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authorMartin Owens <doctormo@gmail.com>2014-03-27 01:33:44 +0000
committerMartin Owens <doctormo@gmail.com>2014-03-27 01:33:44 +0000
commit5a4fb2325f60d292b47330f540b26a3279341c90 (patch)
treed2aa7967be25450b83e625025366c618101ae49f /src/arc-context.cpp
parentThe Polar Arrange Tab of the Arrange Dialog now hides the parametric (diff)
parentRemove Snap menu item and improve grid menu item text (diff)
downloadinkscape-5a4fb2325f60d292b47330f540b26a3279341c90.tar.gz
inkscape-5a4fb2325f60d292b47330f540b26a3279341c90.zip
Commit a merge to trunk, with probabal errors
(bzr r11073.1.36)
Diffstat (limited to 'src/arc-context.cpp')
-rw-r--r--src/arc-context.cpp555
1 files changed, 0 insertions, 555 deletions
diff --git a/src/arc-context.cpp b/src/arc-context.cpp
deleted file mode 100644
index b913ab9f0..000000000
--- a/src/arc-context.cpp
+++ /dev/null
@@ -1,555 +0,0 @@
-/**
- * @file
- * Ellipse drawing context.
- */
-/* Authors:
- * Mitsuru Oka
- * Lauris Kaplinski <lauris@kaplinski.com>
- * bulia byak <buliabyak@users.sf.net>
- * Johan Engelen <johan@shouraizou.nl>
- * Abhishek Sharma
- * Jon A. Cruz <jon@joncruz.org>
- *
- * Copyright (C) 2000-2006 Authors
- * Copyright (C) 2000-2001 Ximian, Inc.
- *
- * Released under GNU GPL, read the file 'COPYING' for more information
- */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-#include <gdk/gdkkeysyms.h>
-
-#include "macros.h"
-#include <glibmm/i18n.h>
-#include "display/sp-canvas.h"
-#include "sp-ellipse.h"
-#include "document.h"
-#include "document-undo.h"
-#include "sp-namedview.h"
-#include "selection.h"
-#include "desktop-handles.h"
-#include "snap.h"
-#include "pixmaps/cursor-ellipse.xpm"
-#include "sp-metrics.h"
-#include "xml/repr.h"
-#include "xml/node-event-vector.h"
-#include "object-edit.h"
-#include "preferences.h"
-#include "message-context.h"
-#include "desktop.h"
-#include "desktop-style.h"
-#include "context-fns.h"
-#include "verbs.h"
-#include "shape-editor.h"
-#include "event-context.h"
-
-#include "arc-context.h"
-#include "display/sp-canvas-item.h"
-
-// Define new form of key macros if we're using an old GTK+ version
-#if !GTK_CHECK_VERSION(2,22,0)
-#include "compat-key-syms.h"
-#endif
-
-using Inkscape::DocumentUndo;
-
-static void sp_arc_context_class_init(SPArcContextClass *klass);
-static void sp_arc_context_init(SPArcContext *arc_context);
-static void sp_arc_context_dispose(GObject *object);
-
-static void sp_arc_context_setup(SPEventContext *ec);
-static void sp_arc_context_finish(SPEventContext *ec);
-static gint sp_arc_context_root_handler(SPEventContext *event_context, GdkEvent *event);
-static gint sp_arc_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
-
-static void sp_arc_drag(SPArcContext *ec, Geom::Point pt, guint state);
-static void sp_arc_finish(SPArcContext *ec);
-static void sp_arc_cancel(SPArcContext *ec);
-
-static SPEventContextClass *parent_class;
-
-GType sp_arc_context_get_type()
-{
- static GType type = 0;
- if (!type) {
- GTypeInfo info = {
- sizeof(SPArcContextClass),
- NULL, NULL,
- (GClassInitFunc) sp_arc_context_class_init,
- NULL, NULL,
- sizeof(SPArcContext),
- 4,
- (GInstanceInitFunc) sp_arc_context_init,
- NULL, /* value_table */
- };
- type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPArcContext", &info, (GTypeFlags) 0);
- }
- return type;
-}
-
-static void sp_arc_context_class_init(SPArcContextClass *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_arc_context_dispose;
-
- event_context_class->setup = sp_arc_context_setup;
- event_context_class->finish = sp_arc_context_finish;
- event_context_class->root_handler = sp_arc_context_root_handler;
- event_context_class->item_handler = sp_arc_context_item_handler;
-}
-
-static void sp_arc_context_init(SPArcContext *arc_context)
-{
- SPEventContext *event_context = SP_EVENT_CONTEXT(arc_context);
-
- event_context->cursor_shape = cursor_ellipse_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/arc";
-
- arc_context->item = NULL;
-
- new (&arc_context->sel_changed_connection) sigc::connection();
-}
-
-static void sp_arc_context_finish(SPEventContext *ec)
-{
- SPArcContext *ac = SP_ARC_CONTEXT(ec);
- SPDesktop *desktop = ec->desktop;
-
- sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), GDK_CURRENT_TIME);
- sp_arc_finish(ac);
- ac->sel_changed_connection.disconnect();
-
- if (((SPEventContextClass *) parent_class)->finish) {
- ((SPEventContextClass *) parent_class)->finish(ec);
- }
-}
-
-static void sp_arc_context_dispose(GObject *object)
-{
- SPEventContext *ec = SP_EVENT_CONTEXT(object);
- SPArcContext *ac = SP_ARC_CONTEXT(object);
-
- ec->enableGrDrag(false);
-
- ac->sel_changed_connection.disconnect();
- ac->sel_changed_connection.~connection();
-
- delete ec->shape_editor;
- ec->shape_editor = NULL;
-
- /* fixme: This is necessary because we do not grab */
- if (ac->item) {
- sp_arc_finish(ac);
- }
-
- delete ac->_message_context;
-
- G_OBJECT_CLASS(parent_class)->dispose(object);
-}
-
-/**
- * Callback that processes the "changed" signal on the selection;
- * destroys old and creates new knotholder.
- */
-void sp_arc_context_selection_changed(Inkscape::Selection * selection, gpointer data)
-{
- SPArcContext *ac = SP_ARC_CONTEXT(data);
- SPEventContext *ec = SP_EVENT_CONTEXT(ac);
-
- ec->shape_editor->unset_item(SH_KNOTHOLDER);
- SPItem *item = selection->singleItem();
- ec->shape_editor->set_item(item, SH_KNOTHOLDER);
-}
-
-static void sp_arc_context_setup(SPEventContext *ec)
-{
- SPArcContext *ac = SP_ARC_CONTEXT(ec);
- Inkscape::Selection *selection = sp_desktop_selection(ec->desktop);
-
- if (((SPEventContextClass *) parent_class)->setup) {
- ((SPEventContextClass *) parent_class)->setup(ec);
- }
-
- 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);
- }
-
- ac->sel_changed_connection.disconnect();
- ac->sel_changed_connection = selection->connectChanged(
- sigc::bind(sigc::ptr_fun(&sp_arc_context_selection_changed), (gpointer) ac)
- );
-
- Inkscape::Preferences *prefs = Inkscape::Preferences::get();
- if (prefs->getBool("/tools/shapes/selcue")) {
- ec->enableSelectionCue();
- }
-
- if (prefs->getBool("/tools/shapes/gradientdrag")) {
- ec->enableGrDrag();
- }
-
- ac->_message_context = new Inkscape::MessageContext(ec->desktop->messageStack());
-}
-
-static gint sp_arc_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
-{
- SPDesktop *desktop = event_context->desktop;
- gint ret = FALSE;
-
- switch (event->type) {
- case GDK_BUTTON_PRESS:
- if (event->button.button == 1 && !event_context->space_panning) {
- Inkscape::setup_for_drag_start(desktop, event_context, event);
- ret = TRUE;
- }
- break;
- // motion and release are always on root (why?)
- default:
- break;
- }
-
- if (((SPEventContextClass *) parent_class)->item_handler) {
- ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
- }
-
- return ret;
-}
-
-static gint sp_arc_context_root_handler(SPEventContext *event_context, GdkEvent *event)
-{
- static bool dragging;
-
- SPDesktop *desktop = event_context->desktop;
- Inkscape::Selection *selection = sp_desktop_selection(desktop);
- SPArcContext *ac = SP_ARC_CONTEXT(event_context);
- Inkscape::Preferences *prefs = Inkscape::Preferences::get();
-
- 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;
- ac->center = Inkscape::setup_for_drag_start(desktop, event_context, event);
-
- /* Snap center */
- SnapManager &m = desktop->namedview->snap_manager;
- m.setup(desktop);
- m.freeSnapReturnByRef(ac->center, Inkscape::SNAPSOURCE_NODE_HANDLE);
-
- 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;
- m.unSetup();
- }
- 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_arc_drag(ac, motion_dt, event->motion.state);
-
- gobble_motion_events(GDK_BUTTON1_MASK);
-
- ret = TRUE;
- } else if (!sp_event_context_knot_mouseover(ac)){
- 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 arc
- sp_arc_finish(ac);
- } 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->xp = 0;
- event_context->yp = 0;
- 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_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 (at least on my machine)
- case GDK_KEY_Meta_R:
- if (!dragging) {
- sp_event_show_modifier_tip(event_context->defaultMessageContext(), event,
- _("<b>Ctrl</b>: make circle or integer-ratio ellipse, snap arc/segment angle"),
- _("<b>Shift</b>: draw around the starting point"),
- 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-arc");
- 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_arc_cancel(ac);
- 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 arc
- sp_arc_finish(ac);
- }
- // do not return true, so that space would work switching to selector
- }
- break;
-
- default:
- break;
- }
- break;
- case GDK_KEY_RELEASE:
- switch (event->key.keyval) {
- 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_arc_drag(SPArcContext *ac, Geom::Point pt, guint state)
-{
- SPDesktop *desktop = SP_EVENT_CONTEXT(ac)->desktop;
-
- if (!ac->item) {
-
- if (Inkscape::have_viable_layer(desktop, ac->_message_context) == false) {
- return;
- }
-
- // Create object
- Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
- Inkscape::XML::Node *repr = xml_doc->createElement("svg:path");
- repr->setAttribute("sodipodi:type", "arc");
-
- // Set style
- sp_desktop_apply_style_tool(desktop, repr, "/tools/shapes/arc", false);
-
- ac->item = SP_ITEM(desktop->currentLayer()->appendChildRepr(repr));
- Inkscape::GC::release(repr);
- ac->item->transform = SP_ITEM(desktop->currentLayer())->i2doc_affine().inverse();
- ac->item->updateRepr();
-
- desktop->canvas->forceFullRedrawAfterInterruptions(5);
- }
-
- bool ctrl_save = false;
- if ((state & GDK_MOD1_MASK) && (state & GDK_CONTROL_MASK) && !(state & GDK_SHIFT_MASK)) {
- // if Alt is pressed without Shift in addition to Control, temporarily drop the CONTROL mask
- // so that the ellipse is not constrained to integer ratios
- ctrl_save = true;
- state = state ^ GDK_CONTROL_MASK;
- }
- Geom::Rect r = Inkscape::snap_rectangular_box(desktop, ac->item, pt, ac->center, state);
- if (ctrl_save) {
- state = state ^ GDK_CONTROL_MASK;
- }
-
- Geom::Point dir = r.dimensions() / 2;
- if (state & GDK_MOD1_MASK) {
- /* With Alt let the ellipse pass through the mouse pointer */
- Geom::Point c = r.midpoint();
- if (!ctrl_save) {
- if (fabs(dir[Geom::X]) > 1E-6 && fabs(dir[Geom::Y]) > 1E-6) {
- Geom::Affine const i2d ( (ac->item)->i2dt_affine() );
- Geom::Point new_dir = pt * i2d - c;
- new_dir[Geom::X] *= dir[Geom::Y] / dir[Geom::X];
- double lambda = new_dir.length() / dir[Geom::Y];
- r = Geom::Rect (c - lambda*dir, c + lambda*dir);
- }
- } else {
- /* with Alt+Ctrl (without Shift) we generate a perfect circle
- with diameter click point <--> mouse pointer */
- double l = dir.length();
- Geom::Point d (l, l);
- r = Geom::Rect (c - d, c + d);
- }
- }
-
- sp_arc_position_set(SP_ARC(ac->item),
- r.midpoint()[Geom::X], r.midpoint()[Geom::Y],
- r.dimensions()[Geom::X] / 2, r.dimensions()[Geom::Y] / 2);
-
- double rdimx = r.dimensions()[Geom::X];
- double rdimy = r.dimensions()[Geom::Y];
- GString *xs = SP_PX_TO_METRIC_STRING(rdimx, desktop->namedview->getDefaultMetric());
- GString *ys = SP_PX_TO_METRIC_STRING(rdimy, desktop->namedview->getDefaultMetric());
- if (state & GDK_CONTROL_MASK) {
- int ratio_x, ratio_y;
- if (fabs (rdimx) > fabs (rdimy)) {
- ratio_x = (int) rint (rdimx / rdimy);
- ratio_y = 1;
- } else {
- ratio_x = 1;
- ratio_y = (int) rint (rdimy / rdimx);
- }
- ac->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("<b>Ellipse</b>: %s &#215; %s (constrained to ratio %d:%d); with <b>Shift</b> to draw around the starting point"), xs->str, ys->str, ratio_x, ratio_y);
- } else {
- ac->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("<b>Ellipse</b>: %s &#215; %s; with <b>Ctrl</b> to make square or integer-ratio ellipse; with <b>Shift</b> to draw around the starting point"), xs->str, ys->str);
- }
- g_string_free(xs, FALSE);
- g_string_free(ys, FALSE);
-}
-
-static void sp_arc_finish(SPArcContext *ac)
-{
- ac->_message_context->clear();
-
- if (ac->item != NULL) {
-
- SPGenericEllipse *ge = SP_GENERICELLIPSE(SP_ARC(ac->item));
- if (ge->rx.computed == 0 || ge->ry.computed == 0) {
- sp_arc_cancel(ac); // Don't allow the creating of zero sized arc, for example when the start and and point snap to the snap grid point
- return;
- }
-
- SPDesktop *desktop = SP_EVENT_CONTEXT(ac)->desktop;
-
- SP_OBJECT(ac->item)->updateRepr();
-
- desktop->canvas->endForcedFullRedraws();
-
- sp_desktop_selection(desktop)->set(ac->item);
- DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_ARC,
- _("Create ellipse"));
-
- ac->item = NULL;
- }
-}
-
-static void sp_arc_cancel(SPArcContext *ac)
-{
- SPDesktop *desktop = SP_EVENT_CONTEXT(ac)->desktop;
-
- sp_desktop_selection(desktop)->clear();
- sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), 0);
-
- if (ac->item != NULL) {
- SP_OBJECT(ac->item)->deleteObject();
- ac->item = NULL;
- }
-
- ac->within_tolerance = false;
- ac->xp = 0;
- ac->yp = 0;
- ac->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 :