mhu/gds-render
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Restructure code, improve doxygen documentation

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This commit is contained in:
Mario Hüttel
2019-03-25 18:47:12 +01:00
parent a99a469cf0
commit 829c9a2386
6 changed files with 94 additions and 57 deletions
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21
widgets/layer-element.c
View File

@@ -120,26 +120,29 @@ void layer_element_get_color(LayerElement *elem, GdkRGBA *rgba)
{
if (!rgba)
return;
gtk_color_chooser_get_rgba(GTK_COLOR_CHOOSER(elem->priv.color), rgba);
}
void layer_element_set_color(LayerElement *elem, GdkRGBA *rgba)
{
if (!elem || !rgba)
return;
gtk_color_chooser_set_rgba(GTK_COLOR_CHOOSER(elem->priv.color), rgba);
}
void layer_element_set_dnd_callbacks(LayerElement *elem, GtkTargetEntry *entries, int entry_count,
void (*drag_begin)(GtkWidget *, GdkDragContext *, gpointer),
void (*drag_data_get)(GtkWidget *, GdkDragContext *,
GtkSelectionData *, guint , guint, gpointer),
void (*drag_end)(GtkWidget *, GdkDragContext *, gpointer))
void layer_element_set_dnd_callbacks(LayerElement *elem, struct layer_element_dnd_data *data)
{
if (!elem || !data)
return;
/* Setup drag and drop */
gtk_style_context_add_class (gtk_widget_get_style_context(GTK_WIDGET(elem)), "row");
gtk_drag_source_set(GTK_WIDGET(elem->priv.event_handle), GDK_BUTTON1_MASK, entries, entry_count, GDK_ACTION_MOVE);
g_signal_connect(elem->priv.event_handle, "drag-begin", G_CALLBACK(drag_begin), NULL);
g_signal_connect(elem->priv.event_handle, "drag-data-get", G_CALLBACK(drag_data_get), NULL);
g_signal_connect(elem->priv.event_handle, "drag-end", G_CALLBACK(drag_end), NULL);
gtk_drag_source_set(GTK_WIDGET(elem->priv.event_handle), GDK_BUTTON1_MASK, data->entries, data->entry_count, GDK_ACTION_MOVE);
g_signal_connect(elem->priv.event_handle, "drag-begin", G_CALLBACK(data->drag_begin), NULL);
g_signal_connect(elem->priv.event_handle, "drag-data-get", G_CALLBACK(data->drag_data_get), NULL);
g_signal_connect(elem->priv.event_handle, "drag-end", G_CALLBACK(data->drag_end), NULL);
}

29
widgets/layer-element.h
View File

@@ -56,6 +56,22 @@ struct _LayerElement {
LayerElementPriv priv;
};
/**
* @brief This structure holds the necessary data to set up a LayerElement for Drag'n'Drop
*/
struct layer_element_dnd_data {
/** @brief Array of target entries for the DnD operation */
GtkTargetEntry *entries;
/** @brief Count of elements in layer_element_dnd_data::entries array */
int entry_count;
/** @brief Callback function for drag_begin event */
void (*drag_begin)(GtkWidget *, GdkDragContext *, gpointer);
/** @brief Callback fucktion for data_get event */
void (*drag_data_get)(GtkWidget *, GdkDragContext *, GtkSelectionData *, guint, guint, gpointer);
/** @brief Callback function for drag_end event */
void (*drag_end)(GtkWidget *, GdkDragContext *, gpointer);
};
/**
* @brief Create new layer element object
* @return new object
@@ -119,16 +135,11 @@ void layer_element_get_color(LayerElement *elem, GdkRGBA *rgba);
void layer_element_set_color(LayerElement *elem, GdkRGBA *rgba);
/**
* @brief layer_element_set_dnd_callbacks
* @param elem
* @param entries
* @param entry_count
* @brief Setup drag and drop of \p elem for use in the LayerSelector
* @param elem Layer element to set up
* @param data Data array containing the necessary callbacks etc. for drag and drop.
*/
void layer_element_set_dnd_callbacks(LayerElement *elem, GtkTargetEntry *entries, int entry_count,
void (*drag_begin)(GtkWidget *, GdkDragContext *, gpointer),
void (*drag_data_get)(GtkWidget *, GdkDragContext *,
GtkSelectionData *, guint , guint, gpointer),
void (*drag_end)(GtkWidget *, GdkDragContext *, gpointer));
void layer_element_set_dnd_callbacks(LayerElement *elem, struct layer_element_dnd_data *data);
G_END_DECLS