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Add API for turning off the grid.

This commit is contained in:
Přemysl Eric Janouch 2011-03-06 15:56:41 +01:00
parent 6ae08ee425
commit c8caca073f
2 changed files with 40 additions and 1 deletions
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38
liblogdiag/ld-diagram-view.c
View File

@ -121,6 +121,7 @@ Color;
* @x: the X coordinate of the center of view.
* @y: the Y coordinate of the center of view.
* @zoom: the current zoom.
* @show_grid: whether to show the grid.
* @terminal: position of the highlighted terminal.
* @terminal_hovered: whether a terminal is hovered.
* @drag_start_pos: position of the mouse pointer when dragging started.
@ -142,6 +143,8 @@ struct _LdDiagramViewPrivate
gdouble y;
gdouble zoom;
gboolean show_grid;
LdPoint terminal;
gboolean terminal_hovered;
@ -471,6 +474,8 @@ ld_diagram_view_init (LdDiagramView *self)
self->priv->y = 0;
self->priv->zoom = ZOOM_DEFAULT;
self->priv->show_grid = TRUE;
color_set (COLOR_GET (self, COLOR_BASE), 1, 1, 1, 1);
color_set (COLOR_GET (self, COLOR_GRID), 0.5, 0.5, 0.5, 1);
color_set (COLOR_GET (self, COLOR_OBJECT), 0, 0, 0, 1);
@ -1092,6 +1097,35 @@ ld_diagram_view_zoom_out (LdDiagramView *self)
ld_diagram_view_set_zoom (self, self->priv->zoom / ZOOM_STEP);
}
/**
* ld_diagram_view_get_show_grid:
* @self: an #LdDiagramView object.
*
* Return value: whether the grid is shown.
*/
gboolean
ld_diagram_view_get_show_grid (LdDiagramView *self)
{
g_return_val_if_fail (LD_IS_DIAGRAM_VIEW (self), FALSE);
return self->priv->show_grid;
}
/**
* ld_diagram_view_set_show_grid:
* @self: an #LdDiagramView object.
* @show_grid: whether to show the grid.
*
* Set whether the grid is shown.
*/
void
ld_diagram_view_set_show_grid (LdDiagramView *self, gboolean show_grid)
{
g_return_if_fail (LD_IS_DIAGRAM_VIEW (self));
self->priv->show_grid = show_grid;
gtk_widget_queue_draw (GTK_WIDGET (self));
}
/* ===== Helper functions ================================================== */
@ -2298,7 +2332,9 @@ on_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
color_apply (COLOR_GET (data.self, COLOR_BASE), data.cr);
cairo_paint (data.cr);
draw_grid (widget, &data);
if (data.self->priv->show_grid)
draw_grid (widget, &data);
draw_diagram (widget, &data);
draw_terminal (widget, &data);

3
liblogdiag/ld-diagram-view.h
View File

@ -90,6 +90,9 @@ void ld_diagram_view_zoom_in (LdDiagramView *self);
gboolean ld_diagram_view_can_zoom_out (LdDiagramView *self);
void ld_diagram_view_zoom_out (LdDiagramView *self);
gboolean ld_diagram_view_get_show_grid (LdDiagramView *self);
void ld_diagram_view_set_show_grid (LdDiagramView *self, gboolean show_grid);
void ld_diagram_view_add_object_begin (LdDiagramView *self,
LdDiagramObject *object);