diff options
| author | Martin Owens <doctormo@gmail.com> | 2014-03-27 01:33:44 +0000 |
|---|---|---|
| committer | Martin Owens <doctormo@gmail.com> | 2014-03-27 01:33:44 +0000 |
| commit | 5a4fb2325f60d292b47330f540b26a3279341c90 (patch) | |
| tree | d2aa7967be25450b83e625025366c618101ae49f /src/arc-context.cpp | |
| parent | The Polar Arrange Tab of the Arrange Dialog now hides the parametric (diff) | |
| parent | Remove Snap menu item and improve grid menu item text (diff) | |
| download | inkscape-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.cpp | 555 |
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 × %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 × %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 : |
