#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <gtkmm/clipboard.h>

#include <display/sp-ctrlline.h>

#include <display/sodipodi-ctrlrect.h>

#include <display/sp-ctrlquadr.h>

#include <gdk/gdkkeysyms.h>

#include <glibmm/i18n.h>

#include <sstream>

#include "context-fns.h"

#include "desktop-handles.h"

#include "desktop-style.h"

#include "desktop.h"

#include "document.h"

#include "document-undo.h"

#include "macros.h"

#include "message-context.h"

#include "message-stack.h"

#include "pixmaps/cursor-text-insert.xpm"

#include "pixmaps/cursor-text.xpm"

#include "preferences.h"

#include "rubberband.h"

#include "selection-chemistry.h"

#include "selection.h"

#include "shape-editor.h"

#include "sp-flowtext.h"

#include "sp-namedview.h"

#include "sp-text.h"

#include "style.h"

#include "ui/tools/text-tool.h"

#include "text-editing.h"

#include "ui/control-manager.h"

#include "verbs.h"

#include "xml/node-event-vector.h"

#include "xml/repr.h"

#include <gtk/gtk.h>

#include "tool-factory.h"

using Inkscape::ControlManager;

using Inkscape::DocumentUndo;

namespace Inkscape {

namespace UI {

namespace Tools {

static void sp_text_context_selection_changed(Inkscape::Selection *selection, TextTool *tc);

static void sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, TextTool *tc);

static bool sp_text_context_style_set(SPCSSAttr const *css, TextTool *tc);

static int sp_text_context_style_query(SPStyle *style, int property, TextTool *tc);

static void sp_text_context_validate_cursor_iterators(TextTool *tc);

static void sp_text_context_update_cursor(TextTool *tc, bool scroll_to_see = true);

static void sp_text_context_update_text_selection(TextTool *tc);

static gint sp_text_context_timeout(TextTool *tc);

static void sp_text_context_forget_text(TextTool *tc);

static gint sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, TextTool *tc);

static gint sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, TextTool *tc);

static void sptc_commit(GtkIMContext *imc, gchar *string, TextTool *tc);

namespace {

ToolBase* createTextContext() {

return new TextTool();

}

bool textContextRegistered = ToolFactory::instance().registerObject("/tools/text", createTextContext);

}

const std::string& TextTool::getPrefsPath() {

return TextTool::prefsPath;

}

const std::string TextTool::prefsPath = "/tools/text";

TextTool::TextTool() : ToolBase() {

this->preedit_string = 0;

this->unipos = 0;

this->cursor_shape = cursor_text_xpm;

this->hot_x = 7;

this->hot_y = 7;

this->xp = 0;

this->yp = 0;

this->tolerance = 0;

this->within_tolerance = false;

this->imc = NULL;

this->text = NULL;

this->pdoc = Geom::Point(0, 0);

this->unimode = false;

this->cursor = NULL;

this->indicator = NULL;

this->frame = NULL;

this->grabbed = NULL;

this->timeout = 0;

this->show = FALSE;

this->phase = 0;

this->nascent_object = 0;

this->over_text = 0;

this->dragging = 0;

this->creating = 0;

}

TextTool::~TextTool() {

delete this->shape_editor;

this->shape_editor = NULL;

if (this->grabbed) {

sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);

this->grabbed = NULL;

}

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

}

void TextTool::setup() {

GtkSettings* settings = gtk_settings_get_default();

gint timeout = 0;

g_object_get( settings, "gtk-cursor-blink-time", &timeout, NULL );

if (timeout < 0) {

timeout = 200;

} else {

timeout /= 2;

}

this->cursor = ControlManager::getManager().createControlLine(sp_desktop_controls(desktop), Geom::Point(100, 0), Geom::Point(100, 100));

this->cursor->setRgba32(0x000000ff);

sp_canvas_item_hide(this->cursor);

this->indicator = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRLRECT, NULL);

SP_CTRLRECT(this->indicator)->setRectangle(Geom::Rect(Geom::Point(0, 0), Geom::Point(100, 100)));

SP_CTRLRECT(this->indicator)->setColor(0x0000ff7f, false, 0);

SP_CTRLRECT(this->indicator)->setShadow(1, 0xffffff7f);

sp_canvas_item_hide(this->indicator);

this->frame = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRLRECT, NULL);

SP_CTRLRECT(this->frame)->setRectangle(Geom::Rect(Geom::Point(0, 0), Geom::Point(100, 100)));

SP_CTRLRECT(this->frame)->setColor(0x0000ff7f, false, 0);

sp_canvas_item_hide(this->frame);

this->timeout = g_timeout_add(timeout, (GSourceFunc) sp_text_context_timeout, this);

this->imc = gtk_im_multicontext_new();

if (this->imc) {

GtkWidget *canvas = GTK_WIDGET(sp_desktop_canvas(desktop));

/* im preedit handling is very broken in inkscape for

gtk_im_context_set_use_preedit(this->imc, FALSE);

gtk_im_context_set_client_window(this->imc,

gtk_widget_get_window (canvas));

g_signal_connect(G_OBJECT(canvas), "focus_in_event", G_CALLBACK(sptc_focus_in), this);

g_signal_connect(G_OBJECT(canvas), "focus_out_event", G_CALLBACK(sptc_focus_out), this);

g_signal_connect(G_OBJECT(this->imc), "commit", G_CALLBACK(sptc_commit), this);

if (gtk_widget_has_focus(canvas)) {

sptc_focus_in(canvas, NULL, this);

}

}

ToolBase::setup();

this->shape_editor = new ShapeEditor(this->desktop);

SPItem *item = sp_desktop_selection(this->desktop)->singleItem();

if (item && SP_IS_FLOWTEXT(item) && SP_FLOWTEXT(item)->has_internal_frame()) {

this->shape_editor->set_item(item, SH_KNOTHOLDER);

}

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

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

);

this->sel_modified_connection = sp_desktop_selection(desktop)->connectModified(

sigc::bind(sigc::ptr_fun(&sp_text_context_selection_modified), this)

);

this->style_set_connection = desktop->connectSetStyle(

sigc::bind(sigc::ptr_fun(&sp_text_context_style_set), this)

);

this->style_query_connection = desktop->connectQueryStyle(

sigc::bind(sigc::ptr_fun(&sp_text_context_style_query), this)

);

sp_text_context_selection_changed(sp_desktop_selection(desktop), this);

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

if (prefs->getBool("/tools/text/selcue")) {

this->enableSelectionCue();

}

if (prefs->getBool("/tools/text/gradientdrag")) {

this->enableGrDrag();

}

}

void TextTool::finish() {

if (this->desktop) {

sp_signal_disconnect_by_data(sp_desktop_canvas(this->desktop), this);

}

this->enableGrDrag(false);

this->style_set_connection.disconnect();

this->style_query_connection.disconnect();

this->sel_changed_connection.disconnect();

this->sel_modified_connection.disconnect();

sp_text_context_forget_text(SP_TEXT_CONTEXT(this));

if (this->imc) {

g_object_unref(G_OBJECT(this->imc));

this->imc = NULL;

}

if (this->timeout) {

g_source_remove(this->timeout);

this->timeout = 0;

}

if (this->cursor) {

sp_canvas_item_destroy(this->cursor);

this->cursor = NULL;

}

if (this->indicator) {

sp_canvas_item_destroy(this->indicator);

this->indicator = NULL;

}

if (this->frame) {

sp_canvas_item_destroy(this->frame);

this->frame = NULL;

}

for (std::vector<SPCanvasItem*>::iterator it = this->text_selection_quads.begin() ;

it != this->text_selection_quads.end() ; ++it) {

sp_canvas_item_hide(*it);

sp_canvas_item_destroy(*it);

}

this->text_selection_quads.clear();

}

bool TextTool::item_handler(SPItem* item, GdkEvent* event) {

SPItem *item_ungrouped;

gint ret = FALSE;

sp_text_context_validate_cursor_iterators(this);

Inkscape::Text::Layout::iterator old_start = this->text_sel_start;

switch (event->type) {

case GDK_BUTTON_PRESS:

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

// find out clicked item, disregarding groups

item_ungrouped = desktop->getItemAtPoint(Geom::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 (this->text) {

// find out click point in document coordinates

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

// set the cursor closest to that point

if (event->button.state & GDK_SHIFT_MASK) {

this->text_sel_start = old_start;

this->text_sel_end = sp_te_get_position_by_coords(this->text, p);

} else {

this->text_sel_start = this->text_sel_end = sp_te_get_position_by_coords(this->text, p);

}

// update display

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

this->dragging = 1;

}

ret = TRUE;

}

}

break;

case GDK_2BUTTON_PRESS:

if (event->button.button == 1 && this->text) {

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

if (layout) {

if (!layout->isStartOfWord(this->text_sel_start))

this->text_sel_start.prevStartOfWord();

if (!layout->isEndOfWord(this->text_sel_end))

this->text_sel_end.nextEndOfWord();

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

this->dragging = 2;

ret = TRUE;

}

}

break;

case GDK_3BUTTON_PRESS:

if (event->button.button == 1 && this->text) {

this->text_sel_start.thisStartOfLine();

this->text_sel_end.thisEndOfLine();

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

this->dragging = 3;

ret = TRUE;

}

break;

case GDK_BUTTON_RELEASE:

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

this->dragging = 0;

sp_event_context_discard_delayed_snap_event(this);

ret = TRUE;

}

break;

case GDK_MOTION_NOTIFY:

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

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

if (!layout) break;

// find out click point in document coordinates

Geom::Point p = desktop->w2d(Geom::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(this->text, p);

if (this->dragging == 2) {

// double-click dragging: go by word

if (new_end < this->text_sel_start) {

if (!layout->isStartOfWord(new_end))

new_end.prevStartOfWord();

} else

if (!layout->isEndOfWord(new_end))

new_end.nextEndOfWord();

} else if (this->dragging == 3) {

// triple-click dragging: go by line

if (new_end < this->text_sel_start)

new_end.thisStartOfLine();

else

new_end.thisEndOfLine();

}

// update display

if (this->text_sel_end != new_end) {

this->text_sel_end = new_end;

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

}

gobble_motion_events(GDK_BUTTON1_MASK);

ret = TRUE;

break;

}

// find out item under mouse, disregarding groups

item_ungrouped = desktop->getItemAtPoint(Geom::Point(event->button.x, event->button.y), TRUE);

if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {

Inkscape::Text::Layout const *layout = te_get_layout(item_ungrouped);

if (layout->inputTruncated()) {

SP_CTRLRECT(this->indicator)->setColor(0xff0000ff, false, 0);

} else {

SP_CTRLRECT(this->indicator)->setColor(0x0000ff7f, false, 0);

}

Geom::OptRect ibbox = item_ungrouped->desktopVisualBounds();

if (ibbox) {

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

}

sp_canvas_item_show(this->indicator);

this->cursor_shape = cursor_text_insert_xpm;

this->hot_x = 7;

this->hot_y = 10;

this->sp_event_context_update_cursor();

sp_text_context_update_text_selection(this);

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."));

}

this->over_text = true;

ret = TRUE;

}

break;

default:

break;

}

if (!ret) {

ret = ToolBase::item_handler(item, event);

}

return ret;

}

static void sp_text_context_setup_text(TextTool *tc)

{

ToolBase *ec = SP_EVENT_CONTEXT(tc);

/* Create <text> */

Inkscape::XML::Document *xml_doc = ec->desktop->doc()->getReprDoc();

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(ec->desktop, rtext, "/tools/text", true);

sp_repr_set_svg_double(rtext, "x", tc->pdoc[Geom::X]);

sp_repr_set_svg_double(rtext, "y", tc->pdoc[Geom::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->currentLayer())->i2doc_affine().inverse();

text_item->updateRepr();

text_item->doWriteTransform(text_item->getRepr(), text_item->transform, NULL, true);

DocumentUndo::done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,

_("Create text"));

}

static void insert_uni_char(TextTool *const tc)

{

g_return_if_fail(tc->unipos

&& tc->unipos < sizeof(tc->uni)

&& tc->uni[tc->unipos] == '\0');

unsigned int uv;

std::stringstream ss;

ss << std::hex << tc->uni;

ss >> 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);

DocumentUndo::done(sp_desktop_document(tc->desktop), SP_VERB_DIALOG_TRANSFORM,

_("Insert Unicode character"));

}

}

static void hex_to_printable_utf8_buf(char const *const ehex, char *utf8)

{

unsigned int uv;

std::stringstream ss;

ss << std::hex << ehex;

ss >> 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(TextTool *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): "));

}

}

bool TextTool::root_handler(GdkEvent* event) {

sp_canvas_item_hide(this->indicator);

sp_text_context_validate_cursor_iterators(this);

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

this->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

switch (event->type) {

case GDK_BUTTON_PRESS:

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

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

return TRUE;

}

// save drag origin

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

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

this->within_tolerance = true;

Geom::Point const button_pt(event->button.x, event->button.y);

Geom::Point button_dt(desktop->w2d(button_pt));

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);

m.unSetup();

this->p0 = button_dt;

Inkscape::Rubberband::get(desktop)->start(desktop, this->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);

this->grabbed = SP_CANVAS_ITEM(desktop->acetate);

this->creating = 1;

/* Processed */

return TRUE;

}

break;

case GDK_MOTION_NOTIFY:

if (this->over_text) {

this->over_text = 0;

// update cursor and statusbar: we are not over a text object now

this->cursor_shape = cursor_text_xpm;

this->hot_x = 7;

this->hot_y = 7;

this->sp_event_context_update_cursor();

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

}

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

if ( this->within_tolerance

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

&& ( abs( (gint) event->motion.y - this->yp ) < this->tolerance ) ) {

break; // do not drag if we're within tolerance from origin

}

// Once the user has moved farther than tolerance from the original location

// (indicating they intend to draw, not click), then always process the

// motion notify coordinates as given (no snapping back to origin)

this->within_tolerance = false;

Geom::Point const motion_pt(event->motion.x, event->motion.y);

Geom::Point p = desktop->w2d(motion_pt);

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

m.freeSnapReturnByRef(p, Inkscape::SNAPSOURCE_NODE_HANDLE);

m.unSetup();

Inkscape::Rubberband::get(desktop)->move(p);

gobble_motion_events(GDK_BUTTON1_MASK);

// status text

Inkscape::Util::Quantity x_q = Inkscape::Util::Quantity(fabs((p - this->p0)[Geom::X]), "px");

Inkscape::Util::Quantity y_q = Inkscape::Util::Quantity(fabs((p - this->p0)[Geom::Y]), "px");

GString *xs = g_string_new(x_q.string(desktop->namedview->doc_units).c_str());

GString *ys = g_string_new(y_q.string(desktop->namedview->doc_units).c_str());

this->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);

} else if (!sp_event_context_knot_mouseover(this)) {

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

Geom::Point const motion_w(event->motion.x, event->motion.y);

Geom::Point motion_dt(desktop->w2d(motion_w));

m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_OTHER_HANDLE));

m.unSetup();

}

break;

case GDK_BUTTON_RELEASE:

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

sp_event_context_discard_delayed_snap_event(this);

Geom::Point p1 = desktop->w2d(Geom::Point(event->button.x, event->button.y));

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

m.freeSnapReturnByRef(p1, Inkscape::SNAPSOURCE_NODE_HANDLE);

m.unSetup();

if (this->grabbed) {

sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);

this->grabbed = NULL;

}

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

if (this->creating && this->within_tolerance) {

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

sp_desktop_selection(desktop)->clear();

this->pdoc = desktop->dt2doc(p1);

this->show = TRUE;

this->phase = 1;

this->nascent_object = 1; // new object was just created

/* Cursor */

sp_canvas_item_show(this->cursor);

// Cursor height is defined by the new text object's font size; it needs to be set

// artificially here, for the text object does not exist yet:

double cursor_height = sp_desktop_get_font_size_tool(desktop);

this->cursor->setCoords(p1, p1 + Geom::Point(0, cursor_height));

if (this->imc) {

GdkRectangle im_cursor;

Geom::Point const top_left = SP_EVENT_CONTEXT(this)->desktop->get_display_area().corner(3);

Geom::Point const cursor_size(0, cursor_height);

Geom::Point const im_position = SP_EVENT_CONTEXT(this)->desktop->d2w(p1 + cursor_size - top_left);

im_cursor.x = (int) floor(im_position[Geom::X]);

im_cursor.y = (int) floor(im_position[Geom::Y]);

im_cursor.width = 0;

im_cursor.height = (int) -floor(SP_EVENT_CONTEXT(this)->desktop->d2w(cursor_size)[Geom::Y]);

gtk_im_context_set_cursor_location(this->imc, &im_cursor);

}

this->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

this->within_tolerance = false;

} else if (this->creating) {

double cursor_height = sp_desktop_get_font_size_tool(desktop);

if (fabs(p1[Geom::Y] - this->p0[Geom::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, this->p0, p1);

/* Set style */

sp_desktop_apply_style_tool(desktop, ft->getRepr(), "/tools/text", true);

sp_desktop_selection(desktop)->set(ft);

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

DocumentUndo::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."));

}

}

this->creating = false;

return TRUE;

}

break;

case GDK_KEY_PRESS: {

guint const group0_keyval = get_group0_keyval(&event->key);

if (group0_keyval == GDK_KEY_KP_Add ||

group0_keyval == GDK_KEY_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 ((this->text) || (this->nascent_object)) {

// there is an active text object in this context, or a new object was just created

if (this->unimode || !this->imc

|| (MOD__CTRL(event) && MOD__SHIFT(event)) // 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(this->imc, (GdkEventKey*) event)) {

//IM did not consume the key, or we're in unimode

if (!MOD__CTRL_ONLY(event) && this->unimode) {

/* TODO: ISO 14755 (section 3 Definitions) says that we should also

switch (group0_keyval) {

case GDK_KEY_space:

case GDK_KEY_KP_Space: {

if (this->unipos) {

insert_uni_char(this);

}

/* Stay in unimode. */

show_curr_uni_char(this);

return TRUE;

}

case GDK_KEY_BackSpace: {

g_return_val_if_fail(this->unipos < sizeof(this->uni), TRUE);

if (this->unipos) {

this->uni[--this->unipos] = '\0';

}

show_curr_uni_char(this);

return TRUE;

}

case GDK_KEY_Return:

case GDK_KEY_KP_Enter: {

if (this->unipos) {

insert_uni_char(this);

}

/* Exit unimode. */

this->unimode = false;

this->defaultMessageContext()->clear();

return TRUE;

}

case GDK_KEY_Escape: {

// Cancel unimode.

this->unimode = false;

gtk_im_context_reset(this->imc);

this->defaultMessageContext()->clear();

return TRUE;

}

case GDK_KEY_Shift_L:

case GDK_KEY_Shift_R:

break;

default: {

if (g_ascii_isxdigit(group0_keyval)) {

g_return_val_if_fail(this->unipos < sizeof(this->uni) - 1, TRUE);

this->uni[this->unipos++] = group0_keyval;

this->uni[this->unipos] = '\0';

if (this->unipos == 8) {

/* This behaviour is partly to allow us to continue to

insert_uni_char(this);

}

show_curr_uni_char(this);

return TRUE;

} else {

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

return TRUE;

}

}

}

}

Inkscape::Text::Layout::iterator old_start = this->text_sel_start;

Inkscape::Text::Layout::iterator old_end = this->text_sel_end;

bool cursor_moved = false;

int screenlines = 1;

if (this->text) {

double spacing = sp_te_get_average_linespacing(this->text);

Geom::Rect const d = desktop->get_display_area();

screenlines = (int) floor(fabs(d.min()[Geom::Y] - d.max()[Geom::Y])/spacing) - 1;

if (screenlines <= 0)

screenlines = 1;

}

/* Neither unimode nor IM consumed key; process text tool shortcuts */

switch (group0_keyval) {

case GDK_KEY_x:

case GDK_KEY_X:

if (MOD__ALT_ONLY(event)) {

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

return TRUE;

}

break;

case GDK_KEY_space:

if (MOD__CTRL_ONLY(event)) {

/* No-break space */

if (!this->text) { // printable key; create text if none (i.e. if nascent_object)

sp_text_context_setup_text(this);

this->nascent_object = 0; // we don't need it anymore, having created a real <text>

}

this->text_sel_start = this->text_sel_end = sp_te_replace(this->text, this->text_sel_start, this->text_sel_end, "\302\240");

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

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

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

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

return TRUE;

}

break;

case GDK_KEY_U:

case GDK_KEY_u:

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

if (this->unimode) {

this->unimode = false;

this->defaultMessageContext()->clear();

} else {

this->unimode = true;

this->unipos = 0;

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

}

if (this->imc) {

gtk_im_context_reset(this->imc);

}

return TRUE;

}

break;

case GDK_KEY_B:

case GDK_KEY_b:

if (MOD__CTRL_ONLY(event) && this->text) {

SPStyle const *style = sp_te_style_at_position(this->text, std::min(this->text_sel_start, this->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(this->text, this->text_sel_start, this->text_sel_end, css);

sp_repr_css_attr_unref(css);

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Make bold"));

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

break;

case GDK_KEY_I:

case GDK_KEY_i:

if (MOD__CTRL_ONLY(event) && this->text) {

SPStyle const *style = sp_te_style_at_position(this->text, std::min(this->text_sel_start, this->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", "normal");

else

sp_repr_css_set_property(css, "font-style", "italic");

sp_te_apply_style(this->text, this->text_sel_start, this->text_sel_end, css);

sp_repr_css_attr_unref(css);

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Make italic"));

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

break;

case GDK_KEY_A:

case GDK_KEY_a:

if (MOD__CTRL_ONLY(event) && this->text) {

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

if (layout) {

this->text_sel_start = layout->begin();

this->text_sel_end = layout->end();

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

}

break;

case GDK_KEY_Return:

case GDK_KEY_KP_Enter:

{

if (!this->text) { // printable key; create text if none (i.e. if nascent_object)

sp_text_context_setup_text(this);

this->nascent_object = 0; // we don't need it anymore, having created a real <text>

}

iterator_pair enter_pair;

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

(void)success; // TODO cleanup

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

this->text_sel_start = this->text_sel_end = sp_te_insert_line(this->text, this->text_sel_start);

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("New line"));

return TRUE;

}

case GDK_KEY_BackSpace:

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

bool noSelection = false;

if (MOD__CTRL(event)) {

this->text_sel_start = this->text_sel_end;

}

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

if (MOD__CTRL(event)) {

this->text_sel_start.prevStartOfWord();

} else {

this->text_sel_start.prevCursorPosition();

}

noSelection = true;

}

iterator_pair bspace_pair;

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

if (noSelection) {

if (success) {

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

} else { // nothing deleted

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

}

} else {

if (success) {

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

} else { // nothing deleted

this->text_sel_start = bspace_pair.first;

this->text_sel_end = bspace_pair.second;

}

}

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Backspace"));

}

return TRUE;

case GDK_KEY_Delete:

case GDK_KEY_KP_Delete:

if (this->text) {

bool noSelection = false;

if (MOD__CTRL(event)) {

this->text_sel_start = this->text_sel_end;

}

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

if (MOD__CTRL(event)) {

this->text_sel_end.nextEndOfWord();

} else {

this->text_sel_end.nextCursorPosition();

}

noSelection = true;

}

iterator_pair del_pair;

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

if (noSelection) {

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

} else {

if (success) {

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

} else { // nothing deleted

this->text_sel_start = del_pair.first;

this->text_sel_end = del_pair.second;

}

}

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,

_("Delete"));

}

return TRUE;

case GDK_KEY_Left:

case GDK_KEY_KP_Left:

case GDK_KEY_KP_4:

if (this->text) {

if (MOD__ALT(event)) {

gint mul = 1 + gobble_key_events(

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

if (MOD__SHIFT(event))

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

else

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

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::maybeDone(sp_desktop_document(desktop), "kern:left", SP_VERB_CONTEXT_TEXT,

_("Kern to the left"));

} else {

if (MOD__CTRL(event))

this->text_sel_end.cursorLeftWithControl();

else

this->text_sel_end.cursorLeft();

cursor_moved = true;

break;

}

}

return TRUE;

case GDK_KEY_Right:

case GDK_KEY_KP_Right:

case GDK_KEY_KP_6:

if (this->text) {

if (MOD__ALT(event)) {

gint mul = 1 + gobble_key_events(

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

if (MOD__SHIFT(event))

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

else

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

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::maybeDone(sp_desktop_document(desktop), "kern:right", SP_VERB_CONTEXT_TEXT,

_("Kern to the right"));

} else {

if (MOD__CTRL(event))

this->text_sel_end.cursorRightWithControl();

else

this->text_sel_end.cursorRight();

cursor_moved = true;

break;

}

}

return TRUE;

case GDK_KEY_Up:

case GDK_KEY_KP_Up:

case GDK_KEY_KP_8:

if (this->text) {

if (MOD__ALT(event)) {

gint mul = 1 + gobble_key_events(

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

if (MOD__SHIFT(event))

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

else

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

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::maybeDone(sp_desktop_document(desktop), "kern:up", SP_VERB_CONTEXT_TEXT,

_("Kern up"));

} else {

if (MOD__CTRL(event))

this->text_sel_end.cursorUpWithControl();

else

this->text_sel_end.cursorUp();

cursor_moved = true;

break;

}

}

return TRUE;

case GDK_KEY_Down:

case GDK_KEY_KP_Down:

case GDK_KEY_KP_2:

if (this->text) {

if (MOD__ALT(event)) {

gint mul = 1 + gobble_key_events(

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

if (MOD__SHIFT(event))

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

else

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

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

DocumentUndo::maybeDone(sp_desktop_document(desktop), "kern:down", SP_VERB_CONTEXT_TEXT,

_("Kern down"));

} else {

if (MOD__CTRL(event))

this->text_sel_end.cursorDownWithControl();

else

this->text_sel_end.cursorDown();

cursor_moved = true;

break;

}

}

return TRUE;

case GDK_KEY_Home:

case GDK_KEY_KP_Home:

if (this->text) {

if (MOD__CTRL(event))

this->text_sel_end.thisStartOfShape();

else

this->text_sel_end.thisStartOfLine();

cursor_moved = true;

break;

}

return TRUE;

case GDK_KEY_End:

case GDK_KEY_KP_End:

if (this->text) {

if (MOD__CTRL(event))

this->text_sel_end.nextStartOfShape();

else

this->text_sel_end.thisEndOfLine();

cursor_moved = true;

break;

}

return TRUE;

case GDK_KEY_Page_Down:

case GDK_KEY_KP_Page_Down:

if (this->text) {

this->text_sel_end.cursorDown(screenlines);

cursor_moved = true;

break;

}

return TRUE;

case GDK_KEY_Page_Up:

case GDK_KEY_KP_Page_Up:

if (this->text) {

this->text_sel_end.cursorUp(screenlines);

cursor_moved = true;

break;

}

return TRUE;

case GDK_KEY_Escape:

if (this->creating) {

this->creating = 0;

if (this->grabbed) {

sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);

this->grabbed = NULL;

}

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

} else {

sp_desktop_selection(desktop)->clear();

}

this->nascent_object = FALSE;

return TRUE;

case GDK_KEY_bracketleft:

if (this->text) {

if (MOD__ALT(event) || MOD__CTRL(event)) {

if (MOD__ALT(event)) {

if (MOD__SHIFT(event)) {

// FIXME: alt+shift+[] does not work, don't know why

sp_te_adjust_rotation_screen(this->text, this->text_sel_start, this->text_sel_end, desktop, -10);

} else {

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

}

} else {

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

}

DocumentUndo::maybeDone(sp_desktop_document(desktop), "textrot:ccw", SP_VERB_CONTEXT_TEXT,

_("Rotate counterclockwise"));

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

}

break;

case GDK_KEY_bracketright:

if (this->text) {

if (MOD__ALT(event) || MOD__CTRL(event)) {

if (MOD__ALT(event)) {

if (MOD__SHIFT(event)) {

// FIXME: alt+shift+[] does not work, don't know why

sp_te_adjust_rotation_screen(this->text, this->text_sel_start, this->text_sel_end, desktop, 10);

} else {

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

}

} else {

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

}

DocumentUndo::maybeDone(sp_desktop_document(desktop), "textrot:cw", SP_VERB_CONTEXT_TEXT,

_("Rotate clockwise"));

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

}

break;

case GDK_KEY_less:

case GDK_KEY_comma:

if (this->text) {

if (MOD__ALT(event)) {

if (MOD__CTRL(event)) {

if (MOD__SHIFT(event))

sp_te_adjust_linespacing_screen(this->text, this->text_sel_start, this->text_sel_end, desktop, -10);

else

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

DocumentUndo::maybeDone(sp_desktop_document(desktop), "linespacing:dec", SP_VERB_CONTEXT_TEXT,

_("Contract line spacing"));

} else {

if (MOD__SHIFT(event))

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

else

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

DocumentUndo::maybeDone(sp_desktop_document(desktop), "letterspacing:dec", SP_VERB_CONTEXT_TEXT,

_("Contract letter spacing"));

}

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

}

break;

case GDK_KEY_greater:

case GDK_KEY_period:

if (this->text) {

if (MOD__ALT(event)) {

if (MOD__CTRL(event)) {

if (MOD__SHIFT(event))

sp_te_adjust_linespacing_screen(this->text, this->text_sel_start, this->text_sel_end, desktop, 10);

else

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

DocumentUndo::maybeDone(sp_desktop_document(desktop), "linespacing:inc", SP_VERB_CONTEXT_TEXT,

_("Expand line spacing"));

} else {

if (MOD__SHIFT(event))

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

else

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

DocumentUndo::maybeDone(sp_desktop_document(desktop), "letterspacing:inc", SP_VERB_CONTEXT_TEXT,

_("Expand letter spacing"));\

}

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

return TRUE;

}

}

break;

default:

break;

}

if (cursor_moved) {

if (!MOD__SHIFT(event))

this->text_sel_start = this->text_sel_end;

if (old_start != this->text_sel_start || old_end != this->text_sel_end) {

sp_text_context_update_cursor(this);

sp_text_context_update_text_selection(this);

}

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_KEY_Up ||

group0_keyval == GDK_KEY_Down ||

group0_keyval == GDK_KEY_KP_Up ||

group0_keyval == GDK_KEY_KP_Down )

&& !MOD__CTRL_ONLY(event)) {

return TRUE;

} else if (group0_keyval == GDK_KEY_Escape) { // cancel rubberband

if (this->creating) {

this->creating = 0;

if (this->grabbed) {

sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME);

this->grabbed = NULL;

}

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

}

} else if ((group0_keyval == GDK_KEY_x || group0_keyval == GDK_KEY_X) && MOD__ALT_ONLY(event)) {

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

return TRUE;

}

}

break;

}

case GDK_KEY_RELEASE:

if (!this->unimode && this->imc && gtk_im_context_filter_keypress(this->imc, (GdkEventKey*) event)) {

return TRUE;

}

break;

default:

break;

}

// if nobody consumed it so far

return ToolBase::root_handler(event);

}

bool sp_text_paste_inline(ToolBase *ec)

{

if (!SP_IS_TEXT_CONTEXT(ec))

return false;

TextTool *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 clip_text = refClipboard->wait_for_text();

if (!clip_text.empty()) {

// Fix for 244940

// The XML standard defines the following as valid characters

// (Extensible Markup Language (XML) 1.0 (Fourth Edition) paragraph 2.2)

// char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x10000-#x10FFFF]

// Since what comes in off the paste buffer will go right into XML, clean

// the text here.

Glib::ustring text(clip_text);

Glib::ustring::iterator itr = text.begin();

gunichar paste_string_uchar;

while(itr != text.end())

{

paste_string_uchar = *itr;

// Make sure we don't have a control character. We should really check

// for the whole range above... Add the rest of the invalid cases from

// above if we find additional issues

if(paste_string_uchar >= 0x00000020 ||

paste_string_uchar == 0x00000009 ||

paste_string_uchar == 0x0000000A ||

paste_string_uchar == 0x0000000D) {

itr++;

} else {

itr = text.erase(itr);

}

}

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;

}

DocumentUndo::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(ToolBase const *ec)

{

if (!SP_IS_TEXT_CONTEXT(ec))

return "";

TextTool 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);

}

SPCSSAttr *sp_text_get_style_at_cursor(ToolBase const *ec)

{

if (!SP_IS_TEXT_CONTEXT(ec))

return NULL;

TextTool const *tc = SP_TEXT_CONTEXT(ec);

if (tc->text == NULL)

return NULL;

SPObject const *obj = sp_te_object_at_position(tc->text, tc->text_sel_end);

if (obj) {

return take_style_from_item(const_cast<SPObject*>(obj));

}

return NULL;

}

bool sp_text_delete_selection(ToolBase *ec)

{

if (!SP_IS_TEXT_CONTEXT(ec))

return false;

TextTool *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, TextTool *tc)

{

g_assert(selection != NULL);

ToolBase *ec = SP_EVENT_CONTEXT(tc);

ec->shape_editor->unset_item(SH_KNOTHOLDER);

SPItem *item = selection->singleItem();

if (item && SP_IS_FLOWTEXT(item) && SP_FLOWTEXT(item)->has_internal_frame()) {

ec->shape_editor->set_item(item, SH_KNOTHOLDER);

}

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*/, TextTool *tc)

{

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

}

static bool sp_text_context_style_set(SPCSSAttr const *css, TextTool *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);

DocumentUndo::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, TextTool *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) && pos_obj->parent) {

pos_obj = pos_obj->parent; // 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(TextTool *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(TextTool *tc, bool scroll_to_see)

{

// 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) {

Geom::Point p0, p1;

sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);

Geom::Point const d0 = p0 * tc->text->i2dt_affine();

Geom::Point const d1 = p1 * tc->text->i2dt_affine();

// scroll to show cursor

if (scroll_to_see) {

Geom::Point const center = SP_EVENT_CONTEXT(tc)->desktop->get_display_area().midpoint();

if (Geom::L2(d0 - center) > Geom::L2(d1 - center))

// 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(d0, 1.0);

else

SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(d1, 1.0);

}

sp_canvas_item_show(tc->cursor);

tc->cursor->setCoords(d0, d1);

/* fixme: ... need another transformation to get canvas widget coordinate space? */

if (tc->imc) {

GdkRectangle im_cursor = { 0, 0, 1, 1 };

Geom::Point const top_left = SP_EVENT_CONTEXT(tc)->desktop->get_display_area().corner(3);

Geom::Point const im_d0 = SP_EVENT_CONTEXT(tc)->desktop->d2w(d0 - top_left);

Geom::Point const im_d1 = SP_EVENT_CONTEXT(tc)->desktop->d2w(d1 - top_left);

im_cursor.x = (int) floor(im_d0[Geom::X]);

im_cursor.y = (int) floor(im_d1[Geom::Y]);

im_cursor.width = (int) floor(im_d1[Geom::X]) - im_cursor.x;

im_cursor.height = (int) floor(im_d0[Geom::Y]) - im_cursor.y;

gtk_im_context_set_cursor_location(tc->imc, &im_cursor);

}

tc->show = TRUE;

tc->phase = 1;

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

int const nChars = layout->iteratorToCharIndex(layout->end());

char const *trunc = "";

bool truncated = false;

if (layout->inputTruncated()) {

truncated = true;

trunc = _(" [truncated]");

}

if (SP_IS_FLOWTEXT(tc->text)) {

SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only

if (frame) {

if (truncated) {

SP_CTRLRECT(tc->frame)->setColor(0xff0000ff, false, 0);

} else {

SP_CTRLRECT(tc->frame)->setColor(0x0000ff7f, false, 0);

}

sp_canvas_item_show(tc->frame);

Geom::OptRect frame_bbox = frame->desktopVisualBounds();

if (frame_bbox) {

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

}

}

SP_EVENT_CONTEXT(tc)->message_context->setF(Inkscape::NORMAL_MESSAGE, ngettext("Type or edit flowed text (%d character%s); <b>Enter</b> to start new paragraph.", "Type or edit flowed text (%d characters%s); <b>Enter</b> to start new paragraph.", nChars), nChars, trunc);

} else {

SP_EVENT_CONTEXT(tc)->message_context->setF(Inkscape::NORMAL_MESSAGE, ngettext("Type or edit text (%d character%s); <b>Enter</b> to start new line.", "Type or edit text (%d characters%s); <b>Enter</b> to start new line.", nChars), nChars, trunc);

}

} 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

}

}

SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);

}

static void sp_text_context_update_text_selection(TextTool *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);

sp_canvas_item_destroy(*it);

}

tc->text_selection_quads.clear();

std::vector<Geom::Point> quads;

if (tc->text != NULL)

quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, (tc->text)->i2dt_affine());

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(TextTool *tc)

{

if (tc->show) {

sp_canvas_item_show(tc->cursor);

if (tc->phase) {

tc->phase = 0;

tc->cursor->setRgba32(0x000000ff);

} else {

tc->phase = 1;

tc->cursor->setRgba32(0xffffffff);

}

}

return TRUE;

}

static void sp_text_context_forget_text(TextTool *tc)

{

if (! tc->text) return;

SPItem *ti = tc->text;

(void)ti;

/* We have to set it to zero,

tc->text = NULL;

}

gint sptc_focus_in(GtkWidget */*widget*/, GdkEventFocus */*event*/, TextTool *tc)

{

gtk_im_context_focus_in(tc->imc);

return FALSE;

}

gint sptc_focus_out(GtkWidget */*widget*/, GdkEventFocus */*event*/, TextTool *tc)

{

gtk_im_context_focus_out(tc->imc);

return FALSE;

}

static void sptc_commit(GtkIMContext */*imc*/, gchar *string, TextTool *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);

DocumentUndo::done(tc->text->document, SP_VERB_CONTEXT_TEXT,

_("Type text"));

}

void sp_text_context_place_cursor (TextTool *tc, SPObject *text, Inkscape::Text::Layout::iterator where)

{

tc->desktop->selection->set (text);

tc->text_sel_start = tc->text_sel_end = where;

sp_text_context_update_cursor(tc);

sp_text_context_update_text_selection(tc);

}

void sp_text_context_place_cursor_at (TextTool *tc, SPObject *text, Geom::Point const p)

{

tc->desktop->selection->set (text);

sp_text_context_place_cursor (tc, text, sp_te_get_position_by_coords(tc->text, p));

}

Inkscape::Text::Layout::iterator *sp_text_context_get_cursor_position(TextTool *tc, SPObject *text)

{

if (text != tc->text)

return NULL;

return &(tc->text_sel_end);

}

}

}

}