[gtk+/wip/baedert/drawing] spinbutton: Add docs for new public API

[Timm Bäder <baedert src gnome org>]

commit 433c0682d297f6f13cde98e2eb41ce13955eadc0
Author: Timm Bäder <mail baedert org>
Date:   Mon May 22 13:21:09 2017 +0200

    spinbutton: Add docs for new public API

 gtk/gtkspinbutton.c |   59 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 55 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index 93c11a3..639230f 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -2279,9 +2279,11 @@ gtk_spin_button_update (GtkSpinButton *spin_button)
 
 /**
  * gtk_spin_button_get_text:
- * @spin_button:
+ * @spin_button: a #GtkSpinButton
+ *
+ * Returns: (transfer none): The current text shown in the entry area of @spin_button.
  *
- * Returns: (transfer none): The text
+ * Since: 3.92
  */
 const char *
 gtk_spin_button_get_text (GtkSpinButton *spin_button)
@@ -2295,9 +2297,12 @@ gtk_spin_button_get_text (GtkSpinButton *spin_button)
 
 /**
  * gtk_spin_button_set_text:
- * @spin_button
+ * @spin_button: a #GtkSpinButton
  *
+ * Sets the current text of the spinbutton. Note that setting this will not change
+ * the value of the adjustment @spin_button.
  *
+ * Since: 3.92
  */
 void
 gtk_spin_button_set_text (GtkSpinButton *spin_button,
@@ -2312,6 +2317,20 @@ gtk_spin_button_set_text (GtkSpinButton *spin_button,
   g_object_notify (G_OBJECT (spin_button), "text");
 }
 
+/**
+ * gtk_spin_button_get_max_width_chars:
+ * @spin_button: a #GtkSpinButton
+ *
+ * Retrieves the desired maximum width of @spin_button, in characters.
+ * Note that this only applies to the entry area of @spin_button, not the
+ * spin button. This is especially important for horizontal spinbuttons.
+ *
+ * See also #GtkEntry:max-width-chars
+ *
+ * Returns: the maximum width of the spin button, in characters
+ *
+ * Since: 3.92
+ */
 int
 gtk_spin_button_get_max_width_chars (GtkSpinButton *spin_button)
 {
@@ -2322,7 +2341,17 @@ gtk_spin_button_get_max_width_chars (GtkSpinButton *spin_button)
   return gtk_entry_get_width_chars (GTK_ENTRY (priv->entry));
 }
 
-
+/**
+ * gtk_spin_button_set_max_width_chars:
+ * @spin_button: a #GtkSpinButton
+ * @max_width_chars: new desired maximum width in chars
+ *
+ * Sets the desired maximum width of @spin_button, in characters.
+ * Note that this only applies to the entry area of @spin_button, not the
+ * spin button. This is especially important for horizontal spinbuttons.
+ *
+ * Since: 3.92
+ */
 void
 gtk_spin_button_set_max_width_chars (GtkSpinButton *spin_button,
                                     int            max_width_chars)
@@ -2335,6 +2364,18 @@ gtk_spin_button_set_max_width_chars (GtkSpinButton *spin_button,
   g_object_notify (G_OBJECT (spin_button), "max-width-chars");
 }
 
+/**
+ * gtk_spin_button_get_width_chars:
+ * @spin_button: a #GtkSpinButton
+ *
+ * Get the value set by gtk_spin_button_set_width_chars(). Note that this
+ * value only applies to the entry area of @spin_button.
+ *
+ * Returns: The number of characters to request space for in the entry
+ *          area of @spin_button
+ *
+ * Since: 3.92
+ */
 int
 gtk_spin_button_get_width_chars (GtkSpinButton *spin_button)
 {
@@ -2345,6 +2386,16 @@ gtk_spin_button_get_width_chars (GtkSpinButton *spin_button)
   return gtk_entry_get_width_chars (GTK_ENTRY (priv->entry));
 }
 
+/**
+ * gtk_spin_button_set_width_chars:
+ * @spin_button: a #GtkSpinButton
+ * @width_chars: desired width in characters
+ *
+ * Changes the size request of the entry area of @spin_button
+ * to be about the right size for @width_chars characters.
+ *
+ * Since: 3.92
+ */
 void
 gtk_spin_button_set_width_chars (GtkSpinButton *spin_button,
                                  int            width_chars)