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* Released under GNU GPL, read the file 'COPYING' for more information
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#include <glib/gtypes.h>
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#include <gdk/gdkevents.h>
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#include <gdk/gdkgc.h>
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#include <gtk/gtkobject.h>
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#include <gtk/gtkwidget.h>
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#include <libnr/nr-matrix.h>
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#include <libnr/nr-rect.h>
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#include <libnr/nr-rect-l.h>
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#include <gtk/gtklayout.h>
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#include <display/display-forward.h>
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SP_CANVAS_UPDATE_REQUESTED = 1 << 0,
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SP_CANVAS_UPDATE_AFFINE = 1 << 1
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SP_CANVAS_UPDATE_REQUESTED = 1 << 0,
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SP_CANVAS_UPDATE_AFFINE = 1 << 1
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* The canvas buf contains the actual pixels.
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struct SPCanvasBuf{
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/// Background color, given as 0xrrggbb
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/// Invariant: at least one of the following flags is true.
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/// Set when the render rectangle area is the solid color bg_color.
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unsigned int is_bg : 1;
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/// Set when the render rectangle area is represented by the buf.
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unsigned int is_buf : 1;
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/// Background color, given as 0xrrggbb
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// If empty, ignore contents of buffer and use a solid area of bg_color
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* An SPCanvasItem refers to a SPCanvas and to its parent item; it has
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* four coordinates, a bounding rectangle, and a transformation matrix.
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struct SPCanvasItem : public GtkObject{
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double x1, y1, x2, y2;
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struct SPCanvasItem : public GtkObject {
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double x1, y1, x2, y2;
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* The vtable of an SPCanvasItem.
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struct SPCanvasItemClass : public GtkObjectClass{
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void (* update) (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags);
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void (* render) (SPCanvasItem *item, SPCanvasBuf *buf);
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double (* point) (SPCanvasItem *item, NR::Point p, SPCanvasItem **actual_item);
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int (* event) (SPCanvasItem *item, GdkEvent *event);
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struct SPCanvasItemClass : public GtkObjectClass {
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void (* update) (SPCanvasItem *item, NR::Matrix const &affine, unsigned int flags);
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void (* render) (SPCanvasItem *item, SPCanvasBuf *buf);
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double (* point) (SPCanvasItem *item, NR::Point p, SPCanvasItem **actual_item);
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int (* event) (SPCanvasItem *item, GdkEvent *event);
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SPCanvasItem *sp_canvas_item_new (SPCanvasGroup *parent, GtkType type, const gchar *first_arg_name, ...);
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SPCanvasItem *sp_canvas_item_new(SPCanvasGroup *parent, GtkType type, const gchar *first_arg_name, ...);
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#define sp_canvas_item_set gtk_object_set
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void sp_canvas_item_affine_absolute (SPCanvasItem *item, NR::Matrix const &aff);
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void sp_canvas_item_affine_absolute(SPCanvasItem *item, NR::Matrix const &aff);
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void sp_canvas_item_raise (SPCanvasItem *item, int positions);
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void sp_canvas_item_lower (SPCanvasItem *item, int positions);
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void sp_canvas_item_show (SPCanvasItem *item);
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void sp_canvas_item_hide (SPCanvasItem *item);
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int sp_canvas_item_grab (SPCanvasItem *item, unsigned int event_mask, GdkCursor *cursor, guint32 etime);
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void sp_canvas_item_ungrab (SPCanvasItem *item, guint32 etime);
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void sp_canvas_item_raise(SPCanvasItem *item, int positions);
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void sp_canvas_item_lower(SPCanvasItem *item, int positions);
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void sp_canvas_item_show(SPCanvasItem *item);
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void sp_canvas_item_hide(SPCanvasItem *item);
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int sp_canvas_item_grab(SPCanvasItem *item, unsigned int event_mask, GdkCursor *cursor, guint32 etime);
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void sp_canvas_item_ungrab(SPCanvasItem *item, guint32 etime);
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NR::Matrix sp_canvas_item_i2w_affine(SPCanvasItem const *item);
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void sp_canvas_item_grab_focus (SPCanvasItem *item);
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void sp_canvas_item_grab_focus(SPCanvasItem *item);
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void sp_canvas_item_request_update (SPCanvasItem *item);
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void sp_canvas_item_request_update(SPCanvasItem *item);
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/* get item z-order in parent group */
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gint sp_canvas_item_order (SPCanvasItem * item);
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gint sp_canvas_item_order(SPCanvasItem * item);
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// SPCanvas -------------------------------------------------
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* Port of GnomeCanvas for inkscape needs.
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struct SPCanvas {
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/* Area that needs redrawing, stored as a microtile array */
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int tLeft,tTop,tRight,tBottom;
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/* Last known modifier state, for deferred repick when a button is down */
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/* The item containing the mouse pointer, or NULL if none */
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SPCanvasItem *current_item;
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/* Item that is about to become current (used to track deletions and such) */
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SPCanvasItem *new_current_item;
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/* Item that holds a pointer grab, or NULL if none */
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SPCanvasItem *grabbed_item;
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/* Event mask specified when grabbing an item */
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guint grabbed_event_mask;
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/* If non-NULL, the currently focused item */
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SPCanvasItem *focused_item;
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/* Event on which selection of current item is based */
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/* GC for temporary draw pixmap */
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unsigned int need_update : 1;
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unsigned int need_redraw : 1;
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unsigned int need_repick : 1;
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/* For use by internal pick_current_item() function */
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unsigned int left_grabbed_item : 1;
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/* For use by internal pick_current_item() function */
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unsigned int in_repick : 1;
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/* Area that needs redrawing, stored as a microtile array */
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int tLeft,tTop,tRight,tBottom;
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/* Last known modifier state, for deferred repick when a button is down */
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/* The item containing the mouse pointer, or NULL if none */
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SPCanvasItem *current_item;
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/* Item that is about to become current (used to track deletions and such) */
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SPCanvasItem *new_current_item;
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/* Item that holds a pointer grab, or NULL if none */
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SPCanvasItem *grabbed_item;
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/* Event mask specified when grabbing an item */
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guint grabbed_event_mask;
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/* If non-NULL, the currently focused item */
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SPCanvasItem *focused_item;
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/* Event on which selection of current item is based */
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/* GC for temporary draw pixmap */
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unsigned int need_update : 1;
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unsigned int need_redraw : 1;
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unsigned int need_repick : 1;
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/* For use by internal pick_current_item() function */
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unsigned int left_grabbed_item : 1;
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/* For use by internal pick_current_item() function */
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unsigned int in_repick : 1;
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// In most tools Inkscape only generates enter and leave events
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// on the current item, but no other enter events if a mouse button
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// is depressed -- see function pick_current_item(). Some tools
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// may wish the canvas to generate to all enter events, (e.g., the
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// connector tool). If so, they may temporarily set this flag to
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bool gen_all_enter_events;
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NR::Rect getViewbox() const;
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GtkWidget *sp_canvas_new_aa (void);
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SPCanvasGroup *sp_canvas_root (SPCanvas *canvas);
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void sp_canvas_scroll_to (SPCanvas *canvas, double cx, double cy, unsigned int clear);
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void sp_canvas_update_now (SPCanvas *canvas);
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void sp_canvas_request_redraw (SPCanvas *canvas, int x1, int y1, int x2, int y2);
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GtkWidget *sp_canvas_new_aa();
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SPCanvasGroup *sp_canvas_root(SPCanvas *canvas);
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void sp_canvas_scroll_to(SPCanvas *canvas, double cx, double cy, unsigned int clear);
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void sp_canvas_update_now(SPCanvas *canvas);
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void sp_canvas_request_redraw(SPCanvas *canvas, int x1, int y1, int x2, int y2);
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void sp_canvas_window_to_world(SPCanvas const *canvas, double winx, double winy, double *worldx, double *worldy);
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void sp_canvas_world_to_window(SPCanvas const *canvas, double worldx, double worldy, double *winx, double *winy);
added
removed
src/display/sp-canvas.h
