week-header: created the basic skeleton of the week-header
Created the .h, .c and .ui file of week header. Also made changes in the Makefile.am for it to get built.
This commit is contained in:
pandusonu2
committed by
Georges Basile Stavracas Neto
Georges Basile Stavracas Neto
parent
3656c781da
commit
69cade3d77
@@ -0,0 +1,293 @@
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/* gcal-week-header.c
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*
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* Copyright (C) 2016 Vamsi Krishna Gollapudi <pandu.sonu@yahoo.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gcal-week-header.h"
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#include "gcal-week-view.h"
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#include "gcal-utils.h"
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#include "gcal-view.h"
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#include "gcal-event-widget.h"
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#include <glib/gi18n.h>
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#include <string.h>
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#include <math.h>
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#define ALL_DAY_CELLS_HEIGHT 40
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struct _GcalWeekHeader
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{
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GtkScrolledWindow parent;
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GtkWidget *grid;
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GcalManager *manager;
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gint first_weekday;
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gboolean use_24h_format;
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icaltimetype *current_date;
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};
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static void gcal_week_header_finalize (GObject *object);
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static void gcal_week_header_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *psec);
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static void gcal_week_header_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static gboolean gcal_week_header_draw (GcalWeekHeader *self,
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cairo_t *cr,
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GtkWidget *widget);
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G_DEFINE_TYPE (GcalWeekHeader, gcal_week_header, GTK_TYPE_SCROLLED_WINDOW);
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static void
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gcal_week_header_finalize (GObject *object)
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{
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GcalWeekHeader *self = GCAL_WEEK_HEADER (object);
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g_clear_pointer (&self->current_date, g_free);
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}
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static void
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gcal_week_header_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GcalWeekHeader *self = GCAL_WEEK_HEADER (object);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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gcal_week_header_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GcalWeekHeader *self = GCAL_WEEK_HEADER (object);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static gboolean
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gcal_week_header_draw (GcalWeekHeader *self,
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cairo_t *cr,
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GtkWidget *widget)
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{
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GtkStyleContext *context;
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GtkStateFlags state;
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GdkRGBA color;
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GtkAllocation *alloc;
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GtkBorder *padding;
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PangoLayout *layout;
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PangoFontDescription *bold_font;
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gint i;
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gint pos_i;
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gint start_grid_y;
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gint font_height;
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gdouble sidebar_width;
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gdouble cell_width;
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icaltimetype *start_of_week;
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gint current_cell;
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cairo_pattern_t *pattern;
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cairo_save(cr);
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start_grid_y = gcal_week_view_get_start_grid_y (widget);
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/* Fonts and colour selection */
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context = gtk_widget_get_style_context (widget);
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state = gtk_widget_get_state_flags (widget);
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gtk_style_context_get_padding (context, state, padding);
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gtk_widget_get_allocation (widget, alloc);
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pattern = cairo_pattern_create_linear (0, start_grid_y - 18,
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0, start_grid_y + 6);
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cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, 0.6);
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cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_rectangle (cr, 0, start_grid_y, alloc->width, 6);
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cairo_fill (cr);
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gtk_style_context_get_color (context, state, &color);
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gdk_cairo_set_source_rgba (cr, &color);
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layout = pango_cairo_create_layout (cr);
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gtk_style_context_get (context, state, "font", &bold_font, NULL);
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pango_font_description_set_weight (bold_font, PANGO_WEIGHT_SEMIBOLD);
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pango_layout_set_font_description (layout, bold_font);
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start_of_week = gcal_week_view_get_initial_date (GCAL_VIEW (widget));
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current_cell = icaltime_day_of_week (*(self->current_date)) - 1;
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current_cell = (7 + current_cell - self->first_weekday) % 7;
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sidebar_width = gcal_week_view_get_sidebar_width (widget);
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cell_width = (alloc->width - sidebar_width) / 7;
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pango_layout_get_pixel_size (layout, NULL, &font_height);
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gtk_style_context_save (context);
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gtk_style_context_add_class (context, "current");
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gtk_render_background (context, cr,
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cell_width * current_cell + sidebar_width,
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font_height + padding->bottom,
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cell_width,
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ALL_DAY_CELLS_HEIGHT);
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gtk_style_context_remove_class (context, "current");
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gtk_style_context_restore (context);
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for (i = 0; i < 7; i++)
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{
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gchar *weekday_header;
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gchar *weekday_abv;
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gint n_day;
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n_day = start_of_week->day + i;
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if (n_day > icaltime_days_in_month (start_of_week->month,
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start_of_week->year))
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{
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n_day = n_day - icaltime_days_in_month (start_of_week->month,
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start_of_week->year);
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}
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/* Draw the week days with dates */
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weekday_abv = gcal_get_weekday ((i + self->first_weekday) % 7);
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weekday_header = g_strdup_printf ("%s %d", weekday_abv, n_day);
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pango_layout_set_text (layout, weekday_header, -1);
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cairo_move_to (cr,
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padding->left + cell_width * i + sidebar_width,
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0.0);
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pango_cairo_show_layout (cr, layout);
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/* Draws the lines after each day of the week */
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cairo_save (cr);
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cairo_move_to (cr,
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cell_width * i + sidebar_width + 0.3,
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font_height + padding->bottom);
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cairo_rel_line_to (cr, 0.0, ALL_DAY_CELLS_HEIGHT);
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cairo_stroke (cr);
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cairo_restore (cr);
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g_free (weekday_header);
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}
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gtk_style_context_get_color (context,
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state | GTK_STATE_FLAG_INSENSITIVE,
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&color);
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gdk_cairo_set_source_rgba (cr, &color);
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pos_i = font_height + padding->bottom;
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cairo_move_to (cr, sidebar_width, pos_i + 0.3);
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cairo_rel_line_to (cr, alloc->width - sidebar_width, 0);
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cairo_stroke (cr);
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cairo_restore (cr);
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g_free (start_of_week);
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pango_font_description_free (bold_font);
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g_object_unref (layout);
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return FALSE;
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}
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static void
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gcal_week_header_class_init (GcalWeekHeaderClass *kclass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (kclass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (kclass);
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object_class->finalize = gcal_week_header_finalize;
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object_class->get_property = gcal_week_header_get_property;
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object_class->set_property = gcal_week_header_set_property;
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gtk_widget_class_set_template_from_resource (widget_class, "/org/gnome/calendar/week-header.ui");
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gtk_widget_class_bind_template_child (widget_class, GcalWeekHeader, grid);
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gtk_widget_class_bind_template_callback (widget_class, gcal_week_header_draw);
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gtk_widget_class_set_css_name (widget_class, "calendar-view");
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}
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static void
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gcal_week_header_init (GcalWeekHeader *self)
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{
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gtk_widget_init_template (GTK_WIDGET (self));
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}
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/* Public API */
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void
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gcal_week_header_set_manager (GcalWeekHeader *self,
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GcalManager *manager)
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{
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g_return_if_fail (GCAL_IS_WEEK_HEADER (self));
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self->manager = manager;
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}
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void
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gcal_week_header_set_first_weekday (GcalWeekHeader *self,
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gint nr_day)
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{
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g_return_if_fail (GCAL_IS_WEEK_HEADER (self));
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self->first_weekday = nr_day;
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}
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void
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gcal_week_header_set_use_24h_format (GcalWeekHeader *self,
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gboolean use_24h_format)
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{
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g_return_if_fail (GCAL_IS_WEEK_HEADER (self));
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self->use_24h_format = use_24h_format;
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}
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void
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gcal_week_header_set_current_date (GcalWeekHeader *self,
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icaltimetype *current_date)
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{
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g_return_if_fail (GCAL_IS_WEEK_HEADER (self));
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self->current_date = current_date;
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gtk_widget_queue_draw (GTK_WIDGET (self));
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}
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