libui/zOLD_unix/datetimepicker.c

676 lines
19 KiB
C

// 4 september 2015
#include "uipriv_unix.h"
// LONGTERM imitate gnome-calendar's day/month/year entries above the calendar
// LONGTERM allow entering a 24-hour hour in the hour spinbutton and adjust accordingly
#define uiprivDateTimePickerWidgetType (uiprivDateTimePickerWidget_get_type())
#define uiprivDateTimePickerWidget(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), uiprivDateTimePickerWidgetType, uiprivDateTimePickerWidget))
#define isDateTimePickerWidget(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), uiprivDateTimePickerWidgetType))
#define uiprivDateTimePickerWidgetClass(class) (G_TYPE_CHECK_CLASS_CAST((class), uiprivDateTimePickerWidgetType, uiprivDateTimePickerWidgetClass))
#define isDateTimePickerWidgetClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), uiprivDateTimePickerWidget))
#define getDateTimePickerWidgetClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), uiprivDateTimePickerWidgetType, uiprivDateTimePickerWidgetClass))
typedef struct uiprivDateTimePickerWidget uiprivDateTimePickerWidget;
typedef struct uiprivDateTimePickerWidgetClass uiprivDateTimePickerWidgetClass;
struct uiprivDateTimePickerWidget {
GtkToggleButton parent_instance;
gulong toggledSignal;
gboolean hasTime;
gboolean hasDate;
GtkWidget *window;
GtkWidget *box;
GtkWidget *calendar;
GtkWidget *timebox;
GtkWidget *hours;
GtkWidget *minutes;
GtkWidget *seconds;
GtkWidget *ampm;
gulong calendarBlock;
gulong hoursBlock;
gulong minutesBlock;
gulong secondsBlock;
gulong ampmBlock;
GdkDevice *keyboard;
GdkDevice *mouse;
};
struct uiprivDateTimePickerWidgetClass {
GtkToggleButtonClass parent_class;
};
G_DEFINE_TYPE(uiprivDateTimePickerWidget, uiprivDateTimePickerWidget, GTK_TYPE_TOGGLE_BUTTON)
static int realSpinValue(GtkSpinButton *spinButton)
{
GtkAdjustment *adj;
adj = gtk_spin_button_get_adjustment(spinButton);
return (int) gtk_adjustment_get_value(adj);
}
static void setRealSpinValue(GtkSpinButton *spinButton, int value, gulong block)
{
GtkAdjustment *adj;
g_signal_handler_block(spinButton, block);
adj = gtk_spin_button_get_adjustment(spinButton);
gtk_adjustment_set_value(adj, value);
g_signal_handler_unblock(spinButton, block);
}
static GDateTime *selected(uiprivDateTimePickerWidget *d)
{
// choose a day for which all times are likely to be valid for the default date in case we're only dealing with time
guint year = 1970, month = 1, day = 1;
guint hour = 0, minute = 0, second = 0;
if (d->hasDate) {
gtk_calendar_get_date(GTK_CALENDAR(d->calendar), &year, &month, &day);
month++; // GtkCalendar/GDateTime differences
}
if (d->hasTime) {
hour = realSpinValue(GTK_SPIN_BUTTON(d->hours));
if (realSpinValue(GTK_SPIN_BUTTON(d->ampm)) != 0)
hour += 12;
minute = realSpinValue(GTK_SPIN_BUTTON(d->minutes));
second = realSpinValue(GTK_SPIN_BUTTON(d->seconds));
}
return g_date_time_new_local(year, month, day, hour, minute, second);
}
static void setLabel(uiprivDateTimePickerWidget *d)
{
GDateTime *dt;
char *fmt;
char *msg;
gboolean free;
dt = selected(d);
free = FALSE;
if (d->hasDate && d->hasTime) {
// don't use D_T_FMT; that's too verbose
fmt = g_strdup_printf("%s %s", nl_langinfo(D_FMT), nl_langinfo(T_FMT));
free = TRUE;
} else if (d->hasDate)
fmt = nl_langinfo(D_FMT);
else
fmt = nl_langinfo(T_FMT);
msg = g_date_time_format(dt, fmt);
gtk_button_set_label(GTK_BUTTON(d), msg);
g_free(msg);
if (free)
g_free(fmt);
g_date_time_unref(dt);
}
static int changedSignal;
static void dateTimeChanged(uiprivDateTimePickerWidget *d)
{
g_signal_emit(d, changedSignal, 0);
setLabel(d);
// TODO fire event here instead?
}
// we don't want ::toggled to be sent again
static void setActive(uiprivDateTimePickerWidget *d, gboolean active)
{
g_signal_handler_block(d, d->toggledSignal);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(d), active);
g_signal_handler_unblock(d, d->toggledSignal);
}
// like startGrab() below, a lot of this is in the order that GtkComboBox does it
static void endGrab(uiprivDateTimePickerWidget *d)
{
if (d->keyboard != NULL)
gdk_device_ungrab(d->keyboard, GDK_CURRENT_TIME);
gdk_device_ungrab(d->mouse, GDK_CURRENT_TIME);
gtk_device_grab_remove(d->window, d->mouse);
d->keyboard = NULL;
d->mouse = NULL;
}
static void hidePopup(uiprivDateTimePickerWidget *d)
{
endGrab(d);
gtk_widget_hide(d->window);
setActive(d, FALSE);
}
// this consolidates a good chunk of what GtkComboBox does
static gboolean startGrab(uiprivDateTimePickerWidget *d)
{
GdkDevice *dev;
guint32 time;
GdkWindow *window;
GdkDevice *keyboard, *mouse;
dev = gtk_get_current_event_device();
if (dev == NULL) {
// this is what GtkComboBox does
// since no device was set, just use the first available "master device"
GdkDisplay *disp;
GdkDeviceManager *dm;
GList *list;
disp = gtk_widget_get_display(GTK_WIDGET(d));
dm = gdk_display_get_device_manager(disp);
list = gdk_device_manager_list_devices(dm, GDK_DEVICE_TYPE_MASTER);
dev = (GdkDevice *) (list->data);
g_list_free(list);
}
time = gtk_get_current_event_time();
keyboard = dev;
mouse = gdk_device_get_associated_device(dev);
if (gdk_device_get_source(dev) != GDK_SOURCE_KEYBOARD) {
dev = mouse;
mouse = keyboard;
keyboard = dev;
}
window = gtk_widget_get_window(d->window);
if (keyboard != NULL)
if (gdk_device_grab(keyboard, window,
GDK_OWNERSHIP_WINDOW, TRUE,
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
NULL, time) != GDK_GRAB_SUCCESS)
return FALSE;
if (mouse != NULL)
if (gdk_device_grab(mouse, window,
GDK_OWNERSHIP_WINDOW, TRUE,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK,
NULL, time) != GDK_GRAB_SUCCESS) {
if (keyboard != NULL)
gdk_device_ungrab(keyboard, time);
return FALSE;
}
gtk_device_grab_add(d->window, mouse, TRUE);
d->keyboard = keyboard;
d->mouse = mouse;
return TRUE;
}
// based on gtk_combo_box_list_position() in the GTK+ source code
static void allocationToScreen(uiprivDateTimePickerWidget *d, gint *x, gint *y)
{
GdkWindow *window;
GtkAllocation a;
GtkRequisition aWin;
GdkScreen *screen;
GdkRectangle workarea;
int otherY;
gtk_widget_get_allocation(GTK_WIDGET(d), &a);
gtk_widget_get_preferred_size(d->window, &aWin, NULL);
*x = 0;
*y = 0;
if (!gtk_widget_get_has_window(GTK_WIDGET(d))) {
*x = a.x;
*y = a.y;
}
window = gtk_widget_get_window(GTK_WIDGET(d));
gdk_window_get_root_coords(window, *x, *y, x, y);
if (gtk_widget_get_direction(GTK_WIDGET(d)) == GTK_TEXT_DIR_RTL)
*x += a.width - aWin.width;
// now adjust to prevent the box from going offscreen
screen = gtk_widget_get_screen(GTK_WIDGET(d));
gdk_screen_get_monitor_workarea(screen,
gdk_screen_get_monitor_at_window(screen, window),
&workarea);
if (*x < workarea.x) // too far to the left?
*x = workarea.x;
else if (*x + aWin.width > (workarea.x + workarea.width)) // too far to the right?
*x = (workarea.x + workarea.width) - aWin.width;
// this isn't the same algorithm used by GtkComboBox
// first, get our two choices; *y for down and otherY for up
otherY = *y - aWin.height;
*y += a.height;
// and use otherY if we're too low
if (*y + aWin.height >= workarea.y + workarea.height)
*y = otherY;
}
static void showPopup(uiprivDateTimePickerWidget *d)
{
GtkWidget *toplevel;
gint x, y;
// GtkComboBox does it
toplevel = gtk_widget_get_toplevel(GTK_WIDGET(d));
if (GTK_IS_WINDOW(toplevel))
gtk_window_group_add_window(gtk_window_get_group(GTK_WINDOW(toplevel)), GTK_WINDOW(d->window));
allocationToScreen(d, &x, &y);
gtk_window_move(GTK_WINDOW(d->window), x, y);
gtk_widget_show(d->window);
setActive(d, TRUE);
if (!startGrab(d))
hidePopup(d);
}
static void onToggled(GtkToggleButton *b, gpointer data)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(b);
if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(d)))
showPopup(d);
else
hidePopup(d);
}
static gboolean grabBroken(GtkWidget *w, GdkEventGrabBroken *e, gpointer data)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(data);
hidePopup(d);
return TRUE; // this is what GtkComboBox does
}
static gboolean buttonReleased(GtkWidget *w, GdkEventButton *e, gpointer data)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(data);
int winx, winy;
GtkAllocation wina;
gboolean in;
gtk_widget_get_allocation(d->window, &wina);
winx = 0;
winy = 0;
if (!gtk_widget_get_has_window(d->window)) {
winx = wina.x;
winy = wina.y;
}
gdk_window_get_root_coords(gtk_widget_get_window(d->window), winx, winy, &winx, &winy);
in = TRUE;
if (e->x_root < winx)
in = FALSE;
if (e->x_root >= (winx + wina.width))
in = FALSE;
if (e->y_root < winy)
in = FALSE;
if (e->y_root >= (winy + wina.height))
in = FALSE;
if (!in)
hidePopup(d);
return TRUE; // this is what GtkComboBox does
}
static gint hoursSpinboxInput(GtkSpinButton *sb, gpointer ptr, gpointer data)
{
double *out = (double *) ptr;
const gchar *text;
int value;
text = gtk_entry_get_text(GTK_ENTRY(sb));
value = (int) g_strtod(text, NULL);
if (value < 0 || value > 12)
return GTK_INPUT_ERROR;
if (value == 12) // 12 to the user is 0 internally
value = 0;
*out = (double) value;
return TRUE;
}
static gboolean hoursSpinboxOutput(GtkSpinButton *sb, gpointer data)
{
gchar *text;
int value;
value = realSpinValue(sb);
if (value == 0) // 0 internally is 12 to the user
value = 12;
text = g_strdup_printf("%d", value);
gtk_entry_set_text(GTK_ENTRY(sb), text);
g_free(text);
return TRUE;
}
static gboolean zeroPadSpinbox(GtkSpinButton *sb, gpointer data)
{
gchar *text;
int value;
value = realSpinValue(sb);
text = g_strdup_printf("%02d", value);
gtk_entry_set_text(GTK_ENTRY(sb), text);
g_free(text);
return TRUE;
}
// this is really hacky but we can't use GtkCombobox here :(
static gint ampmSpinboxInput(GtkSpinButton *sb, gpointer ptr, gpointer data)
{
double *out = (double *) ptr;
const gchar *text;
char firstAM, firstPM;
text = gtk_entry_get_text(GTK_ENTRY(sb));
// LONGTERM don't use ASCII here for case insensitivity
firstAM = g_ascii_tolower(nl_langinfo(AM_STR)[0]);
firstPM = g_ascii_tolower(nl_langinfo(PM_STR)[0]);
for (; *text != '\0'; text++)
if (g_ascii_tolower(*text) == firstAM) {
*out = 0;
return TRUE;
} else if (g_ascii_tolower(*text) == firstPM) {
*out = 1;
return TRUE;
}
return GTK_INPUT_ERROR;
}
static gboolean ampmSpinboxOutput(GtkSpinButton *sb, gpointer data)
{
int value;
value = gtk_spin_button_get_value_as_int(sb);
if (value == 0)
gtk_entry_set_text(GTK_ENTRY(sb), nl_langinfo(AM_STR));
else
gtk_entry_set_text(GTK_ENTRY(sb), nl_langinfo(PM_STR));
return TRUE;
}
static void spinboxChanged(GtkSpinButton *sb, gpointer data)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(data);
dateTimeChanged(d);
}
static GtkWidget *newSpinbox(uiprivDateTimePickerWidget *d, int min, int max, gint (*input)(GtkSpinButton *, gpointer, gpointer), gboolean (*output)(GtkSpinButton *, gpointer), gulong *block)
{
GtkWidget *sb;
sb = gtk_spin_button_new_with_range(min, max, 1);
gtk_spin_button_set_digits(GTK_SPIN_BUTTON(sb), 0);
gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(sb), TRUE);
gtk_orientable_set_orientation(GTK_ORIENTABLE(sb), GTK_ORIENTATION_VERTICAL);
*block = g_signal_connect(sb, "value-changed", G_CALLBACK(spinboxChanged), d);
if (input != NULL)
g_signal_connect(sb, "input", G_CALLBACK(input), NULL);
if (output != NULL)
g_signal_connect(sb, "output", G_CALLBACK(output), NULL);
return sb;
}
static void dateChanged(GtkCalendar *c, gpointer data)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(data);
dateTimeChanged(d);
}
static void setDateOnly(uiprivDateTimePickerWidget *d)
{
d->hasTime = FALSE;
gtk_container_remove(GTK_CONTAINER(d->box), d->timebox);
}
static void setTimeOnly(uiprivDateTimePickerWidget *d)
{
d->hasDate = FALSE;
gtk_container_remove(GTK_CONTAINER(d->box), d->calendar);
}
static void uiprivDateTimePickerWidget_setTime(uiprivDateTimePickerWidget *d, GDateTime *dt)
{
gint year, month, day;
gint hour;
// notice how we block signals from firing
if (d->hasDate) {
g_date_time_get_ymd(dt, &year, &month, &day);
month--; // GDateTime/GtkCalendar differences
g_signal_handler_block(d->calendar, d->calendarBlock);
gtk_calendar_select_month(GTK_CALENDAR(d->calendar), month, year);
gtk_calendar_select_day(GTK_CALENDAR(d->calendar), day);
g_signal_handler_unblock(d->calendar, d->calendarBlock);
}
if (d->hasTime) {
hour = g_date_time_get_hour(dt);
if (hour >= 12) {
hour -= 12;
setRealSpinValue(GTK_SPIN_BUTTON(d->ampm), 1, d->ampmBlock);
}
setRealSpinValue(GTK_SPIN_BUTTON(d->hours), hour, d->hoursBlock);
setRealSpinValue(GTK_SPIN_BUTTON(d->minutes), g_date_time_get_minute(dt), d->minutesBlock);
setRealSpinValue(GTK_SPIN_BUTTON(d->seconds), g_date_time_get_seconds(dt), d->secondsBlock);
}
g_date_time_unref(dt);
}
static void uiprivDateTimePickerWidget_init(uiprivDateTimePickerWidget *d)
{
d->window = gtk_window_new(GTK_WINDOW_POPUP);
gtk_window_set_resizable(GTK_WINDOW(d->window), FALSE);
gtk_window_set_attached_to(GTK_WINDOW(d->window), GTK_WIDGET(d));
gtk_window_set_decorated(GTK_WINDOW(d->window), FALSE);
gtk_window_set_deletable(GTK_WINDOW(d->window), FALSE);
gtk_window_set_type_hint(GTK_WINDOW(d->window), GDK_WINDOW_TYPE_HINT_COMBO);
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(d->window), TRUE);
gtk_window_set_skip_pager_hint(GTK_WINDOW(d->window), TRUE);
gtk_window_set_has_resize_grip(GTK_WINDOW(d->window), FALSE);
gtk_container_set_border_width(GTK_CONTAINER(d->window), 12);
// and make it stand out a bit
gtk_style_context_add_class(gtk_widget_get_style_context(d->window), "frame");
d->box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add(GTK_CONTAINER(d->window), d->box);
d->calendar = gtk_calendar_new();
d->calendarBlock = g_signal_connect(d->calendar, "day-selected", G_CALLBACK(dateChanged), d);
gtk_container_add(GTK_CONTAINER(d->box), d->calendar);
d->timebox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 6);
gtk_widget_set_valign(d->timebox, GTK_ALIGN_CENTER);
gtk_container_add(GTK_CONTAINER(d->box), d->timebox);
d->hours = newSpinbox(d, 0, 11, hoursSpinboxInput, hoursSpinboxOutput, &(d->hoursBlock));
gtk_container_add(GTK_CONTAINER(d->timebox), d->hours);
gtk_container_add(GTK_CONTAINER(d->timebox),
gtk_label_new(":"));
d->minutes = newSpinbox(d, 0, 59, NULL, zeroPadSpinbox, &(d->minutesBlock));
gtk_container_add(GTK_CONTAINER(d->timebox), d->minutes);
gtk_container_add(GTK_CONTAINER(d->timebox),
gtk_label_new(":"));
d->seconds = newSpinbox(d, 0, 59, NULL, zeroPadSpinbox, &(d->secondsBlock));
gtk_container_add(GTK_CONTAINER(d->timebox), d->seconds);
// LONGTERM this should be the case, but that interferes with grabs
// switch to it when we can drop GTK+ 3.10 and use popovers
#if 0
d->ampm = gtk_combo_box_text_new();
gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(d->ampm), NULL, "AM");
gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(d->ampm), NULL, "PM");
#endif
d->ampm = newSpinbox(d, 0, 1, ampmSpinboxInput, ampmSpinboxOutput, &(d->ampmBlock));
gtk_spin_button_set_numeric(GTK_SPIN_BUTTON(d->ampm), FALSE);
gtk_widget_set_valign(d->ampm, GTK_ALIGN_CENTER);
gtk_container_add(GTK_CONTAINER(d->timebox), d->ampm);
gtk_widget_show_all(d->box);
g_signal_connect(d->window, "grab-broken-event", G_CALLBACK(grabBroken), d);
g_signal_connect(d->window, "button-release-event", G_CALLBACK(buttonReleased), d);
d->toggledSignal = g_signal_connect(d, "toggled", G_CALLBACK(onToggled), NULL);
d->keyboard = NULL;
d->mouse = NULL;
d->hasTime = TRUE;
d->hasDate = TRUE;
// set the current date/time
uiprivDateTimePickerWidget_setTime(d, g_date_time_new_now_local());
}
static void uiprivDateTimePickerWidget_dispose(GObject *obj)
{
uiprivDateTimePickerWidget *d = uiprivDateTimePickerWidget(obj);
if (d->window != NULL) {
gtk_widget_destroy(d->window);
d->window = NULL;
}
G_OBJECT_CLASS(uiprivDateTimePickerWidget_parent_class)->dispose(obj);
}
static void uiprivDateTimePickerWidget_finalize(GObject *obj)
{
G_OBJECT_CLASS(uiprivDateTimePickerWidget_parent_class)->finalize(obj);
}
static void uiprivDateTimePickerWidget_class_init(uiprivDateTimePickerWidgetClass *class)
{
G_OBJECT_CLASS(class)->dispose = uiprivDateTimePickerWidget_dispose;
G_OBJECT_CLASS(class)->finalize = uiprivDateTimePickerWidget_finalize;
changedSignal = g_signal_new("changed",
G_TYPE_FROM_CLASS(class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
0);
}
struct uiDateTimePicker {
uiUnixControl c;
GtkWidget *widget;
uiprivDateTimePickerWidget *d;
void (*onChanged)(uiDateTimePicker *, void *);
void *onChangedData;
gulong setBlock;
};
uiUnixControlAllDefaults(uiDateTimePicker)
static void defaultOnChanged(uiDateTimePicker *d, void *data)
{
// do nothing
}
void uiDateTimePickerTime(uiDateTimePicker *d, struct tm *time)
{
time_t t;
struct tm tmbuf;
GDateTime *dt;
dt = selected(d->d);
t = g_date_time_to_unix(dt);
g_date_time_unref(dt);
// Copy time to minimize a race condition
// time.h functions use global non-thread-safe data
tmbuf = *localtime(&t);
memcpy(time, &tmbuf, sizeof (struct tm));
}
void uiDateTimePickerSetTime(uiDateTimePicker *d, const struct tm *time)
{
time_t t;
struct tm tmbuf;
// TODO find a better way to avoid this; possibly by removing the signal entirely, or the call to dateTimeChanged() (most likely both)
g_signal_handler_block(d->d, d->setBlock);
// Copy time because mktime() modifies its argument
memcpy(&tmbuf, time, sizeof (struct tm));
t = mktime(&tmbuf);
uiprivDateTimePickerWidget_setTime(d->d, g_date_time_new_from_unix_local(t));
dateTimeChanged(d->d);
g_signal_handler_unblock(d->d, d->setBlock);
}
void uiDateTimePickerOnChanged(uiDateTimePicker *d, void (*f)(uiDateTimePicker *, void *), void *data)
{
d->onChanged = f;
d->onChangedData = data;
}
static void onChanged(uiprivDateTimePickerWidget *d, gpointer data)
{
uiDateTimePicker *c;
c = uiDateTimePicker(data);
(*(c->onChanged))(c, c->onChangedData);
}
static GtkWidget *newDTP(void)
{
GtkWidget *w;
w = GTK_WIDGET(g_object_new(uiprivDateTimePickerWidgetType, "label", "", NULL));
setLabel(uiprivDateTimePickerWidget(w));
return w;
}
static GtkWidget *newDP(void)
{
GtkWidget *w;
w = GTK_WIDGET(g_object_new(uiprivDateTimePickerWidgetType, "label", "", NULL));
setDateOnly(uiprivDateTimePickerWidget(w));
setLabel(uiprivDateTimePickerWidget(w));
return w;
}
static GtkWidget *newTP(void)
{
GtkWidget *w;
w = GTK_WIDGET(g_object_new(uiprivDateTimePickerWidgetType, "label", "", NULL));
setTimeOnly(uiprivDateTimePickerWidget(w));
setLabel(uiprivDateTimePickerWidget(w));
return w;
}
uiDateTimePicker *finishNewDateTimePicker(GtkWidget *(*fn)(void))
{
uiDateTimePicker *d;
uiUnixNewControl(uiDateTimePicker, d);
d->widget = (*fn)();
d->d = uiprivDateTimePickerWidget(d->widget);
d->setBlock = g_signal_connect(d->widget, "changed", G_CALLBACK(onChanged), d);
uiDateTimePickerOnChanged(d, defaultOnChanged, NULL);
return d;
}
uiDateTimePicker *uiNewDateTimePicker(void)
{
return finishNewDateTimePicker(newDTP);
}
uiDateTimePicker *uiNewDatePicker(void)
{
return finishNewDateTimePicker(newDP);
}
uiDateTimePicker *uiNewTimePicker(void)
{
return finishNewDateTimePicker(newTP);
}