#define __SP_DESKTOP_EVENTS_C__ /* * Event handlers for SPDesktop * * Author: * Lauris Kaplinski * * Copyright (C) 1999-2002 Lauris Kaplinski * * Released under GNU GPL, read the file 'COPYING' for more information */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include "display/guideline.h" #include "display/snap-indicator.h" #include "helper/unit-menu.h" #include "helper/units.h" #include "desktop.h" #include "document.h" #include "sp-guide.h" #include "sp-namedview.h" #include "desktop-handles.h" #include "event-context.h" #include "widgets/desktop-widget.h" #include "sp-metrics.h" #include #include "dialogs/dialog-events.h" #include "message-context.h" #include "xml/repr.h" #include "dialogs/guidelinedialog.h" #include "snap.h" #include "display/canvas-grid.h" #include "display/canvas-axonomgrid.h" #include "prefs-utils.h" #include "helper/action.h" #include "tools-switch.h" #include <2geom/point.h> static void snoop_extended(GdkEvent* event, SPDesktop *desktop); static void init_extended(); /* Root item handler */ int sp_desktop_root_handler(SPCanvasItem */*item*/, GdkEvent *event, SPDesktop *desktop) { static bool watch = false; static bool first = true; if ( first ) { if ( prefs_get_int_attribute("options.useextinput", "value", 1) && prefs_get_int_attribute("options.switchonextinput", "value", 0) ) { watch = true; init_extended(); } first = false; } if ( watch ) { snoop_extended(event, desktop); } return sp_event_context_root_handler(desktop->event_context, event); } static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw, bool horiz) { static bool dragging = false; static SPCanvasItem *guide = NULL; static Geom::Point normal; int wx, wy; SPDesktop *desktop = dtw->desktop; Inkscape::XML::Node *repr = SP_OBJECT_REPR(desktop->namedview); gdk_window_get_pointer(GTK_WIDGET(dtw->canvas)->window, &wx, &wy, NULL); NR::Point const event_win(wx, wy); gint width, height; gdk_window_get_geometry(GTK_WIDGET(dtw->canvas)->window, NULL /*x*/, NULL /*y*/, &width, &height, NULL/*depth*/); switch (event->type) { case GDK_BUTTON_PRESS: if (event->button.button == 1) { dragging = true; NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win)); NR::Point const event_dt(desktop->w2d(event_w)); // explicitly show guidelines; if I draw a guide, I want them on sp_repr_set_boolean(repr, "showguides", TRUE); sp_repr_set_boolean(repr, "inkscape:guide-bbox", TRUE); // calculate the normal of the guidelines when dragged from the edges of rulers. Geom::Point normal_bl_to_tr(-1.,1.); //bottomleft to topright Geom::Point normal_tr_to_bl(1.,1.); //topright to bottomleft normal_bl_to_tr.normalize(); normal_tr_to_bl.normalize(); Inkscape::CanvasGrid * grid = sp_namedview_get_first_enabled_grid(desktop->namedview); if ( grid && grid->getGridType() == Inkscape::GRID_AXONOMETRIC ) { Inkscape::CanvasAxonomGrid *axonomgrid = dynamic_cast(grid); if (event->button.state & GDK_CONTROL_MASK) { // guidelines normal to gridlines normal_bl_to_tr = Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0); normal_tr_to_bl = Geom::Point::polar(axonomgrid->angle_rad[2], 1.0); } else { normal_bl_to_tr = rot90(Geom::Point::polar(axonomgrid->angle_rad[2], 1.0)); normal_tr_to_bl = rot90(Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0)); } } if (horiz) { if (wx < 50) { normal = normal_bl_to_tr; } else if (wx > width - 50) { normal = normal_tr_to_bl; } else { normal = Geom::Point(0.,1.); } } else { if (wy < 50) { normal = normal_bl_to_tr; } else if (wy > height - 50) { normal = normal_tr_to_bl; } else { normal = Geom::Point(1.,0.); } } guide = sp_guideline_new(desktop->guides, event_dt.to_2geom(), normal); sp_guideline_set_color(SP_GUIDELINE(guide), desktop->namedview->guidehicolor); gdk_pointer_grab(widget->window, FALSE, (GdkEventMask)(GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK ), NULL, NULL, event->button.time); } break; case GDK_MOTION_NOTIFY: if (dragging) { NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win)); NR::Point event_dt(desktop->w2d(event_w)); SnapManager &m = desktop->namedview->snap_manager; m.setup(desktop); m.guideSnap(event_dt, normal); sp_guideline_set_position(SP_GUIDELINE(guide), event_dt.to_2geom()); desktop->set_coordinate_status(event_dt); desktop->setPosition (event_dt); } break; case GDK_BUTTON_RELEASE: if (dragging && event->button.button == 1) { gdk_pointer_ungrab(event->button.time); NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win)); NR::Point event_dt(desktop->w2d(event_w)); SnapManager &m = desktop->namedview->snap_manager; m.setup(desktop); m.guideSnap(event_dt, normal); dragging = false; gtk_object_destroy(GTK_OBJECT(guide)); guide = NULL; if ((horiz ? wy : wx) >= 0) { Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc()); Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide"); sp_repr_set_point(repr, "orientation", normal); sp_repr_set_point(repr, "position", event_dt.to_2geom()); SP_OBJECT_REPR(desktop->namedview)->appendChild(repr); Inkscape::GC::release(repr); sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE, _("Create guide")); } desktop->set_coordinate_status(event_dt); } default: break; } return FALSE; } int sp_dt_hruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw) { return sp_dt_ruler_event(widget, event, dtw, true); } int sp_dt_vruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw) { return sp_dt_ruler_event(widget, event, dtw, false); } /* Guides */ gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data) { static bool dragging = false; static bool moved = false; gint ret = FALSE; SPGuide *guide = SP_GUIDE(data); SPDesktop *desktop = static_cast(gtk_object_get_data(GTK_OBJECT(item->canvas), "SPDesktop")); switch (event->type) { case GDK_2BUTTON_PRESS: if (event->button.button == 1) { dragging = false; sp_canvas_item_ungrab(item, event->button.time); Inkscape::UI::Dialogs::GuidelinePropertiesDialog::showDialog(guide, desktop); ret = TRUE; } break; case GDK_BUTTON_PRESS: if (event->button.button == 1) { if (event->button.state & GDK_CONTROL_MASK) { SPDocument *doc = SP_OBJECT_DOCUMENT(guide); sp_guide_remove(guide); sp_document_done(doc, SP_VERB_NONE, _("Delete guide")); ret = TRUE; break; } dragging = true; sp_canvas_item_grab(item, ( GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK ), NULL, event->button.time); ret = TRUE; } break; case GDK_MOTION_NOTIFY: if (dragging) { NR::Point const motion_w(event->motion.x, event->motion.y); NR::Point motion_dt(desktop->w2d(motion_w)); // This is for snapping while dragging existing guidelines. New guidelines, // which are dragged off the ruler, are being snapped in sp_dt_ruler_event SnapManager &m = desktop->namedview->snap_manager; m.setup(desktop); m.guideSnap(motion_dt, guide->normal_to_line); sp_guide_moveto(*guide, motion_dt.to_2geom(), false); moved = true; desktop->set_coordinate_status(motion_dt); desktop->setPosition (motion_dt); ret = TRUE; } break; case GDK_BUTTON_RELEASE: if (dragging && event->button.button == 1) { if (moved) { NR::Point const event_w(event->button.x, event->button.y); NR::Point event_dt(desktop->w2d(event_w)); SnapManager &m = desktop->namedview->snap_manager; m.setup(desktop); m.guideSnap(event_dt, guide->normal_to_line); if (sp_canvas_world_pt_inside_window(item->canvas, event_w)) { sp_guide_moveto(*guide, event_dt.to_2geom(), true); sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE, _("Move guide")); } else { /* Undo movement of any attached shapes. */ sp_guide_moveto(*guide, guide->point_on_line, false); sp_guide_remove(guide); sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE, _("Delete guide")); } moved = false; desktop->set_coordinate_status(event_dt); desktop->setPosition (event_dt); } dragging = false; sp_canvas_item_ungrab(item, event->button.time); ret=TRUE; } case GDK_ENTER_NOTIFY: { sp_guideline_set_color(SP_GUIDELINE(item), guide->hicolor); char *guide_description = sp_guide_description(guide); desktop->guidesMessageContext()->setF(Inkscape::NORMAL_MESSAGE, _("Guideline: %s"), guide_description); g_free(guide_description); break; } case GDK_LEAVE_NOTIFY: sp_guideline_set_color(SP_GUIDELINE(item), guide->color); desktop->guidesMessageContext()->clear(); break; default: break; } return ret; } static std::map switchMap; static std::map toolToUse; static std::string lastName; static GdkInputSource lastType = GDK_SOURCE_MOUSE; static void init_extended() { std::string avoidName = "pad"; GList* devices = gdk_devices_list(); if ( devices ) { for ( GList* curr = devices; curr; curr = g_list_next(curr) ) { GdkDevice* dev = reinterpret_cast(curr->data); if ( dev->name && (avoidName != dev->name) && (switchMap.find(dev->source) == switchMap.end()) && (dev->source != GDK_SOURCE_MOUSE) ) { switchMap[dev->source] = dev->name; // g_message("Adding '%s' as [%d]", dev->name, dev->source); // Set the initial tool for the device switch ( dev->source ) { case GDK_SOURCE_PEN: toolToUse[GDK_SOURCE_PEN] = TOOLS_CALLIGRAPHIC; break; case GDK_SOURCE_ERASER: toolToUse[GDK_SOURCE_ERASER] = TOOLS_ERASER; break; case GDK_SOURCE_CURSOR: toolToUse[GDK_SOURCE_CURSOR] = TOOLS_SELECT; break; default: ; // do not add } // } else { // g_message("Skippn '%s' as [%s]", dev->name, namefor(dev->source)); } } } } void snoop_extended(GdkEvent* event, SPDesktop *desktop) { GdkInputSource source = GDK_SOURCE_MOUSE; std::string name; switch ( event->type ) { case GDK_MOTION_NOTIFY: { GdkEventMotion* event2 = reinterpret_cast(event); if ( event2->device ) { source = event2->device->source; name = event2->device->name; } } break; case GDK_BUTTON_PRESS: case GDK_2BUTTON_PRESS: case GDK_3BUTTON_PRESS: case GDK_BUTTON_RELEASE: { GdkEventButton* event2 = reinterpret_cast(event); if ( event2->device ) { source = event2->device->source; name = event2->device->name; } } break; case GDK_SCROLL: { GdkEventScroll* event2 = reinterpret_cast(event); if ( event2->device ) { source = event2->device->source; name = event2->device->name; } } break; case GDK_PROXIMITY_IN: case GDK_PROXIMITY_OUT: { GdkEventProximity* event2 = reinterpret_cast(event); if ( event2->device ) { source = event2->device->source; name = event2->device->name; } } break; default: ; } if (!name.empty()) { if ( lastName != name || lastType != source ) { // The device switched. See if it is one we 'count' std::map::iterator it = switchMap.find(source); if ( (it != switchMap.end()) && (name == it->second) ) { std::map::iterator it2 = toolToUse.find(source); if (it2 != toolToUse.end() ) { // Save the tool currently selected for next time the input device shows up. if ( (switchMap.find(lastType) != switchMap.end()) && (lastName == switchMap.find(lastType)->second)) { toolToUse[lastType] = tools_active(desktop); } tools_switch(desktop, it2->second); } lastName = name; lastType = source; } } } } /* 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:encoding=utf-8:textwidth=99 :