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Clean up of XWorkArea.C, no change in functionality.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5779 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Angus Leeming
parent
8e87719c27
commit
89dd2a60b0
@ -1,3 +1,16 @@
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2002-12-04 Angus Leeming <leeming@lyx.org>
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* XWorkArea.h (backgroundbox): Removed. No need to name it explicitly.
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* XWorkArea.C (work_area_handler): move static vars inside loop,
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rename vars as discussed with Lars. Document changes in the text.
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Don't declare functions as static; use namespace anon.
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(setXtermCursor): removed; not used.
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(destroy_object): removed; not used.
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Remove unneeded header files ColorHandler.h, LyXView.h, filetools.h,
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lstrings.h, LAssert.h, cmath, cctype.
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Various other trivial clean-ups.
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2002-12-03 Juergen Spitzmueller <j.spitzmueller@gmx.de>
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* xforms_helpers.C: (updateWidgetsFromLength)
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@ -17,9 +17,7 @@
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#include "XWorkArea.h"
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#include "debug.h"
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#include "LyXView.h"
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#include "XLyXKeySym.h"
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#include "ColorHandler.h"
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#include "funcrequest.h"
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#include "Timeout.h"
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@ -27,17 +25,6 @@
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#include "lyxlookup.h"
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#endif
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#include "support/filetools.h" // LibFileSearch
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#include "support/lstrings.h"
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#include "support/LAssert.h"
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#include <cmath>
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#include <cctype>
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// xforms doesn't define this (but it should be in <forms.h>).
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extern "C"
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FL_APPEVENT_CB fl_set_preemptive_callback(Window, FL_APPEVENT_CB, void *);
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using std::endl;
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using std::abs;
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using std::hex;
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@ -46,23 +33,9 @@ using std::dec;
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namespace {
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inline
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void waitForX()
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void waitForX(bool discard)
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{
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XSync(fl_get_display(), 0);
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}
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void setXtermCursor(Window win)
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{
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static Cursor cursor;
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static bool cursor_undefined = true;
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if (cursor_undefined) {
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cursor = XCreateFontCursor(fl_get_display(), XC_xterm);
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XFlush(fl_get_display());
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cursor_undefined = false;
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}
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XDefineCursor(fl_get_display(), win, cursor);
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XFlush(fl_get_display());
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XSync(fl_get_display(), discard);
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}
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@ -85,8 +58,6 @@ mouse_button::state x_button_state(unsigned int button)
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case FL_MBUTTON5:
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b = mouse_button::button5;
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break;
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default: // FIXME
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break;
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}
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return b;
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}
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@ -105,62 +76,56 @@ key_modifier::state x_key_state(unsigned int state)
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}
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} // anon namespace
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extern "C" {
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// Just a bunch of C wrappers around static members of XWorkArea
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static
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void C_XWorkArea_scroll_cb(FL_OBJECT * ob, long)
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{
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XWorkArea * area = static_cast<XWorkArea*>(ob->u_vdata);
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area->scroll_cb();
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}
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static
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int C_XWorkArea_work_area_handler(FL_OBJECT * ob, int event,
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FL_Coord, FL_Coord,
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int key, void * xev)
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{
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return XWorkArea::work_area_handler(ob, event,
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0, 0, key, xev);
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}
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static
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int C_XWorkAreaEventCB(FL_FORM * form, void * xev) {
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XWorkArea * wa = static_cast<XWorkArea*>(form->u_vdata);
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return wa->event_cb(static_cast<XEvent*>(xev));
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}
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void C_scroll_cb(FL_OBJECT * ob, long)
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{
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XWorkArea * area = static_cast<XWorkArea *>(ob->u_vdata);
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area->scroll_cb();
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}
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int C_work_area_handler(FL_OBJECT * ob, int event, FL_Coord, FL_Coord,
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int key, void * xev)
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{
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return XWorkArea::work_area_handler(ob, event, 0, 0, key, xev);
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}
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int C_event_cb(FL_FORM * form, void * xev)
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{
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XWorkArea * area = static_cast<XWorkArea *>(form->u_vdata);
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return area->event_cb(static_cast<XEvent *>(xev));
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}
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} // extern "C"
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} // namespace anon
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XWorkArea::XWorkArea(int x, int y, int w, int h)
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: workareapixmap(0), painter_(*this)
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{
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if (lyxerr.debugging(Debug::WORKAREA)) {
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lyxerr << "\tbackground box: +"
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<< x << '+' << y << ' '
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<< w - 15 << 'x' << h << endl;
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}
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fl_freeze_all_forms();
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FL_OBJECT * obj;
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if (lyxerr.debugging(Debug::WORKAREA))
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lyxerr << "\tbackground box: +"
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<< x << '+' << y << ' '
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<< w - 15 << 'x' << h << endl;
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backgroundbox = obj = fl_add_box(FL_BORDER_BOX,
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x, y,
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w - 15,
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h, "");
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obj = fl_add_box(FL_BORDER_BOX, x, y, w - 15, h, "");
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
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scrollbar = obj = fl_add_scrollbar(FL_VERT_SCROLLBAR,
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x + w - 15,
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y, 17, h, "");
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x + w - 15, y, 17, h, "");
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fl_set_object_boxtype(obj, FL_UP_BOX);
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fl_set_object_resize(obj, FL_RESIZE_ALL);
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fl_set_object_gravity(obj, NorthEastGravity, SouthEastGravity);
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obj->u_vdata = this;
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fl_set_object_callback(obj, C_XWorkArea_scroll_cb, 0);
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fl_set_object_callback(obj, C_scroll_cb, 0);
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fl_set_scrollbar_bounds(scrollbar, 0.0, 0.0);
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fl_set_scrollbar_value(scrollbar, 0.0);
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fl_set_scrollbar_size(scrollbar, scrollbar->h);
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@ -183,7 +148,7 @@ XWorkArea::XWorkArea(int x, int y, int w, int h)
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x + bw, y + bw,
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w - 15 - 2 * bw,
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h - 2 * bw, "",
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C_XWorkArea_work_area_handler);
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C_work_area_handler);
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obj->wantkey = FL_KEY_ALL;
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obj->u_vdata = this;
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@ -193,7 +158,7 @@ XWorkArea::XWorkArea(int x, int y, int w, int h)
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/// X selection hook - xforms gets it wrong
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fl_current_form->u_vdata = this;
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fl_register_raw_callback(fl_current_form, FL_ALL_EVENT, C_XWorkAreaEventCB);
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fl_register_raw_callback(fl_current_form, FL_ALL_EVENT, C_event_cb);
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fl_unfreeze_all_forms();
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@ -201,7 +166,7 @@ XWorkArea::XWorkArea(int x, int y, int w, int h)
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val.function = GXcopy;
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copy_gc = XCreateGC(fl_get_display(), RootWindow(fl_get_display(), 0),
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GCFunction, &val);
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GCFunction, &val);
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}
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@ -213,21 +178,6 @@ XWorkArea::~XWorkArea()
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}
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namespace {
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void destroy_object(FL_OBJECT * obj)
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{
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if (!obj)
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return;
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if (obj->visible) {
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fl_hide_object(obj);
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}
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fl_delete_object(obj);
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fl_free_object(obj);
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}
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} // namespace anon
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void XWorkArea::redraw(int width, int height)
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{
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static int cur_width = -1;
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@ -235,8 +185,8 @@ void XWorkArea::redraw(int width, int height)
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if (cur_width == width && cur_height == height && workareapixmap) {
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XCopyArea(fl_get_display(),
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getPixmap(), getWin(), copy_gc,
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0, 0, width, height, xpos(), ypos());
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getPixmap(), getWin(), copy_gc,
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0, 0, width, height, xpos(), ypos());
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return;
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}
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@ -275,14 +225,17 @@ void XWorkArea::setScrollbarParams(int height, int pos, int line_height)
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long const work_height = workHeight();
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lyxerr[Debug::GUI] << "scroll: height now " << height << endl;
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lyxerr[Debug::GUI] << "scroll: work_height " << work_height << endl;
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if (lyxerr.debugging(Debug::GUI)) {
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lyxerr << "scroll: height now " << height << '\n'
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<< "scroll: work_height " << work_height << endl;
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}
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/* If the text is smaller than the working area, the scrollbar
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* maximum must be the working area height. No scrolling will
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* be possible */
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if (height <= work_height) {
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lyxerr[Debug::GUI] << "scroll: doc smaller than workarea !" << endl;
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lyxerr[Debug::GUI] << "scroll: doc smaller than workarea !"
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<< endl;
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fl_set_scrollbar_bounds(scrollbar, 0.0, 0.0);
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fl_set_scrollbar_value(scrollbar, pos);
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fl_set_scrollbar_size(scrollbar, scrollbar->h);
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@ -305,24 +258,22 @@ void XWorkArea::setScrollbarParams(int height, int pos, int line_height)
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void XWorkArea::scroll_cb()
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{
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double const val = fl_get_scrollbar_value(scrollbar);
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lyxerr[Debug::GUI] << "scroll: val: " << val << endl;
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lyxerr[Debug::GUI] << "scroll: height: " << scrollbar->h << endl;
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lyxerr[Debug::GUI] << "scroll: docheight: " << doc_height_ << endl;
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if (lyxerr.debugging(Debug::GUI)) {
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lyxerr << "scroll: val: " << val << '\n'
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<< "scroll: height: " << scrollbar->h << '\n'
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<< "scroll: docheight: " << doc_height_ << endl;
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}
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scrollDocView(int(val));
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waitForX();
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waitForX(false);
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}
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int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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FL_Coord, FL_Coord,
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int key, void * xev)
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FL_Coord, FL_Coord,
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int key, void * xev)
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{
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static int x_old = -1;
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static int y_old = -1;
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static double scrollbar_value_old = -1.0;
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static int const motion_interval = 200;
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static Timeout timdel(motion_interval);
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XEvent * ev = static_cast<XEvent*>(xev);
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XWorkArea * area = static_cast<XWorkArea*>(ob->u_vdata);
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@ -330,8 +281,7 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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switch (event) {
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case FL_DRAW:
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if (!area->work_area ||
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!area->work_area->form->visible)
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if (!area->work_area || !area->work_area->form->visible)
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return 1;
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lyxerr[Debug::WORKAREA] << "Workarea event: DRAW" << endl;
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area->redraw(area->workWidth(), area->workHeight());
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@ -362,30 +312,50 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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case FL_DRAG:
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#endif
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{
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if (!ev || !area->scrollbar)
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break;
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int const drag_x = ev->xmotion.x;
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int const drag_y = ev->xmotion.y;
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int const area_x = ob->x;
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int const area_y = ob->y;
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int const area_w = ob->w;
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int const area_h = ob->h;
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// Check if the mouse is above or below the workarea
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if (drag_y >= area_y + area_h || drag_y <= area_y) {
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// we are outside, then we must not give too many
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// motion events.
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if (timdel.running())
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if (drag_y <= area_y || drag_y >= area_y + area_h) {
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// The mouse button is depressed and we are outside the
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// workarea. That means we are simultaneously selecting
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// text and scrolling the view.
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// Use a Timeout to react to a drag events only every
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// 200ms. All intervening events are discarded,
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// allowing the user to control position easily.
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static int const discard_interval = 200;
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static Timeout timeout(discard_interval);
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if (timeout.running())
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break;
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else
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timdel.start();
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// The timeout is not running, so process the
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// event, first starting the timeout to discard future
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// events.
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timeout.start();
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}
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if (!ev || !area->scrollbar)
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break;
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if (ev->xmotion.x != x_old ||
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ev->xmotion.y != y_old ||
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fl_get_scrollbar_value(area->scrollbar) != scrollbar_value_old
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) {
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x_old = ev->xmotion.x;
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y_old = ev->xmotion.y;
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scrollbar_value_old = fl_get_scrollbar_value(area->scrollbar);
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lyxerr[Debug::WORKAREA] << "Workarea event: MOUSE" << endl;
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static int x_old = -1;
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static int y_old = -1;
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static double scrollbar_value_old = -1.0;
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double const scrollbar_value =
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fl_get_scrollbar_value(area->scrollbar);
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if (drag_x != x_old || drag_y != y_old ||
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scrollbar_value != scrollbar_value_old) {
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x_old = drag_x;
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y_old = drag_y;
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scrollbar_value_old = scrollbar_value;
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lyxerr[Debug::WORKAREA] << "Workarea event: DRAG"
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<< endl;
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// It transpires that ev->xbutton.button == 0 when
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// the mouse is dragged, so it cannot be used to
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@ -404,7 +374,6 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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ev->xbutton.y - ob->y,
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x_button_state(key));
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area->dispatch(cmd);
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}
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break;
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}
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@ -415,7 +384,7 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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case FL_KEYPRESS:
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#endif
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{
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lyxerr[Debug::WORKAREA] << "Workarea event: KEYBOARD" << endl;
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lyxerr[Debug::WORKAREA] << "Workarea event: KEYPRESS" << endl;
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KeySym keysym = 0;
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char dummy[1];
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@ -426,21 +395,18 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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LyXLookupString(ev, dummy, 1, &keysym);
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#else
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XLookupString(xke, dummy, 1, &keysym, 0);
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// int num_keys = XLookupString(xke, dummy, 10, &keysym, &xcs);
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// lyxerr << "We have " << num_keys << " keys in the returned buffer" << endl;
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// lyxerr << "Our dummy string is " << dummy << endl;
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#endif
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if (lyxerr.debugging(Debug::KEY)) {
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char const * tmp = XKeysymToString(key);
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char const * tmp2 = XKeysymToString(keysym);
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string const stm = (tmp ? tmp : "");
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string const stm2 = (tmp2 ? tmp2 : "");
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char const * const tmp = XKeysymToString(key);
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char const * const tmp2 = XKeysymToString(keysym);
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string const stm = (tmp ? tmp : string());
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string const stm2 = (tmp2 ? tmp2 : string());
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lyxerr[Debug::KEY] << "XWorkArea: Key is `" << stm
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<< "' [" << key << ']' << endl;
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lyxerr[Debug::KEY] << "XWorkArea: Keysym is `" << stm2
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<< "' [" << keysym << ']' << endl;
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lyxerr << "XWorkArea: Key is `" << stm
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<< "' [" << key << "]\n"
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<< "XWorkArea: Keysym is `" << stm2
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<< "' [" << keysym << ']' << endl;
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}
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#if FL_VERSION < 1 && (FL_REVISION < 89 || (FL_REVISION == 89 && FL_FIXLEVEL < 5))
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@ -454,11 +420,11 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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#else
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// Note that we need this handling because of a bug
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// in XForms 0.89, if this bug is resolved in the way I hope
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// we can just use the keysym directly with out looking
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// we can just use the keysym directly without looking
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// at key at all. (Lgb)
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KeySym ret_key = 0;
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if (!key) {
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// We migth have to add more keysyms here also,
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// We might have to add more keysyms here also,
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// we will do that as the issues arise. (Lgb)
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if (keysym == XK_space) {
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ret_key = keysym;
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@ -477,9 +443,9 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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// << static_cast<unsigned char>(key)
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// << endl;
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//} else {
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ret_key = (keysym ? keysym : key);
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lyxerr[Debug::KEY] << "Using keysym [B]"
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<< endl;
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ret_key = (keysym ? keysym : key);
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lyxerr[Debug::KEY] << "Using keysym [B]"
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<< endl;
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//}
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}
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@ -504,8 +470,8 @@ int XWorkArea::work_area_handler(FL_OBJECT * ob, int event,
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// << XEventsQueued(fl_get_display(), QueuedAlready)
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// << 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
|
||||
@ -573,51 +539,43 @@ bool clipboard_read = false;
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
@ -633,9 +591,10 @@ string const XWorkArea::getClipboard() const
|
||||
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 << dec << endl;
|
||||
lyxerr << "Received unhandled X11 event\n"
|
||||
<< "Type: 0x" << hex << ev.xany.type
|
||||
<< " Target: 0x" << hex << ev.xany.window
|
||||
<< dec << endl;
|
||||
}
|
||||
}
|
||||
return clipboard_selection;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user