diff options
Diffstat (limited to 'src/star-context.cpp')
| -rw-r--r-- | src/star-context.cpp | 551 |
1 files changed, 0 insertions, 551 deletions
diff --git a/src/star-context.cpp b/src/star-context.cpp deleted file mode 100644 index 3520bdb53..000000000 --- a/src/star-context.cpp +++ /dev/null @@ -1,551 +0,0 @@ -/* - * Star drawing context - * - * Authors: - * Mitsuru Oka <oka326@parkcity.ne.jp> - * Lauris Kaplinski <lauris@kaplinski.com> - * bulia byak <buliabyak@users.sf.net> - * Jon A. Cruz <jon@joncruz.org> - * Abhishek Sharma - * - * Copyright (C) 1999-2002 Lauris Kaplinski - * Copyright (C) 2001-2002 Mitsuru Oka - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include <cstring> -#include <string> - -#include <gdk/gdkkeysyms.h> - -#include "macros.h" -#include "display/sp-canvas.h" -#include "sp-star.h" -#include "document.h" -#include "document-undo.h" -#include "sp-namedview.h" -#include "selection.h" -#include "desktop-handles.h" -#include "snap.h" -#include "desktop.h" -#include "desktop-style.h" -#include "message-context.h" -#include "pixmaps/cursor-star.xpm" -#include "sp-metrics.h" -#include <glibmm/i18n.h> -#include "preferences.h" -#include "xml/repr.h" -#include "xml/node-event-vector.h" -#include "object-edit.h" -#include "context-fns.h" -#include "shape-editor.h" -#include "verbs.h" -#include "display/sp-canvas-item.h" - -#include "star-context.h" - -#if !GTK_CHECK_VERSION(2,22,0) -#include "compat-key-syms.h" -#endif - -using Inkscape::DocumentUndo; - -static void sp_star_context_class_init (SPStarContextClass * klass); -static void sp_star_context_init (SPStarContext * star_context); -static void sp_star_context_dispose (GObject *object); - -static void sp_star_context_setup (SPEventContext *ec); -static void sp_star_context_finish(SPEventContext *ec); -static void sp_star_context_set (SPEventContext *ec, Inkscape::Preferences::Entry *val); -static gint sp_star_context_root_handler (SPEventContext *ec, GdkEvent *event); - -static void sp_star_drag (SPStarContext * sc, Geom::Point p, guint state); -static void sp_star_finish (SPStarContext * sc); -static void sp_star_cancel(SPStarContext * sc); - -static SPEventContextClass * parent_class; - -GType -sp_star_context_get_type (void) -{ - static GType type = 0; - if (!type) { - GTypeInfo info = { - sizeof (SPStarContextClass), - NULL, NULL, - (GClassInitFunc) sp_star_context_class_init, - NULL, NULL, - sizeof (SPStarContext), - 4, - (GInstanceInitFunc) sp_star_context_init, - NULL, /* value_table */ - }; - type = g_type_register_static (SP_TYPE_EVENT_CONTEXT, "SPStarContext", &info, (GTypeFlags)0); - } - return type; -} - -static void -sp_star_context_class_init (SPStarContextClass * klass) -{ - GObjectClass *object_class = (GObjectClass *) klass; - SPEventContextClass *event_context_class = (SPEventContextClass *) klass; - - parent_class = (SPEventContextClass*)g_type_class_peek_parent (klass); - - object_class->dispose = sp_star_context_dispose; - - event_context_class->setup = sp_star_context_setup; - event_context_class->finish = sp_star_context_finish; - event_context_class->set = sp_star_context_set; - event_context_class->root_handler = sp_star_context_root_handler; -} - -static void -sp_star_context_init (SPStarContext * star_context) -{ - SPEventContext *event_context = SP_EVENT_CONTEXT (star_context); - - event_context->cursor_shape = cursor_star_xpm; - event_context->hot_x = 4; - event_context->hot_y = 4; - event_context->xp = 0; - event_context->yp = 0; - event_context->tolerance = 0; - event_context->within_tolerance = false; - event_context->item_to_select = NULL; - event_context->tool_url = "/tools/shapes/star"; - - star_context->item = NULL; - - star_context->magnitude = 5; - star_context->proportion = 0.5; - star_context->isflatsided = false; - - new (&star_context->sel_changed_connection) sigc::connection(); -} - -static void sp_star_context_finish(SPEventContext *ec) -{ - SPStarContext *sc = SP_STAR_CONTEXT(ec); - SPDesktop *desktop = ec->desktop; - - sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), GDK_CURRENT_TIME); - sp_star_finish(sc); - sc->sel_changed_connection.disconnect(); - - if (((SPEventContextClass *) parent_class)->finish) { - ((SPEventContextClass *) parent_class)->finish(ec); - } -} - - -static void -sp_star_context_dispose (GObject *object) -{ - SPEventContext *ec = SP_EVENT_CONTEXT (object); - SPStarContext *sc = SP_STAR_CONTEXT (object); - - ec->enableGrDrag(false); - - sc->sel_changed_connection.disconnect(); - sc->sel_changed_connection.~connection(); - - delete ec->shape_editor; - ec->shape_editor = NULL; - - /* fixme: This is necessary because we do not grab */ - if (sc->item) sp_star_finish (sc); - - if (sc->_message_context) { - delete sc->_message_context; - } - - G_OBJECT_CLASS (parent_class)->dispose (object); -} - -/** - * Callback that processes the "changed" signal on the selection; - * destroys old and creates new knotholder. - * - * @param selection Should not be NULL. - */ -void sp_star_context_selection_changed (Inkscape::Selection * selection, gpointer data) -{ - g_assert (selection != NULL); - - SPStarContext *sc = SP_STAR_CONTEXT (data); - SPEventContext *ec = SP_EVENT_CONTEXT (sc); - - ec->shape_editor->unset_item(SH_KNOTHOLDER); - SPItem *item = selection->singleItem(); - ec->shape_editor->set_item(item, SH_KNOTHOLDER); -} - -static void -sp_star_context_setup (SPEventContext *ec) -{ - SPStarContext *sc = SP_STAR_CONTEXT (ec); - - if (((SPEventContextClass *) parent_class)->setup) - ((SPEventContextClass *) parent_class)->setup (ec); - - sp_event_context_read (ec, "magnitude"); - sp_event_context_read (ec, "proportion"); - sp_event_context_read (ec, "isflatsided"); - sp_event_context_read (ec, "rounded"); - sp_event_context_read (ec, "randomized"); - - ec->shape_editor = new ShapeEditor(ec->desktop); - - SPItem *item = sp_desktop_selection(ec->desktop)->singleItem(); - if (item) { - ec->shape_editor->set_item(item, SH_KNOTHOLDER); - } - - Inkscape::Selection *selection = sp_desktop_selection(ec->desktop); - sc->sel_changed_connection.disconnect(); - sc->sel_changed_connection = selection->connectChanged(sigc::bind(sigc::ptr_fun(&sp_star_context_selection_changed), (gpointer)sc)); - - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - if (prefs->getBool("/tools/shapes/selcue")) { - ec->enableSelectionCue(); - } - - if (prefs->getBool("/tools/shapes/gradientdrag")) { - ec->enableGrDrag(); - } - - sc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack()); -} - -static void -sp_star_context_set (SPEventContext *ec, Inkscape::Preferences::Entry *val) -{ - SPStarContext *sc = SP_STAR_CONTEXT (ec); - Glib::ustring path = val->getEntryName(); - - if (path == "magnitude") { - sc->magnitude = CLAMP(val->getInt(5), 3, 1024); - } else if (path == "proportion") { - sc->proportion = CLAMP(val->getDouble(0.5), 0.01, 2.0); - } else if (path == "isflatsided") { - sc->isflatsided = val->getBool(); - } else if (path == "rounded") { - sc->rounded = val->getDouble(); - } else if (path == "randomized") { - sc->randomized = val->getDouble(); - } -} - -static gint sp_star_context_root_handler(SPEventContext *event_context, GdkEvent *event) -{ - static gboolean dragging; - - SPDesktop *desktop = event_context->desktop; - Inkscape::Selection *selection = sp_desktop_selection (desktop); - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - SPStarContext *sc = SP_STAR_CONTEXT (event_context); - - event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100); - - gint ret = FALSE; - - switch (event->type) { - case GDK_BUTTON_PRESS: - if (event->button.button == 1 && !event_context->space_panning) { - - dragging = TRUE; - - sc->center = Inkscape::setup_for_drag_start(desktop, event_context, event); - - /* Snap center */ - SnapManager &m = desktop->namedview->snap_manager; - m.setup(desktop, true); - m.freeSnapReturnByRef(sc->center, Inkscape::SNAPSOURCE_NODE_HANDLE); - m.unSetup(); - sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate), - GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | - GDK_POINTER_MOTION_MASK | - GDK_POINTER_MOTION_HINT_MASK | - GDK_BUTTON_PRESS_MASK, - NULL, event->button.time); - ret = TRUE; - } - break; - case GDK_MOTION_NOTIFY: - if (dragging && (event->motion.state & GDK_BUTTON1_MASK) && !event_context->space_panning) { - - if ( event_context->within_tolerance - && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance ) - && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) { - break; // do not drag if we're within tolerance from origin - } - // Once the user has moved farther than tolerance from the original location - // (indicating they intend to draw, not click), then always process the - // motion notify coordinates as given (no snapping back to origin) - event_context->within_tolerance = false; - - Geom::Point const motion_w(event->motion.x, event->motion.y); - Geom::Point motion_dt(desktop->w2d(motion_w)); - - sp_star_drag (sc, motion_dt, event->motion.state); - - gobble_motion_events(GDK_BUTTON1_MASK); - - ret = TRUE; - } else if (!sp_event_context_knot_mouseover(event_context)) { - SnapManager &m = desktop->namedview->snap_manager; - m.setup(desktop); - - Geom::Point const motion_w(event->motion.x, event->motion.y); - Geom::Point motion_dt(desktop->w2d(motion_w)); - - m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_NODE_HANDLE)); - m.unSetup(); - } - break; - case GDK_BUTTON_RELEASE: - event_context->xp = event_context->yp = 0; - if (event->button.button == 1 && !event_context->space_panning) { - dragging = FALSE; - sp_event_context_discard_delayed_snap_event(event_context); - if (!event_context->within_tolerance) { - // we've been dragging, finish the star - sp_star_finish (sc); - } else if (event_context->item_to_select) { - // no dragging, select clicked item if any - if (event->button.state & GDK_SHIFT_MASK) { - selection->toggle(event_context->item_to_select); - } else { - selection->set(event_context->item_to_select); - } - } else { - // click in an empty space - selection->clear(); - } - - event_context->item_to_select = NULL; - ret = TRUE; - sp_canvas_item_ungrab(SP_CANVAS_ITEM (desktop->acetate), event->button.time); - } - break; - case GDK_KEY_PRESS: - switch (get_group0_keyval(&event->key)) { - case GDK_KEY_Alt_R: - case GDK_KEY_Control_L: - case GDK_KEY_Control_R: - case GDK_KEY_Shift_L: - case GDK_KEY_Shift_R: - case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt (at least on my machine) - case GDK_KEY_Meta_R: - sp_event_show_modifier_tip(event_context->defaultMessageContext(), event, - _("<b>Ctrl</b>: snap angle; keep rays radial"), - NULL, - NULL); - break; - case GDK_KEY_Up: - case GDK_KEY_Down: - case GDK_KEY_KP_Up: - case GDK_KEY_KP_Down: - // prevent the zoom field from activation - if (!MOD__CTRL_ONLY) - ret = TRUE; - break; - case GDK_KEY_x: - case GDK_KEY_X: - if (MOD__ALT_ONLY) { - desktop->setToolboxFocusTo ("altx-star"); - ret = TRUE; - } - break; - case GDK_KEY_Escape: - if (dragging) { - dragging = false; - sp_event_context_discard_delayed_snap_event(event_context); - // if drawing, cancel, otherwise pass it up for deselecting - sp_star_cancel(sc); - ret = TRUE; - } - break; - case GDK_KEY_space: - if (dragging) { - sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), - event->button.time); - dragging = false; - sp_event_context_discard_delayed_snap_event(event_context); - if (!event_context->within_tolerance) { - // we've been dragging, finish the star - sp_star_finish(sc); - } - // do not return true, so that space would work switching to selector - } - break; - - default: - break; - } - break; - case GDK_KEY_RELEASE: - switch (get_group0_keyval (&event->key)) { - case GDK_KEY_Alt_L: - case GDK_KEY_Alt_R: - case GDK_KEY_Control_L: - case GDK_KEY_Control_R: - case GDK_KEY_Shift_L: - case GDK_KEY_Shift_R: - case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt - case GDK_KEY_Meta_R: - event_context->defaultMessageContext()->clear(); - break; - default: - break; - } - break; - default: - break; - } - - if (!ret) { - if (((SPEventContextClass *) parent_class)->root_handler) - ret = ((SPEventContextClass *) parent_class)->root_handler (event_context, event); - } - - return ret; -} - -static void sp_star_drag(SPStarContext *sc, Geom::Point p, guint state) -{ - SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop; - - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12); - - if (!sc->item) { - - if (Inkscape::have_viable_layer(desktop, sc->_message_context) == false) { - return; - } - - // Create object - Inkscape::XML::Document *xml_doc = SP_EVENT_CONTEXT_DOCUMENT(sc)->getReprDoc(); - Inkscape::XML::Node *repr = xml_doc->createElement("svg:path"); - repr->setAttribute("sodipodi:type", "star"); - - // Set style - sp_desktop_apply_style_tool(desktop, repr, "/tools/shapes/star", false); - - sc->item = SP_ITEM(desktop->currentLayer()->appendChildRepr(repr)); - Inkscape::GC::release(repr); - sc->item->transform = SP_ITEM(desktop->currentLayer())->i2doc_affine().inverse(); - sc->item->updateRepr(); - - desktop->canvas->forceFullRedrawAfterInterruptions(5); - } - - /* Snap corner point with no constraints */ - SnapManager &m = desktop->namedview->snap_manager; - m.setup(desktop, true, sc->item); - Geom::Point pt2g = p; - m.freeSnapReturnByRef(pt2g, Inkscape::SNAPSOURCE_NODE_HANDLE); - m.unSetup(); - Geom::Point const p0 = desktop->dt2doc(sc->center); - Geom::Point const p1 = desktop->dt2doc(pt2g); - - SPStar *star = SP_STAR(sc->item); - - double const sides = (gdouble) sc->magnitude; - Geom::Point const d = p1 - p0; - Geom::Coord const r1 = Geom::L2(d); - double arg1 = atan2(d); - - if (state & GDK_CONTROL_MASK) { - /* Snap angle */ - arg1 = sp_round(arg1, M_PI / snaps); - } - - sp_star_position_set(star, sc->magnitude, p0, r1, r1 * sc->proportion, - arg1, arg1 + M_PI / sides, sc->isflatsided, sc->rounded, sc->randomized); - - /* status text */ - GString *rads = SP_PX_TO_METRIC_STRING(r1, desktop->namedview->getDefaultMetric()); - sc->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, - ( sc->isflatsided? - _("<b>Polygon</b>: radius %s, angle %5g°; with <b>Ctrl</b> to snap angle") - : _("<b>Star</b>: radius %s, angle %5g°; with <b>Ctrl</b> to snap angle") ), - rads->str, sp_round((arg1) * 180 / M_PI, 0.0001)); - - g_string_free(rads, FALSE); -} - -static void -sp_star_finish (SPStarContext * sc) -{ - sc->_message_context->clear(); - - if (sc->item != NULL) { - SPStar *star = SP_STAR(sc->item); - if (star->r[1] == 0) { - sp_star_cancel(sc); // Don't allow the creating of zero sized arc, for example when the start and and point snap to the snap grid point - return; - } - - // Set transform center, so that odd stars rotate correctly - // LP #462157 - sc->item->setCenter(sc->center); - - SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop; - SPObject *object = SP_OBJECT(sc->item); - - (SP_SHAPE(sc->item))->setShape(); - - object->updateRepr(SP_OBJECT_WRITE_EXT); - - desktop->canvas->endForcedFullRedraws(); - - sp_desktop_selection(desktop)->set(sc->item); - DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_STAR, - _("Create star")); - - sc->item = NULL; - } -} - -static void sp_star_cancel(SPStarContext *sc) -{ - SPDesktop *desktop = SP_EVENT_CONTEXT(sc)->desktop; - - sp_desktop_selection(desktop)->clear(); - sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), 0); - - if (sc->item != NULL) { - SP_OBJECT(sc->item)->deleteObject(); - sc->item = NULL; - } - - sc->within_tolerance = false; - sc->xp = 0; - sc->yp = 0; - sc->item_to_select = NULL; - - desktop->canvas->endForcedFullRedraws(); - - DocumentUndo::cancel(sp_desktop_document(desktop)); -} - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |
