From c04e30df241a3ee039077425bab9b9c37abe2854 Mon Sep 17 00:00:00 2001 From: Markus Engel Date: Sat, 9 Nov 2013 23:36:13 +0100 Subject: Moved and renamed some tool-related files. (bzr r12785) --- src/ui/tools/gradient-tool.cpp | 977 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 977 insertions(+) create mode 100644 src/ui/tools/gradient-tool.cpp (limited to 'src/ui/tools/gradient-tool.cpp') diff --git a/src/ui/tools/gradient-tool.cpp b/src/ui/tools/gradient-tool.cpp new file mode 100644 index 000000000..e4ab7b424 --- /dev/null +++ b/src/ui/tools/gradient-tool.cpp @@ -0,0 +1,977 @@ +/* + * Gradient drawing and editing tool + * + * Authors: + * bulia byak + * Johan Engelen + * 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 + +#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 "ui/tools/gradient-tool.h" +#include "gradient-chemistry.h" +#include +#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 start"), //POINT_LG_BEGIN + N_("Linear gradient end"), + N_("Linear gradient mid stop"), + N_("Radial gradient center"), + N_("Radial gradient radius"), + N_("Radial gradient radius"), + N_("Radial gradient focus"), // POINT_RG_FOCUS + N_("Radial gradient mid stop"), + N_("Radial gradient mid stop") +}; + +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 Shift to separate) selected", + "One handle merging %d stops (drag with Shift 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("%d gradient handle selected out of %d","%d 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("No gradient handles selected out of %d on %d selected object", + "No 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 +sp_gradient_context_get_stop_intervals (GrDrag *drag, GSList **these_stops, GSList **next_stops) +{ + std::vector 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 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 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, _("Draw around 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, + _("Ctrl: snap gradient angle"), + _("Shift: 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("Gradient for %d object; with Ctrl to snap angle", + "Gradient for %d objects; with Ctrl to snap angle", n_objects), + n_objects); + } else { + sp_desktop_message_stack(desktop)->flash(Inkscape::WARNING_MESSAGE, _("Select objects 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 : -- cgit v1.2.3