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-rw-r--r--app/display/gimpdisplayshell-cursor.c295
1 files changed, 295 insertions, 0 deletions
diff --git a/app/display/gimpdisplayshell-cursor.c b/app/display/gimpdisplayshell-cursor.c
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+++ b/app/display/gimpdisplayshell-cursor.c
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+/* 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 "display-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimpimage.h"
+
+#include "widgets/gimpcursor.h"
+#include "widgets/gimpdialogfactory.h"
+#include "widgets/gimpdockcontainer.h"
+#include "widgets/gimpsessioninfo.h"
+
+#include "gimpcanvascursor.h"
+#include "gimpdisplay.h"
+#include "gimpcursorview.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-cursor.h"
+#include "gimpdisplayshell-transform.h"
+#include "gimpstatusbar.h"
+
+
+static void gimp_display_shell_real_set_cursor (GimpDisplayShell *shell,
+ GimpCursorType cursor_type,
+ GimpToolCursorType tool_cursor,
+ GimpCursorModifier modifier,
+ gboolean always_install);
+
+
+/* public functions */
+
+void
+gimp_display_shell_set_cursor (GimpDisplayShell *shell,
+ GimpCursorType cursor_type,
+ GimpToolCursorType tool_cursor,
+ GimpCursorModifier modifier)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (! shell->using_override_cursor)
+ {
+ gimp_display_shell_real_set_cursor (shell,
+ cursor_type,
+ tool_cursor,
+ modifier,
+ FALSE);
+ }
+}
+
+void
+gimp_display_shell_unset_cursor (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (! shell->using_override_cursor)
+ {
+ gimp_display_shell_real_set_cursor (shell,
+ (GimpCursorType) -1, 0, 0, FALSE);
+ }
+}
+
+void
+gimp_display_shell_set_override_cursor (GimpDisplayShell *shell,
+ GimpCursorType cursor_type)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (! shell->using_override_cursor ||
+ (shell->using_override_cursor &&
+ shell->override_cursor != cursor_type))
+ {
+ shell->override_cursor = cursor_type;
+ shell->using_override_cursor = TRUE;
+
+ gimp_cursor_set (shell->canvas,
+ shell->cursor_handedness,
+ cursor_type,
+ GIMP_TOOL_CURSOR_NONE,
+ GIMP_CURSOR_MODIFIER_NONE);
+ }
+}
+
+void
+gimp_display_shell_unset_override_cursor (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (shell->using_override_cursor)
+ {
+ shell->using_override_cursor = FALSE;
+
+ gimp_display_shell_real_set_cursor (shell,
+ shell->current_cursor,
+ shell->tool_cursor,
+ shell->cursor_modifier,
+ TRUE);
+ }
+}
+
+void
+gimp_display_shell_update_software_cursor (GimpDisplayShell *shell,
+ GimpCursorPrecision precision,
+ gint display_x,
+ gint display_y,
+ gdouble image_x,
+ gdouble image_y)
+{
+ GimpImageWindow *image_window;
+ GimpDialogFactory *factory;
+ GimpStatusbar *statusbar;
+ GtkWidget *widget;
+ GimpImage *image;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ image = gimp_display_get_image (shell->display);
+
+ if (shell->draw_cursor &&
+ shell->proximity &&
+ display_x >= 0 &&
+ display_y >= 0)
+ {
+ gimp_canvas_item_begin_change (shell->cursor);
+
+ gimp_canvas_cursor_set (shell->cursor,
+ display_x,
+ display_y);
+ gimp_canvas_item_set_visible (shell->cursor, TRUE);
+
+ gimp_canvas_item_end_change (shell->cursor);
+ }
+ else
+ {
+ gimp_canvas_item_set_visible (shell->cursor, FALSE);
+ }
+
+ /* use the passed image_coords for the statusbar because they are
+ * possibly snapped...
+ */
+ statusbar = gimp_display_shell_get_statusbar (shell);
+
+ gimp_statusbar_update_cursor (statusbar, precision, image_x, image_y);
+
+ image_window = gimp_display_shell_get_window (shell);
+ factory = gimp_dock_container_get_dialog_factory (GIMP_DOCK_CONTAINER (image_window));
+
+ widget = gimp_dialog_factory_find_widget (factory, "gimp-cursor-view");
+
+ if (widget)
+ {
+ GtkWidget *cursor_view = gtk_bin_get_child (GTK_BIN (widget));
+
+ if (cursor_view)
+ {
+ gint t_x = -1;
+ gint t_y = -1;
+
+ /* ...but use the unsnapped display_coords for the info window */
+ if (display_x >= 0 && display_y >= 0)
+ gimp_display_shell_untransform_xy (shell, display_x, display_y,
+ &t_x, &t_y, FALSE);
+
+ gimp_cursor_view_update_cursor (GIMP_CURSOR_VIEW (cursor_view),
+ image, shell->unit,
+ t_x, t_y);
+ }
+ }
+}
+
+void
+gimp_display_shell_clear_software_cursor (GimpDisplayShell *shell)
+{
+ GimpImageWindow *image_window;
+ GimpDialogFactory *factory;
+ GimpStatusbar *statusbar;
+ GtkWidget *widget;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ gimp_canvas_item_set_visible (shell->cursor, FALSE);
+
+ statusbar = gimp_display_shell_get_statusbar (shell);
+
+ gimp_statusbar_clear_cursor (statusbar);
+
+ image_window = gimp_display_shell_get_window (shell);
+ factory = gimp_dock_container_get_dialog_factory (GIMP_DOCK_CONTAINER (image_window));
+
+ widget = gimp_dialog_factory_find_widget (factory, "gimp-cursor-view");
+
+ if (widget)
+ {
+ GtkWidget *cursor_view = gtk_bin_get_child (GTK_BIN (widget));
+
+ if (cursor_view)
+ gimp_cursor_view_clear_cursor (GIMP_CURSOR_VIEW (cursor_view));
+ }
+}
+
+
+/* private functions */
+
+static void
+gimp_display_shell_real_set_cursor (GimpDisplayShell *shell,
+ GimpCursorType cursor_type,
+ GimpToolCursorType tool_cursor,
+ GimpCursorModifier modifier,
+ gboolean always_install)
+{
+ GimpHandedness cursor_handedness;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (cursor_type == (GimpCursorType) -1)
+ {
+ shell->current_cursor = cursor_type;
+
+ if (gtk_widget_is_drawable (shell->canvas))
+ gdk_window_set_cursor (gtk_widget_get_window (shell->canvas), NULL);
+
+ return;
+ }
+
+ if (cursor_type != GIMP_CURSOR_NONE &&
+ cursor_type != GIMP_CURSOR_BAD)
+ {
+ switch (shell->display->config->cursor_mode)
+ {
+ case GIMP_CURSOR_MODE_TOOL_ICON:
+ break;
+
+ case GIMP_CURSOR_MODE_TOOL_CROSSHAIR:
+ if (cursor_type < GIMP_CURSOR_CORNER_TOP ||
+ cursor_type > GIMP_CURSOR_SIDE_TOP_LEFT)
+ {
+ /* the corner and side cursors count as crosshair, so leave
+ * them and override everything else
+ */
+ cursor_type = GIMP_CURSOR_CROSSHAIR_SMALL;
+ }
+ break;
+
+ case GIMP_CURSOR_MODE_CROSSHAIR:
+ cursor_type = GIMP_CURSOR_CROSSHAIR;
+ tool_cursor = GIMP_TOOL_CURSOR_NONE;
+
+ if (modifier != GIMP_CURSOR_MODIFIER_BAD)
+ {
+ /* the bad modifier is always shown */
+ modifier = GIMP_CURSOR_MODIFIER_NONE;
+ }
+ break;
+ }
+ }
+
+ cursor_type = gimp_cursor_rotate (cursor_type, shell->rotate_angle);
+
+ cursor_handedness = GIMP_GUI_CONFIG (shell->display->config)->cursor_handedness;
+
+ if (shell->cursor_handedness != cursor_handedness ||
+ shell->current_cursor != cursor_type ||
+ shell->tool_cursor != tool_cursor ||
+ shell->cursor_modifier != modifier ||
+ always_install)
+ {
+ shell->cursor_handedness = cursor_handedness;
+ shell->current_cursor = cursor_type;
+ shell->tool_cursor = tool_cursor;
+ shell->cursor_modifier = modifier;
+
+ gimp_cursor_set (shell->canvas,
+ cursor_handedness,
+ cursor_type, tool_cursor, modifier);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 17:20:48 +0000