diff options
Diffstat (limited to 'src/libui_sdl/libui/unix/datetimepicker.c')
| -rw-r--r-- | src/libui_sdl/libui/unix/datetimepicker.c | 599 |
1 files changed, 599 insertions, 0 deletions
diff --git a/src/libui_sdl/libui/unix/datetimepicker.c b/src/libui_sdl/libui/unix/datetimepicker.c new file mode 100644 index 0000000..19689a2 --- /dev/null +++ b/src/libui_sdl/libui/unix/datetimepicker.c @@ -0,0 +1,599 @@ +// 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 dateTimePickerWidgetType (dateTimePickerWidget_get_type()) +#define dateTimePickerWidget(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), dateTimePickerWidgetType, dateTimePickerWidget)) +#define isDateTimePickerWidget(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), dateTimePickerWidgetType)) +#define dateTimePickerWidgetClass(class) (G_TYPE_CHECK_CLASS_CAST((class), dateTimePickerWidgetType, dateTimePickerWidgetClass)) +#define isDateTimePickerWidgetClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), dateTimePickerWidget)) +#define getDateTimePickerWidgetClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), dateTimePickerWidgetType, dateTimePickerWidgetClass)) + +typedef struct dateTimePickerWidget dateTimePickerWidget; +typedef struct dateTimePickerWidgetClass dateTimePickerWidgetClass; + +struct dateTimePickerWidget { + 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 hoursBlock; + gulong minutesBlock; + gulong secondsBlock; + gulong ampmBlock; + + GdkDevice *keyboard; + GdkDevice *mouse; +}; + +struct dateTimePickerWidgetClass { + GtkToggleButtonClass parent_class; +}; + +G_DEFINE_TYPE(dateTimePickerWidget, dateTimePickerWidget, 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(dateTimePickerWidget *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(dateTimePickerWidget *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 void dateTimeChanged(dateTimePickerWidget *d) +{ + setLabel(d); + // TODO fire event here +} + +// we don't want ::toggled to be sent again +static void setActive(dateTimePickerWidget *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(dateTimePickerWidget *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(dateTimePickerWidget *d) +{ + endGrab(d); + gtk_widget_hide(d->window); + setActive(d, FALSE); +} + +// this consolidates a good chunk of what GtkComboBox does +static gboolean startGrab(dateTimePickerWidget *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(dateTimePickerWidget *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(dateTimePickerWidget *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) +{ + dateTimePickerWidget *d = dateTimePickerWidget(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) +{ + dateTimePickerWidget *d = dateTimePickerWidget(data); + + hidePopup(d); + return TRUE; // this is what GtkComboBox does +} + +static gboolean buttonReleased(GtkWidget *w, GdkEventButton *e, gpointer data) +{ + dateTimePickerWidget *d = dateTimePickerWidget(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) +{ + dateTimePickerWidget *d = dateTimePickerWidget(data); + + dateTimeChanged(d); +} + +static GtkWidget *newSpinbox(dateTimePickerWidget *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) +{ + dateTimePickerWidget *d = dateTimePickerWidget(data); + + dateTimeChanged(d); +} + +static void setDateOnly(dateTimePickerWidget *d) +{ + d->hasTime = FALSE; + gtk_container_remove(GTK_CONTAINER(d->box), d->timebox); +} + +static void setTimeOnly(dateTimePickerWidget *d) +{ + d->hasDate = FALSE; + gtk_container_remove(GTK_CONTAINER(d->box), d->calendar); +} + +static void dateTimePickerWidget_init(dateTimePickerWidget *d) +{ + GDateTime *dt; + gint year, month, day; + gint hour; + gulong calendarBlock; + + 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(); + 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 + // notice how we block signals from firing + dt = g_date_time_new_now_local(); + g_date_time_get_ymd(dt, &year, &month, &day); + month--; // GDateTime/GtkCalendar differences + g_signal_handler_block(d->calendar, 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, calendarBlock); + 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 dateTimePickerWidget_dispose(GObject *obj) +{ + dateTimePickerWidget *d = dateTimePickerWidget(obj); + + if (d->window != NULL) { + gtk_widget_destroy(d->window); + d->window = NULL; + } + G_OBJECT_CLASS(dateTimePickerWidget_parent_class)->dispose(obj); +} + +static void dateTimePickerWidget_finalize(GObject *obj) +{ + G_OBJECT_CLASS(dateTimePickerWidget_parent_class)->finalize(obj); +} + +static void dateTimePickerWidget_class_init(dateTimePickerWidgetClass *class) +{ + G_OBJECT_CLASS(class)->dispose = dateTimePickerWidget_dispose; + G_OBJECT_CLASS(class)->finalize = dateTimePickerWidget_finalize; +} + +static GtkWidget *newDTP(void) +{ + GtkWidget *w; + + w = GTK_WIDGET(g_object_new(dateTimePickerWidgetType, "label", "", NULL)); + setLabel(dateTimePickerWidget(w)); + return w; +} + +static GtkWidget *newDP(void) +{ + GtkWidget *w; + + w = GTK_WIDGET(g_object_new(dateTimePickerWidgetType, "label", "", NULL)); + setDateOnly(dateTimePickerWidget(w)); + setLabel(dateTimePickerWidget(w)); + return w; +} + +static GtkWidget *newTP(void) +{ + GtkWidget *w; + + w = GTK_WIDGET(g_object_new(dateTimePickerWidgetType, "label", "", NULL)); + setTimeOnly(dateTimePickerWidget(w)); + setLabel(dateTimePickerWidget(w)); + return w; +} + +struct uiDateTimePicker { + uiUnixControl c; + GtkWidget *widget; + dateTimePickerWidget *d; +}; + +uiUnixControlAllDefaults(uiDateTimePicker) + +uiDateTimePicker *finishNewDateTimePicker(GtkWidget *(*fn)(void)) +{ + uiDateTimePicker *d; + + uiUnixNewControl(uiDateTimePicker, d); + + d->widget = (*fn)(); + d->d = dateTimePickerWidget(d->widget); + + return d; +} + +uiDateTimePicker *uiNewDateTimePicker(void) +{ + return finishNewDateTimePicker(newDTP); +} + +uiDateTimePicker *uiNewDatePicker(void) +{ + return finishNewDateTimePicker(newDP); +} + +uiDateTimePicker *uiNewTimePicker(void) +{ + return finishNewDateTimePicker(newTP); +} |