#define __SP_TEXT_CONTEXT_C__

#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 "verbs.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;

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) {

delete 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_desktop_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_desktop_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_desktop_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_desktop_canvas(desktop));

/* im preedit handling is very broken in inkscape for

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_desktop_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);

}

}

tc->sel_changed_connection = sp_desktop_selection(desktop)->connectChanged(

sigc::bind(sigc::ptr_fun(&sp_text_context_selection_changed), tc)

);

tc->sel_modified_connection = sp_desktop_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_desktop_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);

if (ec->desktop) {

sp_signal_disconnect_by_data(sp_desktop_canvas(ec->desktop), tc);

}

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();

}

static gint

sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)

{

SPTextContext *tc = SP_TEXT_CONTEXT(event_context);

SPDesktop *desktop = event_context->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 && !event_context->space_panning) {

// 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_desktop_selection(desktop)->set(item_ungrouped);

if (tc->text) {

// find out click point in document coordinates

NR::Point p = 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 && !event_context->space_panning) {

tc->dragging = 0;

ret = TRUE;

}

break;

case GDK_MOTION_NOTIFY:

if (event->motion.state & GDK_BUTTON1_MASK && tc->dragging && !event_context->space_panning) {

Inkscape::Text::Layout const *layout = te_get_layout(tc->text);

if (!layout) break;

// find out click point in document coordinates

NR::Point p = 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);

}

gobble_motion_events(GDK_BUTTON1_MASK);

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);

NR::Maybe<NR::Rect> ibbox = sp_item_bbox_desktop(item_ungrouped);

if (ibbox) {

SP_CTRLRECT(tc->indicator)->setRectangle(*ibbox);

}

event_context->cursor_shape = cursor_text_insert_xpm;

event_context->hot_x = 7;

event_context->hot_y = 10;

sp_event_context_update_cursor(event_context);

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(event_context, item, event);

}

return ret;

}

static void

sp_text_context_setup_text(SPTextContext *tc)

{

SPEventContext *ec = SP_EVENT_CONTEXT(tc);

/* Create <text> */

Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DESKTOP(ec)->doc());

Inkscape::XML::Node *rtext = xml_doc->createElement("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 = xml_doc->createElement("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 = xml_doc->createTextNode("");

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_desktop_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_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,

_("Create text"));

}

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(static_cast<gunichar>(uv))

&& !(g_unichar_validate(static_cast<gunichar>(uv)) && (g_unichar_type(static_cast<gunichar>(uv)) == G_UNICODE_PRIVATE_USE) ) ) {

// 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_desktop_document(tc->desktop), SP_VERB_DIALOG_TRANSFORM,

_("Insert Unicode character"));

}

}

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 (<b>Enter</b> to finish): %s: %s"), tc->uni, utf8);

} else {

tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));

}

}

static gint

sp_text_context_root_handler(SPEventContext *const event_context, GdkEvent *const event)

{

SPTextContext *const tc = SP_TEXT_CONTEXT(event_context);

SPDesktop *desktop = event_context->desktop;

sp_canvas_item_hide(tc->indicator);

sp_text_context_validate_cursor_iterators(tc);

event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);

switch (event->type) {

case GDK_BUTTON_PRESS:

if (event->button.button == 1 && !event_context->space_panning) {

if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {

return TRUE;

}

// save drag origin

event_context->xp = (gint) event->button.x;

event_context->yp = (gint) event->button.y;

event_context->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

event_context->cursor_shape = cursor_text_xpm;

event_context->hot_x = 7;

event_context->hot_y = 7;

sp_event_context_update_cursor(event_context);

desktop->event_context->defaultMessageContext()->clear();

}

if (tc->creating && event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {

if ( event_context->within_tolerance

&& ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )

&& ( abs( (gint) event->motion.y - event_context->yp ) < event_context->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)

event_context->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());

event_context->_message_context->setF(Inkscape::IMMEDIATE_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 && !event_context->space_panning) {

if (tc->grabbed) {

sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);

tc->grabbed = NULL;

}

Inkscape::Rubberband::get()->stop();

if (tc->creating && event_context->within_tolerance) {

/* Button 1, set X & Y & new item */

sp_desktop_selection(desktop)->clear();

NR::Point dtp = desktop->w2d(NR::Point(event->button.x, event->button.y));

tc->pdoc = sp_desktop_dt2root_xy_point(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(desktop);

sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));

event_context->_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

event_context->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(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);

/* Set style */

sp_desktop_apply_style_tool(desktop, SP_OBJECT_REPR(ft), "tools.text", true);

sp_desktop_selection(desktop)->set(ft);

desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));

sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Create flowed text"));

} else {

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

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;

event_context->defaultMessageContext()->clear();

return TRUE;

}

case GDK_Escape: {

// Cancel unimode.

tc->unimode = false;

gtk_im_context_reset(tc->imc);

event_context->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

insert_uni_char(tc);

}

show_curr_uni_char(tc);

return TRUE;

} else {

/* The intent is to ignore but consume characters that could be

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_x:

case GDK_X:

if (MOD__ALT_ONLY) {

desktop->setToolboxFocusTo ("altx-text");

return TRUE;

}

break;

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);

desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));

sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Insert no-break space"));

return TRUE;

}

break;

case GDK_U:

case GDK_u:

if (MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT)) {

if (tc->unimode) {

tc->unimode = false;

event_context->defaultMessageContext()->clear();

} else {

tc->unimode = true;

tc->unipos = 0;

event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));

}

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_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Make bold"));

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_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Make italic"));

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>

}

iterator_pair enter_pair;

bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, enter_pair);

(void)success; // TODO cleanup

tc->text_sel_start = tc->text_sel_end = enter_pair.first;

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_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("New line"));

return TRUE;

}

case GDK_BackSpace:

if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys

bool noSelection = false;

if (tc->text_sel_start == tc->text_sel_end) {

tc->text_sel_start.prevCursorPosition();

noSelection = true;

}

iterator_pair bspace_pair;

bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, bspace_pair);

if (noSelection) {

if (success) {

tc->text_sel_start = tc->text_sel_end = bspace_pair.first;

} else { // nothing deleted

tc->text_sel_start = tc->text_sel_end = bspace_pair.second;

}

} else {

if (success) {

tc->text_sel_start = tc->text_sel_end = bspace_pair.first;

} else { // nothing deleted

tc->text_sel_start = bspace_pair.first;

tc->text_sel_end = bspace_pair.second;

}

}

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Backspace"));

}

return TRUE;

case GDK_Delete:

case GDK_KP_Delete:

if (tc->text) {

bool noSelection = false;

if (tc->text_sel_start == tc->text_sel_end) {

tc->text_sel_end.nextCursorPosition();

noSelection = true;

}

iterator_pair del_pair;

bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, del_pair);

if (noSelection) {

tc->text_sel_start = tc->text_sel_end = del_pair.first;

} else {

if (success) {

tc->text_sel_start = tc->text_sel_end = del_pair.first;

} else { // nothing deleted

tc->text_sel_start = del_pair.first;

tc->text_sel_end = del_pair.second;

}

}

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Delete"));

}

return TRUE;

case GDK_Left:

case GDK_KP_Left:

case GDK_KP_4:

if (tc->text) {

if (MOD__ALT) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__SHIFT)

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(mul*-10, 0));

else

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(mul*-1, 0));

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_maybe_done(sp_desktop_document(desktop), "kern:left", SP_VERB_CONTEXT_TEXT,

_("Kern to the 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) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__SHIFT)

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(mul*10, 0));

else

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(mul*1, 0));

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_maybe_done(sp_desktop_document(desktop), "kern:right", SP_VERB_CONTEXT_TEXT,

_("Kern to the 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) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__SHIFT)

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, mul*-10));

else

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, mul*-1));

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_maybe_done(sp_desktop_document(desktop), "kern:up", SP_VERB_CONTEXT_TEXT,

_("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) {

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__SHIFT)

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, mul*10));

else

sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, mul*1));

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

sp_document_maybe_done(sp_desktop_document(desktop), "kern:down", SP_VERB_CONTEXT_TEXT,

_("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_desktop_selection(desktop)->clear();

}

tc->nascent_object = FALSE;

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, desktop, -10);

} else {

sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);

}

} else {

sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -90);

}

sp_document_maybe_done(sp_desktop_document(desktop), "textrot:ccw", SP_VERB_CONTEXT_TEXT,

_("Rotate counterclockwise"));

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, desktop, 10);

} else {

sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);

}

} else {

sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 90);

}

sp_document_maybe_done(sp_desktop_document(desktop), "textrot:cw", SP_VERB_CONTEXT_TEXT,

_("Rotate clockwise"));

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, desktop, -10);

else

sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);

sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:dec", SP_VERB_CONTEXT_TEXT,

_("Contract line spacing"));

} else {

if (MOD__SHIFT)

sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);

else

sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);

sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:dec", SP_VERB_CONTEXT_TEXT,

_("Contract letter spacing"));

}

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, desktop, 10);

else

sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);

sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:inc", SP_VERB_CONTEXT_TEXT,

_("Expand line spacing"));

} else {

if (MOD__SHIFT)

sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);

else

sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);

sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:inc", SP_VERB_CONTEXT_TEXT,

_("Expand letter spacing"));

}

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(event_context, event); // send event to parent

} else {

return FALSE; // return "I did nothing" value so that global shortcuts can be activated

}

}

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_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,

_("Paste text"));

return true;

}

} // FIXME: else create and select a new object under cursor!

return false;

}

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);

}

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;

iterator_pair pair;

bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, pair);

if (success) {

tc->text_sel_start = tc->text_sel_end = pair.first;

} else { // nothing deleted

tc->text_sel_start = pair.first;

tc->text_sel_end = pair.second;

}

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

return true;

}

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

delete 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);

}

}

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_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,

_("Set text style"));

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 = 0;

void *rawptr = 0;

layout->getSourceOfCharacter(it, &rawptr);

if (!rawptr || !SP_IS_OBJECT(rawptr))

continue;

pos_obj = SP_OBJECT(rawptr);

while (SP_IS_STRING(pos_obj) && 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 };

// due to interruptible display, tc may already be destroyed during a display update before

// the cursor update (can't do both atomically, alas)

if (!tc->desktop) return;

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 * from_2geom(sp_item_i2d_affine(SP_ITEM(tc->text)));

NR::Point const d1 = p1 * from_2geom(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);

NR::Maybe<NR::Rect> frame_bbox = sp_item_bbox_desktop(frame);

if (frame_bbox) {

SP_CTRLRECT(tc->frame)->setRectangle(*frame_bbox);

}

}

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)

{

// due to interruptible display, tc may already be destroyed during a display update before

// the selection update (can't do both atomically, alas)

if (!tc->desktop) return;

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, from_2geom(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_desktop_controls(tc->desktop), SP_TYPE_CTRLQUADR, NULL);

// FIXME: make the color settable in prefs

// for now, use semitrasparent blue, as cairo cannot do inversion :(

sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x00777777);

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;

(void)ti;

/* We have to set it to zero,

tc->text = NULL;

}

sptc_focus_in(GtkWidget */*widget*/, GdkEventFocus */*event*/, SPTextContext *tc)

{

gtk_im_context_focus_in(tc->imc);

return FALSE;

}

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), SP_VERB_CONTEXT_TEXT,

_("Type text"));

}