]> git.lyx.org Git - lyx.git/blobdiff - src/WorkArea.C
John's Layout Tabular UI improvements and Martins fixes to clearing the
[lyx.git] / src / WorkArea.C
index 7633b8362b1a77679a3bd2e3a02e121e4ed09a06..f969ff3cf35a943b2f3f17fed3f4c056a0b1d16a 100644 (file)
@@ -4,12 +4,11 @@
  *           LyX, The Document Processor
  *        
  *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2000 The LyX Team.
+ *           Copyright 1995-2001 The LyX Team.
  *
  * ====================================================== */
 
 #include <config.h>
-#include <cmath>
 
 #ifdef __GNUG__
 #pragma implementation
 
 #include "WorkArea.h"
 #include "debug.h"
-#include "support/lstrings.h"
-#include "BufferView.h"
 #include "LyXView.h"
-#include "lyxfunc.h"
+#include "lyxrc.h" // lyxrc.show_banner
+#include "version.h" // lyx_version
+
+#if 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>
 
 using std::endl;
+using std::abs;
 
 FL_OBJECT * figinset_canvas;
 
-// needed to make the c++ compiler find the correct version of abs.
-// This is at least true for g++.
-using std::abs;
+namespace {
 
-static inline
+inline
 void waitForX()
 {
        XSync(fl_get_display(), 0);
 }
 
+} // anon namespace
+
+
 extern "C" {
-// Just a bunch of C wrappers around static members of WorkArea
+       // Just a bunch of C wrappers around static members of WorkArea
+       static
        void C_WorkArea_scroll_cb(FL_OBJECT * ob, long buf)
         {
                WorkArea::scroll_cb(ob, buf);
         }
 
+       
+       static
        int C_WorkArea_work_area_handler(FL_OBJECT * ob, int event,
-                                           FL_Coord, FL_Coord, 
-                                           int key, void * xev)
+                                        FL_Coord, FL_Coord, 
+                                        int key, void * xev)
         {
                return WorkArea::work_area_handler(ob, event,
                                                   0, 0, key, xev);
@@ -53,21 +67,20 @@ extern "C" {
 }
 
 
-
-WorkArea::WorkArea(BufferView * o, int xpos, int ypos, int width, int height)
-       : owner_(o), workareapixmap(0), painter_(*this)
+WorkArea::WorkArea(int xpos, int ypos, int width, int height)
+       : splash_(0), splash_text_(0), workareapixmap(0), painter_(*this)
 {
        fl_freeze_all_forms();
 
        figinset_canvas = 0;
 
-       if (lyxerr.debugging(Debug::GUI))
+       if (lyxerr.debugging(Debug::WORKAREA))
                lyxerr << "Creating work area: +"
                       << xpos << '+' << ypos << ' '
                       << width << 'x' << height << endl;
        //
        FL_OBJECT * obj;
-       const int bw = int(std::abs(float(fl_get_border_width())));
+       int const bw = int(abs(fl_get_border_width()));
 
        // We really want to get rid of figinset_canvas.
        ::figinset_canvas = figinset_canvas = obj =
@@ -76,9 +89,9 @@ WorkArea::WorkArea(BufferView * o, int xpos, int ypos, int width, int height)
        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
-       if (lyxerr.debugging(Debug::GUI))
+       if (lyxerr.debugging(Debug::WORKAREA))
                lyxerr << "\tbackground box: +"
                       << xpos << '+' << ypos << ' '
                       << width - 15 << 'x' << height << endl;
@@ -89,6 +102,37 @@ WorkArea::WorkArea(BufferView * o, int xpos, int ypos, int width, int height)
        fl_set_object_resize(obj, FL_RESIZE_ALL);
        fl_set_object_gravity(obj, NorthWestGravity, SouthEastGravity);
 
+       // Add a splash screen to the centre of the work area
+       string const splash_file = (lyxrc.show_banner) ?
+               LibFileSearch("images", "banner", "xpm") : string();
+
+       if (!splash_file.empty()) {
+               int const splash_w = 425;
+               int const splash_h = 290;
+               int const splash_x = xpos + (width - 15 - splash_w) / 2;
+               int const splash_y = ypos + (height - splash_h) / 2;
+               splash_ = obj =
+                       fl_add_pixmapbutton(FL_NORMAL_BUTTON,
+                                           splash_x, splash_y, 
+                                           splash_w, splash_h, "");
+               fl_set_pixmapbutton_file(obj, splash_file.c_str());
+               fl_set_pixmapbutton_focus_outline(obj, 3);
+               fl_set_object_boxtype(obj, FL_NO_BOX);
+
+               int const text_x = splash_x + 260;
+               int const text_y = splash_y + 255;
+               splash_text_ = obj =
+                       fl_add_text(FL_NORMAL_TEXT, text_x, text_y, 160, 16,
+                                   lyx_version);
+               fl_set_object_lsize(obj, FL_NORMAL_SIZE);
+               fl_mapcolor(FL_FREE_COL2, 0x2b, 0x47, 0x82);
+               fl_mapcolor(FL_FREE_COL3, 0xe1, 0xd2, 0x9b);
+               fl_set_object_color(obj, FL_FREE_COL2, FL_FREE_COL2);
+               fl_set_object_lcol(obj, FL_FREE_COL3);
+               fl_set_object_lalign(obj, FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
+               fl_set_object_lstyle(obj, FL_BOLD_STYLE);
+       }
+
        //
        // THE SCROLLBAR
        //
@@ -110,21 +154,20 @@ WorkArea::WorkArea(BufferView * o, int xpos, int ypos, int width, int height)
 
        // We add this object as late as possible to avoit problems
        // with drawing.
-       if (lyxerr.debugging(Debug::GUI))
+       if (lyxerr.debugging(Debug::WORKAREA))
                lyxerr << "\tfree object: +"
                       << xpos + bw << '+' << ypos + bw << ' '
                       << width - 15 - 2 * bw << 'x'
                       << height - 2 * bw << endl;
        
-       work_area = obj = fl_add_free(FL_INPUT_FREE,
+       work_area = obj = fl_add_free(FL_ALL_FREE,
                                      xpos + bw, ypos + bw,
                                      width - 15 - 2 * bw, // scrollbarwidth
                                      height - 2 * bw, "",
                                      C_WorkArea_work_area_handler);
-       //obj->wantkey = FL_KEY_TAB;
        obj->wantkey = FL_KEY_ALL;
        obj->u_vdata = this; /* This is how we pass the WorkArea
-                                      to the work_area_handler. */
+                               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);
@@ -136,7 +179,7 @@ WorkArea::WorkArea(BufferView * o, int xpos, int ypos, int width, int height)
 WorkArea::~WorkArea()
 {
        if (workareapixmap)
-               XFreePixmap(fl_display, workareapixmap);
+               XFreePixmap(fl_get_display(), workareapixmap);
 }
 
 
@@ -152,12 +195,6 @@ bool WorkArea::belowMouse() const
        if (x > ulx && y > uly && x < ulx + h && y < uly + w)
                return true;
        return false;
-       
-       
-       //lyxerr << "Mouse: (" << x << ", " << y <<") button = " << button << endl;
-       //lyxerr << "Workarea: (" << work_area->x + work_area->form->x << ", " << work_area->y + work_area->form->y << ", " << work_area->w << ", " << work_area->h << ")" << endl;
-       //lyxerr << "Below mouse: " << work_area->belowmouse << endl;
-       //return work_area->belowmouse;
 }
 
 
@@ -165,11 +202,11 @@ void WorkArea::resize(int xpos, int ypos, int width, int height)
 {
        fl_freeze_all_forms();
        
-       const int bw = int(std::abs(float(fl_get_border_width())));
+       int const bw = int(abs(fl_get_border_width()));
 
        // a box
        fl_set_object_geometry(backgroundbox, xpos, ypos, width - 15, height);
-       
+
        //
        // THE SCROLLBAR
        //
@@ -185,12 +222,36 @@ void WorkArea::resize(int xpos, int ypos, int width, int height)
                               height - 2 * bw);
 
        fl_unfreeze_all_forms();
-
 }
 
 
+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 WorkArea::createPixmap(int width, int height)
 {
+       // Three calls to createPixmap are needed to draw the initial view
+       // of LyX. Any more and the splash is destroyed.
+       static int counter = 0;
+       if (++counter == 4) {
+               destroy_object(splash_);
+               splash_ = 0;
+               destroy_object(splash_text_);
+               splash_text_ = 0;
+       }
+
        static int cur_width = -1;
        static int cur_height = -1;
 
@@ -201,27 +262,29 @@ void WorkArea::createPixmap(int width, int height)
        cur_height = height;
 
        if (workareapixmap)
-               XFreePixmap(fl_display, workareapixmap);
+               XFreePixmap(fl_get_display(), workareapixmap);
 
-       if (lyxerr.debugging(Debug::GUI))
+       if (lyxerr.debugging(Debug::WORKAREA))
                lyxerr << "Creating pixmap ("
                       << width << 'x' << height << ")" << endl;
        
-       workareapixmap = XCreatePixmap(fl_display,
-                                      RootWindow(fl_display, 0),
+       workareapixmap = XCreatePixmap(fl_get_display(),
+                                      RootWindow(fl_get_display(), 0),
                                       width,
                                       height, 
                                       fl_get_visual_depth());
-       if (lyxerr.debugging(Debug::GUI))
+       if (lyxerr.debugging(Debug::WORKAREA))
                lyxerr << "\tpixmap=" << workareapixmap << endl;
 }
 
 
 void WorkArea::greyOut() const
 {
-       fl_winset(FL_ObjWin(work_area));
-       fl_rectangle(1, work_area->x, work_area->y,
-                    work_area->w, work_area->h, FL_GRAY63);
+       if (!splash_) {
+               fl_winset(FL_ObjWin(work_area));
+               fl_rectangle(1, work_area->x, work_area->y,
+                            work_area->w, work_area->h, FL_GRAY63);
+       }
 }
 
 
@@ -257,11 +320,10 @@ void WorkArea::scroll_cb(FL_OBJECT * ob, long)
        // If we really want the accellerating scroll we can do that
        // from here. IMHO that is a waste of effort since we already
        // have other ways to move fast around in the document. (Lgb)
-       area->owner_->scrollCB(fl_get_scrollbar_value(ob));
+       area->scrollCB(fl_get_scrollbar_value(ob));
        waitForX();
 }
 
-bool Lgb_bug_find_hack = false;
 
 int WorkArea::work_area_handler(FL_OBJECT * ob, int event,
                                FL_Coord, FL_Coord ,
@@ -281,79 +343,135 @@ int WorkArea::work_area_handler(FL_OBJECT * ob, int event,
                if (!area->work_area ||
                    !area->work_area->form->visible)
                        return 1;
-               lyxerr[Debug::GUI] << "Workarea event: DRAW" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: DRAW" << endl;
                area->createPixmap(area->workWidth(), area->height());
-               Lgb_bug_find_hack = true;
                area->workAreaExpose();
-               Lgb_bug_find_hack = false;
                break;
        case FL_PUSH:
-               if (!ev) break;
+               if (!ev || ev->xbutton.button == 0) break;
                // Should really have used xbutton.state
-               lyxerr[Debug::GUI] << "Workarea event: PUSH" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: PUSH" << endl;
                area->workAreaButtonPress(ev->xbutton.x - ob->x,
                                          ev->xbutton.y - ob->y,
                                          ev->xbutton.button);
                //area->workAreaKeyPress(XK_Pointer_Button1, ev->xbutton.state);
                break; 
        case FL_RELEASE:
-               if (!ev) break;
+               if (!ev || ev->xbutton.button == 0) break;
                // Should really have used xbutton.state
-               lyxerr[Debug::GUI] << "Workarea event: RELEASE" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: RELEASE" << endl;
                area->workAreaButtonRelease(ev->xbutton.x - ob->x,
                                      ev->xbutton.y - ob->y,
                                      ev->xbutton.button);
                break;
+#if 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::GUI] << "Workarea event: MOUSE" << endl;
+                       lyxerr[Debug::WORKAREA] << "Workarea event: MOUSE" << endl;
                        area->workAreaMotionNotify(ev->xmotion.x - ob->x,
                                             ev->xmotion.y - ob->y,
                                             ev->xbutton.state);
                }
                break;
+#if FL_REVISION < 89
        case FL_KEYBOARD:
+#else
+       case FL_KEYPRESS:
+#endif
        {
-               lyxerr[Debug::KEY] << "Workarea event: KEYBOARD";
-               if (static_cast<XEvent*>(ev)->type == KeyPress)
-                       lyxerr << "KeyPress" << endl;
-               else
-                       lyxerr << "KeyRelease" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: KEYBOARD" << endl;
                
                KeySym keysym = 0;
-               char s_r[10];
+               char dummy[1];
                XKeyEvent * xke = reinterpret_cast<XKeyEvent *>(ev);
-               XLookupString(xke, s_r, 10, &keysym, 0);
+#if 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);
+#endif
                if (lyxerr.debugging(Debug::KEY)) {
                        char const * tmp = XKeysymToString(key);
                        char const * tmp2 = XKeysymToString(keysym);
-                       string stm = (tmp ? tmp : "");
-                       string stm2 = (tmp2 ? tmp2 : "");
+                       string const stm = (tmp ? tmp : "");
+                       string const stm2 = (tmp2 ? tmp2 : "");
                        
-                       lyxerr << "WorkArea: Key is `" << stm << "' ["
+                       lyxerr[Debug::KEY] << "WorkArea: Key is `" << stm << "' ["
                               << key << "]" << endl;
-                       lyxerr << "WorkArea: Keysym is `" << stm2 << "' ["
+                       lyxerr[Debug::KEY] << "WorkArea: Keysym is `" << stm2 << "' ["
                               << keysym << "]" << endl;
                }
 
-               if (!key) break;
-               
-               KeySym ret_key = (keysym ? keysym : key);
-               unsigned int ret_state = xke->state;
+#if 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
+               // at key at all. (Lgb)
+               KeySym ret_key = 0;
+               if (!key) {
+                       // We migth have to add more keysyms here also,
+                       // we will do that as the issues arise. (Lgb)
+                       if (keysym == XK_space) {
+                               ret_key = keysym;
+                               lyxerr[Debug::KEY] << "Using keysym [A]"
+                                                  << endl;
+                       } else
+                               break;
+               } else {
+                       // It seems that this was a bit optimistic...
+                       // With this hacking things seems to be better (Lgb)
+                       //if (!iscntrl(key)) {
+                       //      ret_key = key;
+                       //      lyxerr[Debug::KEY]
+                       //              << "Using key [B]\n"
+                       //              << "Uchar["
+                       //              << static_cast<unsigned char>(key)
+                       //              << endl;
+                       //} else {
+                               ret_key = (keysym ? keysym : key);
+                               lyxerr[Debug::KEY] << "Using keysym [B]"
+                                                  << endl;
+                               //}
+               }
                
-               static Time last_time_pressed = 0;
-               static unsigned int last_key_pressed = 0;
-               static unsigned int last_state_pressed = 0;
-               if (xke->time - last_time_pressed < 50 // should perhaps be tunable
-                   && xke->state == last_state_pressed
+#endif
+               unsigned int const ret_state = xke->state;
+
+               // If you have a better way to handle "wild-output" of
+               // characters after the key has been released than the one
+               // below, please contact me. (Lgb)
+               static Time last_time_pressed;
+               static unsigned int last_key_pressed;
+               static unsigned int last_state_pressed;
+               lyxerr[Debug::KEY] << "Workarea Diff: "
+                                  << xke->time - last_time_pressed
+                                  << endl;
+               if (xke->time - last_time_pressed < 25 // should perhaps be tunable
+                   && ret_state == last_state_pressed
                    && xke->keycode == last_key_pressed) {
                        lyxerr[Debug::KEY]
                                << "Workarea: Purging X events." << endl;
-                       XSync(fl_get_display(), 1);
+                       //lyxerr << "Workarea Events: "
+                       //       << 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
                        // releasing the PageDown button. The question is if
                        // this purging of XEvents can cause any harm...
@@ -363,45 +481,51 @@ int WorkArea::work_area_handler(FL_OBJECT * ob, int event,
                }
                last_time_pressed = xke->time;
                last_key_pressed = xke->keycode;
-               last_state_pressed = xke->state;
+               last_state_pressed = ret_state;
                
                area->workAreaKeyPress(ret_key, ret_state);
        }
        break;
+
+#if FL_REVISION >= 89
+       case FL_KEYRELEASE:
+               lyxerr[Debug::WORKAREA] << "Workarea event: KEYRELEASE" << endl;
+               break;
+#endif
+
        case FL_FOCUS:
-               lyxerr[Debug::GUI] << "Workarea event: FOCUS" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: FOCUS" << endl;
                area->workAreaFocus();
                break;
        case FL_UNFOCUS:
-               lyxerr[Debug::GUI] << "Workarea event: UNFOCUS" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: UNFOCUS" << endl;
                area->workAreaUnfocus();
                break;
        case FL_ENTER:
-               lyxerr[Debug::GUI] << "Workarea event: ENTER" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: ENTER" << endl;
                area->workAreaEnter();
                break;
        case FL_LEAVE:
-               lyxerr[Debug::GUI] << "Workarea event: LEAVE" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: LEAVE" << endl;
                area->workAreaLeave();
                break;
        case FL_DBLCLICK:
                if (!ev) break;
-               lyxerr[Debug::GUI] << "Workarea event: DBLCLICK" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: DBLCLICK" << endl;
                area->workAreaDoubleClick(ev->xbutton.x - ob->x,
                                          ev->xbutton.y - ob->y,
                                          ev->xbutton.button);
                break;
        case FL_TRPLCLICK:
                if (!ev) break;
-               lyxerr[Debug::GUI] << "Workarea event: TRPLCLICK" << endl;
+               lyxerr[Debug::WORKAREA] << "Workarea event: TRPLCLICK" << endl;
                area->workAreaTripleClick(ev->xbutton.x - ob->x,
                                          ev->xbutton.y - ob->y,
                                          ev->xbutton.button);
                break;
        case FL_OTHER:
                if (!ev) break;
-                       lyxerr[Debug::GUI] << "Workarea event: OTHER" << endl;
-
+               lyxerr[Debug::WORKAREA] << "Workarea event: OTHER" << endl;
                break;
        }
   
@@ -409,26 +533,33 @@ int WorkArea::work_area_handler(FL_OBJECT * ob, int event,
 }
 
 
-static string clipboard_selection;
-static bool clipboard_read = false;
+namespace {
+
+string clipboard_selection;
+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;
+       }
+
 }
 
-string WorkArea::getClipboard() const 
+} // namespace anon
+
+string const WorkArea::getClipboard() const 
 {
        clipboard_read = false;
        
@@ -439,8 +570,10 @@ string WorkArea::getClipboard() const
        
        while (!clipboard_read) {
                if (fl_check_forms() == FL_EVENT) {
-                       lyxerr << "LyX: This shouldn't happen..." << endl;
                        fl_XNextEvent(&ev);
+                       lyxerr << "Received unhandled X11 event" << endl; 
+                       lyxerr << "Type: 0x" << std::hex << ev.xany.type <<
+                               "Target: 0x" << std::hex << ev.xany.window << endl;
                }
        }
        return clipboard_selection;
@@ -452,5 +585,5 @@ void WorkArea::putClipboard(string const & s) const
        static string hold;
        hold = s;
        
-       fl_stuff_clipboard(work_area, 0, hold.c_str(), hold.size(), 0);
+       fl_stuff_clipboard(work_area, 0, hold.data(), hold.size(), 0);
 }