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Diffstat (limited to 'src/ui/tools/mesh-tool.cpp')
| -rw-r--r-- | src/ui/tools/mesh-tool.cpp | 1017 |
1 files changed, 1017 insertions, 0 deletions
diff --git a/src/ui/tools/mesh-tool.cpp b/src/ui/tools/mesh-tool.cpp new file mode 100644 index 000000000..4e7617f44 --- /dev/null +++ b/src/ui/tools/mesh-tool.cpp @@ -0,0 +1,1017 @@ +/* + * Mesh drawing and editing tool + * + * Authors: + * bulia byak <buliabyak@users.sf.net> + * Johan Engelen <j.b.c.engelen@ewi.utwente.nl> + * Abhishek Sharma + * Tavmjong Bah <tavmjong@free.fr> + * + * Copyright (C) 2012 Tavmjong Bah + * 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 + +//#define DEBUG_MESH + + +// Libraries +#include <gdk/gdkkeysyms.h> +#include <glibmm/i18n.h> + +// General +#include "desktop.h" +#include "desktop-handles.h" +#include "document.h" +#include "document-undo.h" +#include "macros.h" +#include "message-context.h" +#include "message-stack.h" +#include "preferences.h" +#include "rubberband.h" +#include "selection.h" +#include "snap.h" +#include "sp-namedview.h" +#include "verbs.h" + +// Gradient specific +#include "gradient-drag.h" +#include "gradient-chemistry.h" +#include "pixmaps/cursor-gradient.xpm" +#include "pixmaps/cursor-gradient-add.xpm" + +// Mesh specific +#include "ui/tools/mesh-tool.h" +#include "sp-mesh-gradient.h" +#include "display/sp-ctrlcurve.h" + +using Inkscape::DocumentUndo; + +#include "tool-factory.h" + +namespace Inkscape { +namespace UI { +namespace Tools { + +static void sp_mesh_drag(MeshTool &rc, Geom::Point const pt, guint state, guint32 etime); + +namespace { + ToolBase* createMeshContext() { + return new MeshTool(); + } + + bool meshContextRegistered = ToolFactory::instance().registerObject("/tools/mesh", createMeshContext); +} + +const std::string& MeshTool::getPrefsPath() { + return MeshTool::prefsPath; +} + +const std::string MeshTool::prefsPath = "/tools/mesh"; + +MeshTool::MeshTool() : ToolBase() { + this->selcon = 0; + this->node_added = false; + this->subselcon = 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; +} + +MeshTool::~MeshTool() { + this->enableGrDrag(false); + + this->selcon->disconnect(); + delete this->selcon; + + this->subselcon->disconnect(); + delete this->subselcon; +} + +const gchar *ms_handle_descr [] = { + N_("Mesh gradient <b>corner</b>"), + N_("Mesh gradient <b>handle</b>"), + N_("Mesh gradient <b>tensor</b>") +}; + +void MeshTool::selection_changed(Inkscape::Selection* /*sel*/) { + GrDrag *drag = this->_grdrag; + Inkscape::Selection *selection = sp_desktop_selection(this->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 mesh handle"," out of %d mesh handles",n_tot), + ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL); + this->message_context->setF(Inkscape::NORMAL_MESSAGE, + message,_(ms_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 mesh handle"," out of %d mesh handles",n_tot), + ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL); + this->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 mesh handles. This is part of a compound message (part two indicates selected object count) + gchar * message = + g_strconcat(ngettext("<b>%d</b> mesh handle selected out of %d","<b>%d</b> mesh 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); + this->message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj); + } else if (n_sel == 0) { + this->message_context->setF(Inkscape::NORMAL_MESSAGE, + //TRANSLATORS: The plural refers to number of selected objects + ngettext("<b>No</b> mesh handles selected out of %d on %d selected object", + "<b>No</b> mesh handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj); + } + + // FIXME + // We need to update mesh gradient handles. + // Get gradient this drag belongs too.. + // std::cout << "mesh_selection_changed: selection: objects: " << n_obj << std::endl; + // GSList *itemList = (GSList *) selection->itemList(); + // while( itemList ) { + + // SPItem *item = SP_ITEM( itemList->data ); + // // std::cout << " item: " << SP_OBJECT(item)->getId() << std::endl; + + // SPStyle *style = item->style; + // if (style && (style->fill.isPaintserver())) { + + // SPPaintServer *server = item->style->getFillPaintServer(); + // if ( SP_IS_MESHGRADIENT(server) ) { + + // SPMeshGradient *mg = SP_MESHGRADIENT(server); + + // guint rows = 0;//mg->array.patches.size(); + // for ( guint i = 0; i < rows; ++i ) { + // guint columns = 0;//mg->array.patches[0].size(); + // for ( guint j = 0; j < columns; ++j ) { + // } + // } + // } + // } + // itemList = itemList->next; + // } + + // GList* dragger_ptr = drag->draggers; // Points to GrDragger class (group of GrDraggable) + // guint count = 0; + // while( dragger_ptr ) { + + // std::cout << "mesh_selection_changed: dragger: " << ++count << std::endl; + // GSList* draggable_ptr = ((GrDragger *) dragger_ptr->data)->draggables; + + // while( draggable_ptr ) { + + // std::cout << "mesh_selection_changed: draggable: " << draggable_ptr << std::endl; + // GrDraggable *draggable = (GrDraggable *) draggable_ptr->data; + + // gint point_type = draggable->point_type; + // gint point_i = draggable->point_i; + // bool fill_or_stroke = draggable->fill_or_stroke; + + // if( point_type == POINT_MG_CORNER ) { + + // //std::cout << "mesh_selection_changed: POINT_MG_CORNER: " << point_i << std::endl; + // // Now we must create or destroy corresponding handles. + + // if( g_list_find( drag->selected, dragger_ptr->data ) ) { + // //std::cout << "gradient_selection_changed: Selected: " << point_i << std::endl; + // // Which meshes does this point belong to? + + // } else { + // //std::cout << "mesh_selection_changed: Not Selected: " << point_i << std::endl; + // } + // } + + // draggable_ptr = draggable_ptr->next; + + // } + + // dragger_ptr = dragger_ptr->next; + // } +} + +void MeshTool::setup() { + ToolBase::setup(); + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + if (prefs->getBool("/tools/mesh/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, &MeshTool::selection_changed) + )); + + this->subselcon = new sigc::connection(this->desktop->connectToolSubselectionChanged( + sigc::hide(sigc::bind( + sigc::mem_fun(*this, &MeshTool::selection_changed), + (Inkscape::Selection*)NULL) + ) + )); + + this->selection_changed(selection); +} + +void +sp_mesh_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_mesh_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); +} + +/** +Returns true if mouse cursor over mesh edge. +*/ +static bool +sp_mesh_context_is_over_line (MeshTool *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); + + SPCtrlCurve *curve = SP_CTRLCURVE(item); + Geom::BezierCurveN<3> b( curve->p0, curve->p1, curve->p2, curve->p3 ); + Geom::Coord coord = b.nearestPoint( rc->mousepoint_doc ); // Coord == double + Geom::Point nearest = b( coord ); + + 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; +} + + +/** +Split row/column near the mouse point. +*/ +static void sp_mesh_context_split_near_point(MeshTool *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/) +{ + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_split_near_point: entrance: " << mouse_p << std::endl; +#endif + + // 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; + + ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom()); + + DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_MESH, + _("Split mesh row/column")); + + ec->get_drag()->updateDraggers(); +} + +/** +Wrapper for various mesh operations that require a list of selected corner nodes. + */ +static void +sp_mesh_context_corner_operation (MeshTool *rc, MeshCornerOperation operation ) +{ + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_corner_operation: entrance: " << operation << std::endl; +#endif + + SPDocument *doc = NULL; + GrDrag *drag = rc->_grdrag; + + std::map<SPMeshGradient*, std::vector<guint> > points; + std::map<SPMeshGradient*, SPItem*> items; + + // Get list of selected draggers for each mesh. + // For all selected draggers + for (GList *i = drag->selected; i != NULL; i = i->next) { + GrDragger *dragger = (GrDragger *) i->data; + // For all draggables of dragger + for (GSList const* j = dragger->draggables; j != NULL; j = j->next) { + GrDraggable *d = (GrDraggable *) j->data; + + // Only mesh corners + if( d->point_type != POINT_MG_CORNER ) continue; + + // Find the gradient + SPMeshGradient *gradient = SP_MESHGRADIENT( getGradient (d->item, d->fill_or_stroke) ); + + // Collect points together for same gradient + points[gradient].push_back( d->point_i ); + items[gradient] = d->item; + } + } + + // Loop over meshes. + for( std::map<SPMeshGradient*, std::vector<guint> >::const_iterator iter = points.begin(); iter != points.end(); ++iter) { + SPMeshGradient *mg = SP_MESHGRADIENT( iter->first ); + if( iter->second.size() > 0 ) { + guint noperation = 0; + switch (operation) { + + case MG_CORNER_SIDE_TOGGLE: + // std::cout << "SIDE_TOGGLE" << std::endl; + noperation += mg->array.side_toggle( iter->second ); + break; + + case MG_CORNER_SIDE_ARC: + // std::cout << "SIDE_ARC" << std::endl; + noperation += mg->array.side_arc( iter->second ); + break; + + case MG_CORNER_TENSOR_TOGGLE: + // std::cout << "TENSOR_TOGGLE" << std::endl; + noperation += mg->array.tensor_toggle( iter->second ); + break; + + case MG_CORNER_COLOR_SMOOTH: + // std::cout << "COLOR_SMOOTH" << std::endl; + noperation += mg->array.color_smooth( iter->second ); + break; + + case MG_CORNER_COLOR_PICK: + // std::cout << "COLOR_PICK" << std::endl; + noperation += mg->array.color_pick( iter->second, items[iter->first] ); + break; + + default: + std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl; + } + + if( noperation > 0 ) { + mg->array.write( mg ); + mg->requestModified(SP_OBJECT_MODIFIED_FLAG); + doc = mg->document; + + switch (operation) { + + case MG_CORNER_SIDE_TOGGLE: + DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh path type.")); + break; + + case MG_CORNER_SIDE_ARC: + DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Approximated arc for mesh side.")); + break; + + case MG_CORNER_TENSOR_TOGGLE: + DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh tensors.")); + break; + + case MG_CORNER_COLOR_SMOOTH: + DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Smoothed mesh corner color.")); + break; + + case MG_CORNER_COLOR_PICK: + DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Picked mesh corner color.")); + break; + + default: + std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl; + } + } + } + } + drag->updateDraggers(); + +} + + +/** +Handles all keyboard and mouse input for meshs. +*/ +bool MeshTool::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: + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_2BUTTON_PRESS" << std::endl; +#endif + + // Double click: + // If over a mesh line, divide mesh row/column + // If not over a line, create new gradients for selected objects. + + if ( event->button.button == 1 ) { + // Are we over a mesh line? + bool over_line = false; + SPCtrlCurve *line = NULL; + + if (drag->lines) { + for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) { + line = (SPCtrlCurve*) l->data; + over_line |= sp_mesh_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_mesh_context_split_near_point(this, SP_ITEM(selection->itemList()->data), this->mousepoint_doc, event->button.time); + } else { + // Create a new gradient with default coordinates. + for (GSList const* i = selection->itemList(); i != NULL; i = i->next) { + SPItem *item = SP_ITEM(i->data); + SPGradientType new_type = SP_GRADIENT_TYPE_MESH; + Inkscape::PaintTarget fsmode = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE; + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: creating new mesh on: " << (fsmode == Inkscape::FOR_FILL ? "Fill" : "Stroke") << std::endl; +#endif + 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_MESH, + _("Create default mesh")); + } + + ret = TRUE; + } + break; + + case GDK_BUTTON_PRESS: + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_PRESS" << std::endl; +#endif + // Button down + // If Shift key down: do rubber band selection + // Else set origin for drag. A drag creates a new gradient if one does not exist + 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: + // Mouse move + if ( dragging && ( event->motion.state & GDK_BUTTON1_MASK ) && !this->space_panning ) { + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_MOTION_NOTIFY: Dragging" << std::endl; +#endif + 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 { + // Create new gradient with coordinates determined by drag. + sp_mesh_drag(*this, motion_dt, event->motion.state, event->motion.time); + } + + gobble_motion_events(GDK_BUTTON1_MASK); + + ret = TRUE; + } else { + // Not dragging + + // Do snapping + 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(); + } + + // Highlight corner node corresponding to side or tensor node + if( drag->mouseOver() ) { + // MESH FIXME: Light up corresponding corner node corresponding to node we are over. + // See "pathflash" in ui/tools/node-tool.cpp for ideas. + // Use desktop->add_temporary_canvasitem( SPCanvasItem, milliseconds ); + } + + // Change cursor shape if over line + bool over_line = false; + + if (drag->lines) { + for (GSList *l = drag->lines; l != NULL; l = l->next) { + over_line |= sp_mesh_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: + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_RELEASE" << std::endl; +#endif + + this->xp = this->yp = 0; + + if ( event->button.button == 1 && !this->space_panning ) { + // Check if over line + 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_mesh_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_mesh_context_split_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 mesh line, don't 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 { + 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: + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_KEY_PRESS" << std::endl; +#endif + + // FIXME: tip + 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, + _("FIXME<b>Ctrl</b>: snap mesh angle"), + _("FIXME<b>Shift</b>: draw mesh around the starting point"), + NULL); + break; + + case GDK_KEY_A: + case GDK_KEY_a: + if (MOD__CTRL_ONLY(event) && drag->isNonEmpty()) { + drag->selectAll(); + ret = TRUE; + } + break; + + case GDK_KEY_Escape: + if (drag->selected) { + drag->deselectAll(); + } else { + selection->clear(); + } + + 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_Insert: + case GDK_KEY_KP_Insert: + // with any modifiers: + //sp_gradient_context_add_stops_between_selected_stops (rc); + std::cout << "Inserting stops between selected stops not implemented yet" << std::endl; + ret = TRUE; + break; + + case GDK_KEY_Delete: + case GDK_KEY_KP_Delete: + case GDK_KEY_BackSpace: + if ( drag->selected ) { + std::cout << "Deleting mesh stops not implemented yet" << std::endl; + ret = TRUE; + } + break; + + // Mesh Operations -------------------------------------------- + + case GDK_KEY_b: // Toggle mesh side between lineto and curveto. + case GDK_KEY_B: + if (MOD__ALT(event) && drag->isNonEmpty() && drag->hasSelection()) { + sp_mesh_context_corner_operation ( this, MG_CORNER_SIDE_TOGGLE ); + ret = TRUE; + } + break; + + case GDK_KEY_c: // Convert mesh side from generic Bezier to Bezier approximating arc, + case GDK_KEY_C: // preserving handle direction. + if (MOD__ALT(event) && drag->isNonEmpty() && drag->hasSelection()) { + sp_mesh_context_corner_operation ( this, MG_CORNER_SIDE_ARC ); + ret = TRUE; + } + break; + + case GDK_KEY_g: // Toggle mesh tensor points on/off + case GDK_KEY_G: + if (MOD__ALT(event) && drag->isNonEmpty() && drag->hasSelection()) { + sp_mesh_context_corner_operation ( this, MG_CORNER_TENSOR_TOGGLE ); + ret = TRUE; + } + break; + + case GDK_KEY_j: // Smooth corner color + case GDK_KEY_J: + if (MOD__ALT(event) && drag->isNonEmpty() && drag->hasSelection()) { + sp_mesh_context_corner_operation ( this, MG_CORNER_COLOR_SMOOTH ); + ret = TRUE; + } + break; + + case GDK_KEY_k: // Pick corner color + case GDK_KEY_K: + if (MOD__ALT(event) && drag->isNonEmpty() && drag->hasSelection()) { + sp_mesh_context_corner_operation ( this, MG_CORNER_COLOR_PICK ); + ret = TRUE; + } + break; + + default: + break; + } + + break; + + case GDK_KEY_RELEASE: + +#ifdef DEBUG_MESH + std::cout << "sp_mesh_context_root_handler: GDK_KEY_RELEASE" << std::endl; +#endif + 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_mesh_drag(MeshTool &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 = SP_GRADIENT_TYPE_MESH; + 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); + + // We don't need to do anything. Mesh is already sized appropriately. + + 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 : |