anne/lyx_mirror
1
0
Fork 0
mirror of https://git.lyx.org/repos/lyx.git synced 2024-11-11 05:33:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
391d71dab2
lyx_mirror/src/BufferView.C
Lars Gullik Bjønnes cfdd73ea94 new painter,workarea and lcolor. Read the diff/sources and ChangeLog... 
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@550 a592a061-630c-0410-9148-cb99ea01b6c8
2000-02-10 17:53:36 +00:00

2588 lines
61 KiB
C
Raw Blame History

// -*- C++ -*-
/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2000 The LyX Team.
*
* ====================================================== */
#include <config.h>
#include <algorithm>
using std::for_each;
#include <cstdlib>
#include <csignal>
#include <unistd.h>
#include <sys/wait.h>
#include "support/lstrings.h"
#ifdef __GNUG__
#pragma implementation
#endif
#include "commandtags.h"
#include "BufferView.h"
#include "bufferlist.h"
#include "LyXView.h"
#include "lyxfunc.h"
#include "insets/lyxinset.h"
#include "minibuffer.h"
#include "lyxscreen.h"
#ifndef NEW_WA
#include "up.xpm"
#include "down.xpm"
#endif
#include "debug.h"
#include "lyxdraw.h"
#include "lyx_gui_misc.h"
#include "BackStack.h"
#include "lyxtext.h"
#include "lyx_cb.h"
#include "gettext.h"
#include "layout.h"
#include "TextCache.h"
#include "intl.h"
#include "lyxrc.h"
#include "lyxrow.h"
#include "WorkArea.h"
using std::find_if;
extern BufferList bufferlist;
extern LyXRC * lyxrc;
void sigchldhandler(pid_t pid, int * status);
extern void SetXtermCursor(Window win);
extern bool input_prohibited;
extern bool selection_possible;
extern char ascii_type;
extern void MenuPasteSelection(char at);
extern InsetUpdateStruct * InsetUpdateList;
extern void UpdateInsetUpdateList();
extern void FreeUpdateTimer();
#ifndef NEW_WA
// This is _very_ temporary
FL_OBJECT * figinset_canvas;
#endif
BufferView::BufferView(LyXView * o, int xpos, int ypos,
int width, int height)
: owner_(o)
{
buffer_ = 0;
text = 0;
screen = 0;
#ifdef NEW_WA
workarea = new WorkArea(this, xpos, ypos, width, height);
#else
figinset_canvas = 0;
work_area = 0;
scrollbar = 0;
button_down = 0;
button_up = 0;
#endif
timer_cursor = 0;
create_view(xpos, ypos, width, height);
current_scrollbar_value = 0;
// Activate the timer for the cursor
fl_set_timer(timer_cursor, 0.4);
#ifdef NEW_WA
workarea->setFocus();
#else
fl_set_focus_object(owner_->getForm(), work_area);
#endif
work_area_focus = true;
lyx_focus = false;
the_locking_inset = 0;
inset_slept = false;
}
BufferView::~BufferView()
{
delete text;
}
#ifdef USE_PAINTER
Painter & BufferView::painter()
{
return workarea->getPainter();
}
#endif
void BufferView::buffer(Buffer * b)
{
lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
<< b << ")" << endl;
if (buffer_) {
insetSleep();
buffer_->delUser(this);
// Put the old text into the TextCache, but
// only if the buffer is still loaded.
textcache.add(text);
if (lyxerr.debugging())
textcache.show(lyxerr, "BufferView::buffer");
text = 0;
}
// Set current buffer
buffer_ = b;
if (bufferlist.getState() == BufferList::CLOSING) return;
// Nuke old image
// screen is always deleted when the buffer is changed.
delete screen;
screen = 0;
// If we are closing the buffer, use the first buffer as current
if (!buffer_) {
buffer_ = bufferlist.first();
}
if (buffer_) {
lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
buffer_->addUser(this);
owner_->getMenus()->showMenus();
// If we don't have a text object for this, we make one
if (text == 0)
resizeCurrentBuffer();
else {
updateScreen();
updateScrollbar();
}
screen->first = screen->TopCursorVisible();
redraw();
updateAllVisibleBufferRelatedPopups();
insetWakeup();
} else {
lyxerr[Debug::INFO] << " No Buffer!" << endl;
owner_->getMenus()->hideMenus();
updateScrollbar();
#ifdef NEW_WA
workarea->redraw();
#else
fl_redraw_object(work_area);
#endif
// Also remove all remaining text's from the testcache.
// (there should not be any!) (if there is any it is a
// bug!)
if (lyxerr.debugging())
textcache.show(lyxerr, "buffer delete all");
textcache.clear();
}
// should update layoutchoice even if we don't have a buffer.
owner_->updateLayoutChoice();
owner_->getMiniBuffer()->Init();
owner_->updateWindowTitle();
}
void BufferView::updateScreen()
{
// Regenerate the screen.
delete screen;
#ifdef NEW_WA
screen = new LyXScreen(this,
workarea->getWin(),
workarea->getPixmap(),
workarea->workWidth(),
workarea->height(),
workarea->xpos(),
workarea->ypos(),
text);
#else
screen = new LyXScreen(FL_ObjWin(work_area),
work_area->w,
work_area->h,
work_area->x,
work_area->y,
text);
#endif
}
#ifdef NEW_WA
void BufferView::resize(int xpos, int ypos, int width, int height)
{
workarea->resize(xpos, ypos, width, height);
update(3);
redraw();
}
#endif
void BufferView::resize()
{
// This will resize the buffer. (Asger)
if (buffer_)
resizeCurrentBuffer();
}
#ifndef NEW_WA
static bool lgb_hack = false;
#endif
void BufferView::redraw()
{
lyxerr[Debug::INFO] << "BufferView::redraw()" << endl;
#ifdef NEW_WA
workarea->redraw();
#else
lgb_hack = true;
fl_redraw_object(work_area);
fl_redraw_object(scrollbar);
fl_redraw_object(button_down);
fl_redraw_object(button_up);
lgb_hack = false;
#endif
}
void BufferView::fitCursor()
{
if (screen) screen->FitCursor();
updateScrollbar();
}
void BufferView::update()
{
if (screen) screen->Update();
}
void BufferView::updateScrollbar()
{
/* If the text is smaller than the working area, the scrollbar
* maximum must be the working area height. No scrolling will
* be possible */
if (!buffer_) {
#ifdef NEW_WA
workarea->setScrollbar(0, 1.0);
#else
fl_set_slider_value(scrollbar, 0);
fl_set_slider_size(scrollbar, scrollbar->h);
#endif
return;
}
static long max2 = 0;
static long height2 = 0;
long cbth = 0;
long cbsf = 0;
if (text)
cbth = text->height;
if (screen)
cbsf = screen->first;
// check if anything has changed.
#ifdef NEW_WA
if (max2 == cbth &&
height2 == workarea->height() &&
current_scrollbar_value == cbsf)
return; // no
max2 = cbth;
height2 = workarea->height();
current_scrollbar_value = cbsf;
#else
if (max2 == cbth &&
height2 == work_area->h &&
current_scrollbar_value == cbsf)
return; // no
max2 = cbth;
height2 = work_area->h;
current_scrollbar_value = cbsf;
#endif
if (cbth <= height2) { // text is smaller than screen
#ifdef NEW_WA
workarea->setScrollbar(0, 1.0); // right?
#else
fl_set_slider_size(scrollbar, scrollbar->h);
#endif
return;
}
#ifdef NEW_WA
long maximum_height = workarea->height() * 3 / 4 + cbth;
#else
long maximum_height = work_area->h * 3 / 4 + cbth;
#endif
long value = cbsf;
// set the scrollbar
#ifdef NEW_WA
double hfloat = workarea->height();
#else
double hfloat = work_area->h;
#endif
double maxfloat = maximum_height;
#ifdef NEW_WA
float slider_size = 0.0;
int slider_value = value;
workarea->setScrollbarBounds(0, text->height - workarea->height());
double lineh = text->DefaultHeight();
workarea->setScrollbarIncrements(lineh);
if (maxfloat > 0.0) {
if ((hfloat / maxfloat) * float(height2) < 3)
slider_size = 3.0/float(height2);
else
slider_size = hfloat / maxfloat;
} else
slider_size = hfloat;
workarea->setScrollbar(slider_value, slider_size / workarea->height());
#else
fl_set_slider_value(scrollbar, value);
fl_set_slider_bounds(scrollbar, 0,
maximum_height - work_area->h);
double lineh = text->DefaultHeight();
fl_set_slider_increment(scrollbar, work_area->h-lineh, lineh);
if (maxfloat > 0){
if ((hfloat / maxfloat) * float(height2) < 3)
fl_set_slider_size(scrollbar,
3 / float(height2));
else
fl_set_slider_size(scrollbar,
hfloat / maxfloat);
} else
fl_set_slider_size(scrollbar, hfloat);
fl_set_slider_precision(scrollbar, 0);
#endif
}
void BufferView::redoCurrentBuffer()
{
lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
if (buffer_ && text) {
resize();
owner_->updateLayoutChoice();
}
}
int BufferView::resizeCurrentBuffer()
{
lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
LyXParagraph * par = 0;
LyXParagraph * selstartpar = 0;
LyXParagraph * selendpar = 0;
int pos = 0;
int selstartpos = 0;
int selendpos = 0;
int selection = 0;
int mark_set = 0;
ProhibitInput();
owner_->getMiniBuffer()->Set(_("Formatting document..."));
if (text) {
par = text->cursor.par;
pos = text->cursor.pos;
selstartpar = text->sel_start_cursor.par;
selstartpos = text->sel_start_cursor.pos;
selendpar = text->sel_end_cursor.par;
selendpos = text->sel_end_cursor.pos;
selection = text->selection;
mark_set = text->mark_set;
delete text;
#ifdef NEW_WA
text = new LyXText(this, workarea->workWidth(), buffer_);
#else
text = new LyXText(work_area->w, buffer_);
#endif
} else {
// See if we have a text in TextCache that fits
// the new buffer_ with the correct width.
#ifdef NEW_WA
text = textcache.findFit(buffer_, workarea->workWidth());
#else
text = textcache.findFit(buffer_, work_area->w);
#endif
if (text) {
if (lyxerr.debugging()) {
lyxerr << "Found a LyXText that fits:\n";
textcache.show(lyxerr, text);
}
if (lyxerr.debugging())
textcache.show(lyxerr, "resizeCurrentBuffer");
} else {
#ifdef NEW_WA
text = new LyXText(this, workarea->workWidth(), buffer_);
#else
text = new LyXText(work_area->w, buffer_);
#endif
}
}
updateScreen();
if (par) {
text->selection = true;
/* at this point just to avoid the Delete-Empty-Paragraph
* Mechanism when setting the cursor */
text->mark_set = mark_set;
if (selection) {
text->SetCursor(selstartpar, selstartpos);
text->sel_cursor = text->cursor;
text->SetCursor(selendpar, selendpos);
text->SetSelection();
text->SetCursor(par, pos);
} else {
text->SetCursor(par, pos);
text->sel_cursor = text->cursor;
text->selection = false;
}
}
screen->first = screen->TopCursorVisible(); /* this will scroll the
* screen such that the
* cursor becomes
* visible */
updateScrollbar();
redraw();
owner_->getMiniBuffer()->Init();
SetState();
AllowInput();
// Now if the title form still exist kill it
TimerCB(0, 0);
return 0;
}
void BufferView::gotoError()
{
if (!screen)
return;
screen->HideCursor();
beforeChange();
update(-2);
LyXCursor tmp;
if (!text->GotoNextError()) {
if (text->cursor.pos
|| text->cursor.par != text->FirstParagraph()) {
tmp = text->cursor;
text->cursor.par = text->FirstParagraph();
text->cursor.pos = 0;
if (!text->GotoNextError()) {
text->cursor = tmp;
owner_->getMiniBuffer()
->Set(_("No more errors"));
LyXBell();
}
} else {
owner_->getMiniBuffer()->Set(_("No more errors"));
LyXBell();
}
}
update(0);
text->sel_cursor = text->cursor;
}
#ifdef NEW_WA
extern "C" {
void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf)
{
BufferView::CursorToggleCB(ob, buf);
}
}
#else
extern "C" {
// Just a bunch of C wrappers around static members of BufferView
void C_BufferView_UpCB(FL_OBJECT * ob, long buf)
{
BufferView::UpCB(ob, buf);
}
void C_BufferView_DownCB(FL_OBJECT * ob, long buf)
{
BufferView::DownCB(ob, buf);
}
void C_BufferView_ScrollCB(FL_OBJECT * ob, long buf)
{
BufferView::ScrollCB(ob, buf);
}
void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf)
{
BufferView::CursorToggleCB(ob, buf);
}
int C_BufferView_work_area_handler(FL_OBJECT * ob, int event,
FL_Coord, FL_Coord,
int key, void * xev)
{
return BufferView::work_area_handler(ob, event,
0, 0, key, xev);
}
}
#endif
void BufferView::create_view(int xpos, int ypos, int width, int height)
{
FL_OBJECT * obj;
#ifndef NEW_WA
int const bw = abs(fl_get_border_width());
// a hack for the figinsets (Matthias)
// This one first, then it will probably be invisible. (Lgb)
::figinset_canvas = figinset_canvas = obj =
fl_add_canvas(FL_NORMAL_CANVAS,
xpos + 1,
ypos + 1, 1, 1, "");
fl_set_object_boxtype(obj, FL_NO_BOX);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
// a box
obj = fl_add_box(FL_BORDER_BOX, xpos, ypos,
width - 15,
height, "");
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
// the free object
work_area = obj = fl_add_free(FL_INPUT_FREE,
xpos + bw, ypos + bw,
width - 15 - 2 * bw /* scrollbarwidth */,
height - 2 * bw, "",
C_BufferView_work_area_handler);
obj->wantkey = FL_KEY_TAB;
obj->u_vdata = this; /* This is how we pass the BufferView
to the work_area_handler. */
fl_set_object_boxtype(obj, FL_DOWN_BOX);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
//
// THE SCROLLBAR
//
// up - scrollbar button
fl_set_border_width(-1); // to get visual feedback
button_up = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
width - 15 + 4 * bw,
ypos,
15, 15, "");
fl_set_object_boxtype(obj, FL_UP_BOX);
fl_set_object_color(obj, FL_MCOL, FL_BLUE);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthEastGravity, NorthEastGravity);
fl_set_object_callback(obj, C_BufferView_UpCB, 0);
obj->u_vdata = this;
fl_set_pixmapbutton_data(obj, const_cast<char**>(up_xpm));
// Remove the blue feedback rectangle
fl_set_pixmapbutton_focus_outline(obj, 0);
// the scrollbar slider
fl_set_border_width(-bw);
scrollbar = obj = fl_add_slider(FL_VERT_SLIDER,
width - 15 + 4 * bw,
ypos + 15,
15, height - 30, "");
fl_set_object_color(obj, FL_COL1, FL_MCOL);
fl_set_object_boxtype(obj, FL_UP_BOX);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
fl_set_object_callback(obj, C_BufferView_ScrollCB, 0);
obj->u_vdata = this;
// down - scrollbar button
fl_set_border_width(-1); // to get visible feedback
button_down = obj = fl_add_pixmapbutton(FL_TOUCH_BUTTON,
width - 15 + 4 * bw,
ypos + height - 15,
15, 15, "");
fl_set_object_boxtype(obj, FL_UP_BOX);
fl_set_object_color(obj, FL_MCOL, FL_BLUE);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, SouthEastGravity, SouthEastGravity);
fl_set_object_callback(obj, C_BufferView_DownCB, 0);
obj->u_vdata = this;
fl_set_pixmapbutton_data(obj, const_cast<char**>(down_xpm));
fl_set_border_width(-bw);
// Remove the blue feedback rectangle
fl_set_pixmapbutton_focus_outline(obj, 0);
#endif
//
// TIMERS
//
// timer_cursor
timer_cursor = obj = fl_add_timer(FL_HIDDEN_TIMER,
0, 0, 0, 0, "Timer");
fl_set_object_callback(obj, C_BufferView_CursorToggleCB, 0);
obj->u_vdata = this;
}
// Callback for scrollbar up button
#ifdef NEW_WA
void BufferView::UpCB(long time, int button)
{
if (buffer_ == 0) return;
switch (button) {
case 3:
ScrollUpOnePage();
break;
case 2:
ScrollDownOnePage();
break;
default:
ScrollUp(time);
break;
}
}
#else
void BufferView::UpCB(FL_OBJECT * ob, long)
{
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
if (view->buffer_ == 0) return;
static long time = 0;
XEvent const * ev2 = fl_last_event();
if (ev2->type == ButtonPress || ev2->type == ButtonRelease)
time = 0;
int button = fl_get_button_numb(ob);
switch (button) {
case 3:
view->ScrollUpOnePage(time++); break;
case 2:
view->ScrollDownOnePage(time++); break;
default:
view->ScrollUp(time++); break;
}
}
#endif
static inline
void waitForX()
{
XSync(fl_get_display(), 0);
}
// Callback for scrollbar slider
#ifdef NEW_WA
void BufferView::ScrollCB(double value)
{
extern bool cursor_follows_scrollbar;
if (buffer_ == 0) return;
current_scrollbar_value = long(value);
if (current_scrollbar_value < 0)
current_scrollbar_value = 0;
if (!screen)
return;
screen->Draw(current_scrollbar_value);
if (cursor_follows_scrollbar) {
LyXText * vbt = text;
int height = vbt->DefaultHeight();
if (vbt->cursor.y < screen->first + height) {
vbt->SetCursorFromCoordinates(0,
screen->first +
height);
} else if (vbt->cursor.y >
screen->first + workarea->height() - height) {
vbt->SetCursorFromCoordinates(0,
screen->first +
workarea->height() -
height);
}
}
waitForX();
}
#else
void BufferView::ScrollCB(FL_OBJECT * ob, long)
{
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
extern bool cursor_follows_scrollbar;
if (view->buffer_ == 0) return;
view->current_scrollbar_value = long(fl_get_slider_value(ob));
if (view->current_scrollbar_value < 0)
view->current_scrollbar_value = 0;
if (!view->screen)
return;
view->screen->Draw(view->current_scrollbar_value);
if (cursor_follows_scrollbar) {
LyXText * vbt = view->text;
int height = vbt->DefaultHeight();
if (vbt->cursor.y < view->screen->first + height) {
vbt->SetCursorFromCoordinates(0,
view->screen->first +
height);
}
else if (vbt->cursor.y >
view->screen->first + view->work_area->h - height) {
vbt->SetCursorFromCoordinates(0,
view->screen->first +
view->work_area->h -
height);
}
}
waitForX();
}
#endif
// Callback for scrollbar down button
#ifdef NEW_WA
void BufferView::DownCB(long time, int button)
{
if (buffer_ == 0) return;
switch (button) {
case 2:
ScrollUpOnePage();
break;
case 3:
ScrollDownOnePage();
break;
default:
ScrollDown(time);
break;
}
}
#else
void BufferView::DownCB(FL_OBJECT * ob, long)
{
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
if (view->buffer_ == 0) return;
XEvent const * ev2;
static long time = 0;
ev2 = fl_last_event();
if (ev2->type == ButtonPress || ev2->type == ButtonRelease)
time = 0;
int button = fl_get_button_numb(ob);
switch (button) {
case 2:
view->ScrollUpOnePage(time++); break;
case 3:
view->ScrollDownOnePage(time++); break;
default:
view->ScrollDown(time++); break;
}
}
#endif
#ifdef NEW_WA
int BufferView::ScrollUp(long time)
{
if (buffer_ == 0) return 0;
if (!screen) return 0;
double value = workarea->getScrollbarValue();
if (value == 0) return 0;
float add_value = (text->DefaultHeight()
+ float(time) * float(time) * 0.125);
if (add_value > workarea->height())
add_value = float(workarea->height() -
text->DefaultHeight());
value -= add_value;
if (value < 0)
value = 0;
workarea->setScrollbarValue(value);
ScrollCB(value);
return 0;
}
#else
int BufferView::ScrollUp(long time)
{
if (buffer_ == 0) return 0;
if (!screen) return 0;
double value = fl_get_slider_value(scrollbar);
if (value == 0) return 0;
float add_value = (text->DefaultHeight()
+ float(time) * float(time) * 0.125);
if (add_value > work_area->h)
add_value = float(work_area->h -
text->DefaultHeight());
value -= add_value;
if (value < 0)
value = 0;
fl_set_slider_value(scrollbar, value);
ScrollCB(scrollbar, 0);
return 0;
}
#endif
#ifdef NEW_WA
int BufferView::ScrollDown(long time)
{
if (buffer_ == 0) return 0;
if (!screen) return 0;
double value= workarea->getScrollbarValue();
pair<double, double> p = workarea->getScrollbarBounds();
double max = p.second;
if (value == max) return 0;
float add_value = (text->DefaultHeight()
+ float(time) * float(time) * 0.125);
if (add_value > workarea->height())
add_value = float(workarea->height() -
text->DefaultHeight());
value += add_value;
if (value > max)
value = max;
workarea->setScrollbarValue(value);
ScrollCB(value);
return 0;
}
#else
int BufferView::ScrollDown(long time)
{
if (buffer_ == 0) return 0;
if (!screen) return 0;
double value= fl_get_slider_value(scrollbar);
double min, max;
fl_get_slider_bounds(scrollbar, &min, &max);
if (value == max) return 0;
float add_value = (text->DefaultHeight()
+ float(time) * float(time) * 0.125);
if (add_value > work_area->h)
add_value = float(work_area->h -
text->DefaultHeight());
value += add_value;
if (value > max)
value = max;
fl_set_slider_value(scrollbar, value);
ScrollCB(scrollbar, 0);
return 0;
}
#endif
#ifdef NEW_WA
void BufferView::ScrollUpOnePage()
{
if (buffer_ == 0) return;
if (!screen) return;
long y = screen->first;
if (!y) return;
Row * row = text->GetRowNearY(y);
y = y - workarea->height() + row->height;
workarea->setScrollbarValue(y);
ScrollCB(y);
}
#else
void BufferView::ScrollUpOnePage(long /*time*/)
{
if (buffer_ == 0) return;
if (!screen) return;
long y = screen->first;
if (!y) return;
Row * row = text->GetRowNearY(y);
y = y - work_area->h + row->height;
fl_set_slider_value(scrollbar, y);
ScrollCB(scrollbar, 0);
}
#endif
#ifdef NEW_WA
void BufferView::ScrollDownOnePage()
{
if (buffer_ == 0) return;
if (!screen) return;
long y = screen->first;
if (y > text->height - workarea->height())
return;
y += workarea->height();
text->GetRowNearY(y);
workarea->setScrollbarValue(y);
ScrollCB(y);
}
#else
void BufferView::ScrollDownOnePage(long /*time*/)
{
if (buffer_ == 0) return;
if (!screen) return;
double min, max;
fl_get_slider_bounds(scrollbar, &min, &max);
long y = screen->first;
if (y > text->height - work_area->h)
return;
y += work_area->h;
text->GetRowNearY(y);
fl_set_slider_value(scrollbar, y);
ScrollCB(scrollbar, 0);
}
#endif
#ifndef NEW_WA
int BufferView::work_area_handler(FL_OBJECT * ob, int event,
FL_Coord, FL_Coord ,
int /*key*/, void * xev)
{
static int x_old = -1;
static int y_old = -1;
static long scrollbar_value_old = -1;
XEvent * ev = static_cast<XEvent*>(xev);
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
// If we don't have a view yet; return
if (!view || quitting) return 0;
switch (event){
case FL_DRAW:
view->workAreaExpose();
break;
case FL_PUSH:
view->WorkAreaButtonPress(ob, 0, 0, 0, ev, 0);
break;
case FL_RELEASE:
view->WorkAreaButtonRelease(ob, 0, 0, 0, ev, 0);
break;
case FL_MOUSE:
if (ev->xmotion.x != x_old ||
ev->xmotion.y != y_old ||
view->current_scrollbar_value != scrollbar_value_old) {
x_old = ev->xmotion.x;
y_old = ev->xmotion.y;
scrollbar_value_old = view->current_scrollbar_value;
view->WorkAreaMotionNotify(ob, 0, 0, 0, ev, 0);
}
break;
// Done by the raw callback:
// case FL_KEYBOARD:
// WorkAreaKeyPress(ob, 0, 0, 0, ev, 0); break;
case FL_FOCUS:
if (!view->owner_->getMiniBuffer()->shows_no_match)
view->owner_->getMiniBuffer()->Init();
view->owner_->getMiniBuffer()->shows_no_match = false;
view->work_area_focus = true;
fl_set_timer(view->timer_cursor, 0.4);
break;
case FL_UNFOCUS:
view->owner_->getMiniBuffer()->ExecCommand();
view->work_area_focus = false;
break;
case FL_ENTER:
SetXtermCursor(view->owner_->getForm()->window);
// reset the timer
view->lyx_focus = true;
fl_set_timer(view->timer_cursor, 0.4);
break;
case FL_LEAVE:
if (!input_prohibited)
XUndefineCursor(fl_display,
view->owner_->getForm()->window);
view->lyx_focus = false; // This is not an absolute truth
// but if it is not true, it will be changed within a blink
// of an eye. ... Not good enough... use regulare timeperiod
//fl_set_timer(view->timer_cursor, 0.01); // 0.1 sec blink
fl_set_timer(view->timer_cursor, 0.4); // 0.4 sec blink
break;
case FL_DBLCLICK:
// select a word
if (!view->the_locking_inset) {
if (view->screen && ev->xbutton.button == 1) {
view->screen->HideCursor();
view->screen->ToggleSelection();
view->text->SelectWord();
view->screen->ToggleSelection(false);
/* This will fit the cursor on the screen
* if necessary */
view->update(0);
}
}
break;
case FL_TRPLCLICK:
// select a line
if (view->buffer_ && view->screen && ev->xbutton.button == 1) {
view->screen->HideCursor();
view->screen->ToggleSelection();
view->text->CursorHome();
view->text->sel_cursor = view->text->cursor;
view->text->CursorEnd();
view->text->SetSelection();
view->screen->ToggleSelection(false);
/* This will fit the cursor on the screen
* if necessary */
view->update(0);
}
break;
case FL_OTHER:
view->WorkAreaSelectionNotify(ob,
view->owner_->getForm()->window,
0, 0, ev, 0);
break;
}
return 1;
}
#endif
#ifdef NEW_WA
void BufferView::WorkAreaMotionNotify(int x, int y, unsigned int state)
{
if (buffer_ == 0 || !screen) return;
// Check for inset locking
if (the_locking_inset) {
LyXCursor cursor = text->cursor;
the_locking_inset->
InsetMotionNotify(x - cursor.x,
y - cursor.y,
state);
return;
}
// Only use motion with button 1
if (!state & Button1MotionMask)
return;
/* The selection possible is needed, that only motion events are
* used, where the bottom press event was on the drawing area too */
if (selection_possible) {
screen->HideCursor();
text->SetCursorFromCoordinates(x, y + screen->first);
if (!text->selection)
update(-3); // Maybe an empty line was deleted
text->SetSelection();
screen->ToggleToggle();
if (screen->FitCursor())
updateScrollbar();
screen->ShowCursor();
}
return;
}
#else
int BufferView::WorkAreaMotionNotify(FL_OBJECT * ob, Window,
int /*w*/, int /*h*/,
XEvent * ev, void * /*d*/)
{
if (buffer_ == 0) return 0;
if (!screen) return 0;
// Check for inset locking
if (the_locking_inset) {
LyXCursor cursor = text->cursor;
the_locking_inset->
InsetMotionNotify(ev->xbutton.x - ob->x - cursor.x,
ev->xbutton.y - ob->y -
(cursor.y),
ev->xbutton.state);
return 0;
}
// Only use motion with button 1
if (!ev->xmotion.state & Button1MotionMask)
return 0;
/* The selection possible is needed, that only motion events are
* used, where the bottom press event was on the drawing area too */
if (selection_possible) {
screen->HideCursor();
text->SetCursorFromCoordinates(ev->xbutton.x - ob->x,
ev->xbutton.y - ob->y +
screen->first);
if (!text->selection)
update(-3); // Maybe an empty line was deleted
text->SetSelection();
screen->ToggleToggle();
if (screen->FitCursor())
updateScrollbar();
screen->ShowCursor();
}
return 0;
}
#endif
#ifdef USE_PAINTER
extern int bibitemMaxWidth(Painter &, LyXFont const &);
#else
extern int bibitemMaxWidth(LyXFont const &);
#endif
// Single-click on work area
#ifdef NEW_WA
void BufferView::WorkAreaButtonPress(int xpos, int ypos, unsigned int button)
{
last_click_x = -1;
last_click_y = -1;
if (buffer_ == 0 || !screen) return;
Inset * inset_hit = checkInsetHit(xpos, ypos);
// ok ok, this is a hack.
if (button == 4 || button == 5) {
switch (button) {
case 4:
ScrollUp(100); // This number is only temporary
break;
case 5:
ScrollDown(100);
break;
}
}
if (the_locking_inset) {
// We are in inset locking mode
/* Check whether the inset was hit. If not reset mode,
otherwise give the event to the inset */
if (inset_hit) {
the_locking_inset->
InsetButtonPress(xpos, ypos,
button);
return;
} else {
unlockInset(the_locking_inset);
}
}
selection_possible = true;
screen->HideCursor();
// Right button mouse click on a table
if (button == 3 &&
(text->cursor.par->table ||
text->MouseHitInTable(xpos, ypos + screen->first))) {
// Set the cursor to the press-position
text->SetCursorFromCoordinates(xpos, ypos + screen->first);
bool doit = true;
// Only show the table popup if the hit is in
// the table, too
if (!text->HitInTable(text->cursor.row, xpos))
doit = false;
// Hit above or below the table?
if (doit) {
if (!text->selection) {
screen->ToggleSelection();
text->ClearSelection();
text->FullRebreak();
screen->Update();
updateScrollbar();
}
// Popup table popup when on a table.
// This is obviously temporary, since we
// should be able to popup various
// context-sensitive-menus with the
// the right mouse. So this should be done more
// general in the future. Matthias.
selection_possible = false;
owner_->getLyXFunc()
->Dispatch(LFUN_LAYOUT_TABLE,
"true");
return;
}
}
int screen_first = screen->first;
// Middle button press pastes if we have a selection
bool paste_internally = false;
if (button == 2
&& text->selection) {
owner_->getLyXFunc()->Dispatch(LFUN_COPY);
paste_internally = true;
}
// Clear the selection
screen->ToggleSelection();
text->ClearSelection();
text->FullRebreak();
screen->Update();
updateScrollbar();
// Single left click in math inset?
if (inset_hit != 0 && inset_hit->Editable() == 2) {
// Highly editable inset, like math
selection_possible = false;
owner_->updateLayoutChoice();
owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
inset_hit->Edit(xpos, ypos);
return;
}
// Right click on a footnote flag opens float menu
if (button == 3) {
selection_possible = false;
return;
}
text->SetCursorFromCoordinates(xpos, ypos + screen_first);
text->FinishUndo();
text->sel_cursor = text->cursor;
text->cursor.x_fix = text->cursor.x;
owner_->updateLayoutChoice();
if (screen->FitCursor()){
updateScrollbar();
selection_possible = false;
}
// Insert primary selection with middle mouse
// if there is a local selection in the current buffer,
// insert this
if (button == 2) {
if (paste_internally)
owner_->getLyXFunc()->Dispatch(LFUN_PASTE);
else
owner_->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
"paragraph");
selection_possible = false;
return;
}
}
#else
int BufferView::WorkAreaButtonPress(FL_OBJECT * ob, Window,
int /*w*/, int /*h*/,
XEvent * ev, void */*d*/)
{
last_click_x = -1;
last_click_y = -1;
if (buffer_ == 0) return 0;
if (!screen) return 0;
int const x = ev->xbutton.x - ob->x;
int const y = ev->xbutton.y - ob->y;
// If we hit an inset, we have the inset coordinates in these
// and inset_hit points to the inset. If we do not hit an
// inset, inset_hit is 0, and inset_x == x, inset_y == y.
int inset_x = x;
int inset_y = y;
Inset * inset_hit = checkInsetHit(inset_x, inset_y);
// ok ok, this is a hack.
int button = ev->xbutton.button;
if (button == 4 || button == 5) goto wheel;
{
if (the_locking_inset) {
// We are in inset locking mode
/* Check whether the inset was hit. If not reset mode,
otherwise give the event to the inset */
if (inset_hit != 0) {
the_locking_inset->
InsetButtonPress(inset_x, inset_y,
button);
return 0;
} else {
unlockInset(the_locking_inset);
}
}
selection_possible = true;
screen->HideCursor();
// Right button mouse click on a table
if (button == 3 &&
(text->cursor.par->table ||
text->MouseHitInTable(x, y + screen->first))) {
// Set the cursor to the press-position
text->SetCursorFromCoordinates(x, y + screen->first);
bool doit = true;
// Only show the table popup if the hit is in
// the table, too
if (!text->HitInTable(text->cursor.row, x))
doit = false;
// Hit above or below the table?
if (doit) {
if (!text->selection) {
screen->ToggleSelection();
text->ClearSelection();
text->FullRebreak();
screen->Update();
updateScrollbar();
}
// Popup table popup when on a table.
// This is obviously temporary, since we
// should be able to popup various
// context-sensitive-menus with the
// the right mouse. So this should be done more
// general in the future. Matthias.
selection_possible = false;
owner_->getLyXFunc()
->Dispatch(LFUN_LAYOUT_TABLE,
"true");
return 0;
}
}
int screen_first = screen->first;
// Middle button press pastes if we have a selection
bool paste_internally = false;
if (button == 2 // && !buffer_->the_locking_inset
&& text->selection) {
owner_->getLyXFunc()->Dispatch(LFUN_COPY);
paste_internally = true;
}
// Clear the selection
screen->ToggleSelection();
text->ClearSelection();
text->FullRebreak();
screen->Update();
updateScrollbar();
// Single left click in math inset?
if (inset_hit != 0 && inset_hit->Editable() == 2) {
// Highly editable inset, like math
selection_possible = false;
owner_->updateLayoutChoice();
owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
inset_hit->Edit(inset_x, inset_y);
return 0;
}
// Right click on a footnote flag opens float menu
if (button == 3) {
selection_possible = false;
return 0;
}
text->SetCursorFromCoordinates(x, y + screen_first);
text->FinishUndo();
text->sel_cursor = text->cursor;
text->cursor.x_fix = text->cursor.x;
owner_->updateLayoutChoice();
if (screen->FitCursor()){
updateScrollbar();
selection_possible = false;
}
// Insert primary selection with middle mouse
// if there is a local selection in the current buffer,
// insert this
if (button == 2) { // && !buffer_->the_locking_inset){
if (paste_internally)
owner_->getLyXFunc()->Dispatch(LFUN_PASTE);
else
owner_->getLyXFunc()->Dispatch(LFUN_PASTESELECTION,
"paragraph");
selection_possible = false;
return 0;
}
}
goto out;
wheel:
{
// I am not quite sure if this is the correct place to put
// this, but it will not cause any harm.
// Patch from Mark Huang (markman@mit.edu) to make LyX
// recognise button 4 and 5. This enables LyX use use
// the scrollwhell on certain mice for something useful. (Lgb)
// Added wheel acceleration detection code. (Rvdk)
static Time lastTime = 0;
int diff = ev->xbutton.time - lastTime;
int scroll = int(1.0 + (4.0 / (abs(diff) + 1.0)) * 200.0);
switch (button) {
case 4:
ScrollUp(scroll);
break;
case 5:
ScrollDown(scroll);
break;
}
lastTime = ev->xbutton.time;
return 0;
}
out:
last_click_x = x;
last_click_y = y;
return 0;
}
#endif
#ifdef NEW_WA
void BufferView::WorkAreaButtonRelease(int x, int y, unsigned int button)
{
if (buffer_ == 0 || screen == 0) return;
// If we hit an inset, we have the inset coordinates in these
// and inset_hit points to the inset. If we do not hit an
// inset, inset_hit is 0, and inset_x == x, inset_y == y.
Inset * inset_hit = checkInsetHit(x, y);
if (the_locking_inset) {
// We are in inset locking mode.
/* LyX does a kind of work-area grabbing for insets.
Only a ButtonPress Event outside the inset will
force a InsetUnlock. */
the_locking_inset->
InsetButtonRelease(x, x, button);
return;
}
selection_possible = false;
if (text->cursor.par->table) {
int cell = text->
NumberOfCell(text->cursor.par,
text->cursor.pos);
if (text->cursor.par->table->IsContRow(cell) &&
text->cursor.par->table->
CellHasContRow(text->cursor.par->table->
GetCellAbove(cell))<0) {
text->CursorUp();
}
}
if (button >= 2) return;
SetState();
owner_->getMiniBuffer()->Set(CurrentState());
// Did we hit an editable inset?
if (inset_hit != 0) {
// Inset like error, notes and figures
selection_possible = false;
#ifdef WITH_WARNINGS
#warning fix this proper in 0.13
#endif
// Following a ref shouldn't issue
// a push on the undo-stack
// anylonger, now that we have
// keybindings for following
// references and returning from
// references. IMHO though, it
// should be the inset's own business
// to push or not push on the undo
// stack. They don't *have* to
// alter the document...
// (Joacim)
// ...or maybe the SetCursorParUndo()
// below isn't necessary at all anylonger?
if (inset_hit->LyxCode() == Inset::REF_CODE) {
text->SetCursorParUndo();
}
owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
inset_hit->Edit(x, y);
return;
}
// check whether we want to open a float
if (text) {
bool hit = false;
char c = ' ';
if (text->cursor.pos <
text->cursor.par->Last()) {
c = text->cursor.par->
GetChar(text->cursor.pos);
}
if (c == LyXParagraph::META_FOOTNOTE
|| c == LyXParagraph::META_MARGIN
|| c == LyXParagraph::META_FIG
|| c == LyXParagraph::META_TAB
|| c == LyXParagraph::META_WIDE_FIG
|| c == LyXParagraph::META_WIDE_TAB
|| c == LyXParagraph::META_ALGORITHM){
hit = true;
} else if (text->cursor.pos - 1 >= 0) {
c = text->cursor.par->
GetChar(text->cursor.pos - 1);
if (c == LyXParagraph::META_FOOTNOTE
|| c == LyXParagraph::META_MARGIN
|| c == LyXParagraph::META_FIG
|| c == LyXParagraph::META_TAB
|| c == LyXParagraph::META_WIDE_FIG
|| c == LyXParagraph::META_WIDE_TAB
|| c == LyXParagraph::META_ALGORITHM){
// We are one step too far to the right
text->CursorLeft();
hit = true;
}
}
if (hit == true) {
toggleFloat();
selection_possible = false;
return;
}
}
// Do we want to close a float? (click on the float-label)
if (text->cursor.row->par->footnoteflag ==
LyXParagraph::OPEN_FOOTNOTE
//&& text->cursor.pos == 0
&& text->cursor.row->previous &&
text->cursor.row->previous->par->
footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
LyXFont font (LyXFont::ALL_SANE);
font.setSize(LyXFont::SIZE_FOOTNOTE);
int box_x = 20; // LYX_PAPER_MARGIN;
box_x += font.textWidth(" wide-tab ", 10);
int screen_first = screen->first;
if (x < box_x
&& y + screen_first > text->cursor.y -
text->cursor.row->baseline
&& y + screen_first < text->cursor.y -
text->cursor.row->baseline
+ font.maxAscent() * 1.2 + font.maxDescent() * 1.2) {
toggleFloat();
selection_possible = false;
return;
}
}
// Maybe we want to edit a bibitem ale970302
#ifdef USE_PAINTER
if (text->cursor.par->bibkey && x < 20 +
bibitemMaxWidth(painter(),
textclasslist
.TextClass(buffer_->
params.textclass).defaultfont())) {
text->cursor.par->bibkey->Edit(0, 0);
}
#else
if (text->cursor.par->bibkey && x < 20 +
bibitemMaxWidth(textclasslist
.TextClass(buffer_->
params.textclass).defaultfont())) {
text->cursor.par->bibkey->Edit(0, 0);
}
#endif
return;
}
#else
int BufferView::WorkAreaButtonRelease(FL_OBJECT * ob, Window ,
int /*w*/, int /*h*/,
XEvent * ev, void * /*d*/)
{
if (buffer_ == 0 || screen == 0) return 0;
int const x = ev->xbutton.x - ob->x;
int const y = ev->xbutton.y - ob->y;
// If we hit an inset, we have the inset coordinates in these
// and inset_hit points to the inset. If we do not hit an
// inset, inset_hit is 0, and inset_x == x, inset_y == y.
int inset_x = x;
int inset_y = y;
Inset * inset_hit = checkInsetHit(inset_x, inset_y);
if (the_locking_inset) {
// We are in inset locking mode.
/* LyX does a kind of work-area grabbing for insets.
Only a ButtonPress Event outside the inset will
force a InsetUnlock. */
the_locking_inset->
InsetButtonRelease(inset_x, inset_y,
ev->xbutton.button);
return 0;
}
selection_possible = false;
if (text->cursor.par->table) {
int cell = text->
NumberOfCell(text->cursor.par,
text->cursor.pos);
if (text->cursor.par->table->IsContRow(cell) &&
text->cursor.par->table->
CellHasContRow(text->cursor.par->table->
GetCellAbove(cell))<0) {
text->CursorUp();
}
}
if (ev->xbutton.button >= 2)
return 0;
// Make sure that the press was not far from the release
if ((abs(last_click_x - x) >= 5) ||
(abs(last_click_y - y) >= 5)) {
return 0;
}
SetState();
owner_->getMiniBuffer()->Set(CurrentState());
// Did we hit an editable inset?
if (inset_hit != 0) {
// Inset like error, notes and figures
selection_possible = false;
#ifdef WITH_WARNINGS
#warning fix this proper in 0.13
#endif
// Following a ref shouldn't issue
// a push on the undo-stack
// anylonger, now that we have
// keybindings for following
// references and returning from
// references. IMHO though, it
// should be the inset's own business
// to push or not push on the undo
// stack. They don't *have* to
// alter the document...
// (Joacim)
// ...or maybe the SetCursorParUndo()
// below isn't necessary at all anylonger?
if (inset_hit->LyxCode() == Inset::REF_CODE) {
text->SetCursorParUndo();
}
owner_->getMiniBuffer()->Set(inset_hit->EditMessage());
inset_hit->Edit(inset_x, inset_y);
return 0;
}
// check whether we want to open a float
if (text) {
bool hit = false;
char c = ' ';
if (text->cursor.pos <
text->cursor.par->Last()) {
c = text->cursor.par->
GetChar(text->cursor.pos);
}
if (c == LyXParagraph::META_FOOTNOTE
|| c == LyXParagraph::META_MARGIN
|| c == LyXParagraph::META_FIG
|| c == LyXParagraph::META_TAB
|| c == LyXParagraph::META_WIDE_FIG
|| c == LyXParagraph::META_WIDE_TAB
|| c == LyXParagraph::META_ALGORITHM){
hit = true;
} else if (text->cursor.pos - 1 >= 0) {
c = text->cursor.par->
GetChar(text->cursor.pos - 1);
if (c == LyXParagraph::META_FOOTNOTE
|| c == LyXParagraph::META_MARGIN
|| c == LyXParagraph::META_FIG
|| c == LyXParagraph::META_TAB
|| c == LyXParagraph::META_WIDE_FIG
|| c == LyXParagraph::META_WIDE_TAB
|| c == LyXParagraph::META_ALGORITHM){
// We are one step too far to the right
text->CursorLeft();
hit = true;
}
}
if (hit == true) {
toggleFloat();
selection_possible = false;
return 0;
}
}
// Do we want to close a float? (click on the float-label)
if (text->cursor.row->par->footnoteflag ==
LyXParagraph::OPEN_FOOTNOTE
//&& text->cursor.pos == 0
&& text->cursor.row->previous &&
text->cursor.row->previous->par->
footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
LyXFont font (LyXFont::ALL_SANE);
font.setSize(LyXFont::SIZE_FOOTNOTE);
int box_x = 20; // LYX_PAPER_MARGIN;
box_x += font.textWidth(" wide-tab ", 10);
int screen_first = screen->first;
if (x < box_x
&& y + screen_first > text->cursor.y -
text->cursor.row->baseline
&& y + screen_first < text->cursor.y -
text->cursor.row->baseline
+ font.maxAscent() * 1.2 + font.maxDescent() * 1.2) {
toggleFloat();
selection_possible = false;
return 0;
}
}
// Maybe we want to edit a bibitem ale970302
if (text->cursor.par->bibkey && x < 20 +
bibitemMaxWidth(textclasslist
.TextClass(buffer_->
params.textclass).defaultfont())) {
text->cursor.par->bibkey->Edit(0, 0);
}
return 0;
}
#endif
/*
* Returns an inset if inset was hit. 0 otherwise.
* If hit, the coordinates are changed relative to the inset.
* Otherwise coordinates are not changed, and false is returned.
*/
#ifdef USE_PAINTER
Inset * BufferView::checkInsetHit(int & x, int & y)
{
if (!getScreen())
return 0;
int y_tmp = y + getScreen()->first;
LyXCursor & cursor = text->cursor;
LyXDirection direction = text->real_current_font.getFontDirection();
if (cursor.pos < cursor.par->Last()
&& cursor.par->GetChar(cursor.pos) == LyXParagraph::META_INSET
&& cursor.par->GetInset(cursor.pos)
&& cursor.par->GetInset(cursor.pos)->Editable()) {
// Check whether the inset really was hit
Inset * tmpinset = cursor.par->GetInset(cursor.pos);
LyXFont font = text->GetFont(cursor.par, cursor.pos);
int start_x, end_x;
if (direction == LYX_DIR_LEFT_TO_RIGHT) {
start_x = cursor.x;
end_x = cursor.x + tmpinset->width(painter(), font);
} else {
start_x = cursor.x - tmpinset->width(painter(), font);
end_x = cursor.x;
}
if (x > start_x && x < end_x
&& y_tmp > cursor.y - tmpinset->ascent(painter(), font)
&& y_tmp < cursor.y + tmpinset->descent(painter(), font)) {
x = x - start_x;
// The origin of an inset is on the baseline
y = y_tmp - (cursor.y);
return tmpinset;
}
}
if (cursor.pos - 1 >= 0
&& cursor.par->GetChar(cursor.pos - 1) == LyXParagraph::META_INSET
&& cursor.par->GetInset(cursor.pos - 1)
&& cursor.par->GetInset(cursor.pos - 1)->Editable()) {
text->CursorLeft();
Inset * tmpinset = cursor.par->GetInset(cursor.pos);
LyXFont font = text->GetFont(cursor.par, cursor.pos);
int start_x, end_x;
if (direction == LYX_DIR_LEFT_TO_RIGHT) {
start_x = cursor.x;
end_x = cursor.x + tmpinset->width(painter(), font);
} else {
start_x = cursor.x - tmpinset->width(painter(), font);
end_x = cursor.x;
}
if (x > start_x && x < end_x
&& y_tmp > cursor.y - tmpinset->ascent(painter(), font)
&& y_tmp < cursor.y + tmpinset->descent(painter(), font)) {
x = x - start_x;
// The origin of an inset is on the baseline
y = y_tmp - (cursor.y);
return tmpinset;
} else {
text->CursorRight();
return 0;
}
}
return 0;
}
#else
Inset * BufferView::checkInsetHit(int & x, int & y)
{
if (!getScreen())
return 0;
int y_tmp = y + getScreen()->first;
LyXCursor & cursor = text->cursor;
LyXDirection direction = text->real_current_font.getFontDirection();
if (cursor.pos < cursor.par->Last()
&& cursor.par->GetChar(cursor.pos) == LyXParagraph::META_INSET
&& cursor.par->GetInset(cursor.pos)
&& cursor.par->GetInset(cursor.pos)->Editable()) {
// Check whether the inset really was hit
Inset * tmpinset = cursor.par->GetInset(cursor.pos);
LyXFont font = text->GetFont(cursor.par, cursor.pos);
int start_x, end_x;
if (direction == LYX_DIR_LEFT_TO_RIGHT) {
start_x = cursor.x;
end_x = cursor.x + tmpinset->Width(font);
} else {
start_x = cursor.x - tmpinset->Width(font);
end_x = cursor.x;
}
if (x > start_x && x < end_x
&& y_tmp > cursor.y - tmpinset->Ascent(font)
&& y_tmp < cursor.y + tmpinset->Descent(font)) {
x = x - start_x;
// The origin of an inset is on the baseline
y = y_tmp - (cursor.y);
return tmpinset;
}
}
if (cursor.pos - 1 >= 0
&& cursor.par->GetChar(cursor.pos - 1) == LyXParagraph::META_INSET
&& cursor.par->GetInset(cursor.pos - 1)
&& cursor.par->GetInset(cursor.pos - 1)->Editable()) {
text->CursorLeft();
Inset * tmpinset = cursor.par->GetInset(cursor.pos);
LyXFont font = text->GetFont(cursor.par, cursor.pos);
int start_x, end_x;
if (direction == LYX_DIR_LEFT_TO_RIGHT) {
start_x = cursor.x;
end_x = cursor.x + tmpinset->Width(font);
} else {
start_x = cursor.x - tmpinset->Width(font);
end_x = cursor.x;
}
if (x > start_x && x < end_x
&& y_tmp > cursor.y - tmpinset->Ascent(font)
&& y_tmp < cursor.y + tmpinset->Descent(font)) {
x = x - start_x;
// The origin of an inset is on the baseline
y = y_tmp - (cursor.y);
return tmpinset;
} else {
text->CursorRight();
return 0;
}
}
return 0;
}
#endif
#ifdef NEW_WA
void BufferView::workAreaExpose()
{
// this is a hack to ensure that we only call this through
// BufferView::redraw().
//if (!lgb_hack) {
// redraw();
//}
static int work_area_width = -1;
static int work_area_height = -1;
bool widthChange = workarea->workWidth() != work_area_width;
bool heightChange = workarea->height() != work_area_height;
// update from work area
work_area_width = workarea->workWidth();
work_area_height = workarea->height();
if (buffer_ != 0) {
if (widthChange) {
// All buffers need a resize
bufferlist.resize();
// Remove all texts from the textcache
// This is not _really_ what we want to do. What
// we really want to do is to delete in textcache
// that does not have a BufferView with matching
// width, but as long as we have only one BufferView
// deleting all gives the same result.
if (lyxerr.debugging())
textcache.show(lyxerr, "Expose delete all");
textcache.clear();
} else if (heightChange) {
// Rebuild image of current screen
updateScreen();
// fitCursor() ensures we don't jump back
// to the start of the document on vertical
// resize
fitCursor();
// The main window size has changed, repaint most stuff
redraw();
// ...including the minibuffer
owner_->getMiniBuffer()->Init();
} else if (screen) screen->Redraw();
} else {
// Grey box when we don't have a buffer
workarea->greyOut();
}
// always make sure that the scrollbar is sane.
updateScrollbar();
owner_->updateLayoutChoice();
return;
}
#else
int BufferView::workAreaExpose()
{
if (!work_area || !work_area->form->visible)
return 1;
// this is a hack to ensure that we only call this through
// BufferView::redraw().
if (!lgb_hack) {
redraw();
}
static int work_area_width = work_area->w;
static int work_area_height = work_area->h;
bool widthChange = work_area->w != work_area_width;
bool heightChange = work_area->h != work_area_height;
// update from work area
work_area_width = work_area->w;
work_area_height = work_area->h;
if (buffer_ != 0) {
if (widthChange) {
// All buffers need a resize
bufferlist.resize();
// Remove all texts from the textcache
// This is not _really_ what we want to do. What
// we really want to do is to delete in textcache
// that does not have a BufferView with matching
// width, but as long as we have only one BufferView
// deleting all gives the same result.
if (lyxerr.debugging())
textcache.show(lyxerr, "Expose delete all");
textcache.clear();
} else if (heightChange) {
// Rebuild image of current screen
updateScreen();
// fitCursor() ensures we don't jump back
// to the start of the document on vertical
// resize
fitCursor();
// The main window size has changed, repaint most stuff
redraw();
// ...including the minibuffer
owner_->getMiniBuffer()->Init();
} else if (screen) screen->Redraw();
} else {
// Grey box when we don't have a buffer
fl_winset(FL_ObjWin(work_area));
fl_rectangle(1, work_area->x, work_area->y,
work_area->w, work_area->h, FL_GRAY63);
}
// always make sure that the scrollbar is sane.
updateScrollbar();
owner_->updateLayoutChoice();
return 1;
}
#endif
// Callback for cursor timer
void BufferView::CursorToggleCB(FL_OBJECT * ob, long)
{
BufferView * view = static_cast<BufferView*>(ob->u_vdata);
// Quite a nice place for asyncron Inset updating, isn't it?
// Actually no! This is run even if no buffer exist... so (Lgb)
if (view && !view->buffer_) {
goto set_timer_and_return;
}
//<2F>NOTE:
// On my quest to solve the gs render hangups I am now
// disabling the SIGHUP completely, and will do a wait
// now and then instead. If the guess that xforms somehow
// destroys something is true, this is likely (hopefully)
// to solve the problem...at least I hope so. Lgb
// ...Ok this seems to work...at least it does not make things
// worse so far. However I still see gs processes that hangs.
// I would really like to know _why_ they are hanging. Anyway
// the solution without the SIGCHLD handler seems to be easier
// to debug.
// When attaching gdb to a a running gs that hangs it shows
// that it is waiting for input(?) Is it possible for us to
// provide that input somehow? Or figure what it is expecing
// to read?
// One solution is to, after some time, look if there are some
// old gs processes still running and if there are: kill them
// and re render.
// Another solution is to provide the user an option to rerender
// a picture. This would, for the picture in question, check if
// there is a gs running for it, if so kill it, and start a new
// rendering process.
// these comments posted to lyx@via
{
int status = 1;
int pid = waitpid(static_cast<pid_t>(0), &status, WNOHANG);
if (pid == -1) // error find out what is wrong
; // ignore it for now.
else if (pid > 0)
sigchldhandler(pid, &status);
}
if (InsetUpdateList)
UpdateInsetUpdateList();
if (view && !view->screen){
goto set_timer_and_return;
}
if (view->lyx_focus && view->work_area_focus) {
if (!view->the_locking_inset) {
view->screen->CursorToggle();
} else {
view->the_locking_inset->
ToggleInsetCursor();
}
goto set_timer_and_return;
} else {
// Make sure that the cursor is visible.
if (!view->the_locking_inset) {
view->screen->ShowCursor();
} else {
if (!view->the_locking_inset->isCursorVisible())
view->the_locking_inset->
ToggleInsetCursor();
}
// This is only run when work_area_focus or lyx_focus is false.
Window tmpwin;
int tmp;
XGetInputFocus(fl_display, &tmpwin, &tmp);
// Commenting this out, we have not had problems with this
// for a long time. We will probably work on this code later
// and we can reenable this debug code then. Now it only
// anoying when debugging. (Lgb)
//if (lyxerr.debugging(Debug::INFO)) {
// lyxerr << "tmpwin: " << tmpwin
// << "\nwindow: " << view->owner_->getForm()->window
// << "\nwork_area_focus: " << view->work_area_focus
// << "\nlyx_focus : " << view->lyx_focus
// << endl;
//}
if (tmpwin != view->owner_->getForm()->window) {
view->lyx_focus = false;
goto skip_timer;
} else {
view->lyx_focus = true;
if (!view->work_area_focus)
goto skip_timer;
else
goto set_timer_and_return;
}
}
set_timer_and_return:
fl_set_timer(ob, 0.4);
skip_timer:
return;
}
#ifdef NEW_WA
static
string fromClipboard(Window win, XEvent * event)
{
string strret;
if (event->xselection.type == XA_STRING
&& event->xselection.property) {
Atom tmpatom;
unsigned long ul1;
unsigned long ul2;
unsigned char * uc = 0;
int tmpint;
if (XGetWindowProperty(
event->xselection.display, // display
win, // w
event->xselection.property, // property
0, // long_offset
0, // logn_length
False, // delete
XA_STRING, // req_type
&tmpatom, // actual_type_return
&tmpint, // actual_format_return
&ul1,
&ul2,
&uc // prop_return
) != Success) {
return strret;
}
if (uc) {
free(uc);
uc = 0;
}
if (XGetWindowProperty(
event->xselection.display, // display
win, // w
event->xselection.property, // property
0, // long_offset
ul2/4+1, // long_length
True, // delete
XA_STRING, // req_type
&tmpatom, // actual_type_return
&tmpint, // actual_format_return
&ul1, // nitems_return
&ul2, // bytes_after_return
&uc // prop_return */
) != Success) {
return strret;
}
if (uc) {
strret = reinterpret_cast<char*>(uc);
free(uc); // yes free!
uc = 0;
}
}
return strret;
}
void BufferView::WorkAreaSelectionNotify(Window win, XEvent * event)
{
if (buffer_ == 0) return;
screen->HideCursor();
beforeChange();
string clb = fromClipboard(win, event);
if (!clb.empty()) {
if (!ascii_type)
text->InsertStringA(clb.c_str());
else
text->InsertStringB(clb.c_str());
update(1);
}
}
#else
int BufferView::WorkAreaSelectionNotify(FL_OBJECT *, Window win,
int /*w*/, int /*h*/,
XEvent * event, void */*d*/)
{
if (buffer_ == 0) return 0;
if (event->type != SelectionNotify)
return 0;
Atom tmpatom;
unsigned long ul1;
unsigned long ul2;
unsigned char * uc = 0;
int tmpint;
screen->HideCursor();
beforeChange();
if (event->xselection.type == XA_STRING
&& event->xselection.property) {
if (XGetWindowProperty(
fl_display /* display */,
win /* w */,
event->xselection.property /* property */,
0 /* long_offset */,
0 /* long_length */,
false /* delete */,
XA_STRING /* req_type */,
&tmpatom /* actual_type_return */,
&tmpint /* actual_format_return */,
&ul1 /* nitems_return */,
&ul2 /* bytes_after_return */,
&uc /* prop_return */
) != Success) {
return 0;
}
XFlush(fl_display);
if (uc) {
free(uc);
uc = 0;
}
if (XGetWindowProperty(
fl_display /* display */,
win /* w */,
event->xselection.property /* property */,
0 /* long_offset */,
ul2/4+1 /* long_length */,
True /* delete */,
XA_STRING /* req_type */,
&tmpatom /* actual_type_return */,
&tmpint /* actual_format_return */,
&ul1 /* nitems_return */,
&ul2 /* bytes_after_return */,
&uc /* prop_return */
) != Success) {
return 0;
}
XFlush(fl_display);
if (uc) {
if (!ascii_type) {
text->InsertStringA(reinterpret_cast<char*>(uc));
} else {
text->InsertStringB(reinterpret_cast<char*>(uc));
}
free(uc);
uc = 0;
}
update(1);
}
return 0;
}
#endif
#ifdef NEW_WA
void BufferView::cursorPrevious()
{
if (!text->cursor.row->previous) return;
long y = getScreen()->first;
Row * cursorrow = text->cursor.row;
text->SetCursorFromCoordinates(text->cursor.x_fix, y);
text->FinishUndo();
// This is to allow jumping over large insets
if ((cursorrow == text->cursor.row))
text->CursorUp();
if (text->cursor.row->height < workarea->height())
getScreen()->Draw(text->cursor.y
- text->cursor.row->baseline
+ text->cursor.row->height
- workarea->height() + 1 );
}
#else
void BufferView::cursorPrevious()
{
if (!text->cursor.row->previous) return;
long y = getScreen()->first;
Row * cursorrow = text->cursor.row;
text->SetCursorFromCoordinates(text->cursor.x_fix, y);
text->FinishUndo();
// This is to allow jumping over large insets
if ((cursorrow == text->cursor.row))
text->CursorUp();
if (text->cursor.row->height < work_area->h)
getScreen()->Draw(text->cursor.y
- text->cursor.row->baseline
+ text->cursor.row->height
- work_area->h +1 );
}
#endif
#ifdef NEW_WA
void BufferView::cursorNext()
{
if (!text->cursor.row->next) return;
long y = getScreen()->first;
text->GetRowNearY(y);
Row * cursorrow = text->cursor.row;
text->SetCursorFromCoordinates(text->cursor.x_fix, y
+ workarea->height());
text->FinishUndo();
// This is to allow jumping over large insets
if ((cursorrow == text->cursor.row))
text->CursorDown();
if (text->cursor.row->height < workarea->height())
getScreen()->Draw(text->cursor.y
- text->cursor.row->baseline);
}
#else
void BufferView::cursorNext()
{
if (!text->cursor.row->next) return;
long y = getScreen()->first;
text->GetRowNearY(y);
Row * cursorrow = text->cursor.row;
text->SetCursorFromCoordinates(text->cursor.x_fix, y + work_area->h);
text->FinishUndo();
// This is to allow jumping over large insets
if ((cursorrow == text->cursor.row))
text->CursorDown();
if (text->cursor.row->height < work_area->h)
getScreen()->Draw(text->cursor.y
- text->cursor.row->baseline);
}
#endif
bool BufferView::available() const
{
if (buffer_ && text) return true;
return false;
}
void BufferView::beforeChange()
{
getScreen()->ToggleSelection();
text->ClearSelection();
FreeUpdateTimer();
}
void BufferView::savePosition()
{
backstack.push(buffer()->fileName(),
text->cursor.x,
text->cursor.y);
}
void BufferView::restorePosition()
{
if (backstack.empty()) return;
int x, y;
string fname = backstack.pop(&x, &y);
beforeChange();
Buffer * b = bufferlist.exists(fname) ?
bufferlist.getBuffer(fname) :
bufferlist.loadLyXFile(fname); // don't ask, just load it
buffer(b);
text->SetCursorFromCoordinates(x, y);
update(0);
}
void BufferView::update(signed char f)
{
owner()->updateLayoutChoice();
if (!text->selection && f > -3)
text->sel_cursor = text->cursor;
FreeUpdateTimer();
text->FullRebreak();
update();
if (f != 3 && f != -3) {
fitCursor();
updateScrollbar();
}
if (f == 1 || f == -1) {
if (buffer()->isLyxClean()) {
buffer()->markDirty();
owner()->getMiniBuffer()->setTimer(4);
} else {
buffer()->markDirty();
}
}
}
void BufferView::smallUpdate(signed char f)
{
getScreen()->SmallUpdate();
if (getScreen()->TopCursorVisible()
!= getScreen()->first) {
update(f);
return;
}
fitCursor();
updateScrollbar();
if (!text->selection)
text->sel_cursor = text->cursor;
if (f == 1 || f == -1) {
if (buffer()->isLyxClean()) {
buffer()->markDirty();
owner()->getMiniBuffer()->setTimer(4);
} else {
buffer()->markDirty();
}
}
}
void BufferView::SetState()
{
if (!lyxrc->rtl_support)
return;
if (text->real_current_font.getFontDirection()
== LYX_DIR_LEFT_TO_RIGHT) {
if (!owner_->getIntl()->primarykeymap)
owner_->getIntl()->KeyMapPrim();
} else {
if (owner_->getIntl()->primarykeymap)
owner_->getIntl()->KeyMapSec();
}
}
void BufferView::insetSleep()
{
if (the_locking_inset && !inset_slept) {
the_locking_inset->GetCursorPos(slx, sly);
the_locking_inset->InsetUnlock();
inset_slept = true;
}
}
void BufferView::insetWakeup()
{
if (the_locking_inset && inset_slept) {
the_locking_inset->Edit(slx, sly);
inset_slept = false;
}
}
void BufferView::insetUnlock()
{
if (the_locking_inset) {
if (!inset_slept) the_locking_inset->InsetUnlock();
the_locking_inset = 0;
text->FinishUndo();
inset_slept = false;
}
}
bool BufferView::focus() const
{
return workarea->hasFocus();
}
void BufferView::focus(bool f)
{
if (f) workarea->setFocus();
}
bool BufferView::active() const
{
return workarea->active();
}
Reference in New Issue View Git Blame Copy Permalink