f089ed69d7
This commit prevents the on-canvas text editor from being dragged outside the image bounds by checking the overlay's position and adjusting the coordinates to keep it within the canvas. Additionally, it checks whether the overlay is entirely outside the canvas and, if so, pushes it back inside.
375 lines
18 KiB
C
375 lines
18 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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/* Apply to a float the same rounding mode used in the renderer */
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#define PROJ_ROUND(coord) ((gint) RINT (coord))
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#define PROJ_ROUND64(coord) ((gint64) RINT (coord))
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/* scale values */
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#define SCALEX(s,x) PROJ_ROUND ((x) * (s)->scale_x)
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#define SCALEY(s,y) PROJ_ROUND ((y) * (s)->scale_y)
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/* unscale values */
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#define UNSCALEX(s,x) ((gint) ((x) / (s)->scale_x))
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#define UNSCALEY(s,y) ((gint) ((y) / (s)->scale_y))
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/* (and float-returning versions) */
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#define FUNSCALEX(s,x) ((x) / (s)->scale_x)
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#define FUNSCALEY(s,y) ((y) / (s)->scale_y)
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#define GIMP_TYPE_DISPLAY_SHELL (gimp_display_shell_get_type ())
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#define GIMP_DISPLAY_SHELL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShell))
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#define GIMP_DISPLAY_SHELL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShellClass))
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#define GIMP_IS_DISPLAY_SHELL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_DISPLAY_SHELL))
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#define GIMP_IS_DISPLAY_SHELL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_DISPLAY_SHELL))
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#define GIMP_DISPLAY_SHELL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DISPLAY_SHELL, GimpDisplayShellClass))
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typedef struct _GimpDisplayShellClass GimpDisplayShellClass;
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typedef struct _GimpDisplayShellPrivate GimpDisplayShellPrivate;
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struct _GimpDisplayShell
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{
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GtkEventBox parent_instance;
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GimpDisplay *display;
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GBytes *window_handle;
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GimpUIManager *popup_manager;
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GimpDisplayOptions *options;
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GimpDisplayOptions *fullscreen_options;
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GimpDisplayOptions *no_image_options;
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GimpUnit *unit;
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gint offset_x; /* offset of display image */
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gint offset_y;
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gdouble scale_x; /* horizontal scale factor */
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gdouble scale_y; /* vertical scale factor */
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gboolean flip_horizontally;
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gboolean flip_vertically;
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gdouble rotate_angle;
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cairo_matrix_t *rotate_transform;
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cairo_matrix_t *rotate_untransform;
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gdouble monitor_xres;
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gdouble monitor_yres;
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gboolean dot_for_dot; /* ignore monitor resolution */
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GimpZoomModel *zoom;
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gdouble last_scale; /* scale used when reverting zoom */
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guint last_scale_time; /* time when last_scale was set */
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gint last_offset_x; /* offsets used when reverting zoom */
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gint last_offset_y;
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gint disp_width; /* width of drawing area */
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gint disp_height; /* height of drawing area */
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gboolean proximity; /* is a device in proximity */
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gboolean show_image; /* whether to show the image */
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gboolean show_all; /* show the entire image */
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Selection *selection; /* Selection (marching ants) */
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gint64 selection_update; /* Last selection index update */
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GList *children;
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GtkWidget *canvas; /* GimpCanvas widget */
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GtkGesture *zoom_gesture; /* Zoom gesture handler for the canvas*/
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GtkGesture *rotate_gesture; /* Rotation gesture handler */
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GtkAdjustment *hsbdata; /* adjustments */
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GtkAdjustment *vsbdata;
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GtkWidget *hsb; /* scroll bars */
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GtkWidget *vsb;
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GtkWidget *hrule; /* rulers */
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GtkWidget *vrule;
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GtkWidget *origin; /* NW: origin */
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GtkWidget *quick_mask_button;/* SW: quick mask button */
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GtkWidget *zoom_button; /* NE: zoom toggle button */
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GtkWidget *nav_ebox; /* SE: navigation event box */
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GtkWidget *statusbar; /* statusbar */
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GimpCanvasItem *canvas_item; /* items drawn on the canvas */
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GimpCanvasItem *unrotated_item; /* unrotated items for e.g. cursor */
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GimpCanvasItem *passe_partout; /* item for the highlight */
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GimpCanvasItem *preview_items; /* item for previews */
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GimpCanvasItem *paths; /* item proxy of paths */
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GimpCanvasItem *grid; /* item proxy of the grid */
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GimpCanvasItem *guides; /* item proxies of guides */
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GimpCanvasItem *sample_points; /* item proxies of sample points */
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GimpCanvasItem *canvas_boundary; /* item for the cabvas boundary */
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GimpCanvasItem *layer_boundary; /* item for the layer boundary */
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GimpCanvasItem *tool_items; /* tools items, below the cursor */
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GimpCanvasItem *cursor; /* item for the software cursor */
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guint title_idle_id; /* title update idle ID */
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gchar *title; /* current title */
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gchar *status; /* current default statusbar content */
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guint fill_idle_id; /* display_shell_fill() idle ID */
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GimpHandedness cursor_handedness;/* Handedness for cursor display */
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GimpCursorType current_cursor; /* Currently installed main cursor */
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GimpToolCursorType tool_cursor; /* Current Tool cursor */
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GimpCursorModifier cursor_modifier; /* Cursor modifier (plus, minus, ...) */
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GimpCursorType override_cursor; /* Overriding cursor */
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gboolean using_override_cursor;
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gboolean draw_cursor; /* should we draw software cursor ? */
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GtkWidget *close_dialog; /* close dialog */
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GtkWidget *scale_dialog; /* scale (zoom) dialog */
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GtkWidget *rotate_dialog; /* rotate dialog */
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GtkWidget *nav_popup; /* navigation popup */
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GimpColorConfig *color_config; /* color management settings */
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gboolean color_config_set; /* settings changed from defaults */
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GimpColorTransform *profile_transform;
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GeglBuffer *profile_buffer; /* buffer for profile transform */
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guchar *profile_data; /* profile_buffer's pixels */
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gint profile_stride; /* profile_buffer's stride */
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GimpColorDisplayStack *filter_stack; /* color display conversion stuff */
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guint filter_idle_id;
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GimpColorTransform *filter_transform;
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const Babl *filter_format; /* filter_buffer's format */
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GimpColorProfile *filter_profile; /* filter_format's profile */
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GeglBuffer *filter_buffer; /* buffer for display filters */
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guchar *filter_data; /* filter_buffer's pixels */
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gint filter_stride; /* filter_buffer's stride */
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gint render_scale;
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cairo_surface_t *render_cache;
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cairo_region_t *render_cache_valid;
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gint render_buf_width;
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gint render_buf_height;
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cairo_surface_t *render_surface; /* buffer for rendering the mask */
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cairo_surface_t *mask_surface; /* buffer for rendering the mask */
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cairo_pattern_t *checkerboard; /* checkerboard pattern */
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gint paused_count;
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GimpTreeHandler *path_freeze_handler;
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GimpTreeHandler *path_thaw_handler;
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GimpTreeHandler *path_visible_handler;
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gboolean zoom_on_resize;
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gboolean size_allocate_from_configure_event;
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gboolean size_allocate_center_image;
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/* the state of gimp_display_shell_tool_events() */
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GdkSeat *grab_seat;
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GdkDevice *grab_pointer;
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GdkDevice *grab_pointer_source;
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/* the state of gimp_display_shell_zoom_gesture_*() */
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gdouble last_zoom_scale;
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gboolean zoom_gesture_active;
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/* the state of gimp_display_shell_rotate_gesture_*() */
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guint last_gesture_rotate_state;
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gdouble initial_gesture_rotate_angle;
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gboolean rotate_gesture_active;
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/* Two states are possible when the shell is grabbed: it can be
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* grabbed with space (or space+button1 which is the same state),
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* then if space is released but button1 was still pressed, we wait
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* for button1 to be released as well.
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*/
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gboolean space_release_pending;
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gboolean button1_release_pending;
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const gchar *space_shaded_tool;
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/* Modifier action currently ON. */
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GimpModifierAction mod_action;
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gchar *mod_action_desc;
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gint scroll_start_x;
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gint scroll_start_y;
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gint scroll_last_x;
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gint scroll_last_y;
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gdouble rotate_drag_angle;
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gpointer scroll_info;
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GimpLayer *picked_layer;
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GeglBuffer *mask;
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gint mask_offset_x;
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gint mask_offset_y;
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GeglColor *mask_color;
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gboolean mask_inverted;
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GimpMotionBuffer *motion_buffer;
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GdkPoint *zoom_focus_point;
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gboolean blink;
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guint blink_timeout_id;
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GimpAlignmentType snapped_side_horizontal; /* if GIMP_ARRANGE_HFILL then no snapping happen */
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GimpLayer *snapped_layer_horizontal;
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GimpAlignmentType snapped_side_vertical; /* if GIMP_ARRANGE_HFILL then no snapping happen */
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GimpLayer *snapped_layer_vertical;
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GimpAlignmentType equidistance_side_horizontal;
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GimpLayer *near_layer_horizontal1;
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GimpLayer *near_layer_horizontal2;
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GimpAlignmentType equidistance_side_vertical;
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GimpLayer *near_layer_vertical1;
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GimpLayer *near_layer_vertical2;
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gboolean drawn;
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GimpDisplayShellPrivate *priv;
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};
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struct _GimpDisplayShellClass
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{
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GtkEventBoxClass parent_class;
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void (* scaled) (GimpDisplayShell *shell);
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void (* scrolled) (GimpDisplayShell *shell);
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void (* rotated) (GimpDisplayShell *shell);
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void (* reconnect) (GimpDisplayShell *shell);
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};
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GType gimp_display_shell_get_type (void) G_GNUC_CONST;
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GtkWidget * gimp_display_shell_new (GimpDisplay *display,
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GimpUnit *unit,
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gdouble scale,
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GimpUIManager *popup_manager,
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GdkMonitor *monitor);
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void gimp_display_shell_add_overlay (GimpDisplayShell *shell,
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GtkWidget *child,
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gdouble image_x,
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gdouble image_y,
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GimpHandleAnchor anchor,
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gint spacing_x,
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gint spacing_y);
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void gimp_display_shell_move_overlay (GimpDisplayShell *shell,
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GtkWidget *child,
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gdouble image_x,
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gdouble image_y,
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GimpHandleAnchor anchor,
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gint spacing_x,
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gint spacing_y);
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GimpImageWindow * gimp_display_shell_get_window (GimpDisplayShell *shell);
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GimpStatusbar * gimp_display_shell_get_statusbar (GimpDisplayShell *shell);
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GimpColorConfig * gimp_display_shell_get_color_config
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(GimpDisplayShell *shell);
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void gimp_display_shell_present (GimpDisplayShell *shell);
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void gimp_display_shell_reconnect (GimpDisplayShell *shell);
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void gimp_display_shell_empty (GimpDisplayShell *shell);
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void gimp_display_shell_fill (GimpDisplayShell *shell,
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GimpImage *image,
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GimpUnit *unit,
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gdouble scale);
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void gimp_display_shell_scaled (GimpDisplayShell *shell);
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void gimp_display_shell_scrolled (GimpDisplayShell *shell);
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void gimp_display_shell_rotated (GimpDisplayShell *shell);
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void gimp_display_shell_set_unit (GimpDisplayShell *shell,
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GimpUnit *unit);
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GimpUnit * gimp_display_shell_get_unit (GimpDisplayShell *shell);
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gboolean gimp_display_shell_snap_coords (GimpDisplayShell *shell,
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GimpCoords *coords,
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gint snap_offset_x,
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gint snap_offset_y,
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gint snap_width,
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gint snap_height);
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gboolean gimp_display_shell_mask_bounds (GimpDisplayShell *shell,
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gint *x,
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gint *y,
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gint *width,
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gint *height);
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void gimp_display_shell_set_show_image
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(GimpDisplayShell *shell,
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gboolean show_image);
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void gimp_display_shell_set_show_all (GimpDisplayShell *shell,
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gboolean show_all);
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GimpPickable * gimp_display_shell_get_pickable (GimpDisplayShell *shell);
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GimpPickable * gimp_display_shell_get_canvas_pickable
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(GimpDisplayShell *shell);
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GeglRectangle gimp_display_shell_get_bounding_box
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(GimpDisplayShell *shell);
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gboolean gimp_display_shell_get_infinite_canvas
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(GimpDisplayShell *shell);
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void gimp_display_shell_update_priority_rect
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(GimpDisplayShell *shell);
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void gimp_display_shell_flush (GimpDisplayShell *shell);
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void gimp_display_shell_pause (GimpDisplayShell *shell);
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void gimp_display_shell_resume (GimpDisplayShell *shell);
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void gimp_display_shell_set_highlight (GimpDisplayShell *shell,
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const GdkRectangle *highlight,
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double opacity);
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void gimp_display_shell_set_mask (GimpDisplayShell *shell,
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GeglBuffer *mask,
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gint offset_x,
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gint offset_y,
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GeglColor *color,
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gboolean inverted);
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gboolean gimp_display_shell_is_drawn (GimpDisplayShell *shell);
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void gimp_display_shell_get_overlay_corners
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(GimpDisplayShell *shell,
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GtkWidget *child,
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gdouble image_x,
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gdouble image_y,
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gdouble *top_left_x,
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gdouble *top_left_y,
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gdouble *bottom_right_x,
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gdouble *bottom_right_y);
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