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-rw-r--r--src/text-context.cpp1537
1 files changed, 1537 insertions, 0 deletions
diff --git a/src/text-context.cpp b/src/text-context.cpp
new file mode 100644
index 000000000..a181f4f6f
--- /dev/null
+++ b/src/text-context.cpp
@@ -0,0 +1,1537 @@
+#define __SP_TEXT_CONTEXT_C__
+
+/*
+ * SPTextContext
+ *
+ * Authors:
+ * Lauris Kaplinski <lauris@kaplinski.com>
+ * bulia byak <buliabyak@users.sf.net>
+ *
+ * Copyright (C) 1999-2005 authors
+ * Copyright (C) 2001 Ximian, Inc.
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gdk/gdkkeysyms.h>
+#include <gtk/gtkmain.h>
+#include <display/sp-ctrlline.h>
+#include <display/sodipodi-ctrlrect.h>
+#include <display/sp-ctrlquadr.h>
+#include <gtk/gtkimmulticontext.h>
+#include <gtkmm/clipboard.h>
+
+#include "macros.h"
+#include "sp-text.h"
+#include "sp-flowtext.h"
+#include "document.h"
+#include "sp-namedview.h"
+#include "style.h"
+#include "selection.h"
+#include "desktop.h"
+#include "desktop-style.h"
+#include "desktop-handles.h"
+#include "desktop-affine.h"
+#include "message-stack.h"
+#include "message-context.h"
+#include "pixmaps/cursor-text.xpm"
+#include "pixmaps/cursor-text-insert.xpm"
+#include <glibmm/i18n.h>
+#include "object-edit.h"
+#include "xml/repr.h"
+#include "xml/node-event-vector.h"
+#include "prefs-utils.h"
+#include "rubberband.h"
+#include "sp-metrics.h"
+#include "context-fns.h"
+
+#include "text-editing.h"
+
+#include "text-context.h"
+
+
+static void sp_text_context_class_init(SPTextContextClass *klass);
+static void sp_text_context_init(SPTextContext *text_context);
+static void sp_text_context_dispose(GObject *obj);
+
+static void sp_text_context_setup(SPEventContext *ec);
+static void sp_text_context_finish(SPEventContext *ec);
+static gint sp_text_context_root_handler(SPEventContext *event_context, GdkEvent *event);
+static gint sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
+
+static void sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc);
+static void sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc);
+static bool sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc);
+static int sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc);
+
+static void sp_text_context_validate_cursor_iterators(SPTextContext *tc);
+static void sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see = true);
+static void sp_text_context_update_text_selection(SPTextContext *tc);
+static gint sp_text_context_timeout(SPTextContext *tc);
+static void sp_text_context_forget_text(SPTextContext *tc);
+
+static gint sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
+static gint sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
+static void sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc);
+
+static SPEventContextClass *parent_class;
+
+GType
+sp_text_context_get_type()
+{
+ static GType type = 0;
+ if (!type) {
+ GTypeInfo info = {
+ sizeof(SPTextContextClass),
+ NULL, NULL,
+ (GClassInitFunc) sp_text_context_class_init,
+ NULL, NULL,
+ sizeof(SPTextContext),
+ 4,
+ (GInstanceInitFunc) sp_text_context_init,
+ NULL, /* value_table */
+ };
+ type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPTextContext", &info, (GTypeFlags)0);
+ }
+ return type;
+}
+
+static void
+sp_text_context_class_init(SPTextContextClass *klass)
+{
+ GObjectClass *object_class=(GObjectClass *)klass;
+ SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
+
+ parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
+
+ object_class->dispose = sp_text_context_dispose;
+
+ event_context_class->setup = sp_text_context_setup;
+ event_context_class->finish = sp_text_context_finish;
+ event_context_class->root_handler = sp_text_context_root_handler;
+ event_context_class->item_handler = sp_text_context_item_handler;
+}
+
+static void
+sp_text_context_init(SPTextContext *tc)
+{
+ SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
+
+ event_context->cursor_shape = cursor_text_xpm;
+ event_context->hot_x = 7;
+ event_context->hot_y = 7;
+
+ event_context->xp = 0;
+ event_context->yp = 0;
+ event_context->tolerance = 0;
+ event_context->within_tolerance = false;
+
+ event_context->shape_repr = NULL;
+ event_context->shape_knot_holder = NULL;
+
+ tc->imc = NULL;
+
+ tc->text = NULL;
+ tc->pdoc = NR::Point(0, 0);
+ new (&tc->text_sel_start) Inkscape::Text::Layout::iterator();
+ new (&tc->text_sel_end) Inkscape::Text::Layout::iterator();
+ new (&tc->text_selection_quads) std::vector<SPCanvasItem*>();
+
+ tc->unimode = false;
+
+ tc->cursor = NULL;
+ tc->indicator = NULL;
+ tc->frame = NULL;
+ tc->grabbed = NULL;
+ tc->timeout = 0;
+ tc->show = FALSE;
+ tc->phase = 0;
+ tc->nascent_object = 0;
+ tc->over_text = 0;
+ tc->dragging = 0;
+ tc->creating = 0;
+
+ new (&tc->sel_changed_connection) sigc::connection();
+ new (&tc->sel_modified_connection) sigc::connection();
+ new (&tc->style_set_connection) sigc::connection();
+ new (&tc->style_query_connection) sigc::connection();
+}
+
+static void
+sp_text_context_dispose(GObject *obj)
+{
+ SPTextContext *tc = SP_TEXT_CONTEXT(obj);
+ SPEventContext *ec = SP_EVENT_CONTEXT(tc);
+ tc->style_query_connection.~connection();
+ tc->style_set_connection.~connection();
+ tc->sel_changed_connection.~connection();
+ tc->sel_modified_connection.~connection();
+ tc->text_sel_end.~iterator();
+ tc->text_sel_start.~iterator();
+ tc->text_selection_quads.~vector();
+ if (G_OBJECT_CLASS(parent_class)->dispose) {
+ G_OBJECT_CLASS(parent_class)->dispose(obj);
+ }
+ if (tc->grabbed) {
+ sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
+ tc->grabbed = NULL;
+ }
+
+ Inkscape::Rubberband::get()->stop();
+
+ if (ec->shape_knot_holder) {
+ sp_knot_holder_destroy(ec->shape_knot_holder);
+ ec->shape_knot_holder = NULL;
+ }
+ if (ec->shape_repr) { // remove old listener
+ sp_repr_remove_listener_by_data(ec->shape_repr, ec);
+ Inkscape::GC::release(ec->shape_repr);
+ ec->shape_repr = 0;
+ }
+}
+
+static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
+ NULL, /* child_added */
+ NULL, /* child_removed */
+ ec_shape_event_attr_changed,
+ NULL, /* content_changed */
+ NULL /* order_changed */
+};
+
+static void
+sp_text_context_setup(SPEventContext *ec)
+{
+ SPTextContext *tc = SP_TEXT_CONTEXT(ec);
+ SPDesktop *desktop = ec->desktop;
+
+ tc->cursor = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLLINE, NULL);
+ sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), 100, 0, 100, 100);
+ sp_ctrlline_set_rgba32(SP_CTRLLINE(tc->cursor), 0x000000ff);
+ sp_canvas_item_hide(tc->cursor);
+
+ tc->indicator = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLRECT, NULL);
+ SP_CTRLRECT(tc->indicator)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
+ SP_CTRLRECT(tc->indicator)->setColor(0x0000ff7f, false, 0);
+ sp_canvas_item_hide(tc->indicator);
+
+ tc->frame = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLRECT, NULL);
+ SP_CTRLRECT(tc->frame)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
+ SP_CTRLRECT(tc->frame)->setColor(0x0000ff7f, false, 0);
+ sp_canvas_item_hide(tc->frame);
+
+ tc->timeout = gtk_timeout_add(250, (GtkFunction) sp_text_context_timeout, ec);
+
+ tc->imc = gtk_im_multicontext_new();
+ if (tc->imc) {
+ GtkWidget *canvas = GTK_WIDGET(SP_DT_CANVAS(desktop));
+
+ /* im preedit handling is very broken in inkscape for
+ * multi-byte characters. See bug 1086769.
+ * We need to let the IM handle the preediting, and
+ * just take in the characters when they're finished being
+ * entered.
+ */
+ gtk_im_context_set_use_preedit(tc->imc, FALSE);
+ gtk_im_context_set_client_window(tc->imc, canvas->window);
+
+ g_signal_connect(G_OBJECT(canvas), "focus_in_event", G_CALLBACK(sptc_focus_in), tc);
+ g_signal_connect(G_OBJECT(canvas), "focus_out_event", G_CALLBACK(sptc_focus_out), tc);
+ g_signal_connect(G_OBJECT(tc->imc), "commit", G_CALLBACK(sptc_commit), tc);
+
+ if (GTK_WIDGET_HAS_FOCUS(canvas)) {
+ sptc_focus_in(canvas, NULL, tc);
+ }
+ }
+
+ if (((SPEventContextClass *) parent_class)->setup)
+ ((SPEventContextClass *) parent_class)->setup(ec);
+
+ SPItem *item = SP_DT_SELECTION(ec->desktop)->singleItem();
+ if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
+ ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
+ Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
+ if (shape_repr) {
+ ec->shape_repr = shape_repr;
+ Inkscape::GC::anchor(shape_repr);
+ sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
+ sp_repr_synthesize_events(shape_repr, &ec_shape_repr_events, ec);
+ }
+ }
+
+ tc->sel_changed_connection = SP_DT_SELECTION(desktop)->connectChanged(
+ sigc::bind(sigc::ptr_fun(&sp_text_context_selection_changed), tc)
+ );
+ tc->sel_modified_connection = SP_DT_SELECTION(desktop)->connectModified(
+ sigc::bind(sigc::ptr_fun(&sp_text_context_selection_modified), tc)
+ );
+ tc->style_set_connection = desktop->connectSetStyle(
+ sigc::bind(sigc::ptr_fun(&sp_text_context_style_set), tc)
+ );
+ tc->style_query_connection = desktop->connectQueryStyle(
+ sigc::bind(sigc::ptr_fun(&sp_text_context_style_query), tc)
+ );
+
+ sp_text_context_selection_changed(SP_DT_SELECTION(desktop), tc);
+
+ if (prefs_get_int_attribute("tools.text", "selcue", 0) != 0) {
+ ec->enableSelectionCue();
+ }
+ if (prefs_get_int_attribute("tools.text", "gradientdrag", 0) != 0) {
+ ec->enableGrDrag();
+ }
+}
+
+static void
+sp_text_context_finish(SPEventContext *ec)
+{
+ SPTextContext *tc = SP_TEXT_CONTEXT(ec);
+
+ ec->enableGrDrag(false);
+
+ tc->style_set_connection.disconnect();
+ tc->style_query_connection.disconnect();
+ tc->sel_changed_connection.disconnect();
+ tc->sel_modified_connection.disconnect();
+
+ sp_text_context_forget_text(SP_TEXT_CONTEXT(ec));
+
+ if (tc->imc) {
+ g_object_unref(G_OBJECT(tc->imc));
+ tc->imc = NULL;
+ }
+
+ if (tc->timeout) {
+ gtk_timeout_remove(tc->timeout);
+ tc->timeout = 0;
+ }
+
+ if (tc->cursor) {
+ gtk_object_destroy(GTK_OBJECT(tc->cursor));
+ tc->cursor = NULL;
+ }
+
+ if (tc->indicator) {
+ gtk_object_destroy(GTK_OBJECT(tc->indicator));
+ tc->indicator = NULL;
+ }
+
+ if (tc->frame) {
+ gtk_object_destroy(GTK_OBJECT(tc->frame));
+ tc->frame = NULL;
+ }
+
+ for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ;
+ it != tc->text_selection_quads.end() ; ++it) {
+ sp_canvas_item_hide(*it);
+ gtk_object_destroy(*it);
+ }
+ tc->text_selection_quads.clear();
+
+ if (ec->desktop) {
+ sp_signal_disconnect_by_data(SP_DT_CANVAS(ec->desktop), tc);
+ }
+}
+
+
+static gint
+sp_text_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event)
+{
+ SPTextContext *tc = SP_TEXT_CONTEXT(ec);
+ SPDesktop *desktop = ec->desktop;
+ SPItem *item_ungrouped;
+
+ gint ret = FALSE;
+
+ sp_text_context_validate_cursor_iterators(tc);
+
+ switch (event->type) {
+ case GDK_BUTTON_PRESS:
+ if (event->button.button == 1) {
+ // find out clicked item, disregarding groups
+ item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
+ if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
+ SP_DT_SELECTION(ec->desktop)->set(item_ungrouped);
+ if (tc->text) {
+ // find out click point in document coordinates
+ NR::Point p = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
+ // set the cursor closest to that point
+ tc->text_sel_start = tc->text_sel_end = sp_te_get_position_by_coords(tc->text, p);
+ // update display
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ tc->dragging = 1;
+ }
+ ret = TRUE;
+ }
+ }
+ break;
+ case GDK_2BUTTON_PRESS:
+ if (event->button.button == 1 && tc->text) {
+ Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
+ if (layout) {
+ if (!layout->isStartOfWord(tc->text_sel_start))
+ tc->text_sel_start.prevStartOfWord();
+ if (!layout->isEndOfWord(tc->text_sel_end))
+ tc->text_sel_end.nextEndOfWord();
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ tc->dragging = 2;
+ ret = TRUE;
+ }
+ }
+ break;
+ case GDK_3BUTTON_PRESS:
+ if (event->button.button == 1 && tc->text) {
+ tc->text_sel_start.thisStartOfLine();
+ tc->text_sel_end.thisEndOfLine();
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ tc->dragging = 3;
+ ret = TRUE;
+ }
+ break;
+ case GDK_BUTTON_RELEASE:
+ if (event->button.button == 1 && tc->dragging) {
+ tc->dragging = 0;
+ ret = TRUE;
+ }
+ break;
+ case GDK_MOTION_NOTIFY:
+ if (event->motion.state & GDK_BUTTON1_MASK && tc->dragging) {
+ Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
+ if (!layout) break;
+ // find out click point in document coordinates
+ NR::Point p = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
+ // set the cursor closest to that point
+ Inkscape::Text::Layout::iterator new_end = sp_te_get_position_by_coords(tc->text, p);
+ if (tc->dragging == 2) {
+ // double-click dragging: go by word
+ if (new_end < tc->text_sel_start) {
+ if (!layout->isStartOfWord(new_end))
+ new_end.prevStartOfWord();
+ } else
+ if (!layout->isEndOfWord(new_end))
+ new_end.nextEndOfWord();
+ } else if (tc->dragging == 3) {
+ // triple-click dragging: go by line
+ if (new_end < tc->text_sel_start)
+ new_end.thisStartOfLine();
+ else
+ new_end.thisEndOfLine();
+ }
+ // update display
+ if (tc->text_sel_end != new_end) {
+ tc->text_sel_end = new_end;
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ }
+ ret = TRUE;
+ break;
+ }
+ // find out item under mouse, disregarding groups
+ item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
+ if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
+ sp_canvas_item_show(tc->indicator);
+ SP_CTRLRECT(tc->indicator)->setRectangle(sp_item_bbox_desktop(item_ungrouped));
+
+ ec->cursor_shape = cursor_text_insert_xpm;
+ ec->hot_x = 7;
+ ec->hot_y = 10;
+ sp_event_context_update_cursor(ec);
+ sp_text_context_update_text_selection(tc);
+
+ if (SP_IS_TEXT (item_ungrouped)) {
+ desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the text, <b>drag</b> to select part of the text."));
+ } else {
+ desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the flowed text, <b>drag</b> to select part of the text."));
+ }
+
+ tc->over_text = true;
+
+ ret = TRUE;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (!ret) {
+ if (((SPEventContextClass *) parent_class)->item_handler)
+ ret = ((SPEventContextClass *) parent_class)->item_handler(ec, item, event);
+ }
+
+ return ret;
+}
+
+static void
+sp_text_context_setup_text(SPTextContext *tc)
+{
+ SPEventContext *ec = SP_EVENT_CONTEXT(tc);
+
+ /* Create <text> */
+ Inkscape::XML::Node *rtext = sp_repr_new("svg:text");
+ rtext->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
+
+ /* Set style */
+ sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), rtext, "tools.text", true);
+
+ sp_repr_set_svg_double(rtext, "x", tc->pdoc[NR::X]);
+ sp_repr_set_svg_double(rtext, "y", tc->pdoc[NR::Y]);
+
+ /* Create <tspan> */
+ Inkscape::XML::Node *rtspan = sp_repr_new("svg:tspan");
+ rtspan->setAttribute("sodipodi:role", "line"); // otherwise, why bother creating the tspan?
+ rtext->addChild(rtspan, NULL);
+ Inkscape::GC::release(rtspan);
+
+ /* Create TEXT */
+ Inkscape::XML::Node *rstring = sp_repr_new_text("");
+ rtspan->addChild(rstring, NULL);
+ Inkscape::GC::release(rstring);
+ SPItem *text_item = SP_ITEM(ec->desktop->currentLayer()->appendChildRepr(rtext));
+ /* fixme: Is selection::changed really immediate? */
+ /* yes, it's immediate .. why does it matter? */
+ SP_DT_SELECTION(ec->desktop)->set(text_item);
+ Inkscape::GC::release(rtext);
+ text_item->transform = SP_ITEM(ec->desktop->currentRoot())->getRelativeTransform(ec->desktop->currentLayer());
+ text_item->updateRepr();
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+}
+
+/**
+ * Insert the character indicated by tc.uni to replace the current selection,
+ * and reset tc.uni/tc.unipos to empty string.
+ *
+ * \pre tc.uni/tc.unipos non-empty.
+ */
+static void
+insert_uni_char(SPTextContext *const tc)
+{
+ g_return_if_fail(tc->unipos
+ && tc->unipos < sizeof(tc->uni)
+ && tc->uni[tc->unipos] == '\0');
+ unsigned int uv;
+ sscanf(tc->uni, "%x", &uv);
+ tc->unipos = 0;
+ tc->uni[tc->unipos] = '\0';
+
+ if (!g_unichar_isprint((gunichar) uv)) {
+ // This may be due to bad input, so it goes to statusbar.
+ tc->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE,
+ _("Non-printable character"));
+ } else {
+ if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
+ sp_text_context_setup_text(tc);
+ tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
+ }
+
+ gchar u[10];
+ guint const len = g_unichar_to_utf8(uv, u);
+ u[len] = '\0';
+
+ tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, u);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_done(SP_DT_DOCUMENT(tc->desktop));
+ }
+}
+
+static void
+hex_to_printable_utf8_buf(char const *const hex, char *utf8)
+{
+ unsigned int uv;
+ sscanf(hex, "%x", &uv);
+ if (!g_unichar_isprint((gunichar) uv)) {
+ uv = 0xfffd;
+ }
+ guint const len = g_unichar_to_utf8(uv, utf8);
+ utf8[len] = '\0';
+}
+
+static void
+show_curr_uni_char(SPTextContext *const tc)
+{
+ g_return_if_fail(tc->unipos < sizeof(tc->uni)
+ && tc->uni[tc->unipos] == '\0');
+ if (tc->unipos) {
+ char utf8[10];
+ hex_to_printable_utf8_buf(tc->uni, utf8);
+
+ /* Status bar messages are in pango markup, so we need xml escaping. */
+ if (utf8[1] == '\0') {
+ switch(utf8[0]) {
+ case '<': strcpy(utf8, "&lt;"); break;
+ case '>': strcpy(utf8, "&gt;"); break;
+ case '&': strcpy(utf8, "&amp;"); break;
+ default: break;
+ }
+ }
+ tc->defaultMessageContext()->setF(Inkscape::NORMAL_MESSAGE,
+ _("Unicode: %s: %s"), tc->uni, utf8);
+ } else {
+ tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode: "));
+ }
+}
+
+static gint
+sp_text_context_root_handler(SPEventContext *const ec, GdkEvent *const event)
+{
+ SPTextContext *const tc = SP_TEXT_CONTEXT(ec);
+
+ SPDesktop *desktop = ec->desktop;
+
+ sp_canvas_item_hide(tc->indicator);
+
+ sp_text_context_validate_cursor_iterators(tc);
+
+ ec->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
+
+ switch (event->type) {
+ case GDK_BUTTON_PRESS:
+ if (event->button.button == 1) {
+
+ SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(ec);
+
+ if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {
+ return TRUE;
+ }
+
+ // save drag origin
+ ec->xp = (gint) event->button.x;
+ ec->yp = (gint) event->button.y;
+ ec->within_tolerance = true;
+
+ NR::Point const button_pt(event->button.x, event->button.y);
+ tc->p0 = desktop->w2d(button_pt);
+ Inkscape::Rubberband::get()->start(desktop, tc->p0);
+ sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
+ GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
+ GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
+ NULL, event->button.time);
+ tc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
+ tc->creating = 1;
+
+ /* Processed */
+ return TRUE;
+ }
+ break;
+ case GDK_MOTION_NOTIFY:
+ if (tc->over_text) {
+ tc->over_text = 0;
+ // update cursor and statusbar: we are not over a text object now
+ ec->cursor_shape = cursor_text_xpm;
+ ec->hot_x = 7;
+ ec->hot_y = 7;
+ sp_event_context_update_cursor(ec);
+ desktop->event_context->defaultMessageContext()->clear();
+ }
+
+ if (tc->creating && event->motion.state & GDK_BUTTON1_MASK) {
+ if ( ec->within_tolerance
+ && ( abs( (gint) event->motion.x - ec->xp ) < ec->tolerance )
+ && ( abs( (gint) event->motion.y - ec->yp ) < ec->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)
+ ec->within_tolerance = false;
+
+ NR::Point const motion_pt(event->motion.x, event->motion.y);
+ NR::Point const p = desktop->w2d(motion_pt);
+
+ Inkscape::Rubberband::get()->move(p);
+ gobble_motion_events(GDK_BUTTON1_MASK);
+
+ // status text
+ GString *xs = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::X]), desktop->namedview->getDefaultMetric());
+ GString *ys = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::Y]), desktop->namedview->getDefaultMetric());
+ ec->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("<b>Flowed text frame</b>: %s &#215; %s"), xs->str, ys->str);
+ g_string_free(xs, FALSE);
+ g_string_free(ys, FALSE);
+
+ }
+ break;
+ case GDK_BUTTON_RELEASE:
+ if (event->button.button == 1) {
+
+ if (tc->grabbed) {
+ sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
+ tc->grabbed = NULL;
+ }
+
+ Inkscape::Rubberband::get()->stop();
+
+ if (tc->creating && ec->within_tolerance) {
+ /* Button 1, set X & Y & new item */
+ SP_DT_SELECTION(desktop)->clear();
+ NR::Point dtp = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
+ tc->pdoc = sp_desktop_dt2root_xy_point(ec->desktop, dtp);
+
+ tc->show = TRUE;
+ tc->phase = 1;
+ tc->nascent_object = 1; // new object was just created
+
+ /* Cursor */
+ sp_canvas_item_show(tc->cursor);
+ // Cursor height is defined by the new text object's font size; it needs to be set
+ // articifically here, for the text object does not exist yet:
+ double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
+ sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));
+ ec->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line.")); // FIXME:: this is a copy of a string from _update_cursor below, do not desync
+
+ ec->within_tolerance = false;
+ } else if (tc->creating) {
+ NR::Point const button_pt(event->button.x, event->button.y);
+ NR::Point p1 = desktop->w2d(button_pt);
+ double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
+ if (fabs(p1[NR::Y] - tc->p0[NR::Y]) > cursor_height) {
+ // otherwise even one line won't fit; most probably a slip of hand (even if bigger than tolerance)
+ SPItem *ft = create_flowtext_with_internal_frame (desktop, tc->p0, p1);
+ SP_DT_SELECTION(desktop)->set(ft);
+ ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));
+ sp_document_done(SP_DT_DOCUMENT(desktop));
+ } else {
+ ec->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The frame is <b>too small</b> for the current font size. Flowed text not created."));
+ }
+ }
+ tc->creating = false;
+ return TRUE;
+ }
+ break;
+ case GDK_KEY_PRESS: {
+ guint const group0_keyval = get_group0_keyval(&event->key);
+
+ if (group0_keyval == GDK_KP_Add ||
+ group0_keyval == GDK_KP_Subtract) {
+ if (!(event->key.state & GDK_MOD2_MASK)) // mod2 is NumLock; if on, type +/- keys
+ break; // otherwise pass on keypad +/- so they can zoom
+ }
+
+ if ((tc->text) || (tc->nascent_object)) {
+ // there is an active text object in this context, or a new object was just created
+
+ if (tc->unimode || !tc->imc
+ || (MOD__CTRL && MOD__SHIFT) // input methods tend to steal this for unimode,
+ // but we have our own so make sure they don't swallow it
+ || !gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
+ //IM did not consume the key, or we're in unimode
+
+ if (!MOD__CTRL_ONLY && tc->unimode) {
+ /* TODO: ISO 14755 (section 3 Definitions) says that we should also
+ accept the first 6 characters of alphabets other than the latin
+ alphabet "if the Latin alphabet is not used". The below is also
+ reasonable (viz. hope that the user's keyboard includes latin
+ characters and force latin interpretation -- just as we do for our
+ keyboard shortcuts), but differs from the ISO 14755
+ recommendation. */
+ switch (group0_keyval) {
+ case GDK_space:
+ case GDK_KP_Space: {
+ if (tc->unipos) {
+ insert_uni_char(tc);
+ }
+ /* Stay in unimode. */
+ show_curr_uni_char(tc);
+ return TRUE;
+ }
+
+ case GDK_BackSpace: {
+ g_return_val_if_fail(tc->unipos < sizeof(tc->uni), TRUE);
+ if (tc->unipos) {
+ tc->uni[--tc->unipos] = '\0';
+ }
+ show_curr_uni_char(tc);
+ return TRUE;
+ }
+
+ case GDK_Return:
+ case GDK_KP_Enter: {
+ if (tc->unipos) {
+ insert_uni_char(tc);
+ }
+ /* Exit unimode. */
+ tc->unimode = false;
+ ec->defaultMessageContext()->clear();
+ return TRUE;
+ }
+
+ case GDK_Escape: {
+ // Cancel unimode.
+ tc->unimode = false;
+ gtk_im_context_reset(tc->imc);
+ ec->defaultMessageContext()->clear();
+ return TRUE;
+ }
+
+ case GDK_Shift_L:
+ case GDK_Shift_R:
+ break;
+
+ default: {
+ if (g_ascii_isxdigit(group0_keyval)) {
+ g_return_val_if_fail(tc->unipos < sizeof(tc->uni) - 1, TRUE);
+ tc->uni[tc->unipos++] = group0_keyval;
+ tc->uni[tc->unipos] = '\0';
+ if (tc->unipos == 8) {
+ /* This behaviour is partly to allow us to continue to
+ use a fixed-length buffer for tc->uni. Reason for
+ choosing the number 8 is that it's the length of
+ ``canonical form'' mentioned in the ISO 14755 spec.
+ An advantage over choosing 6 is that it allows using
+ backspace for typos & misremembering when entering a
+ 6-digit number. */
+ insert_uni_char(tc);
+ }
+ show_curr_uni_char(tc);
+ return TRUE;
+ } else {
+ /* The intent is to ignore but consume characters that could be
+ typos for hex digits. Gtk seems to ignore & consume all
+ non-hex-digits, and we do similar here. Though note that some
+ shortcuts (like keypad +/- for zoom) get processed before
+ reaching this code. */
+ return TRUE;
+ }
+ }
+ }
+ }
+
+ bool (Inkscape::Text::Layout::iterator::*cursor_movement_operator)() = NULL;
+
+ /* Neither unimode nor IM consumed key; process text tool shortcuts */
+ switch (group0_keyval) {
+ case GDK_space:
+ if (MOD__CTRL_ONLY) {
+ /* No-break space */
+ if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
+ sp_text_context_setup_text(tc);
+ tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
+ }
+ tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, "\302\240");
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ return TRUE;
+ }
+ break;
+ case GDK_U:
+ case GDK_u:
+ if (MOD__CTRL_ONLY) {
+ if (tc->unimode) {
+ tc->unimode = false;
+ ec->defaultMessageContext()->clear();
+ } else {
+ tc->unimode = true;
+ tc->unipos = 0;
+ ec->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode: "));
+ }
+ if (tc->imc) {
+ gtk_im_context_reset(tc->imc);
+ }
+ return TRUE;
+ }
+ break;
+ case GDK_B:
+ case GDK_b:
+ if (MOD__CTRL_ONLY && tc->text) {
+ SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ if (style->font_weight.computed == SP_CSS_FONT_WEIGHT_NORMAL
+ || style->font_weight.computed == SP_CSS_FONT_WEIGHT_100
+ || style->font_weight.computed == SP_CSS_FONT_WEIGHT_200
+ || style->font_weight.computed == SP_CSS_FONT_WEIGHT_300
+ || style->font_weight.computed == SP_CSS_FONT_WEIGHT_400)
+ sp_repr_css_set_property(css, "font-weight", "bold");
+ else
+ sp_repr_css_set_property(css, "font-weight", "normal");
+ sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
+ sp_repr_css_attr_unref(css);
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ break;
+ case GDK_I:
+ case GDK_i:
+ if (MOD__CTRL_ONLY && tc->text) {
+ SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ if (style->font_style.computed == SP_CSS_FONT_STYLE_NORMAL)
+ sp_repr_css_set_property(css, "font-style", "italic");
+ else
+ sp_repr_css_set_property(css, "font-style", "normal");
+ sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
+ sp_repr_css_attr_unref(css);
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ break;
+
+ case GDK_A:
+ case GDK_a:
+ if (MOD__CTRL_ONLY && tc->text) {
+ Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
+ if (layout) {
+ tc->text_sel_start = layout->begin();
+ tc->text_sel_end = layout->end();
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ }
+ break;
+
+ case GDK_Return:
+ case GDK_KP_Enter:
+ if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
+ sp_text_context_setup_text(tc);
+ tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
+ }
+ tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
+ tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ return TRUE;
+ case GDK_BackSpace:
+ if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys
+ if (tc->text_sel_start == tc->text_sel_end)
+ tc->text_sel_start.prevCursorPosition();
+ tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ }
+ return TRUE;
+ case GDK_Delete:
+ case GDK_KP_Delete:
+ if (tc->text) {
+ if (tc->text_sel_start == tc->text_sel_end)
+ tc->text_sel_end.nextCursorPosition();
+ tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+ }
+ return TRUE;
+ case GDK_Left:
+ case GDK_KP_Left:
+ case GDK_KP_4:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT)
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-10, 0));
+ else
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-1, 0));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:left");
+ } else {
+ cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorLeftWithControl
+ : &Inkscape::Text::Layout::iterator::cursorLeft;
+ break;
+ }
+ }
+ return TRUE;
+ case GDK_Right:
+ case GDK_KP_Right:
+ case GDK_KP_6:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT)
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(10, 0));
+ else
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(1, 0));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:right");
+ } else {
+ cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorRightWithControl
+ : &Inkscape::Text::Layout::iterator::cursorRight;
+ break;
+ }
+ }
+ return TRUE;
+ case GDK_Up:
+ case GDK_KP_Up:
+ case GDK_KP_8:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT)
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -10));
+ else
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -1));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:up");
+ } else {
+ cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorUpWithControl
+ : &Inkscape::Text::Layout::iterator::cursorUp;
+ break;
+ }
+ }
+ return TRUE;
+ case GDK_Down:
+ case GDK_KP_Down:
+ case GDK_KP_2:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT)
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 10));
+ else
+ sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 1));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:down");
+ } else {
+ cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorDownWithControl
+ : &Inkscape::Text::Layout::iterator::cursorDown;
+ break;
+ }
+ }
+ return TRUE;
+ case GDK_Home:
+ case GDK_KP_Home:
+ if (tc->text) {
+ if (MOD__CTRL)
+ cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfShape;
+ else
+ cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfLine;
+ break;
+ }
+ return TRUE;
+ case GDK_End:
+ case GDK_KP_End:
+ if (tc->text) {
+ if (MOD__CTRL)
+ cursor_movement_operator = &Inkscape::Text::Layout::iterator::nextStartOfShape;
+ else
+ cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisEndOfLine;
+ break;
+ }
+ return TRUE;
+ case GDK_Escape:
+ if (tc->creating) {
+ tc->creating = 0;
+ if (tc->grabbed) {
+ sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
+ tc->grabbed = NULL;
+ }
+ Inkscape::Rubberband::get()->stop();
+ } else {
+ SP_DT_SELECTION(ec->desktop)->clear();
+ }
+ return TRUE;
+ case GDK_bracketleft:
+ if (tc->text) {
+ if (MOD__ALT || MOD__CTRL) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT) {
+ // FIXME: alt+shift+[] does not work, don't know why
+ sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
+ } else {
+ sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
+ }
+ } else {
+ sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -90);
+ }
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "textrot:ccw");
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ }
+ break;
+ case GDK_bracketright:
+ if (tc->text) {
+ if (MOD__ALT || MOD__CTRL) {
+ if (MOD__ALT) {
+ if (MOD__SHIFT) {
+ // FIXME: alt+shift+[] does not work, don't know why
+ sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
+ } else {
+ sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
+ }
+ } else {
+ sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 90);
+ }
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "textrot:cw");
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ }
+ break;
+ case GDK_less:
+ case GDK_comma:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__CTRL) {
+ if (MOD__SHIFT)
+ sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
+ else
+ sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "linespacing:dec");
+ } else {
+ if (MOD__SHIFT)
+ sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
+ else
+ sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "letterspacing:dec");
+ }
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ }
+ break;
+ case GDK_greater:
+ case GDK_period:
+ if (tc->text) {
+ if (MOD__ALT) {
+ if (MOD__CTRL) {
+ if (MOD__SHIFT)
+ sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
+ else
+ sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "linespacing:inc");
+ } else {
+ if (MOD__SHIFT)
+ sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
+ else
+ sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
+ sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "letterspacing:inc");
+ }
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return TRUE;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (cursor_movement_operator) {
+ Inkscape::Text::Layout::iterator old_start = tc->text_sel_start;
+ Inkscape::Text::Layout::iterator old_end = tc->text_sel_end;
+ (tc->text_sel_end.*cursor_movement_operator)();
+ if (!MOD__SHIFT)
+ tc->text_sel_start = tc->text_sel_end;
+ if (old_start != tc->text_sel_start || old_end != tc->text_sel_end) {
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ }
+ return TRUE;
+ }
+
+ } else return TRUE; // return the "I took care of it" value if it was consumed by the IM
+ } else { // do nothing if there's no object to type in - the key will be sent to parent context,
+ // except up/down that are swallowed to prevent the zoom field from activation
+ if ((group0_keyval == GDK_Up ||
+ group0_keyval == GDK_Down ||
+ group0_keyval == GDK_KP_Up ||
+ group0_keyval == GDK_KP_Down )
+ && !MOD__CTRL_ONLY) {
+ return TRUE;
+ } else if (group0_keyval == GDK_Escape) { // cancel rubberband
+ if (tc->creating) {
+ tc->creating = 0;
+ if (tc->grabbed) {
+ sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
+ tc->grabbed = NULL;
+ }
+ Inkscape::Rubberband::get()->stop();
+ }
+ }
+ }
+ break;
+ }
+
+ case GDK_KEY_RELEASE:
+ if (!tc->unimode && tc->imc && gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
+ return TRUE;
+ }
+ break;
+ default:
+ break;
+ }
+
+ // if nobody consumed it so far
+ if (((SPEventContextClass *) parent_class)->root_handler) { // and there's a handler in parent context,
+ return ((SPEventContextClass *) parent_class)->root_handler(ec, event); // send event to parent
+ } else {
+ return FALSE; // return "I did nothing" value so that global shortcuts can be activated
+ }
+}
+
+/**
+ Attempts to paste system clipboard into the currently edited text, returns true on success
+ */
+bool
+sp_text_paste_inline(SPEventContext *ec)
+{
+ if (!SP_IS_TEXT_CONTEXT(ec))
+ return false;
+
+ SPTextContext *tc = SP_TEXT_CONTEXT(ec);
+
+ if ((tc->text) || (tc->nascent_object)) {
+ // there is an active text object in this context, or a new object was just created
+
+ Glib::RefPtr<Gtk::Clipboard> refClipboard = Gtk::Clipboard::get();
+ Glib::ustring const text = refClipboard->wait_for_text();
+
+ if (!text.empty()) {
+
+ if (!tc->text) { // create text if none (i.e. if nascent_object)
+ sp_text_context_setup_text(tc);
+ tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
+ }
+
+ // using indices is slow in ustrings. Whatever.
+ Glib::ustring::size_type begin = 0;
+ for ( ; ; ) {
+ Glib::ustring::size_type end = text.find('\n', begin);
+ if (end == Glib::ustring::npos) {
+ if (begin != text.length())
+ tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin).c_str());
+ break;
+ }
+ tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin, end - begin).c_str());
+ tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
+ begin = end + 1;
+ }
+ sp_document_done(SP_DT_DOCUMENT(ec->desktop));
+
+ return true;
+ }
+ } // FIXME: else create and select a new object under cursor!
+
+ return false;
+}
+
+/**
+ Gets the raw characters that comprise the currently selected text, converting line
+ breaks into lf characters.
+*/
+Glib::ustring
+sp_text_get_selected_text(SPEventContext const *ec)
+{
+ if (!SP_IS_TEXT_CONTEXT(ec))
+ return "";
+ SPTextContext const *tc = SP_TEXT_CONTEXT(ec);
+ if (tc->text == NULL)
+ return "";
+
+ return sp_te_get_string_multiline(tc->text, tc->text_sel_start, tc->text_sel_end);
+}
+
+/**
+ Deletes the currently selected characters. Returns false if there is no
+ text selection currently.
+*/
+bool sp_text_delete_selection(SPEventContext *ec)
+{
+ if (!SP_IS_TEXT_CONTEXT(ec))
+ return false;
+ SPTextContext *tc = SP_TEXT_CONTEXT(ec);
+ if (tc->text == NULL)
+ return false;
+
+ if (tc->text_sel_start == tc->text_sel_end)
+ return false;
+ tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+ return true;
+}
+
+/**
+ * \param selection Should not be NULL.
+ */
+static void
+sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc)
+{
+ g_assert(selection != NULL);
+
+ SPEventContext *ec = SP_EVENT_CONTEXT(tc);
+
+ if (ec->shape_knot_holder) { // destroy knotholder
+ sp_knot_holder_destroy(ec->shape_knot_holder);
+ ec->shape_knot_holder = NULL;
+ }
+
+ if (ec->shape_repr) { // remove old listener
+ sp_repr_remove_listener_by_data(ec->shape_repr, ec);
+ Inkscape::GC::release(ec->shape_repr);
+ ec->shape_repr = 0;
+ }
+
+ SPItem *item = selection->singleItem();
+ if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
+ ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
+ Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
+ if (shape_repr) {
+ ec->shape_repr = shape_repr;
+ Inkscape::GC::anchor(shape_repr);
+ sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
+ sp_repr_synthesize_events(shape_repr, &ec_shape_repr_events, ec);
+ }
+ }
+
+ if (tc->text && (item != tc->text)) {
+ sp_text_context_forget_text(tc);
+ }
+ tc->text = NULL;
+
+ if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) {
+ tc->text = item;
+ Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
+ if (layout)
+ tc->text_sel_start = tc->text_sel_end = layout->end();
+ } else {
+ tc->text = NULL;
+ }
+
+ // we update cursor without scrolling, because this position may not be final;
+ // item_handler moves cusros to the point of click immediately
+ sp_text_context_update_cursor(tc, false);
+ sp_text_context_update_text_selection(tc);
+}
+
+static void
+sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc)
+{
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+}
+
+static bool
+sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc)
+{
+ if (tc->text == NULL)
+ return false;
+ if (tc->text_sel_start == tc->text_sel_end)
+ return false; // will get picked up by the parent and applied to the whole text object
+
+ sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
+ sp_document_done(SP_DT_DOCUMENT(tc->desktop));
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+
+ return true;
+}
+
+static int
+sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc)
+{
+ if (tc->text == NULL)
+ return QUERY_STYLE_NOTHING;
+ const Inkscape::Text::Layout *layout = te_get_layout(tc->text);
+ if (layout == NULL)
+ return QUERY_STYLE_NOTHING;
+ sp_text_context_validate_cursor_iterators(tc);
+
+ GSList *styles_list = NULL;
+
+ Inkscape::Text::Layout::iterator begin_it, end_it;
+ if (tc->text_sel_start < tc->text_sel_end) {
+ begin_it = tc->text_sel_start;
+ end_it = tc->text_sel_end;
+ } else {
+ begin_it = tc->text_sel_end;
+ end_it = tc->text_sel_start;
+ }
+ if (begin_it == end_it)
+ if (!begin_it.prevCharacter())
+ end_it.nextCharacter();
+ for (Inkscape::Text::Layout::iterator it = begin_it ; it < end_it ; it.nextStartOfSpan()) {
+ SPObject const *pos_obj = NULL;
+ layout->getSourceOfCharacter(it, (void**)&pos_obj);
+ if (pos_obj == NULL) continue;
+ while (SP_OBJECT_STYLE(pos_obj) == NULL && SP_OBJECT_PARENT(pos_obj))
+ pos_obj = SP_OBJECT_PARENT(pos_obj); // SPStrings don't have style
+ styles_list = g_slist_prepend(styles_list, (gpointer)pos_obj);
+ }
+
+ int result = sp_desktop_query_style_from_list (styles_list, style, property);
+
+ g_slist_free(styles_list);
+ return result;
+}
+
+static void
+sp_text_context_validate_cursor_iterators(SPTextContext *tc)
+{
+ if (tc->text == NULL)
+ return;
+ Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
+ if (layout) { // undo can change the text length without us knowing it
+ layout->validateIterator(&tc->text_sel_start);
+ layout->validateIterator(&tc->text_sel_end);
+ }
+}
+
+static void
+sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see)
+{
+ GdkRectangle im_cursor = { 0, 0, 1, 1 };
+
+ if (tc->text) {
+ NR::Point p0, p1;
+ sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);
+ NR::Point const d0 = p0 * sp_item_i2d_affine(SP_ITEM(tc->text));
+ NR::Point const d1 = p1 * sp_item_i2d_affine(SP_ITEM(tc->text));
+
+ // scroll to show cursor
+ if (scroll_to_see) {
+ NR::Point const dm = (d0 + d1) / 2;
+ // unlike mouse moves, here we must scroll all the way at first shot, so we override the autoscrollspeed
+ SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(&dm, 1.0);
+ }
+
+ sp_canvas_item_show(tc->cursor);
+ sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), d0, d1);
+
+ /* fixme: ... need another transformation to get canvas widget coordinate space? */
+ im_cursor.x = (int) floor(d0[NR::X]);
+ im_cursor.y = (int) floor(d0[NR::Y]);
+ im_cursor.width = (int) floor(d1[NR::X]) - im_cursor.x;
+ im_cursor.height = (int) floor(d1[NR::Y]) - im_cursor.y;
+
+ tc->show = TRUE;
+ tc->phase = 1;
+
+ if (SP_IS_FLOWTEXT(tc->text)) {
+ SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only
+ if (frame) {
+ sp_canvas_item_show(tc->frame);
+ SP_CTRLRECT(tc->frame)->setRectangle(sp_item_bbox_desktop(frame));
+ }
+ SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type flowed text; <b>Enter</b> to start new paragraph."));
+ } else {
+ SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line."));
+ }
+
+ } else {
+ sp_canvas_item_hide(tc->cursor);
+ sp_canvas_item_hide(tc->frame);
+ tc->show = FALSE;
+ if (!tc->nascent_object) {
+ SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to select or create text, <b>drag</b> to create flowed text; then type.")); // FIXME: this is a copy of string from tools-switch, do not desync
+ }
+ }
+
+ if (tc->imc) {
+ gtk_im_context_set_cursor_location(tc->imc, &im_cursor);
+ }
+ SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);
+}
+
+static void sp_text_context_update_text_selection(SPTextContext *tc)
+{
+ for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ; it != tc->text_selection_quads.end() ; it++) {
+ sp_canvas_item_hide(*it);
+ gtk_object_destroy(*it);
+ }
+ tc->text_selection_quads.clear();
+
+ std::vector<NR::Point> quads;
+ if (tc->text != NULL)
+ quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, sp_item_i2d_affine(tc->text));
+ for (unsigned i = 0 ; i < quads.size() ; i += 4) {
+ SPCanvasItem *quad_canvasitem;
+ quad_canvasitem = sp_canvas_item_new(SP_DT_CONTROLS(tc->desktop), SP_TYPE_CTRLQUADR, NULL);
+ sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x000000ff);
+ sp_ctrlquadr_set_coords(SP_CTRLQUADR(quad_canvasitem), quads[i], quads[i+1], quads[i+2], quads[i+3]);
+ sp_canvas_item_show(quad_canvasitem);
+ tc->text_selection_quads.push_back(quad_canvasitem);
+ }
+}
+
+static gint
+sp_text_context_timeout(SPTextContext *tc)
+{
+ if (tc->show) {
+ if (tc->phase) {
+ tc->phase = 0;
+ sp_canvas_item_hide(tc->cursor);
+ } else {
+ tc->phase = 1;
+ sp_canvas_item_show(tc->cursor);
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+sp_text_context_forget_text(SPTextContext *tc)
+{
+ if (! tc->text) return;
+ SPItem *ti = tc->text;
+ /* We have to set it to zero,
+ * or selection changed signal messes everything up */
+ tc->text = NULL;
+ if ((SP_IS_TEXT(ti) || SP_IS_FLOWTEXT(ti)) && sp_te_input_is_empty(ti)) {
+ Inkscape::XML::Node *text_repr=SP_OBJECT_REPR(ti);
+ // the repr may already have been unparented
+ // if we were called e.g. as the result of
+ // an undo or the element being removed from
+ // the XML editor
+ if ( text_repr && sp_repr_parent(text_repr) ) {
+ sp_repr_unparent(text_repr);
+ }
+ }
+}
+
+gint
+sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
+{
+ gtk_im_context_focus_in(tc->imc);
+ return FALSE;
+}
+
+gint
+sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
+{
+ gtk_im_context_focus_out(tc->imc);
+ return FALSE;
+}
+
+static void
+sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc)
+{
+ if (!tc->text) {
+ sp_text_context_setup_text(tc);
+ tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
+ }
+
+ tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, string);
+ sp_text_context_update_cursor(tc);
+ sp_text_context_update_text_selection(tc);
+
+ sp_document_done(SP_OBJECT_DOCUMENT(tc->text));
+}
+
+
+/*
+ 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 :
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-19 01:52:33 +0000