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Diffstat (limited to 'src/gradient-context.cpp')
| -rw-r--r-- | src/gradient-context.cpp | 977 |
1 files changed, 0 insertions, 977 deletions
diff --git a/src/gradient-context.cpp b/src/gradient-context.cpp deleted file mode 100644 index 3a0261cc7..000000000 --- a/src/gradient-context.cpp +++ /dev/null @@ -1,977 +0,0 @@ -/* - * Gradient drawing and editing tool - * - * Authors: - * bulia byak <buliabyak@users.sf.net> - * Johan Engelen <j.b.c.engelen@ewi.utwente.nl> - * Abhishek Sharma - * - * Copyright (C) 2007 Johan Engelen - * Copyright (C) 2005 Authors - * - * 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 "document.h" -#include "selection.h" -#include "desktop.h" -#include "desktop-handles.h" -#include "message-context.h" -#include "message-stack.h" -#include "pixmaps/cursor-gradient.xpm" -#include "pixmaps/cursor-gradient-add.xpm" -#include "gradient-context.h" -#include "gradient-chemistry.h" -#include <glibmm/i18n.h> -#include "preferences.h" -#include "gradient-drag.h" -#include "gradient-chemistry.h" -#include "xml/repr.h" -#include "sp-item.h" -#include "display/sp-ctrlline.h" -#include "sp-linear-gradient.h" -#include "sp-radial-gradient.h" -#include "sp-stop.h" -#include "svg/css-ostringstream.h" -#include "svg/svg-color.h" -#include "snap.h" -#include "sp-namedview.h" -#include "rubberband.h" -#include "document-undo.h" -#include "verbs.h" -#include "selection-chemistry.h" - -using Inkscape::DocumentUndo; - -#include "tool-factory.h" - -namespace Inkscape { -namespace UI { -namespace Tools { - -static void sp_gradient_drag(GradientTool &rc, Geom::Point const pt, guint state, guint32 etime); - -namespace { - ToolBase* createGradientContext() { - return new GradientTool(); - } - - bool gradientContextRegistered = ToolFactory::instance().registerObject("/tools/gradient", createGradientContext); -} - -const std::string& GradientTool::getPrefsPath() { - return GradientTool::prefsPath; -} - -const std::string GradientTool::prefsPath = "/tools/gradient"; - - -GradientTool::GradientTool() : ToolBase() { - this->node_added = false; - this->subselcon = 0; - this->selcon = 0; - - this->cursor_addnode = false; - this->cursor_shape = cursor_gradient_xpm; - this->hot_x = 4; - this->hot_y = 4; - this->xp = 0; - this->yp = 0; - this->tolerance = 6; - this->within_tolerance = false; - this->item_to_select = NULL; -} - -GradientTool::~GradientTool() { - this->enableGrDrag(false); - - this->selcon->disconnect(); - delete this->selcon; - - this->subselcon->disconnect(); - delete this->subselcon; -} - -const gchar *gr_handle_descr [] = { - N_("Linear gradient <b>start</b>"), //POINT_LG_BEGIN - N_("Linear gradient <b>end</b>"), - N_("Linear gradient <b>mid stop</b>"), - N_("Radial gradient <b>center</b>"), - N_("Radial gradient <b>radius</b>"), - N_("Radial gradient <b>radius</b>"), - N_("Radial gradient <b>focus</b>"), // POINT_RG_FOCUS - N_("Radial gradient <b>mid stop</b>"), - N_("Radial gradient <b>mid stop</b>") -}; - -void GradientTool::selection_changed(Inkscape::Selection*) { - GradientTool *rc = (GradientTool *) this; - - GrDrag *drag = rc->_grdrag; - Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(rc)->desktop); - if (selection == NULL) { - return; - } - guint n_obj = g_slist_length((GSList *) selection->itemList()); - - if (!drag->isNonEmpty() || selection->isEmpty()) - return; - guint n_tot = drag->numDraggers(); - guint n_sel = drag->numSelected(); - - //The use of ngettext in the following code is intentional even if the English singular form would never be used - if (n_sel == 1) { - if (drag->singleSelectedDraggerNumDraggables() == 1) { - gchar * message = g_strconcat( - //TRANSLATORS: %s will be substituted with the point name (see previous messages); This is part of a compound message - _("%s selected"), - //TRANSLATORS: Mind the space in front. This is part of a compound message - ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot), - ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL); - rc->message_context->setF(Inkscape::NORMAL_MESSAGE, - message,_(gr_handle_descr[drag->singleSelectedDraggerSingleDraggableType()]), n_tot, n_obj); - } else { - gchar * message = g_strconcat( - //TRANSLATORS: This is a part of a compound message (out of two more indicating: grandint handle count & object count) - ngettext("One handle merging %d stop (drag with <b>Shift</b> to separate) selected", - "One handle merging %d stops (drag with <b>Shift</b> to separate) selected",drag->singleSelectedDraggerNumDraggables()), - ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot), - ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL); - rc->message_context->setF(Inkscape::NORMAL_MESSAGE,message,drag->singleSelectedDraggerNumDraggables(), n_tot, n_obj); - } - } else if (n_sel > 1) { - //TRANSLATORS: The plural refers to number of selected gradient handles. This is part of a compound message (part two indicates selected object count) - gchar * message = g_strconcat(ngettext("<b>%d</b> gradient handle selected out of %d","<b>%d</b> gradient handles selected out of %d",n_sel), - //TRANSLATORS: Mind the space in front. (Refers to gradient handles selected). This is part of a compound message - ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL); - rc->message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj); - } else if (n_sel == 0) { - rc->message_context->setF(Inkscape::NORMAL_MESSAGE, - //TRANSLATORS: The plural refers to number of selected objects - ngettext("<b>No</b> gradient handles selected out of %d on %d selected object", - "<b>No</b> gradient handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj); - } -} - -void GradientTool::setup() { - ToolBase::setup(); - - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - if (prefs->getBool("/tools/gradient/selcue", true)) { - this->enableSelectionCue(); - } - - this->enableGrDrag(); - Inkscape::Selection *selection = sp_desktop_selection(this->desktop); - - this->selcon = new sigc::connection(selection->connectChanged( - sigc::mem_fun(this, &GradientTool::selection_changed) - )); - - this->subselcon = new sigc::connection(this->desktop->connectToolSubselectionChanged( - sigc::hide(sigc::bind( - sigc::mem_fun(this, &GradientTool::selection_changed), - (Inkscape::Selection*)NULL - )) - )); - - this->selection_changed(selection); -} - -void -sp_gradient_context_select_next (ToolBase *event_context) -{ - GrDrag *drag = event_context->_grdrag; - g_assert (drag); - - GrDragger *d = drag->select_next(); - - event_context->desktop->scroll_to_point(d->point, 1.0); -} - -void -sp_gradient_context_select_prev (ToolBase *event_context) -{ - GrDrag *drag = event_context->_grdrag; - g_assert (drag); - - GrDragger *d = drag->select_prev(); - - event_context->desktop->scroll_to_point(d->point, 1.0); -} - -static bool -sp_gradient_context_is_over_line (GradientTool *rc, SPItem *item, Geom::Point event_p) -{ - SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop; - - //Translate mouse point into proper coord system - rc->mousepoint_doc = desktop->w2d(event_p); - - SPCtrlLine* line = SP_CTRLLINE(item); - - Geom::LineSegment ls(line->s, line->e); - Geom::Point nearest = ls.pointAt(ls.nearestPoint(rc->mousepoint_doc)); - double dist_screen = Geom::L2 (rc->mousepoint_doc - nearest) * desktop->current_zoom(); - - double tolerance = (double) SP_EVENT_CONTEXT(rc)->tolerance; - - bool close = (dist_screen < tolerance); - - return close; -} - -static std::vector<Geom::Point> -sp_gradient_context_get_stop_intervals (GrDrag *drag, GSList **these_stops, GSList **next_stops) -{ - std::vector<Geom::Point> coords; - - // for all selected draggers - for (GList *i = drag->selected; i != NULL; i = i->next) { - GrDragger *dragger = (GrDragger *) i->data; - // remember the coord of the dragger to reselect it later - coords.push_back(dragger->point); - // for all draggables of dragger - for (GSList const* j = dragger->draggables; j != NULL; j = j->next) { - GrDraggable *d = (GrDraggable *) j->data; - - // find the gradient - SPGradient *gradient = getGradient(d->item, d->fill_or_stroke); - SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (gradient, false); - - // these draggable types cannot have a next draggabe to insert a stop between them - if (d->point_type == POINT_LG_END || - d->point_type == POINT_RG_FOCUS || - d->point_type == POINT_RG_R1 || - d->point_type == POINT_RG_R2) { - continue; - } - - // from draggables to stops - SPStop *this_stop = sp_get_stop_i (vector, d->point_i); - SPStop *next_stop = this_stop->getNextStop(); - SPStop *last_stop = sp_last_stop (vector); - - Inkscape::PaintTarget fs = d->fill_or_stroke; - SPItem *item = d->item; - gint type = d->point_type; - gint p_i = d->point_i; - - // if there's a next stop, - if (next_stop) { - GrDragger *dnext = NULL; - // find its dragger - // (complex because it may have different types, and because in radial, - // more than one dragger may correspond to a stop, so we must distinguish) - if (type == POINT_LG_BEGIN || type == POINT_LG_MID) { - if (next_stop == last_stop) { - dnext = drag->getDraggerFor(item, POINT_LG_END, p_i+1, fs); - } else { - dnext = drag->getDraggerFor(item, POINT_LG_MID, p_i+1, fs); - } - } else { // radial - if (type == POINT_RG_CENTER || type == POINT_RG_MID1) { - if (next_stop == last_stop) { - dnext = drag->getDraggerFor(item, POINT_RG_R1, p_i+1, fs); - } else { - dnext = drag->getDraggerFor(item, POINT_RG_MID1, p_i+1, fs); - } - } - if ((type == POINT_RG_MID2) || - (type == POINT_RG_CENTER && dnext && !dnext->isSelected())) { - if (next_stop == last_stop) { - dnext = drag->getDraggerFor(item, POINT_RG_R2, p_i+1, fs); - } else { - dnext = drag->getDraggerFor(item, POINT_RG_MID2, p_i+1, fs); - } - } - } - - // if both adjacent draggers selected, - if (!g_slist_find(*these_stops, this_stop) && dnext && dnext->isSelected()) { - - // remember the coords of the future dragger to select it - coords.push_back(0.5*(dragger->point + dnext->point)); - - // do not insert a stop now, it will confuse the loop; - // just remember the stops - *these_stops = g_slist_prepend (*these_stops, this_stop); - *next_stops = g_slist_prepend (*next_stops, next_stop); - } - } - } - } - return coords; -} - -void -sp_gradient_context_add_stops_between_selected_stops (GradientTool *rc) -{ - SPDocument *doc = NULL; - GrDrag *drag = rc->_grdrag; - - GSList *these_stops = NULL; - GSList *next_stops = NULL; - - std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops); - - if (g_slist_length(these_stops) == 0 && drag->numSelected() == 1) { - // if a single stop is selected, add between that stop and the next one - GrDragger *dragger = (GrDragger *) drag->selected->data; - for (GSList const* j = dragger->draggables; j != NULL; j = j->next) { - GrDraggable *d = (GrDraggable *) j->data; - if (d->point_type == POINT_RG_FOCUS) { - /* - * There are 2 draggables at the center (start) of a radial gradient - * To avoid creating 2 seperate stops, ignore this draggable point type - */ - continue; - } - SPGradient *gradient = getGradient(d->item, d->fill_or_stroke); - SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (gradient, false); - SPStop *this_stop = sp_get_stop_i (vector, d->point_i); - SPStop *next_stop = this_stop->getNextStop(); - if (this_stop && next_stop) { - these_stops = g_slist_prepend (these_stops, this_stop); - next_stops = g_slist_prepend (next_stops, next_stop); - } - } - } - - // now actually create the new stops - GSList *i = these_stops; - GSList *j = next_stops; - GSList *new_stops = NULL; - - for (; i != NULL && j != NULL; i = i->next, j = j->next) { - SPStop *this_stop = (SPStop *) i->data; - SPStop *next_stop = (SPStop *) j->data; - gfloat offset = 0.5*(this_stop->offset + next_stop->offset); - SPObject *parent = this_stop->parent; - if (SP_IS_GRADIENT (parent)) { - doc = parent->document; - SPStop *new_stop = sp_vector_add_stop (SP_GRADIENT (parent), this_stop, next_stop, offset); - new_stops = g_slist_prepend (new_stops, new_stop); - SP_GRADIENT(parent)->ensureVector(); - } - } - - if (g_slist_length(these_stops) > 0 && doc) { - DocumentUndo::done(doc, SP_VERB_CONTEXT_GRADIENT, _("Add gradient stop")); - drag->updateDraggers(); - // so that it does not automatically update draggers in idle loop, as this would deselect - drag->local_change = true; - - // select the newly created stops - for (GSList *s = new_stops; s != NULL; s = s->next) { - drag->selectByStop((SPStop *)s->data); - } - - } - - g_slist_free (these_stops); - g_slist_free (next_stops); - g_slist_free (new_stops); -} - -static double sqr(double x) {return x*x;} - -static void -sp_gradient_simplify(GradientTool *rc, double tolerance) -{ - SPDocument *doc = NULL; - GrDrag *drag = rc->_grdrag; - - GSList *these_stops = NULL; - GSList *next_stops = NULL; - - std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops); - - GSList *todel = NULL; - - GSList *i = these_stops; - GSList *j = next_stops; - for (; i != NULL && j != NULL; i = i->next, j = j->next) { - SPStop *stop0 = (SPStop *) i->data; - SPStop *stop1 = (SPStop *) j->data; - - gint i1 = g_slist_index(these_stops, stop1); - if (i1 != -1) { - GSList *next_next = g_slist_nth (next_stops, i1); - if (next_next) { - SPStop *stop2 = (SPStop *) next_next->data; - - if (g_slist_find(todel, stop0) || g_slist_find(todel, stop2)) - continue; - - guint32 const c0 = stop0->get_rgba32(); - guint32 const c2 = stop2->get_rgba32(); - guint32 const c1r = stop1->get_rgba32(); - guint32 c1 = average_color (c0, c2, - (stop1->offset - stop0->offset) / (stop2->offset - stop0->offset)); - - double diff = - sqr(SP_RGBA32_R_F(c1) - SP_RGBA32_R_F(c1r)) + - sqr(SP_RGBA32_G_F(c1) - SP_RGBA32_G_F(c1r)) + - sqr(SP_RGBA32_B_F(c1) - SP_RGBA32_B_F(c1r)) + - sqr(SP_RGBA32_A_F(c1) - SP_RGBA32_A_F(c1r)); - - if (diff < tolerance) - todel = g_slist_prepend (todel, stop1); - } - } - } - - for (i = todel; i != NULL; i = i->next) { - SPStop *stop = (SPStop*) i->data; - doc = stop->document; - Inkscape::XML::Node * parent = stop->getRepr()->parent(); - parent->removeChild( stop->getRepr() ); - } - - if (g_slist_length(todel) > 0) { - DocumentUndo::done(doc, SP_VERB_CONTEXT_GRADIENT, _("Simplify gradient")); - drag->local_change = true; - drag->updateDraggers(); - drag->selectByCoords(coords); - } - - g_slist_free (todel); - g_slist_free (these_stops); - g_slist_free (next_stops); -} - - -static void -sp_gradient_context_add_stop_near_point (GradientTool *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/) -{ - // item is the selected item. mouse_p the location in doc coordinates of where to add the stop - - ToolBase *ec = SP_EVENT_CONTEXT(rc); - SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop; - - double tolerance = (double) ec->tolerance; - - SPStop *newstop = ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom()); - - DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT, - _("Add gradient stop")); - - ec->get_drag()->updateDraggers(); - ec->get_drag()->local_change = true; - ec->get_drag()->selectByStop(newstop); -} - -bool GradientTool::root_handler(GdkEvent* event) { - static bool dragging; - - Inkscape::Selection *selection = sp_desktop_selection (desktop); - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - this->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100); - double const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000, "px"); // in px - - GrDrag *drag = this->_grdrag; - g_assert (drag); - - gint ret = FALSE; - - switch (event->type) { - case GDK_2BUTTON_PRESS: - if ( event->button.button == 1 ) { - bool over_line = false; - SPCtrlLine *line = NULL; - - if (drag->lines) { - for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) { - line = (SPCtrlLine*) l->data; - over_line |= sp_gradient_context_is_over_line (this, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y)); - } - } - - if (over_line) { - // we take the first item in selection, because with doubleclick, the first click - // always resets selection to the single object under cursor - sp_gradient_context_add_stop_near_point(this, SP_ITEM(selection->itemList()->data), this->mousepoint_doc, event->button.time); - } else { - for (GSList const* i = selection->itemList(); i != NULL; i = i->next) { - SPItem *item = SP_ITEM(i->data); - SPGradientType new_type = (SPGradientType) prefs->getInt("/tools/gradient/newgradient", SP_GRADIENT_TYPE_LINEAR); - Inkscape::PaintTarget fsmode = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE; - - SPGradient *vector = sp_gradient_vector_for_object(sp_desktop_document(desktop), desktop, item, fsmode); - - SPGradient *priv = sp_item_set_gradient(item, vector, new_type, fsmode); - sp_gradient_reset_to_userspace(priv, item); - } - - DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT, - _("Create default gradient")); - } - ret = TRUE; - } - break; - - case GDK_BUTTON_PRESS: - if ( event->button.button == 1 && !this->space_panning ) { - Geom::Point button_w(event->button.x, event->button.y); - - // save drag origin - this->xp = (gint) button_w[Geom::X]; - this->yp = (gint) button_w[Geom::Y]; - this->within_tolerance = true; - - dragging = true; - - Geom::Point button_dt = desktop->w2d(button_w); - if (event->button.state & GDK_SHIFT_MASK) { - Inkscape::Rubberband::get(desktop)->start(desktop, button_dt); - } else { - // remember clicked item, disregarding groups, honoring Alt; do nothing with Crtl to - // enable Ctrl+doubleclick of exactly the selected item(s) - if (!(event->button.state & GDK_CONTROL_MASK)) { - this->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, TRUE); - } - - if (!selection->isEmpty()) { - SnapManager &m = desktop->namedview->snap_manager; - m.setup(desktop); - m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE); - m.unSetup(); - } - - this->origin = button_dt; - } - - ret = TRUE; - } - break; - - case GDK_MOTION_NOTIFY: - if (dragging && ( event->motion.state & GDK_BUTTON1_MASK ) && !this->space_panning) { - if ( this->within_tolerance - && ( abs( (gint) event->motion.x - this->xp ) < this->tolerance ) - && ( abs( (gint) event->motion.y - this->yp ) < this->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) - this->within_tolerance = false; - - Geom::Point const motion_w(event->motion.x, - event->motion.y); - Geom::Point const motion_dt = this->desktop->w2d(motion_w); - - if (Inkscape::Rubberband::get(desktop)->is_started()) { - Inkscape::Rubberband::get(desktop)->move(motion_dt); - this->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw around</b> handles to select them")); - } else { - sp_gradient_drag(*this, motion_dt, event->motion.state, event->motion.time); - } - - gobble_motion_events(GDK_BUTTON1_MASK); - - ret = TRUE; - } else { - if (!drag->mouseOver() && !selection->isEmpty()) { - SnapManager &m = desktop->namedview->snap_manager; - m.setup(desktop); - - Geom::Point const motion_w(event->motion.x, event->motion.y); - Geom::Point const motion_dt = this->desktop->w2d(motion_w); - - m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_OTHER_HANDLE)); - m.unSetup(); - } - - bool over_line = false; - - if (drag->lines) { - for (GSList *l = drag->lines; l != NULL; l = l->next) { - over_line |= sp_gradient_context_is_over_line (this, (SPItem*) l->data, Geom::Point(event->motion.x, event->motion.y)); - } - } - - if (this->cursor_addnode && !over_line) { - this->cursor_shape = cursor_gradient_xpm; - this->sp_event_context_update_cursor(); - this->cursor_addnode = false; - } else if (!this->cursor_addnode && over_line) { - this->cursor_shape = cursor_gradient_add_xpm; - this->sp_event_context_update_cursor(); - this->cursor_addnode = true; - } - } - break; - - case GDK_BUTTON_RELEASE: - this->xp = this->yp = 0; - - if ( event->button.button == 1 && !this->space_panning ) { - bool over_line = false; - SPCtrlLine *line = NULL; - - if (drag->lines) { - for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) { - line = (SPCtrlLine*) l->data; - over_line = sp_gradient_context_is_over_line (this, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y)); - if (over_line) - break; - } - } - - if ( (event->button.state & GDK_CONTROL_MASK) && (event->button.state & GDK_MOD1_MASK ) ) { - if (over_line && line) { - sp_gradient_context_add_stop_near_point(this, line->item, this->mousepoint_doc, 0); - ret = TRUE; - } - } else { - dragging = false; - - // unless clicked with Ctrl (to enable Ctrl+doubleclick). - if (event->button.state & GDK_CONTROL_MASK) { - ret = TRUE; - break; - } - - if (!this->within_tolerance) { - // we've been dragging, either do nothing (grdrag handles that), - // or rubberband-select if we have rubberband - Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop); - - if (r->is_started() && !this->within_tolerance) { - // this was a rubberband drag - if (r->getMode() == RUBBERBAND_MODE_RECT) { - Geom::OptRect const b = r->getRectangle(); - drag->selectRect(*b); - } - } - } else if (this->item_to_select) { - if (over_line && line) { - // Clicked on an existing gradient line, dont change selection. This stops - // possible change in selection during a double click with overlapping objects - } else { - // no dragging, select clicked item if any - if (event->button.state & GDK_SHIFT_MASK) { - selection->toggle(this->item_to_select); - } else { - drag->deselectAll(); - selection->set(this->item_to_select); - } - } - } else { - // click in an empty space; do the same as Esc - if (drag->selected) { - drag->deselectAll(); - } else { - selection->clear(); - } - } - - this->item_to_select = NULL; - ret = TRUE; - } - - Inkscape::Rubberband::get(desktop)->stop(); - } - 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: - sp_event_show_modifier_tip (this->defaultMessageContext(), event, - _("<b>Ctrl</b>: snap gradient angle"), - _("<b>Shift</b>: draw gradient around the starting point"), - NULL); - break; - - case GDK_KEY_x: - case GDK_KEY_X: - if (MOD__ALT_ONLY(event)) { - desktop->setToolboxFocusTo ("altx-grad"); - ret = TRUE; - } - break; - - case GDK_KEY_A: - case GDK_KEY_a: - if (MOD__CTRL_ONLY(event) && drag->isNonEmpty()) { - drag->selectAll(); - ret = TRUE; - } - break; - - case GDK_KEY_L: - case GDK_KEY_l: - if (MOD__CTRL_ONLY(event) && drag->isNonEmpty() && drag->hasSelection()) { - sp_gradient_simplify(this, 1e-4); - ret = TRUE; - } - break; - - case GDK_KEY_Escape: - if (drag->selected) { - drag->deselectAll(); - } else { - Inkscape::SelectionHelper::selectNone(desktop); - } - ret = TRUE; - //TODO: make dragging escapable by Esc - break; - - case GDK_KEY_Left: // move handle left - case GDK_KEY_KP_Left: - case GDK_KEY_KP_4: - if (!MOD__CTRL(event)) { // not ctrl - gint mul = 1 + gobble_key_events( - get_group0_keyval(&event->key), 0); // with any mask - if (MOD__ALT(event)) { // alt - if (MOD__SHIFT(event)) { - drag->selected_move_screen(mul*-10, 0); // shift - } else { - drag->selected_move_screen(mul*-1, 0); // no shift - } - } else { // no alt - if (MOD__SHIFT(event)) { - drag->selected_move(mul*-10*nudge, 0); // shift - } else { - drag->selected_move(mul*-nudge, 0); // no shift - } - } - ret = TRUE; - } - break; - - case GDK_KEY_Up: // move handle up - case GDK_KEY_KP_Up: - case GDK_KEY_KP_8: - if (!MOD__CTRL(event)) { // not ctrl - gint mul = 1 + gobble_key_events( - get_group0_keyval(&event->key), 0); // with any mask - if (MOD__ALT(event)) { // alt - if (MOD__SHIFT(event)) { - drag->selected_move_screen(0, mul*10); // shift - } else { - drag->selected_move_screen(0, mul*1); // no shift - } - } else { // no alt - if (MOD__SHIFT(event)) { - drag->selected_move(0, mul*10*nudge); // shift - } else { - drag->selected_move(0, mul*nudge); // no shift - } - } - - ret = TRUE; - } - break; - - case GDK_KEY_Right: // move handle right - case GDK_KEY_KP_Right: - case GDK_KEY_KP_6: - if (!MOD__CTRL(event)) { // not ctrl - gint mul = 1 + gobble_key_events( - get_group0_keyval(&event->key), 0); // with any mask - - if (MOD__ALT(event)) { // alt - if (MOD__SHIFT(event)) { - drag->selected_move_screen(mul*10, 0); // shift - } else { - drag->selected_move_screen(mul*1, 0); // no shift - } - } else { // no alt - if (MOD__SHIFT(event)) { - drag->selected_move(mul*10*nudge, 0); // shift - } else { - drag->selected_move(mul*nudge, 0); // no shift - } - } - - ret = TRUE; - } - break; - - case GDK_KEY_Down: // move handle down - case GDK_KEY_KP_Down: - case GDK_KEY_KP_2: - if (!MOD__CTRL(event)) { // not ctrl - gint mul = 1 + gobble_key_events( - get_group0_keyval(&event->key), 0); // with any mask - - if (MOD__ALT(event)) { // alt - if (MOD__SHIFT(event)) { - drag->selected_move_screen(0, mul*-10); // shift - } else { - drag->selected_move_screen(0, mul*-1); // no shift - } - } else { // no alt - if (MOD__SHIFT(event)) { - drag->selected_move(0, mul*-10*nudge); // shift - } else { - drag->selected_move(0, mul*-nudge); // no shift - } - } - - ret = TRUE; - } - break; - - case GDK_KEY_r: - case GDK_KEY_R: - if (MOD__SHIFT_ONLY(event)) { - sp_gradient_reverse_selected_gradients(desktop); - ret = TRUE; - } - break; - - case GDK_KEY_Insert: - case GDK_KEY_KP_Insert: - // with any modifiers: - sp_gradient_context_add_stops_between_selected_stops (this); - ret = TRUE; - break; - - case GDK_KEY_Delete: - case GDK_KEY_KP_Delete: - case GDK_KEY_BackSpace: - ret = this->deleteSelectedDrag(MOD__CTRL_ONLY(event)); - 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: - this->defaultMessageContext()->clear(); - break; - - default: - break; - } - break; - - default: - break; - } - - if (!ret) { - ret = ToolBase::root_handler(event); - } - - return ret; -} - -static void sp_gradient_drag(GradientTool &rc, Geom::Point const pt, guint /*state*/, guint32 etime) -{ - SPDesktop *desktop = SP_EVENT_CONTEXT(&rc)->desktop; - Inkscape::Selection *selection = sp_desktop_selection(desktop); - SPDocument *document = sp_desktop_document(desktop); - ToolBase *ec = SP_EVENT_CONTEXT(&rc); - - if (!selection->isEmpty()) { - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - int type = prefs->getInt("/tools/gradient/newgradient", 1); - Inkscape::PaintTarget fill_or_stroke = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE; - - SPGradient *vector; - if (ec->item_to_select) { - // pick color from the object where drag started - vector = sp_gradient_vector_for_object(document, desktop, ec->item_to_select, fill_or_stroke); - } else { - // Starting from empty space: - // Sort items so that the topmost comes last - GSList *items = g_slist_copy ((GSList *) selection->itemList()); - items = g_slist_sort(items, (GCompareFunc) sp_item_repr_compare_position); - // take topmost - vector = sp_gradient_vector_for_object(document, desktop, SP_ITEM(g_slist_last(items)->data), fill_or_stroke); - g_slist_free (items); - } - - // HACK: reset fill-opacity - that 0.75 is annoying; BUT remove this when we have an opacity slider for all tabs - SPCSSAttr *css = sp_repr_css_attr_new(); - sp_repr_css_set_property(css, "fill-opacity", "1.0"); - - for (GSList const *i = selection->itemList(); i != NULL; i = i->next) { - - //FIXME: see above - sp_repr_css_change_recursive(SP_OBJECT(i->data)->getRepr(), css, "style"); - - sp_item_set_gradient(SP_ITEM(i->data), vector, (SPGradientType) type, fill_or_stroke); - - if (type == SP_GRADIENT_TYPE_LINEAR) { - sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_LG_BEGIN, 0, rc.origin, fill_or_stroke, true, false); - sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_LG_END, 0, pt, fill_or_stroke, true, false); - } else if (type == SP_GRADIENT_TYPE_RADIAL) { - sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_RG_CENTER, 0, rc.origin, fill_or_stroke, true, false); - sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_RG_R1, 0, pt, fill_or_stroke, true, false); - } - SP_OBJECT(i->data)->requestModified(SP_OBJECT_MODIFIED_FLAG); - } - if (ec->_grdrag) { - ec->_grdrag->updateDraggers(); - // prevent regenerating draggers by selection modified signal, which sometimes - // comes too late and thus destroys the knot which we will now grab: - ec->_grdrag->local_change = true; - // give the grab out-of-bounds values of xp/yp because we're already dragging - // and therefore are already out of tolerance - ec->_grdrag->grabKnot (SP_ITEM(selection->itemList()->data), - type == SP_GRADIENT_TYPE_LINEAR? POINT_LG_END : POINT_RG_R1, - -1, // ignore number (though it is always 1) - fill_or_stroke, 99999, 99999, etime); - } - // We did an undoable action, but SPDocumentUndo::done will be called by the knot when released - - // status text; we do not track coords because this branch is run once, not all the time - // during drag - int n_objects = g_slist_length((GSList *) selection->itemList()); - rc.message_context->setF(Inkscape::NORMAL_MESSAGE, - ngettext("<b>Gradient</b> for %d object; with <b>Ctrl</b> to snap angle", - "<b>Gradient</b> for %d objects; with <b>Ctrl</b> to snap angle", n_objects), - n_objects); - } else { - sp_desktop_message_stack(desktop)->flash(Inkscape::WARNING_MESSAGE, _("Select <b>objects</b> on which to create gradient.")); - } -} - -} -} -} - - -/* - 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 : |