Add AgHeaderBar class

It extends GtkHeaderBar, adding Astrognome specific buttons.

src/Makefile.am

@@ -1,7 +1,7 @@
 RESOURCE_DIR = $(srcdir)/resources
 resource_files = $(shell glib-compile-resources --sourcedir=$(RESOURCE_DIR) --generate-dependencies $(srcdir)/ag.gresource.xml)
 
-ag_enum_headers = ag-icon-view.h
+ag_enum_headers = ag-icon-view.h ag-header-bar.h
 
 ag-resources.c: ag.gresource.xml $(resource_files)
 	glib-compile-resources --target=$@ --sourcedir=$(RESOURCE_DIR) --generate-source --c-name ag $(srcdir)/ag.gresource.xml
@@ -35,6 +35,7 @@ astrognome_source_files = \
 						  ag-icon-view.c      \
 						  ag-chart-renderer.c \
 						  ag-chart-edit.c     \
+						  ag-header-bar.c     \
 						  astrognome.c        \
 						  $(NULL)
 

src/ag-header-bar.c

@@ -0,0 +1,267 @@
+#include "ag-header-bar.h"
+#include "ag-enumtypes.h"
+
+#define DEFAULT_MODE AG_HEADER_BAR_MODE_LIST
+
+typedef struct {
+    GtkWidget       *selection_cancel_button;
+    GtkWidget       *left_stack;
+    GtkWidget       *right_stack;
+
+    AgHeaderBarMode mode;
+} AgHeaderBarPrivate;
+
+enum {
+    PROP_0,
+    PROP_MODE,
+    PROP_COUNT
+};
+
+static void ag_header_bar_dispose(GObject *gobject);
+static void ag_header_bar_finalize(GObject *gobject);
+
+G_DEFINE_TYPE_WITH_PRIVATE(AgHeaderBar, ag_header_bar, GTK_TYPE_HEADER_BAR);
+
+#define GET_PRIV(v, o) AgHeaderBarPrivate *v = ag_header_bar_get_instance_private(o);
+
+static GParamSpec *properties[PROP_COUNT];
+
+static void
+ag_header_bar_selection_mode_cb(GtkButton   *button,
+                                AgHeaderBar *header_bar)
+{
+    GET_PRIV(priv, header_bar);
+
+    switch (priv->mode) {
+        case AG_HEADER_BAR_MODE_LIST:
+            ag_header_bar_set_mode(header_bar, AG_HEADER_BAR_MODE_SELECTION);
+
+            break;
+
+        case AG_HEADER_BAR_MODE_SELECTION:
+            ag_header_bar_set_mode(header_bar, AG_HEADER_BAR_MODE_LIST);
+
+            break;
+
+        default:
+            g_warning("Invalid header bar mode transition!");
+
+            break;
+    }
+}
+
+static void
+ag_header_bar_set_selection_mode(AgHeaderBar *header_bar, gboolean state)
+{
+    GtkStyleContext *style;
+    GET_PRIV(priv, header_bar);
+
+    style = gtk_widget_get_style_context(GTK_WIDGET(header_bar));
+
+    if (state) {
+        // Enabling selection mode
+        gtk_stack_set_visible_child_name(
+                GTK_STACK(priv->right_stack),
+                "selection"
+            );
+        gtk_widget_hide(priv->left_stack);
+        gtk_style_context_add_class(style, "selection-mode");
+    } else {
+        // Disabling selection mode
+        gtk_widget_show(priv->left_stack);
+        gtk_style_context_remove_class(style, "selection-mode");
+    }
+
+    gtk_header_bar_set_show_close_button(
+            GTK_HEADER_BAR(header_bar),
+            !state
+        );
+}
+
+static void
+ag_header_bar_set_mode_internal(AgHeaderBar     *header_bar,
+                                AgHeaderBarMode mode,
+                                gboolean        force)
+{
+    GET_PRIV(priv, header_bar);
+
+    if (!force && (priv->mode == mode)) {
+        return;
+    }
+
+    priv->mode = mode;
+
+    switch (mode) {
+        case AG_HEADER_BAR_MODE_LIST:
+            gtk_stack_set_visible_child_name(
+                    GTK_STACK(priv->left_stack),
+                    "list"
+                );
+            gtk_stack_set_visible_child_name(
+                    GTK_STACK(priv->right_stack),
+                    "list"
+                );
+            ag_header_bar_set_selection_mode(header_bar, FALSE);
+
+            break;
+
+        case AG_HEADER_BAR_MODE_CHART:
+            gtk_stack_set_visible_child_name(
+                    GTK_STACK(priv->left_stack),
+                    "chart"
+                );
+            gtk_stack_set_visible_child_name(
+                    GTK_STACK(priv->right_stack),
+                    "chart"
+                );
+            ag_header_bar_set_selection_mode(header_bar, FALSE);
+
+            break;
+
+        case AG_HEADER_BAR_MODE_SELECTION:
+            ag_header_bar_set_selection_mode(header_bar, TRUE);
+
+            break;
+
+        default:
+            g_warning("Invalid header bar mode!");
+
+            break;
+    }
+
+    g_object_notify_by_pspec(G_OBJECT(header_bar), properties[PROP_MODE]);
+}
+
+void
+ag_header_bar_set_mode(AgHeaderBar     *header_bar,
+                       AgHeaderBarMode mode)
+{
+    ag_header_bar_set_mode_internal(header_bar, mode, FALSE);
+}
+
+AgHeaderBarMode
+ag_header_bar_get_mode(AgHeaderBar *header_bar)
+{
+    GET_PRIV(priv, header_bar);
+
+    return priv->mode;
+}
+
+static void
+ag_header_bar_set_property(GObject      *gobject,
+                           guint        prop_id,
+                           const GValue *value,
+                           GParamSpec   *pspec)
+{
+    switch (prop_id) {
+        case PROP_MODE:
+            ag_header_bar_set_mode(
+                    AG_HEADER_BAR(gobject),
+                    g_value_get_enum(value)
+                );
+
+            return;
+
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, prop_id, pspec);
+
+            return;
+    }
+}
+
+static void
+ag_header_bar_get_property(GObject    *gobject,
+                           guint      prop_id,
+                           GValue     *value,
+                           GParamSpec *pspec)
+{
+    GET_PRIV(priv, AG_HEADER_BAR(gobject));
+
+    switch (prop_id) {
+        case PROP_MODE:
+            g_value_set_enum(value, priv->mode);
+
+            break;
+
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, prop_id, pspec);
+
+            break;
+    }
+}
+
+static void
+ag_header_bar_dispose(GObject *gobject)
+{
+    G_OBJECT_CLASS(ag_header_bar_parent_class)->dispose(gobject);
+}
+
+static void
+ag_header_bar_finalize(GObject *gobject)
+{
+    g_signal_handlers_destroy(gobject);
+    G_OBJECT_CLASS(ag_header_bar_parent_class)->finalize(gobject);
+}
+
+static void
+ag_header_bar_class_init(AgHeaderBarClass *klass)
+{
+    GObjectClass   *gobject_class = (GObjectClass *)klass;
+    GtkWidgetClass *widget_class  = GTK_WIDGET_CLASS(klass);
+
+    gobject_class->dispose      = ag_header_bar_dispose;
+    gobject_class->finalize     = ag_header_bar_finalize;
+    gobject_class->set_property = ag_header_bar_set_property;
+    gobject_class->get_property = ag_header_bar_get_property;
+
+    properties[PROP_MODE] = g_param_spec_enum(
+            "mode",
+            "Mode",
+            "Header bar mode",
+            AG_TYPE_HEADER_BAR_MODE,
+            AG_HEADER_BAR_MODE_LIST,
+            G_PARAM_STATIC_STRINGS
+            | G_PARAM_READWRITE
+        );
+    g_object_class_install_property(
+            gobject_class,
+            PROP_MODE,
+            properties[PROP_MODE]
+        );
+
+    gtk_widget_class_set_template_from_resource(
+            widget_class,
+            "/eu/polonkai/gergely/Astrognome/ui/ag-header-bar.ui"
+        );
+
+    gtk_widget_class_bind_template_child_private(
+            widget_class,
+            AgHeaderBar,
+            selection_cancel_button
+        );
+    gtk_widget_class_bind_template_child_private(
+            widget_class,
+            AgHeaderBar,
+            left_stack
+        );
+    gtk_widget_class_bind_template_child_private(
+            widget_class,
+            AgHeaderBar,
+            right_stack
+        );
+
+    gtk_widget_class_bind_template_callback(
+            widget_class,
+            ag_header_bar_selection_mode_cb
+        );
+}
+
+static void
+ag_header_bar_init(AgHeaderBar *header_bar)
+{
+    GET_PRIV(priv, header_bar);
+
+    gtk_widget_init_template(GTK_WIDGET(header_bar));
+
+    ag_header_bar_set_mode_internal(header_bar, DEFAULT_MODE, TRUE);
+}

src/ag-header-bar.h

@@ -0,0 +1,54 @@
+#ifndef __AG_HEADER_BAR_H__
+#define __AG_HEADER_BAR_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define AG_TYPE_HEADER_BAR                                              \
+   (ag_header_bar_get_type())
+#define AG_HEADER_BAR(obj)                                              \
+   (G_TYPE_CHECK_INSTANCE_CAST((obj),                                   \
+                               AG_TYPE_HEADER_BAR,                      \
+                               AgHeaderBar))
+#define AG_HEADER_BAR_CLASS(klass)                                      \
+   (G_TYPE_CHECK_CLASS_CAST((klass),                                    \
+                            AG_TYPE_HEADER_BAR,                         \
+                            AgHeaderBarClass))
+#define IS_AG_HEADER_BAR(obj)                                           \
+   (G_TYPE_CHECK_INSTANCE_TYPE((obj),                                   \
+                               AG_TYPE_HEADER_BAR))
+#define IS_AG_HEADER_BAR_CLASS(klass)                                   \
+   (G_TYPE_CHECK_CLASS_TYPE((klass),                                    \
+                            AG_TYPE_HEADER_BAR))
+#define AG_HEADER_BAR_GET_CLASS(obj)                                    \
+   (G_TYPE_INSTANCE_GET_CLASS((obj),                                    \
+                              AG_TYPE_HEADER_BAR,                       \
+                              AgHeaderBarClass))
+
+typedef struct _AgHeaderBar      AgHeaderBar;
+typedef struct _AgHeaderBarClass AgHeaderBarClass;
+
+struct _AgHeaderBarClass {
+    GtkHeaderBarClass parent_class;
+};
+
+struct _AgHeaderBar{
+    GtkHeaderBar parent;
+};
+
+typedef enum {
+    AG_HEADER_BAR_MODE_LIST,
+    AG_HEADER_BAR_MODE_CHART,
+    AG_HEADER_BAR_MODE_SELECTION
+} AgHeaderBarMode;
+
+GType ag_header_bar_get_type(void) G_GNUC_CONST;
+
+void ag_header_bar_set_mode(AgHeaderBar *header_bar, AgHeaderBarMode mode);
+
+AgHeaderBarMode ag_header_bar_get_mode(AgHeaderBar *header_bar);
+
+G_END_DECLS
+
+#endif /* __AG_HEADER_BAR_H__ */

src/ag.gresource.xml

@@ -5,6 +5,7 @@
     <file>ui/ag-window.ui</file>
     <file>ui/ag-preferences.ui</file>
     <file>ui/ag-chart-edit.ui</file>
+    <file>ui/ag-header-bar.ui</file>
     <file>ui/chart-default.css</file>
     <file>ui/chart-default.xsl</file>
 

src/resources/ui/ag-header-bar.ui

@@ -0,0 +1,151 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk+" version="3.0"/>
+  <template class="AgHeaderBar" parent="GtkHeaderBar">
+    <property name="visible">True</property>
+    <property name="show_close_button">True</property>
+    <property name="title" translatable="yes">Astrognome</property>
+    <property name="vexpand">False</property>
+    <child>
+      <object class="GtkStack" id="left_stack">
+        <property name="visible">True</property>
+        <property name="homogeneous">False</property>
+        <child>
+          <object class="GtkGrid">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkButton" id="new_button">
+                <property name="visible">True</property>
+                <property name="action_name">win.new-chart</property>
+                <style>
+                  <class name="image-button"/>
+                </style>
+                <child>
+                  <object class="GtkImage">
+                    <property name="visible">True</property>
+                    <property name="icon_name">document-new-symbolic</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton" id="refresh_button">
+                <property name="visible">True</property>
+                <property name="action_name">win.refresh</property>
+                <style>
+                  <class name="image-button"/>
+                </style>
+                <child>
+                  <object class="GtkImage">
+                    <property name="visible">True</property>
+                    <property name="icon_name">view-refresh-symbolic</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">list</property>
+          </packing>
+        </child><!-- list mode left side buttons -->
+        <child>
+          <object class="GtkGrid">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkButton" id="back_button">
+                <property name="visible">True</property>
+                <property name="action_name">win.back</property>
+                <style>
+                  <class name="image-button"/>
+                </style>
+                <child>
+                  <object class="GtkImage">
+                    <property name="visible">True</property>
+                    <property name="icon_name">go-previous-symbolic</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">chart</property>
+          </packing>
+        </child><!-- chart mode left side buttons -->
+      </object>
+    </child>
+    <child>
+      <object class="GtkStack" id="right_stack">
+        <property name="visible">True</property>
+        <property name="homogeneous">False</property>
+        <child>
+          <object class="GtkButton">
+            <property name="visible">True</property>
+            <signal name="clicked" handler="ag_header_bar_selection_mode_cb" object="AgHeaderBar" swapped="no"/>
+            <style>
+              <class name="image-button"/>
+            </style>
+            <child>
+              <object class="GtkImage">
+                <property name="visible">True</property>
+                <property name="icon_name">object-select-symbolic</property>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">list</property>
+          </packing>
+        </child><!-- list mode right side buttons -->
+        <child>
+          <object class="GtkButton" id="selection_cancel_button">
+            <property name="visible">True</property>
+            <property name="label" translatable="yes">Cancel</property>
+            <signal name="clicked" handler="ag_header_bar_selection_mode_cb" object="AgHeaderBar" swapped="no"/>
+          </object>
+          <packing>
+            <property name="name">selection</property>
+          </packing>
+        </child><!-- selection mode right side buttons -->
+        <child>
+          <object class="GtkGrid">
+            <property name="visible">True</property>
+            <child>
+              <object class="GtkMenuButton" id="view_menu">
+                <property name="action_name">win.view-menu</property>
+                <style>
+                  <class name="image-button"/>
+                </style>
+                <child>
+                  <object class="GtkImage">
+                    <property name="visible">True</property>
+                    <property name="icon_name">document-properties-symbolic</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+            <child>
+              <object class="GtkMenuButton" id="gear_menu">
+                <property name="visible">True</property>
+                <property name="action_name">win.gear-menu</property>
+                <style>
+                  <class name="image-button"/>
+                </style>
+                <child>
+                  <object class="GtkImage">
+                    <property name="visible">True</property>
+                    <property name="icon_name">open-menu-symbolic</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="name">chart</property>
+          </packing>
+        </child><!-- chart mode right side buttons -->
+      </object>
+      <packing>
+        <property name="pack_type">end</property>
+      </packing>
+    </child>
+  </template>
+</interface>