | | | | | | | | After resolving a save conflict with the merge tool, a save operation has, in effect, occurred, and data files must be reloaded to import the result of the conflict resolution. This is a replacement for commit 2fe9c7e. The operations concerned with the user interface are kept out the io-operations (as in all other cases) and take place at the command-level in calcurse.c. and not at the io-level (io.c). Shorter, more concise prompt texts. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Start and end time validation.Lars Henriksen2018-08-251-3/+3
| | | | | | | | | | All appointment times are checked for validity. Overflow by time arithmetic is detected. End times are checked when appointments are moved. Three functions are involved: parse_datetime(), parse_duration() and parse_date_duration(); they all have a new argument for validation purposes. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* New support functions for input validation.Lars Henriksen2018-08-251-0/+3
| | | | | | check_sec(), overflow_add(), overflow_mul() Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Solve deadlock in notification barLars Henriksen2018-07-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | calcurse deadlocks when 1) an upcoming appointment is on display in the notification bar, 2) an external command (like help) is started, 3) the time for the upcoming appointment arrives, and 4) the external command is exited. The notification bar thread is stopped while the external command is running. Upon exit from the external command, the n-bar thread is restarted and calcurse locks. The cause is the way in which the main notification bar thread is stopped: static pthread_t notify_t_main; void notify_stop_main_thread(void) { if (notify_t_main) { pthread_cancel(notify_t_main); pthread_join(notify_t_main, NULL); } } Objects of type pthread_t are opaque and should not be accessed directly. Initially notify_t_main is an uninitialised static variable (0), but later it has a value, which may or may not be the thread id of the notification main thread. Note that the thread id after exit of a thread may become the thread id of a new thread. Thus the variable set when the thread is created, is invalid after exit of the thread. Specifically, the first time notify_stop_main_thread() is called (by notify_start_main_thread() before the thread is created) is harmless (because notify_t_main is 0). Calling notify_stop_main_thread() later may be either OK because the main thread is running, or harmless because no thread with id notify_t_main is running: the two functions will fail with return value ESRCH (no such process), or fatal because an unrelated thread with this thread id is running: it will be cancelled, and the join may or may not succeed depending on whether the thread is joinable or detached. The "unrelated thread" could be the next-appointment thread, notify_thread_app, launched by notify_check_next_app(). Always calling notify_stop_main_thread() before starting the main thread becomes fatal when notify_check_next_app() is called shortly before notify_start_main_thread(). This is the case in the scenario described. The next-app-thread is then running when notify_stop_main_thread() is called, and apparently it has the thread id of the old main thread (confirmed by logging the return values from pthread_cancel() and pthread_join(); the first succeeds while the second fails with EINVALID which means that the thread is not joinable). The next-app-thread will therefore exit without unlocking mutexes. Ensure that notify_t_main, in case the notify main thread is not running, has a value that it will never have when it is running. A possibility is the thread id of the main() calcurse process (returned by pthread_self()). Check for this condition in notify_stop_main_thread() and set notify_t_main when the thread is stopped. Similar changes have been introduced for the periodic save thread and the calendar date thread. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Key bindings for UTF-8 encoded charactersLars Henriksen2018-06-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Internally characters (keys) have two representations: integers and key names. Key names are characters strings, usually the name of the character; e.g., the character A has the representations 65 and "A", and the tab character the representations 9 and "TAB". The function keys_int2str() turns the integer representation of a key/character into the key name. For display purposes the key names are usually confined to have display width at most three. Some curses pseudo-keys have longer key names; e.g., the back-tab character is "KEY_BTAB". A long key name makes a character difficult to recognize in the status bar menu. The key name of a multibyte, UTF-8 encoded character is the conventional Unicode name of the code point; e.g., the character ü has key name "U+00FC" because ü is the code point 0xFC. Most of these look alike in the status bar menu. The patch makes the key name of a multibyte character look like that of a singlebyte character: the character itself, i.e. the key name of the character ü is "ü". The main tool is implementation of a utf8_encode() routine. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Rename utf8_ord() to utf8_decode()Lars Henriksen2018-06-031-1/+1
| | | | | | | Purely for readability and in preparation for the counterpart utf8_encode(). Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add option to specify the configuration file usedQuentin Hibon2018-05-281-1/+1
| | | | | | | | | The configuration file (~/.calcurse/conf by default) can now be specified with -C or --conf. Workaround for GitHub issue #86. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Scrollbar and right window border (corrected)Lars Henriksen2018-05-261-3/+6
| | | | | | | | | | | | | | | | | When a scrollbar is on display in APP or TOD windows, the right vertical border (outside the scrollbar) is not highlighted when the window is selected. The scrollbar is always highlighted: - when APP or TOD is deselected - in configuration windows where borders otherwise are not The patch moves the scrollbar parameters (except highlight) from arguments of draw_scrollbar() to the function itself. The highlight argument was 1; instead it is set higher in the call hierarchy (wins_update_panels()) and passed on down. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Scrollbar and right window borderLars Henriksen2017-12-101-1/+1
| | | | | | | | | | | | | | | | | | | When a scrollbar is on display in APP or TOD windows, the right vertical border (outside the scrollbar) is not highlighted when the window is selected. The scrollbar itself is always highlighted: - when APP or TOD is deselected - in configuration windows where borders otherwise are not The patch moves the scrollbar parameters from arguments of draw_scrollbar() to the function itself. The highlight argument to draw_scrollbar() was always 1. Instead call circumstances are figured out and highlight set accordingly. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Default colour as foreground colourLars Henriksen2017-12-101-1/+5
| | | | | | | | | | | | | In the default colour setup (white on black), white could only with great difficulty be used as customized foreground colour, because the colour pair COLR_CUSTOM then was identical to COLR_DEFAULT (default on default). This made it impossible to distinguish the selected element in lists. The patch turns on the video attribute bold when default is chosen as foreground colour. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update UTF-8 base codeLars Henriksen2017-12-071-6/+3
| | | | | | | | | | UTF-8 encodes characters in one to four bytes (since 2003). Because 0 is a valid code point, the decode function utf8_ord() should return -1, not 0, on error. As a consequence utf8_width() should return 0 for a continuation byte (as it did previously). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Check for the year span 1902-2037Lars Henriksen2017-11-231-3/+8
| | | | | | | | | | | | | Reintroduce year check for systems with a 32-bit time_t type. Remove the lower limit (1902) for systems with a 64-bit time_t. This limits movements in the calendar (for 32-bit systems) and in no way ensures constistency of data. Commit a12833e (Handle dates past January 19th, 2038, 2015-01-19) removed the upper limit (2037) on dates but left the lower limit (1902). It did not ensure the support of the target system. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Function cleanup in custom.cLars Henriksen2017-11-231-3/+0
| | | | | | | Remove two remnants: custom_color_theme_name() and custom_set_swsiz(). Make static and rename custom_confwin_init() into confwin_init(). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove unused argument from wins_other_status_pageLars Henriksen2017-11-031-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix multiple popup windowsLars Henriksen2017-10-291-0/+1
| | | | | | | | | | The window was not deleted if an "already in use"-key was detected, and a new one was created as the loop was reentered. Create/delete of the popup are moved outside the loop. A redrawwin() call is needed to have the window displayed again. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add parse_date_interactive()Lukas Fleischer2017-10-261-2/+2
| | | | | | | | | Add a wrapper around parse_date() which picks the current input date format as well as the currently selected day and passes both values to parse_date(), alongside with the parameters passed to parse_date_interactive() itself. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix spelling of "frequency"Lars Henriksen2017-10-231-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support key bindings for all escape keysLars Henriksen2017-10-231-5/+6
| | | | | | | | | | | | | | | | | | | | | All key names for ordinary ASCII keys as well as for escape keys (pseudo keys) are cached in a lookup-table, keynames[], at startup. Mapping between key names (strings) and key codes (integers) in keys_str2int and keys_int2str) is performed through this table. The key names used are those returned by the keyname() function of ncurses. But to accommodate some of the names to the three-letter space available in the status menu, four ordinary keys and the most common escape keys have calcurse abbreviated names: ESC, TAB, RET, SPC and LFT, HOM, PgU, INS, F1, etc. All keys known by ncurses can be bound. Thus the check for not recognized keys in the key configuration menu becomes superfluous. The only keys that cannot be bound, are those escape keys not known to ncurses, i.e. not described by the terminfo database for the terminal type in use. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use a shared input/output mutexLukas Fleischer2017-09-081-2/+0
| | | | | | | | | Replace the save mutex with a common mutex, which is locked whenever read or write operations on the data files are performed. Also, since this mutex is an implementation detail, mark the locking functions static and remove them from the header file. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Only reload if data files were changedLukas Fleischer2017-09-081-1/+1
| | | | | | | | Instead of blindly reloading data in io_reload_data(), compare the stored hashes of the data files with hashes of the current file contents and only reload if any of the hashes differs. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make the day heading position configurableLars Henriksen2017-09-081-0/+7
| | | | | | | | | The date at the top of the appointments list may be positioned either to the left, in the middle or to the right. Default is to the right. Can be configured from the general options menu. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Remove phase of moon featureLars Henriksen2017-09-081-1/+2
| | | | | | | | | | The computation never really worked before and it seems like the feature is not very helpful, sometimes even confusing (see GitHub issue #21). The macro ISLEAP is moved to calcurse.h. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add a function to wait for any key pressLukas Fleischer2017-09-031-0/+1
| | | | | | | Introduce a new function keys_wait_for_any_key() and use it instead of wgetch() whenever the return value is discarded. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add support for UTF-8 key bindingsLukas Fleischer2017-08-301-1/+3
| | | | | | | | | | | | | | | | A new function keys_wgetch() reads full UTF-8 characters instead of single ASCII characters only. Key bindings for regular ASCII characters are stored in a hash map while the actions of keys with higher code points are stored in a linked list for space efficiency. The key serialization methods are updated to handle UTF-8 characters as well; extended UTF-8 characters (characters not in the ASCII range) are serialized by using the hexadecimal representation of the corresponding code points (e.g. "U+00E4"). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Rename keys_getch() to keys_get()Lukas Fleischer2017-08-301-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out UTF-8 code point decodingLukas Fleischer2017-08-301-0/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use nl_langinfo() for month and day namesLars Henriksen2017-08-281-3/+0
| | | | | | | | Use the locale setting to fetch the month names and abbreviated day names. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make heading in appointments panel configurableLars Henriksen2017-08-281-0/+4
| | | | | | | | Add a new configuration variable format.dayheading to set the format of the date displayed at the top of the event and appointment list. Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Extend strings API for formatted datesLukas Fleischer2017-08-281-0/+2
| | | | | | | | Add two new functions string_catftime(), resp. string_strftime(), which can be used to append, resp. print, a formatted date to a dynamic string. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2017-01-121-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Replace parse_datetime() constants by named flagsLukas Fleischer2016-10-101-0/+4
| | | | | | | Remove the magic constants used in the return value of parse_datetime() and use named flags instead. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Factor out parse_datetime()Lukas Fleischer2016-10-091-0/+1
| | | | | | | | Create a new function that takes a time stamp and updates the date or time components of that time stamp according to a given date/time string. Use that function for updating the start time of an item. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Fix out-of-bounds memory accessLukas Fleischer2016-09-281-0/+2
| | | | | | | Do not try to access freed day items. This also fixes unexpected selection changes after modifying appointments or events. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Do not assume that days always have 86400 secondsLukas Fleischer2016-03-271-0/+1
| | | | | | | | Make that date membership is computed correctly, even if a day has less than 86400 seconds (e.g. after changing clocks). Reported-by: Hakan Jerning <jerning@home.se> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support durations in recurrence ending datesLukas Fleischer2016-02-261-0/+2
| | | | | | | When spending the end date of recurring items, allow date duration specifiers such as "+5d" or "+3w2d". Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor UTF-8 choppingLukas Fleischer2016-02-261-0/+1
| | | | | | | Add a function that makes sure a string does not exceed a given display size. If the string is too long, dots ("...") are appended. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make automatic selection of appointments/events smarterLukas Fleischer2016-02-161-0/+3
| | | | | | | Keep item selection when an item is moved (e.g. by changing the start time or description). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support format strings when dumping imported itemsLukas Fleischer2016-02-111-3/+5
| | | | | | | | | | | | | | In commit 3eae7ce (Add --list-imported command line option, 2016-01-12), we added an option to print the hashes of imported items to stdout. Extend this command line option such that it dumps the items using the specified formatting strings. With the new behavior it is, for example, easier to check items for import errors. Also, rename the option from --list-imported to --dump-imported (it is not part of any official release yet so we do not need to care about backwards compatibility). Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Refactor grep modeLukas Fleischer2016-02-051-0/+2
| | | | | | | | | Split io_save_{apts,todo}() into functions that write raw data to a file and functions that write formatted items to stdout such that one can easily extend the grep mode for format string support in a follow-up commit. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Update copyright rangesLukas Fleischer2016-01-301-1/+1
| | | | Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Support sending notifications for all appointmentsLukas Fleischer2016-01-271-0/+4
| | | | | | | | | | In 45417bc (Add configuration option to notify all appointments, 2011-07-31), we added an option that allows for choosing whether the user receives notifications only for flagged or only for unflagged appointments. Convert this setting into a three-state option and allow the user to additionally enable notifications for *all* appointments. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Make automatic selection of todo items smarterLukas Fleischer2016-01-181-1/+1
| | | | | | | | * Automatically focus new todo items after adding them to the list. * Keep selection when an item is moved (e.g. by changing its priority). * Focus the next item in the list when an item is removed. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Improve ordering of todo itemsLukas Fleischer2016-01-181-0/+1
| | | | | | | | * Show uncompleted items first. * Order uncompleted and completed items by priority. * Order items with the same priority alphabetically. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Save active view on the todo panelLukas Fleischer2016-01-181-0/+2
| | | | | | | | Add a configuration option appearance.todoview and use it to automatically save the currently active todo panel view and restore it when restarting calcurse. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Use a separate field for the completed statusLukas Fleischer2016-01-181-1/+2
| | | | | | | Add a new field that indicates whether a todo item is completed or not instead of encoding completed todo items by negative priorities. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add a "hide completed" view to the todo panelLukas Fleischer2016-01-181-2/+11
| | | | | | Add a second view to the todo panel that hides all completed items. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Export item UIDs upon requestLukas Fleischer2016-01-151-2/+2
| | | | | | | Add a new --export-uid command line option that adds each item's hash to the UID property when exporting. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add --list-imported command line optionLukas Fleischer2016-01-131-2/+2
| | | | | | | When this option is used together with -i/--import, the object identifiers of imported objects are printed to stdout. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
* Add command line option to suppress dialogsLukas Fleischer2016-01-131-0/+2
| | | | | | | Implement a -q/--quiet command line option to disable system dialogs temporarily. Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
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