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Diffstat (limited to 'app/core/gimpprojectable.c')
| -rw-r--r-- | app/core/gimpprojectable.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/app/core/gimpprojectable.c b/app/core/gimpprojectable.c new file mode 100644 index 0000000..8814c98 --- /dev/null +++ b/app/core/gimpprojectable.c @@ -0,0 +1,262 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpprojectable.c + * Copyright (C) 2008 Michael Natterer <mitch@gimp.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gegl.h> + +#include "core-types.h" + +#include "gimpmarshal.h" +#include "gimpprojectable.h" +#include "gimpviewable.h" + + +enum +{ + INVALIDATE, + FLUSH, + STRUCTURE_CHANGED, + BOUNDS_CHANGED, + LAST_SIGNAL +}; + + +G_DEFINE_INTERFACE (GimpProjectable, gimp_projectable, GIMP_TYPE_VIEWABLE) + + +static guint projectable_signals[LAST_SIGNAL] = { 0 }; + + +/* private functions */ + + +static void +gimp_projectable_default_init (GimpProjectableInterface *iface) +{ + projectable_signals[INVALIDATE] = + g_signal_new ("invalidate", + G_TYPE_FROM_CLASS (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpProjectableInterface, invalidate), + NULL, NULL, + gimp_marshal_VOID__INT_INT_INT_INT, + G_TYPE_NONE, 4, + G_TYPE_INT, + G_TYPE_INT, + G_TYPE_INT, + G_TYPE_INT); + + projectable_signals[FLUSH] = + g_signal_new ("flush", + G_TYPE_FROM_CLASS (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpProjectableInterface, flush), + NULL, NULL, + gimp_marshal_VOID__BOOLEAN, + G_TYPE_NONE, 1, + G_TYPE_BOOLEAN); + + projectable_signals[STRUCTURE_CHANGED] = + g_signal_new ("structure-changed", + G_TYPE_FROM_CLASS (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpProjectableInterface, structure_changed), + NULL, NULL, + gimp_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + projectable_signals[BOUNDS_CHANGED] = + g_signal_new ("bounds-changed", + G_TYPE_FROM_CLASS (iface), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpProjectableInterface, bounds_changed), + NULL, NULL, + gimp_marshal_VOID__INT_INT, + G_TYPE_NONE, 2, + G_TYPE_INT, + G_TYPE_INT); +} + + +/* public functions */ + +void +gimp_projectable_invalidate (GimpProjectable *projectable, + gint x, + gint y, + gint width, + gint height) +{ + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + g_signal_emit (projectable, projectable_signals[INVALIDATE], 0, + x, y, width, height); +} + +void +gimp_projectable_flush (GimpProjectable *projectable, + gboolean preview_invalidated) +{ + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + g_signal_emit (projectable, projectable_signals[FLUSH], 0, + preview_invalidated); +} + +void +gimp_projectable_structure_changed (GimpProjectable *projectable) +{ + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + g_signal_emit (projectable, projectable_signals[STRUCTURE_CHANGED], 0); +} + +void +gimp_projectable_bounds_changed (GimpProjectable *projectable, + gint old_x, + gint old_y) +{ + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + g_signal_emit (projectable, projectable_signals[BOUNDS_CHANGED], 0, + old_x, old_y); +} + +GimpImage * +gimp_projectable_get_image (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_val_if_fail (GIMP_IS_PROJECTABLE (projectable), NULL); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->get_image) + return iface->get_image (projectable); + + return NULL; +} + +const Babl * +gimp_projectable_get_format (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_val_if_fail (GIMP_IS_PROJECTABLE (projectable), NULL); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->get_format) + return iface->get_format (projectable); + + return 0; +} + +void +gimp_projectable_get_offset (GimpProjectable *projectable, + gint *x, + gint *y) +{ + GimpProjectableInterface *iface; + + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + g_return_if_fail (x != NULL); + g_return_if_fail (y != NULL); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + *x = 0; + *y = 0; + + if (iface->get_offset) + iface->get_offset (projectable, x, y); +} + +GeglRectangle +gimp_projectable_get_bounding_box (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + GeglRectangle result = {}; + + g_return_val_if_fail (GIMP_IS_PROJECTABLE (projectable), result); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->get_bounding_box) + result = iface->get_bounding_box (projectable); + + return result; +} + +GeglNode * +gimp_projectable_get_graph (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_val_if_fail (GIMP_IS_PROJECTABLE (projectable), NULL); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->get_graph) + return iface->get_graph (projectable); + + return NULL; +} + +void +gimp_projectable_begin_render (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->begin_render) + iface->begin_render (projectable); +} + +void +gimp_projectable_end_render (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->end_render) + iface->end_render (projectable); +} + +void +gimp_projectable_invalidate_preview (GimpProjectable *projectable) +{ + GimpProjectableInterface *iface; + + g_return_if_fail (GIMP_IS_PROJECTABLE (projectable)); + + iface = GIMP_PROJECTABLE_GET_INTERFACE (projectable); + + if (iface->invalidate_preview) + iface->invalidate_preview (projectable); +} |