/**
* \file XWorkArea.C
- * Copyright 1995-2002 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
* \author unknown
- * \author John Levon <moz@compsoc.man.ac.uk>
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS
*/
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
#include "XWorkArea.h"
#include "debug.h"
-#include "LyXView.h"
#include "XLyXKeySym.h"
-#include "ColorHandler.h"
-
-#if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
-#include "lyxlookup.h"
-#endif
-
-#include "support/filetools.h" // LibFileSearch
-#include "support/lstrings.h"
-#include "support/LAssert.h"
-
-#include <cmath>
-#include <cctype>
-
-// xforms doesn't define this (but it should be in <forms.h>).
-extern "C"
-FL_APPEVENT_CB fl_set_preemptive_callback(Window, FL_APPEVENT_CB, void *);
+#include "funcrequest.h"
+#include "Timeout.h"
using std::endl;
using std::abs;
using std::hex;
+using std::dec;
namespace {
inline
-void waitForX()
+void waitForX(bool discard)
{
- XSync(fl_get_display(), 0);
-}
-
-
-void setXtermCursor(Window win)
-{
- static Cursor cursor;
- static bool cursor_undefined = true;
- if (cursor_undefined) {
- cursor = XCreateFontCursor(fl_get_display(), XC_xterm);
- XFlush(fl_get_display());
- cursor_undefined = false;
- }
- XDefineCursor(fl_get_display(), win, cursor);
- XFlush(fl_get_display());
+ XSync(fl_get_display(), discard);
}
{
mouse_button::state b = mouse_button::none;
switch (button) {
- case Button1:
- b = mouse_button::button1;
- break;
- case Button2:
- b = mouse_button::button2;
- break;
- case Button3:
- b = mouse_button::button3;
- break;
- case Button4:
- b = mouse_button::button4;
- break;
- case Button5:
- b = mouse_button::button5;
- break;
- default: // FIXME
- break;
+ case FL_MBUTTON1:
+ b = mouse_button::button1;
+ break;
+ case FL_MBUTTON2:
+ b = mouse_button::button2;
+ break;
+ case FL_MBUTTON3:
+ b = mouse_button::button3;
+ break;
+ case FL_MBUTTON4:
+ b = mouse_button::button4;
+ break;
+ case FL_MBUTTON5:
+ b = mouse_button::button5;
+ break;
}
return b;
}
-mouse_button::state x_motion_state(unsigned int state)
-{
- mouse_button::state b = mouse_button::none;
- if (state & Button1MotionMask)
- b |= mouse_button::button1;
- if (state & Button2MotionMask)
- b |= mouse_button::button2;
- if (state & Button3MotionMask)
- b |= mouse_button::button3;
- if (state & Button4MotionMask)
- b |= mouse_button::button4;
- if (state & Button5MotionMask)
- b |= mouse_button::button5;
- return b;
-}
-
-
key_modifier::state x_key_state(unsigned int state)
{
key_modifier::state k = key_modifier::none;
}
-} // anon namespace
+extern "C" {
+void C_scroll_cb(FL_OBJECT * ob, long)
+{
+ XWorkArea * area = static_cast<XWorkArea *>(ob->u_vdata);
+ area->scroll_cb();
+}
-extern "C" {
- // Just a bunch of C wrappers around static members of XWorkArea
- static
- void C_XWorkArea_scroll_cb(FL_OBJECT * ob, long)
- {
- XWorkArea * area = static_cast<XWorkArea*>(ob->u_vdata);
- area->scroll_cb();
- }
+int C_work_area_handler(FL_OBJECT * ob, int event, FL_Coord, FL_Coord,
+ int key, void * xev)
+{
+ return XWorkArea::work_area_handler(ob, event, 0, 0, key, xev);
+}
- static
- int C_XWorkArea_work_area_handler(FL_OBJECT * ob, int event,
- FL_Coord, FL_Coord,
- int key, void * xev)
- {
- return XWorkArea::work_area_handler(ob, event,
- 0, 0, key, xev);
- }
- static
- int C_XWorkAreaEventCB(FL_FORM * form, void * xev) {
- XWorkArea * wa = static_cast<XWorkArea*>(form->u_vdata);
- return wa->event_cb(static_cast<XEvent*>(xev));
- }
+int C_event_cb(FL_FORM * form, void * xev)
+{
+ XWorkArea * area = static_cast<XWorkArea *>(form->u_vdata);
+ return area->event_cb(static_cast<XEvent *>(xev));
}
+} // extern "C"
+} // namespace anon
+
XWorkArea::XWorkArea(int x, int y, int w, int h)
: workareapixmap(0), painter_(*this)
{
+ if (lyxerr.debugging(Debug::WORKAREA)) {
+ lyxerr << "\tbackground box: +"
+ << x << '+' << y << ' '
+ << w - 15 << 'x' << h << endl;
+ }
+
fl_freeze_all_forms();
FL_OBJECT * obj;
- if (lyxerr.debugging(Debug::WORKAREA))
- lyxerr << "\tbackground box: +"
- << x << '+' << y << ' '
- << w - 15 << 'x' << h << endl;
- backgroundbox = obj = fl_add_box(FL_BORDER_BOX,
- x, y,
- w - 15,
- h, "");
+ obj = fl_add_box(FL_BORDER_BOX, x, y, w - 15, h, "");
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
scrollbar = obj = fl_add_scrollbar(FL_VERT_SCROLLBAR,
- x + w - 15,
- y, 17, h, "");
+ x + w - 15, y, 17, h, "");
fl_set_object_boxtype(obj, FL_UP_BOX);
fl_set_object_resize(obj, FL_RESIZE_ALL);
fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
obj->u_vdata = this;
- fl_set_object_callback(obj, C_XWorkArea_scroll_cb, 0);
+ fl_set_object_callback(obj, C_scroll_cb, 0);
fl_set_scrollbar_bounds(scrollbar, 0.0, 0.0);
fl_set_scrollbar_value(scrollbar, 0.0);
fl_set_scrollbar_size(scrollbar, scrollbar->h);
x + bw, y + bw,
w - 15 - 2 * bw,
h - 2 * bw, "",
- C_XWorkArea_work_area_handler);
+ C_work_area_handler);
obj->wantkey = FL_KEY_ALL;
obj->u_vdata = this;
/// X selection hook - xforms gets it wrong
fl_current_form->u_vdata = this;
- fl_register_raw_callback(fl_current_form, FL_ALL_EVENT, C_XWorkAreaEventCB);
+ fl_register_raw_callback(fl_current_form, FL_ALL_EVENT, C_event_cb);
fl_unfreeze_all_forms();
val.function = GXcopy;
copy_gc = XCreateGC(fl_get_display(), RootWindow(fl_get_display(), 0),
- GCFunction, &val);
+ GCFunction, &val);
}
}
-namespace {
-void destroy_object(FL_OBJECT * obj)
-{
- if (!obj)
- return;
-
- if (obj->visible) {
- fl_hide_object(obj);
- }
- fl_delete_object(obj);
- fl_free_object(obj);
-}
-} // namespace anon
-
-
void XWorkArea::redraw(int width, int height)
{
static int cur_width = -1;
if (cur_width == width && cur_height == height && workareapixmap) {
XCopyArea(fl_get_display(),
- getPixmap(), getWin(), copy_gc,
- 0, 0, width, height, xpos(), ypos());
+ getPixmap(), getWin(), copy_gc,
+ 0, 0, width, height, xpos(), ypos());
return;
}
if (lyxerr.debugging(Debug::WORKAREA)) {
lyxerr << "(Re)creating pixmap ("
- << width << 'x' << height << ")" << endl;
+ << width << 'x' << height << ')' << endl;
}
if (workareapixmap) {
width,
height,
fl_get_visual_depth());
-
+
workAreaResize();
}
long const work_height = workHeight();
- lyxerr[Debug::GUI] << "scroll: height now " << height << endl;
- lyxerr[Debug::GUI] << "scroll: work_height " << work_height << endl;
+ if (lyxerr.debugging(Debug::GUI)) {
+ lyxerr << "scroll: height now " << height << '\n'
+ << "scroll: work_height " << work_height << endl;
+ }
/* If the text is smaller than the working area, the scrollbar
* maximum must be the working area height. No scrolling will
* be possible */
if (height <= work_height) {
- lyxerr[Debug::GUI] << "scroll: doc smaller than workarea !" << endl;
+ lyxerr[Debug::GUI] << "scroll: doc smaller than workarea !"
+ << endl;
fl_set_scrollbar_bounds(scrollbar, 0.0, 0.0);
fl_set_scrollbar_value(scrollbar, pos);
fl_set_scrollbar_size(scrollbar, scrollbar->h);
void XWorkArea::scroll_cb()
{
double const val = fl_get_scrollbar_value(scrollbar);
- lyxerr[Debug::GUI] << "scroll: val: " << val << endl;
- lyxerr[Debug::GUI] << "scroll: height: " << scrollbar->h << endl;
- lyxerr[Debug::GUI] << "scroll: docheight: " << doc_height_ << endl;
+
+ if (lyxerr.debugging(Debug::GUI)) {
+ lyxerr << "scroll: val: " << val << '\n'
+ << "scroll: height: " << scrollbar->h << '\n'
+ << "scroll: docheight: " << doc_height_ << endl;
+ }
+
scrollDocView(int(val));
- waitForX();
+ waitForX(false);
}
int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
- FL_Coord, FL_Coord ,
- int key, void * xev)
+ 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);
XWorkArea * area = static_cast<XWorkArea*>(ob->u_vdata);
switch (event) {
case FL_DRAW:
- if (!area->work_area ||
- !area->work_area->form->visible)
+ if (!area->work_area || !area->work_area->form->visible)
return 1;
lyxerr[Debug::WORKAREA] << "Workarea event: DRAW" << endl;
area->redraw(area->workWidth(), area->workHeight());
if (!ev || ev->xbutton.button == 0) break;
// Should really have used xbutton.state
lyxerr[Debug::WORKAREA] << "Workarea event: PUSH" << endl;
- area->workAreaButtonPress(ev->xbutton.x - ob->x,
- ev->xbutton.y - ob->y,
- x_button_state(ev->xbutton.button));
+ area->dispatch(
+ FuncRequest(LFUN_MOUSE_PRESS,
+ ev->xbutton.x - ob->x,
+ ev->xbutton.y - ob->y,
+ x_button_state(key)));
break;
case FL_RELEASE:
if (!ev || ev->xbutton.button == 0) break;
// Should really have used xbutton.state
lyxerr[Debug::WORKAREA] << "Workarea event: RELEASE" << endl;
- area->workAreaButtonRelease(ev->xbutton.x - ob->x,
- ev->xbutton.y - ob->y,
- x_button_state(ev->xbutton.button));
+ area->dispatch(
+ FuncRequest(LFUN_MOUSE_RELEASE,
+ ev->xbutton.x - ob->x,
+ ev->xbutton.y - ob->y,
+ x_button_state(key)));
break;
-#if FL_VERSION < 1 && FL_REVISION < 89
- case FL_MOUSE:
-#else
case FL_DRAG:
-#endif
- if (!ev || ! area->scrollbar) break;
- if (ev->xmotion.x != x_old ||
- ev->xmotion.y != y_old ||
- fl_get_scrollbar_value(area->scrollbar) != scrollbar_value_old
- ) {
- lyxerr[Debug::WORKAREA] << "Workarea event: MOUSE" << endl;
- area->workAreaMotionNotify(ev->xmotion.x - ob->x,
- ev->xmotion.y - ob->y,
- x_motion_state(ev->xbutton.state));
+ {
+ if (!ev || !area->scrollbar)
+ break;
+
+ int const drag_x = ev->xmotion.x;
+ int const drag_y = ev->xmotion.y;
+ int const area_y = ob->y;
+ int const area_h = ob->h;
+
+ // Check if the mouse is above or below the workarea
+ if (drag_y <= area_y || drag_y >= area_y + area_h) {
+ // The mouse button is depressed and we are outside the
+ // workarea. That means we are simultaneously selecting
+ // text and scrolling the view.
+ // Use a Timeout to react to a drag events only every
+ // 200ms. All intervening events are discarded,
+ // allowing the user to control position easily.
+ static int const discard_interval = 200;
+ static Timeout timeout(discard_interval);
+
+ if (timeout.running())
+ break;
+ // The timeout is not running, so process the
+ // event, first starting the timeout to discard future
+ // events.
+ timeout.start();
+ }
+
+ static int x_old = -1;
+ static int y_old = -1;
+ static double scrollbar_value_old = -1.0;
+
+ double const scrollbar_value =
+ fl_get_scrollbar_value(area->scrollbar);
+
+ if (drag_x != x_old || drag_y != y_old ||
+ scrollbar_value != scrollbar_value_old) {
+ x_old = drag_x;
+ y_old = drag_y;
+ scrollbar_value_old = scrollbar_value;
+
+ lyxerr[Debug::WORKAREA] << "Workarea event: DRAG"
+ << endl;
+
+ // It transpires that ev->xbutton.button == 0 when
+ // the mouse is dragged, so it cannot be used to
+ // initialise x_button_state and hence FuncRequest.
+
+ // The 'key' that is passed into the function does
+ // contain the necessary info, however.
+
+ // It is for this reason that x_button_state has
+ // been modified to work with key
+ // rather than ev->xbutton.button.
+
+ // Angus 15 Oct 2002.
+ FuncRequest cmd(LFUN_MOUSE_MOTION,
+ ev->xbutton.x - ob->x,
+ ev->xbutton.y - ob->y,
+ x_button_state(key));
+ area->dispatch(cmd);
}
break;
-#if FL_VERSION < 1 && FL_REVISION < 89
- case FL_KEYBOARD:
-#else
+ }
+
case FL_KEYPRESS:
-#endif
{
- lyxerr[Debug::WORKAREA] << "Workarea event: KEYBOARD" << endl;
+ lyxerr[Debug::WORKAREA] << "Workarea event: KEYPRESS" << endl;
KeySym keysym = 0;
char dummy[1];
XKeyEvent * xke = reinterpret_cast<XKeyEvent *>(ev);
-#if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
- // XForms < 0.89.5 does not have compose support
- // so we are using our own compose support
- LyXLookupString(ev, dummy, 1, &keysym);
-#else
XLookupString(xke, dummy, 1, &keysym, 0);
-// int num_keys = XLookupString(xke, dummy, 10, &keysym, &xcs);
-// lyxerr << "We have " << num_keys << " keys in the returned buffer" << endl;
-// lyxerr << "Our dummy string is " << dummy << endl;
-#endif
if (lyxerr.debugging(Debug::KEY)) {
- char const * tmp = XKeysymToString(key);
- char const * tmp2 = XKeysymToString(keysym);
- string const stm = (tmp ? tmp : "");
- string const stm2 = (tmp2 ? tmp2 : "");
-
- lyxerr[Debug::KEY] << "XWorkArea: Key is `" << stm << "' ["
- << key << "]" << endl;
- lyxerr[Debug::KEY] << "XWorkArea: Keysym is `" << stm2 << "' ["
- << keysym << "]" << endl;
+ char const * const tmp = XKeysymToString(key);
+ char const * const tmp2 = XKeysymToString(keysym);
+ string const stm = (tmp ? tmp : string());
+ string const stm2 = (tmp2 ? tmp2 : string());
+
+ lyxerr << "XWorkArea: Key is `" << stm
+ << "' [" << key << "]\n"
+ << "XWorkArea: Keysym is `" << stm2
+ << "' [" << keysym << ']' << endl;
}
-#if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
- if (keysym == NoSymbol) {
- lyxerr[Debug::KEY]
- << "Empty kdb action (probably composing)"
- << endl;
- break;
- }
- KeySym ret_key = keysym;
-#else
// Note that we need this handling because of a bug
// in XForms 0.89, if this bug is resolved in the way I hope
- // we can just use the keysym directly with out looking
+ // we can just use the keysym directly without looking
// at key at all. (Lgb)
KeySym ret_key = 0;
if (!key) {
- // We migth have to add more keysyms here also,
+ // We might have to add more keysyms here also,
// we will do that as the issues arise. (Lgb)
if (keysym == XK_space) {
ret_key = keysym;
// << static_cast<unsigned char>(key)
// << endl;
//} else {
- ret_key = (keysym ? keysym : key);
- lyxerr[Debug::KEY] << "Using keysym [B]"
- << endl;
+ ret_key = (keysym ? keysym : key);
+ lyxerr[Debug::KEY] << "Using keysym [B]"
+ << endl;
//}
}
-#endif
unsigned int const ret_state = xke->state;
// If you have a better way to handle "wild-output" of
// << XEventsQueued(fl_get_display(), QueuedAlready)
// << endl;
if (XEventsQueued(fl_get_display(), QueuedAlready) > 0)
- XSync(fl_get_display(), 1);
- // This purge make f.ex. scrolling stop immidiatly when
+ waitForX(true);
+ // This purge make f.ex. scrolling stop immediately when
// releasing the PageDown button. The question is if
// this purging of XEvents can cause any harm...
// after some testing I can see no problems, but
}
break;
-#if FL_VERSION > 0 || FL_REVISION >= 89
case FL_KEYRELEASE:
lyxerr[Debug::WORKAREA] << "Workarea event: KEYRELEASE" << endl;
break;
-#endif
case FL_ENTER:
lyxerr[Debug::WORKAREA] << "Workarea event: ENTER" << endl;
+ fl_set_cursor(FL_ObjWin(area->work_area), XC_xterm);
break;
case FL_LEAVE:
lyxerr[Debug::WORKAREA] << "Workarea event: LEAVE" << endl;
+ // There should be no need for this. But there is.
+ fl_set_cursor(FL_ObjWin(area->work_area), FL_DEFAULT_CURSOR);
break;
case FL_DBLCLICK:
- if (!ev) break;
- lyxerr[Debug::WORKAREA] << "Workarea event: DBLCLICK" << endl;
- area->workAreaDoubleClick(ev->xbutton.x - ob->x,
- ev->xbutton.y - ob->y,
- x_button_state(ev->xbutton.button));
+ if (ev) {
+ lyxerr[Debug::WORKAREA] << "Workarea event: DBLCLICK" << endl;
+ FuncRequest cmd(LFUN_MOUSE_DOUBLE,
+ ev->xbutton.x - ob->x,
+ ev->xbutton.y - ob->y,
+ x_button_state(key));
+ area->dispatch(cmd);
+ }
break;
case FL_TRPLCLICK:
- if (!ev) break;
- lyxerr[Debug::WORKAREA] << "Workarea event: TRPLCLICK" << endl;
- area->workAreaTripleClick(ev->xbutton.x - ob->x,
- ev->xbutton.y - ob->y,
- x_button_state(ev->xbutton.button));
+ if (ev) {
+ lyxerr[Debug::WORKAREA] << "Workarea event: TRPLCLICK" << endl;
+ FuncRequest cmd(LFUN_MOUSE_TRIPLE,
+ ev->xbutton.x - ob->x,
+ ev->xbutton.y - ob->y,
+ x_button_state(key));
+ area->dispatch(cmd);
+ }
break;
case FL_OTHER:
- if (!ev) break;
- lyxerr[Debug::WORKAREA] << "Workarea event: OTHER" << endl;
+ if (ev)
+ lyxerr[Debug::WORKAREA] << "Workarea event: OTHER" << endl;
break;
}
extern "C" {
- static
- int request_clipboard_cb(FL_OBJECT * /*ob*/, long /*type*/,
- void const * data, long size)
- {
- clipboard_selection.erase();
-
- if (size > 0)
- clipboard_selection.reserve(size);
- for (int i = 0; i < size; ++i)
- clipboard_selection +=
- static_cast<char const *>(data)[i];
- clipboard_read = true;
- return 0;
- }
-
+int request_clipboard_cb(FL_OBJECT * /*ob*/, long /*type*/,
+ void const * data, long size)
+{
+ clipboard_selection.erase();
+
+ if (size > 0)
+ clipboard_selection.reserve(size);
+ for (int i = 0; i < size; ++i)
+ clipboard_selection += static_cast<char const *>(data)[i];
+ clipboard_read = true;
+ return 0;
}
+} // extern "C"
} // namespace anon
int XWorkArea::event_cb(XEvent * xev)
{
- int ret = 0;
switch (xev->type) {
- case SelectionRequest:
- lyxerr[Debug::GUI] << "X requested selection." << endl;
- selectionRequested();
- break;
- case SelectionClear:
- lyxerr[Debug::GUI] << "Lost selection." << endl;
- selectionLost();
- break;
+ case SelectionRequest:
+ lyxerr[Debug::GUI] << "X requested selection." << endl;
+ selectionRequested();
+ break;
+ case SelectionClear:
+ lyxerr[Debug::GUI] << "Lost selection." << endl;
+ selectionLost();
+ break;
}
- return ret;
+ return 0;
}
void XWorkArea::haveSelection(bool yes) const
{
- if (!yes) {
- XSetSelectionOwner(fl_get_display(), XA_PRIMARY, None, CurrentTime);
- return;
- }
-
- XSetSelectionOwner(fl_get_display(), XA_PRIMARY, FL_ObjWin(work_area), CurrentTime);
+ Window const owner = yes ? FL_ObjWin(work_area) : None;
+ XSetSelectionOwner(fl_get_display(), XA_PRIMARY, owner, CurrentTime);
}
while (!clipboard_read) {
if (fl_check_forms() == FL_EVENT) {
fl_XNextEvent(&ev);
- lyxerr << "Received unhandled X11 event" << endl;
- lyxerr << "Type: 0x" << hex << ev.xany.type <<
- " Target: 0x" << hex << ev.xany.window << endl;
+ lyxerr << "Received unhandled X11 event\n"
+ << "Type: 0x" << hex << ev.xany.type
+ << " Target: 0x" << hex << ev.xany.window
+ << dec << endl;
}
}
return clipboard_selection;
projects / lyx.git / blobdiff