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-rw-r--r--app/display/gimpdisplay.c985
1 files changed, 985 insertions, 0 deletions
diff --git a/app/display/gimpdisplay.c b/app/display/gimpdisplay.c
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--- /dev/null
+++ b/app/display/gimpdisplay.c
@@ -0,0 +1,985 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+
+#include "display-types.h"
+#include "tools/tools-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontainer.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimpprogress.h"
+
+#include "widgets/gimpdialogfactory.h"
+
+#include "tools/gimptool.h"
+#include "tools/tool_manager.h"
+
+#include "gimpdisplay.h"
+#include "gimpdisplay-handlers.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-expose.h"
+#include "gimpdisplayshell-handlers.h"
+#include "gimpdisplayshell-icon.h"
+#include "gimpdisplayshell-scroll.h"
+#include "gimpdisplayshell-scrollbars.h"
+#include "gimpdisplayshell-title.h"
+#include "gimpdisplayshell-transform.h"
+#include "gimpimagewindow.h"
+
+#include "gimp-intl.h"
+
+
+#define FLUSH_NOW_INTERVAL (G_TIME_SPAN_SECOND / 60)
+
+#define PAINT_AREA_CHUNK_WIDTH 32
+#define PAINT_AREA_CHUNK_HEIGHT 32
+
+
+enum
+{
+ PROP_0,
+ PROP_ID,
+ PROP_GIMP,
+ PROP_IMAGE,
+ PROP_SHELL
+};
+
+
+typedef struct _GimpDisplayPrivate GimpDisplayPrivate;
+
+struct _GimpDisplayPrivate
+{
+ gint ID; /* unique identifier for this display */
+
+ GimpImage *image; /* pointer to the associated image */
+ gint instance; /* the instance # of this display as
+ * taken from the image at creation */
+
+ GeglRectangle bounding_box;
+
+ GtkWidget *shell;
+ cairo_region_t *update_region;
+
+ guint64 last_flush_now;
+};
+
+#define GIMP_DISPLAY_GET_PRIVATE(display) \
+ ((GimpDisplayPrivate *) gimp_display_get_instance_private ((GimpDisplay *) (display)))
+
+
+/* local function prototypes */
+
+static void gimp_display_progress_iface_init (GimpProgressInterface *iface);
+
+static void gimp_display_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_display_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static GimpProgress * gimp_display_progress_start (GimpProgress *progress,
+ gboolean cancellable,
+ const gchar *message);
+static void gimp_display_progress_end (GimpProgress *progress);
+static gboolean gimp_display_progress_is_active (GimpProgress *progress);
+static void gimp_display_progress_set_text (GimpProgress *progress,
+ const gchar *message);
+static void gimp_display_progress_set_value (GimpProgress *progress,
+ gdouble percentage);
+static gdouble gimp_display_progress_get_value (GimpProgress *progress);
+static void gimp_display_progress_pulse (GimpProgress *progress);
+static guint32 gimp_display_progress_get_window_id (GimpProgress *progress);
+static gboolean gimp_display_progress_message (GimpProgress *progress,
+ Gimp *gimp,
+ GimpMessageSeverity severity,
+ const gchar *domain,
+ const gchar *message);
+static void gimp_display_progress_canceled (GimpProgress *progress,
+ GimpDisplay *display);
+
+static void gimp_display_flush_whenever (GimpDisplay *display,
+ gboolean now);
+static void gimp_display_paint_area (GimpDisplay *display,
+ gint x,
+ gint y,
+ gint w,
+ gint h);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpDisplay, gimp_display, GIMP_TYPE_OBJECT,
+ G_ADD_PRIVATE (GimpDisplay)
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_PROGRESS,
+ gimp_display_progress_iface_init))
+
+#define parent_class gimp_display_parent_class
+
+
+static void
+gimp_display_class_init (GimpDisplayClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = gimp_display_set_property;
+ object_class->get_property = gimp_display_get_property;
+
+ g_object_class_install_property (object_class, PROP_ID,
+ g_param_spec_int ("id",
+ NULL, NULL,
+ 0, G_MAXINT, 0,
+ GIMP_PARAM_READABLE));
+
+ g_object_class_install_property (object_class, PROP_GIMP,
+ g_param_spec_object ("gimp",
+ NULL, NULL,
+ GIMP_TYPE_GIMP,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_IMAGE,
+ g_param_spec_object ("image",
+ NULL, NULL,
+ GIMP_TYPE_IMAGE,
+ GIMP_PARAM_READABLE));
+
+ g_object_class_install_property (object_class, PROP_SHELL,
+ g_param_spec_object ("shell",
+ NULL, NULL,
+ GIMP_TYPE_DISPLAY_SHELL,
+ GIMP_PARAM_READABLE));
+}
+
+static void
+gimp_display_init (GimpDisplay *display)
+{
+}
+
+static void
+gimp_display_progress_iface_init (GimpProgressInterface *iface)
+{
+ iface->start = gimp_display_progress_start;
+ iface->end = gimp_display_progress_end;
+ iface->is_active = gimp_display_progress_is_active;
+ iface->set_text = gimp_display_progress_set_text;
+ iface->set_value = gimp_display_progress_set_value;
+ iface->get_value = gimp_display_progress_get_value;
+ iface->pulse = gimp_display_progress_pulse;
+ iface->get_window_id = gimp_display_progress_get_window_id;
+ iface->message = gimp_display_progress_message;
+}
+
+static void
+gimp_display_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDisplay *display = GIMP_DISPLAY (object);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ switch (property_id)
+ {
+ case PROP_GIMP:
+ {
+ gint ID;
+
+ display->gimp = g_value_get_object (value); /* don't ref the gimp */
+ display->config = GIMP_DISPLAY_CONFIG (display->gimp->config);
+
+ do
+ {
+ ID = display->gimp->next_display_ID++;
+
+ if (display->gimp->next_display_ID == G_MAXINT)
+ display->gimp->next_display_ID = 1;
+ }
+ while (gimp_display_get_by_ID (display->gimp, ID));
+
+ private->ID = ID;
+ }
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_display_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDisplay *display = GIMP_DISPLAY (object);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ switch (property_id)
+ {
+ case PROP_ID:
+ g_value_set_int (value, private->ID);
+ break;
+
+ case PROP_GIMP:
+ g_value_set_object (value, display->gimp);
+ break;
+
+ case PROP_IMAGE:
+ g_value_set_object (value, private->image);
+ break;
+
+ case PROP_SHELL:
+ g_value_set_object (value, private->shell);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static GimpProgress *
+gimp_display_progress_start (GimpProgress *progress,
+ gboolean cancellable,
+ const gchar *message)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ return gimp_progress_start (GIMP_PROGRESS (private->shell), cancellable,
+ "%s", message);
+
+ return NULL;
+}
+
+static void
+gimp_display_progress_end (GimpProgress *progress)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ gimp_progress_end (GIMP_PROGRESS (private->shell));
+}
+
+static gboolean
+gimp_display_progress_is_active (GimpProgress *progress)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ return gimp_progress_is_active (GIMP_PROGRESS (private->shell));
+
+ return FALSE;
+}
+
+static void
+gimp_display_progress_set_text (GimpProgress *progress,
+ const gchar *message)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ gimp_progress_set_text_literal (GIMP_PROGRESS (private->shell), message);
+}
+
+static void
+gimp_display_progress_set_value (GimpProgress *progress,
+ gdouble percentage)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ gimp_progress_set_value (GIMP_PROGRESS (private->shell), percentage);
+}
+
+static gdouble
+gimp_display_progress_get_value (GimpProgress *progress)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ return gimp_progress_get_value (GIMP_PROGRESS (private->shell));
+
+ return 0.0;
+}
+
+static void
+gimp_display_progress_pulse (GimpProgress *progress)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ gimp_progress_pulse (GIMP_PROGRESS (private->shell));
+}
+
+static guint32
+gimp_display_progress_get_window_id (GimpProgress *progress)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ return gimp_progress_get_window_id (GIMP_PROGRESS (private->shell));
+
+ return 0;
+}
+
+static gboolean
+gimp_display_progress_message (GimpProgress *progress,
+ Gimp *gimp,
+ GimpMessageSeverity severity,
+ const gchar *domain,
+ const gchar *message)
+{
+ GimpDisplay *display = GIMP_DISPLAY (progress);
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->shell)
+ return gimp_progress_message (GIMP_PROGRESS (private->shell), gimp,
+ severity, domain, message);
+
+ return FALSE;
+}
+
+static void
+gimp_display_progress_canceled (GimpProgress *progress,
+ GimpDisplay *display)
+{
+ gimp_progress_cancel (GIMP_PROGRESS (display));
+}
+
+
+/* public functions */
+
+GimpDisplay *
+gimp_display_new (Gimp *gimp,
+ GimpImage *image,
+ GimpUnit unit,
+ gdouble scale,
+ GimpUIManager *popup_manager,
+ GimpDialogFactory *dialog_factory,
+ GdkScreen *screen,
+ gint monitor)
+{
+ GimpDisplay *display;
+ GimpDisplayPrivate *private;
+ GimpImageWindow *window = NULL;
+ GimpDisplayShell *shell;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+ g_return_val_if_fail (image == NULL || GIMP_IS_IMAGE (image), NULL);
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ /* If there isn't an interface, never create a display */
+ if (gimp->no_interface)
+ return NULL;
+
+ display = g_object_new (GIMP_TYPE_DISPLAY,
+ "gimp", gimp,
+ NULL);
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ /* refs the image */
+ if (image)
+ gimp_display_set_image (display, image);
+
+ /* get an image window */
+ if (GIMP_GUI_CONFIG (display->config)->single_window_mode)
+ {
+ GimpDisplay *active_display;
+
+ active_display = gimp_context_get_display (gimp_get_user_context (gimp));
+
+ if (! active_display)
+ {
+ active_display =
+ GIMP_DISPLAY (gimp_container_get_first_child (gimp->displays));
+ }
+
+ if (active_display)
+ {
+ GimpDisplayShell *shell = gimp_display_get_shell (active_display);
+
+ window = gimp_display_shell_get_window (shell);
+ }
+ }
+
+ if (! window)
+ {
+ window = gimp_image_window_new (gimp,
+ private->image,
+ dialog_factory,
+ screen,
+ monitor);
+ }
+
+ /* create the shell for the image */
+ private->shell = gimp_display_shell_new (display, unit, scale,
+ popup_manager,
+ screen,
+ monitor);
+
+ shell = gimp_display_get_shell (display);
+
+ gimp_display_update_bounding_box (display);
+
+ gimp_image_window_add_shell (window, shell);
+ gimp_display_shell_present (shell);
+
+ /* make sure the docks are visible, in case all other image windows
+ * are iconified, see bug #686544.
+ */
+ gimp_dialog_factory_show_with_display (dialog_factory);
+
+ g_signal_connect (gimp_display_shell_get_statusbar (shell), "cancel",
+ G_CALLBACK (gimp_display_progress_canceled),
+ display);
+
+ /* add the display to the list */
+ gimp_container_add (gimp->displays, GIMP_OBJECT (display));
+
+ return display;
+}
+
+/**
+ * gimp_display_delete:
+ * @display:
+ *
+ * Closes the display and removes it from the display list. You should
+ * not call this function directly, use gimp_display_close() instead.
+ */
+void
+gimp_display_delete (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+ GimpTool *active_tool;
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ /* remove the display from the list */
+ gimp_container_remove (display->gimp->displays, GIMP_OBJECT (display));
+
+ /* unrefs the image */
+ gimp_display_set_image (display, NULL);
+
+ active_tool = tool_manager_get_active (display->gimp);
+
+ if (active_tool && active_tool->focus_display == display)
+ tool_manager_focus_display_active (display->gimp, NULL);
+
+ if (private->shell)
+ {
+ GimpDisplayShell *shell = gimp_display_get_shell (display);
+ GimpImageWindow *window = gimp_display_shell_get_window (shell);
+
+ /* set private->shell to NULL *before* destroying the shell.
+ * all callbacks in gimpdisplayshell-callbacks.c will check
+ * this pointer and do nothing if the shell is in destruction.
+ */
+ private->shell = NULL;
+
+ if (window)
+ {
+ if (gimp_image_window_get_n_shells (window) > 1)
+ {
+ g_object_ref (shell);
+
+ gimp_image_window_remove_shell (window, shell);
+ gtk_widget_destroy (GTK_WIDGET (shell));
+
+ g_object_unref (shell);
+ }
+ else
+ {
+ gimp_image_window_destroy (window);
+ }
+ }
+ else
+ {
+ g_object_unref (shell);
+ }
+ }
+
+ g_object_unref (display);
+}
+
+/**
+ * gimp_display_close:
+ * @display:
+ *
+ * Closes the display. If this is the last display, it will remain
+ * open, but without an image.
+ */
+void
+gimp_display_close (GimpDisplay *display)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ if (gimp_container_get_n_children (display->gimp->displays) > 1)
+ {
+ gimp_display_delete (display);
+ }
+ else
+ {
+ gimp_display_empty (display);
+ }
+}
+
+gint
+gimp_display_get_ID (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), -1);
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ return private->ID;
+}
+
+GimpDisplay *
+gimp_display_get_by_ID (Gimp *gimp,
+ gint ID)
+{
+ GList *list;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplay *display = list->data;
+
+ if (gimp_display_get_ID (display) == ID)
+ return display;
+ }
+
+ return NULL;
+}
+
+/**
+ * gimp_display_get_action_name:
+ * @display:
+ *
+ * Returns: The action name for the given display. The action name
+ * depends on the display ID. The result must be freed with g_free().
+ **/
+gchar *
+gimp_display_get_action_name (GimpDisplay *display)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
+
+ return g_strdup_printf ("windows-display-%04d",
+ gimp_display_get_ID (display));
+}
+
+Gimp *
+gimp_display_get_gimp (GimpDisplay *display)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
+
+ return display->gimp;
+}
+
+GimpImage *
+gimp_display_get_image (GimpDisplay *display)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
+
+ return GIMP_DISPLAY_GET_PRIVATE (display)->image;
+}
+
+void
+gimp_display_set_image (GimpDisplay *display,
+ GimpImage *image)
+{
+ GimpDisplayPrivate *private;
+ GimpImage *old_image = NULL;
+ GimpDisplayShell *shell;
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+ g_return_if_fail (image == NULL || GIMP_IS_IMAGE (image));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ shell = gimp_display_get_shell (display);
+
+ if (private->image)
+ {
+ /* stop any active tool */
+ tool_manager_control_active (display->gimp, GIMP_TOOL_ACTION_HALT,
+ display);
+
+ gimp_display_shell_disconnect (shell);
+
+ gimp_display_disconnect (display);
+
+ g_clear_pointer (&private->update_region, cairo_region_destroy);
+
+ gimp_image_dec_display_count (private->image);
+
+ /* set private->image before unrefing because there may be code
+ * that listens for image removals and then iterates the
+ * display list to find a valid display.
+ */
+ old_image = private->image;
+
+#if 0
+ g_print ("%s: image->ref_count before unrefing: %d\n",
+ G_STRFUNC, G_OBJECT (old_image)->ref_count);
+#endif
+ }
+
+ private->image = image;
+
+ if (image)
+ {
+#if 0
+ g_print ("%s: image->ref_count before refing: %d\n",
+ G_STRFUNC, G_OBJECT (image)->ref_count);
+#endif
+
+ g_object_ref (image);
+
+ private->instance = gimp_image_get_instance_count (image);
+ gimp_image_inc_instance_count (image);
+
+ gimp_image_inc_display_count (image);
+
+ gimp_display_connect (display);
+
+ if (shell)
+ gimp_display_shell_connect (shell);
+ }
+
+ if (old_image)
+ g_object_unref (old_image);
+
+ gimp_display_update_bounding_box (display);
+
+ if (shell)
+ {
+ if (image)
+ {
+ gimp_display_shell_reconnect (shell);
+ }
+ else
+ {
+ gimp_display_shell_title_update (shell);
+ gimp_display_shell_icon_update (shell);
+ }
+ }
+
+ if (old_image != image)
+ g_object_notify (G_OBJECT (display), "image");
+}
+
+gint
+gimp_display_get_instance (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), 0);
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ return private->instance;
+}
+
+GimpDisplayShell *
+gimp_display_get_shell (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ return GIMP_DISPLAY_SHELL (private->shell);
+}
+
+void
+gimp_display_empty (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+ GList *iter;
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ g_return_if_fail (GIMP_IS_IMAGE (private->image));
+
+ for (iter = display->gimp->context_list; iter; iter = g_list_next (iter))
+ {
+ GimpContext *context = iter->data;
+
+ if (gimp_context_get_display (context) == display)
+ gimp_context_set_image (context, NULL);
+ }
+
+ gimp_display_set_image (display, NULL);
+
+ gimp_display_shell_empty (gimp_display_get_shell (display));
+}
+
+void
+gimp_display_fill (GimpDisplay *display,
+ GimpImage *image,
+ GimpUnit unit,
+ gdouble scale)
+{
+ GimpDisplayPrivate *private;
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+ g_return_if_fail (GIMP_IS_IMAGE (image));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ g_return_if_fail (private->image == NULL);
+
+ gimp_display_set_image (display, image);
+
+ gimp_display_shell_fill (gimp_display_get_shell (display),
+ image, unit, scale);
+}
+
+void
+gimp_display_update_bounding_box (GimpDisplay *display)
+{
+ GimpDisplayPrivate *private;
+ GimpDisplayShell *shell;
+ GeglRectangle bounding_box = {};
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+ shell = gimp_display_get_shell (display);
+
+ if (shell)
+ {
+ bounding_box = gimp_display_shell_get_bounding_box (shell);
+
+ if (! gegl_rectangle_equal (&bounding_box, &private->bounding_box))
+ {
+ GeglRectangle diff_rects[4];
+ gint n_diff_rects;
+ gint i;
+
+ n_diff_rects = gegl_rectangle_subtract (diff_rects,
+ &private->bounding_box,
+ &bounding_box);
+
+ for (i = 0; i < n_diff_rects; i++)
+ {
+ gimp_display_paint_area (display,
+ diff_rects[i].x, diff_rects[i].y,
+ diff_rects[i].width, diff_rects[i].height);
+ }
+
+ private->bounding_box = bounding_box;
+
+ gimp_display_shell_scroll_clamp_and_update (shell);
+ gimp_display_shell_scrollbars_update (shell);
+ }
+ }
+ else
+ {
+ private->bounding_box = bounding_box;
+ }
+}
+
+void
+gimp_display_update_area (GimpDisplay *display,
+ gboolean now,
+ gint x,
+ gint y,
+ gint w,
+ gint h)
+{
+ GimpDisplayPrivate *private;
+
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (now)
+ {
+ gimp_display_paint_area (display, x, y, w, h);
+ }
+ else
+ {
+ cairo_rectangle_int_t rect;
+ gint image_width;
+ gint image_height;
+
+ image_width = gimp_image_get_width (private->image);
+ image_height = gimp_image_get_height (private->image);
+
+ rect.x = CLAMP (x, 0, image_width);
+ rect.y = CLAMP (y, 0, image_height);
+ rect.width = CLAMP (x + w, 0, image_width) - rect.x;
+ rect.height = CLAMP (y + h, 0, image_height) - rect.y;
+
+ if (private->update_region)
+ cairo_region_union_rectangle (private->update_region, &rect);
+ else
+ private->update_region = cairo_region_create_rectangle (&rect);
+ }
+}
+
+void
+gimp_display_flush (GimpDisplay *display)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ /* FIXME: we can end up being called during shell construction if "show all"
+ * is enabled by default, in which case the shell's display pointer is still
+ * NULL
+ */
+ if (gimp_display_get_shell (display))
+ gimp_display_flush_whenever (display, FALSE);
+}
+
+void
+gimp_display_flush_now (GimpDisplay *display)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY (display));
+
+ gimp_display_flush_whenever (display, TRUE);
+}
+
+
+/* private functions */
+
+static void
+gimp_display_flush_whenever (GimpDisplay *display,
+ gboolean now)
+{
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+
+ if (private->update_region)
+ {
+ gint n_rects = cairo_region_num_rectangles (private->update_region);
+ gint i;
+
+ for (i = 0; i < n_rects; i++)
+ {
+ cairo_rectangle_int_t rect;
+
+ cairo_region_get_rectangle (private->update_region,
+ i, &rect);
+
+ gimp_display_paint_area (display,
+ rect.x,
+ rect.y,
+ rect.width,
+ rect.height);
+ }
+
+ g_clear_pointer (&private->update_region, cairo_region_destroy);
+ }
+
+ if (now)
+ {
+ guint64 now = g_get_monotonic_time ();
+
+ if ((now - private->last_flush_now) > FLUSH_NOW_INTERVAL)
+ {
+ gimp_display_shell_flush (gimp_display_get_shell (display), TRUE);
+
+ private->last_flush_now = now;
+ }
+ }
+ else
+ {
+ gimp_display_shell_flush (gimp_display_get_shell (display), now);
+ }
+}
+
+static void
+gimp_display_paint_area (GimpDisplay *display,
+ gint x,
+ gint y,
+ gint w,
+ gint h)
+{
+ GimpDisplayPrivate *private = GIMP_DISPLAY_GET_PRIVATE (display);
+ GimpDisplayShell *shell = gimp_display_get_shell (display);
+ GeglRectangle rect;
+ gint x1, y1, x2, y2;
+ gdouble x1_f, y1_f, x2_f, y2_f;
+
+ if (! gegl_rectangle_intersect (&rect,
+ &private->bounding_box,
+ GEGL_RECTANGLE (x, y, w, h)))
+ {
+ return;
+ }
+
+ /* display the area */
+ gimp_display_shell_transform_bounds (shell,
+ rect.x,
+ rect.y,
+ rect.x + rect.width,
+ rect.y + rect.height,
+ &x1_f, &y1_f, &x2_f, &y2_f);
+
+ /* make sure to expose a superset of the transformed sub-pixel expose
+ * area, not a subset. bug #126942. --mitch
+ *
+ * also accommodate for spill introduced by potential box filtering.
+ * (bug #474509). --simon
+ */
+ x1 = floor (x1_f - 0.5);
+ y1 = floor (y1_f - 0.5);
+ x2 = ceil (x2_f + 0.5);
+ y2 = ceil (y2_f + 0.5);
+
+ /* align transformed area to a coarse grid, to simplify the
+ * invalidated area
+ */
+ x1 = floor ((gdouble) x1 / PAINT_AREA_CHUNK_WIDTH) * PAINT_AREA_CHUNK_WIDTH;
+ y1 = floor ((gdouble) y1 / PAINT_AREA_CHUNK_HEIGHT) * PAINT_AREA_CHUNK_HEIGHT;
+ x2 = ceil ((gdouble) x2 / PAINT_AREA_CHUNK_WIDTH) * PAINT_AREA_CHUNK_WIDTH;
+ y2 = ceil ((gdouble) y2 / PAINT_AREA_CHUNK_HEIGHT) * PAINT_AREA_CHUNK_HEIGHT;
+
+ gimp_display_shell_expose_area (shell, x1, y1, x2 - x1, y2 - y1);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 14:30:00 +0000