Mercurial > vim
view src/gui_beval.c @ 18342:fedab77fee7b
Added tag v8.1.2165 for changeset a9d518b1271b9f9d104a50f21fdccca8b2fcdda0
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 16 Oct 2019 22:30:05 +0200 |
parents | 041156ce1d22 |
children | 79e10adc821d |
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/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * Visual Workshop integration by Gordon Prieur * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ #include "vim.h" #if defined(FEAT_BEVAL_GUI) || defined(PROTO) /* on Win32 only get_beval_info() is required */ #if !defined(FEAT_GUI_MSWIN) || defined(PROTO) #ifdef FEAT_GUI_GTK # if GTK_CHECK_VERSION(3,0,0) # include <gdk/gdkkeysyms-compat.h> # else # include <gdk/gdkkeysyms.h> # endif # include <gtk/gtk.h> #else # include <X11/keysym.h> # ifdef FEAT_GUI_MOTIF # include <Xm/PushB.h> # include <Xm/Separator.h> # include <Xm/List.h> # include <Xm/Label.h> # include <Xm/AtomMgr.h> # include <Xm/Protocols.h> # else /* Assume Athena */ # include <X11/Shell.h> # ifdef FEAT_GUI_NEXTAW # include <X11/neXtaw/Label.h> # else # include <X11/Xaw/Label.h> # endif # endif #endif #ifndef FEAT_GUI_GTK extern Widget vimShell; /* * Currently, we assume that there can be only one BalloonEval showing * on-screen at any given moment. This variable will hold the currently * showing BalloonEval or NULL if none is showing. */ static BalloonEval *current_beval = NULL; #endif #ifdef FEAT_GUI_GTK static void addEventHandler(GtkWidget *, BalloonEval *); static void removeEventHandler(BalloonEval *); static gint target_event_cb(GtkWidget *, GdkEvent *, gpointer); static gint mainwin_event_cb(GtkWidget *, GdkEvent *, gpointer); static void pointer_event(BalloonEval *, int, int, unsigned); static void key_event(BalloonEval *, unsigned, int); static gboolean timeout_cb(gpointer); # if GTK_CHECK_VERSION(3,0,0) static gboolean balloon_draw_event_cb (GtkWidget *, cairo_t *, gpointer); # else static gint balloon_expose_event_cb (GtkWidget *, GdkEventExpose *, gpointer); # endif #else static void addEventHandler(Widget, BalloonEval *); static void removeEventHandler(BalloonEval *); static void pointerEventEH(Widget, XtPointer, XEvent *, Boolean *); static void pointerEvent(BalloonEval *, XEvent *); static void timerRoutine(XtPointer, XtIntervalId *); #endif static void cancelBalloon(BalloonEval *); static void requestBalloon(BalloonEval *); static void drawBalloon(BalloonEval *); static void undrawBalloon(BalloonEval *beval); static void createBalloonEvalWindow(BalloonEval *); /* * Create a balloon-evaluation area for a Widget. * There can be either a "mesg" for a fixed string or "mesgCB" to generate a * message by calling this callback function. * When "mesg" is not NULL it must remain valid for as long as the balloon is * used. It is not freed here. * Returns a pointer to the resulting object (NULL when out of memory). */ BalloonEval * gui_mch_create_beval_area( void *target, char_u *mesg, void (*mesgCB)(BalloonEval *, int), void *clientData) { #ifndef FEAT_GUI_GTK char *display_name; /* get from gui.dpy */ int screen_num; char *p; #endif BalloonEval *beval; if (mesg != NULL && mesgCB != NULL) { iemsg(_("E232: Cannot create BalloonEval with both message and callback")); return NULL; } beval = ALLOC_CLEAR_ONE(BalloonEval); if (beval != NULL) { #ifdef FEAT_GUI_GTK beval->target = GTK_WIDGET(target); #else beval->target = (Widget)target; beval->appContext = XtWidgetToApplicationContext((Widget)target); #endif beval->showState = ShS_NEUTRAL; vim_free(beval->msg); beval->msg = mesg == NULL ? NULL : vim_strsave(mesg); beval->msgCB = mesgCB; beval->clientData = clientData; /* * Set up event handler which will keep its eyes on the pointer, * and when the pointer rests in a certain spot for a given time * interval, show the beval. */ addEventHandler(beval->target, beval); createBalloonEvalWindow(beval); #ifndef FEAT_GUI_GTK /* * Now create and save the screen width and height. Used in drawing. */ display_name = DisplayString(gui.dpy); p = strrchr(display_name, '.'); if (p != NULL) screen_num = atoi(++p); else screen_num = 0; beval->screen_width = DisplayWidth(gui.dpy, screen_num); beval->screen_height = DisplayHeight(gui.dpy, screen_num); #endif } return beval; } #if defined(FEAT_BEVAL_TIP) || defined(PROTO) /* * Destroy a balloon-eval and free its associated memory. */ void gui_mch_destroy_beval_area(BalloonEval *beval) { cancelBalloon(beval); removeEventHandler(beval); /* Children will automatically be destroyed */ # ifdef FEAT_GUI_GTK gtk_widget_destroy(beval->balloonShell); # else XtDestroyWidget(beval->balloonShell); # endif # ifdef FEAT_VARTABS if (beval->vts) vim_free(beval->vts); # endif vim_free(beval); } #endif void gui_mch_enable_beval_area(BalloonEval *beval) { if (beval != NULL) addEventHandler(beval->target, beval); } void gui_mch_disable_beval_area(BalloonEval *beval) { if (beval != NULL) removeEventHandler(beval); } #if defined(FEAT_BEVAL_TIP) || defined(PROTO) /* * This function returns the BalloonEval * associated with the currently * displayed tooltip. Returns NULL if there is no tooltip currently showing. * * Assumption: Only one tooltip can be shown at a time. */ BalloonEval * gui_mch_currently_showing_beval(void) { return current_beval; } #endif #endif /* !FEAT_GUI_MSWIN */ #if defined(FEAT_NETBEANS_INTG) || defined(FEAT_EVAL) || defined(PROTO) # if !defined(FEAT_GUI_MSWIN) || defined(PROTO) /* * Show a balloon with "mesg". */ void gui_mch_post_balloon(BalloonEval *beval, char_u *mesg) { vim_free(beval->msg); beval->msg = mesg == NULL ? NULL : vim_strsave(mesg); if (beval->msg != NULL) drawBalloon(beval); else undrawBalloon(beval); } # endif /* !FEAT_GUI_MSWIN */ #endif /* FEAT_NETBEANS_INTG || PROTO */ #if !defined(FEAT_GUI_MSWIN) || defined(PROTO) #if defined(FEAT_BEVAL_TIP) || defined(PROTO) /* * Hide the given balloon. */ void gui_mch_unpost_balloon(BalloonEval *beval) { VIM_CLEAR(beval->msg); undrawBalloon(beval); } #endif #ifdef FEAT_GUI_GTK static void addEventHandler(GtkWidget *target, BalloonEval *beval) { /* * Connect to the generic "event" signal instead of the individual * signals for each event type, because the former is emitted earlier. * This allows us to catch events independently of the signal handlers * in gui_gtk_x11.c. */ g_signal_connect(G_OBJECT(target), "event", G_CALLBACK(target_event_cb), beval); /* * Nasty: Key press events go to the main window thus the drawing area * will never see them. This means we have to connect to the main window * as well in order to catch those events. */ if (gtk_socket_id == 0 && gui.mainwin != NULL && gtk_widget_is_ancestor(target, gui.mainwin)) { g_signal_connect(G_OBJECT(gui.mainwin), "event", G_CALLBACK(mainwin_event_cb), beval); } } static void removeEventHandler(BalloonEval *beval) { g_signal_handlers_disconnect_by_func(G_OBJECT(beval->target), FUNC2GENERIC(target_event_cb), beval); if (gtk_socket_id == 0 && gui.mainwin != NULL && gtk_widget_is_ancestor(beval->target, gui.mainwin)) { g_signal_handlers_disconnect_by_func(G_OBJECT(gui.mainwin), FUNC2GENERIC(mainwin_event_cb), beval); } } static gint target_event_cb(GtkWidget *widget, GdkEvent *event, gpointer data) { BalloonEval *beval = (BalloonEval *)data; switch (event->type) { case GDK_ENTER_NOTIFY: pointer_event(beval, (int)event->crossing.x, (int)event->crossing.y, event->crossing.state); break; case GDK_MOTION_NOTIFY: if (event->motion.is_hint) { int x; int y; GdkModifierType state; /* * GDK_POINTER_MOTION_HINT_MASK is set, thus we cannot obtain * the coordinates from the GdkEventMotion struct directly. */ # if GTK_CHECK_VERSION(3,0,0) { GdkWindow * const win = gtk_widget_get_window(widget); GdkDisplay * const dpy = gdk_window_get_display(win); # if GTK_CHECK_VERSION(3,20,0) GdkSeat * const seat = gdk_display_get_default_seat(dpy); GdkDevice * const dev = gdk_seat_get_pointer(seat); # else GdkDeviceManager * const mngr = gdk_display_get_device_manager(dpy); GdkDevice * const dev = gdk_device_manager_get_client_pointer(mngr); # endif gdk_window_get_device_position(win, dev , &x, &y, &state); } # else gdk_window_get_pointer(widget->window, &x, &y, &state); # endif pointer_event(beval, x, y, (unsigned int)state); } else { pointer_event(beval, (int)event->motion.x, (int)event->motion.y, event->motion.state); } break; case GDK_LEAVE_NOTIFY: /* * Ignore LeaveNotify events that are not "normal". * Apparently we also get it when somebody else grabs focus. */ if (event->crossing.mode == GDK_CROSSING_NORMAL) cancelBalloon(beval); break; case GDK_BUTTON_PRESS: case GDK_SCROLL: cancelBalloon(beval); break; case GDK_KEY_PRESS: key_event(beval, event->key.keyval, TRUE); break; case GDK_KEY_RELEASE: key_event(beval, event->key.keyval, FALSE); break; default: break; } return FALSE; /* continue emission */ } static gint mainwin_event_cb(GtkWidget *widget UNUSED, GdkEvent *event, gpointer data) { BalloonEval *beval = (BalloonEval *)data; switch (event->type) { case GDK_KEY_PRESS: key_event(beval, event->key.keyval, TRUE); break; case GDK_KEY_RELEASE: key_event(beval, event->key.keyval, FALSE); break; default: break; } return FALSE; /* continue emission */ } static void pointer_event(BalloonEval *beval, int x, int y, unsigned state) { int distance; distance = ABS(x - beval->x) + ABS(y - beval->y); if (distance > 4) { /* * Moved out of the balloon location: cancel it. * Remember button state */ beval->state = state; cancelBalloon(beval); /* Mouse buttons are pressed - no balloon now */ if (!(state & ((int)GDK_BUTTON1_MASK | (int)GDK_BUTTON2_MASK | (int)GDK_BUTTON3_MASK))) { beval->x = x; beval->y = y; if (state & (int)GDK_MOD1_MASK) { /* * Alt is pressed -- enter super-evaluate-mode, * where there is no time delay */ if (beval->msgCB != NULL) { beval->showState = ShS_PENDING; (*beval->msgCB)(beval, state); } } else { beval->timerID = g_timeout_add((guint)p_bdlay, &timeout_cb, beval); } } } } static void key_event(BalloonEval *beval, unsigned keyval, int is_keypress) { if (beval->showState == ShS_SHOWING && beval->msgCB != NULL) { switch (keyval) { case GDK_Shift_L: case GDK_Shift_R: beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, (is_keypress) ? (int)GDK_SHIFT_MASK : 0); break; case GDK_Control_L: case GDK_Control_R: beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, (is_keypress) ? (int)GDK_CONTROL_MASK : 0); break; default: /* Don't do this for key release, we apparently get these with * focus changes in some GTK version. */ if (is_keypress) cancelBalloon(beval); break; } } else cancelBalloon(beval); } static gboolean timeout_cb(gpointer data) { BalloonEval *beval = (BalloonEval *)data; beval->timerID = 0; /* * If the timer event happens then the mouse has stopped long enough for * a request to be started. The request will only send to the debugger if * there the mouse is pointing at real data. */ requestBalloon(beval); return FALSE; /* don't call me again */ } # if GTK_CHECK_VERSION(3,0,0) static gboolean balloon_draw_event_cb(GtkWidget *widget, cairo_t *cr, gpointer data UNUSED) { GtkStyleContext *context = NULL; gint width = -1, height = -1; if (widget == NULL) return TRUE; context = gtk_widget_get_style_context(widget); width = gtk_widget_get_allocated_width(widget); height = gtk_widget_get_allocated_height(widget); gtk_style_context_save(context); gtk_style_context_add_class(context, "tooltip"); gtk_style_context_set_state(context, GTK_STATE_FLAG_NORMAL); cairo_save(cr); gtk_render_frame(context, cr, 0, 0, width, height); gtk_render_background(context, cr, 0, 0, width, height); cairo_restore(cr); gtk_style_context_restore(context); return FALSE; } # else static gint balloon_expose_event_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data UNUSED) { gtk_paint_flat_box(widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_OUT, &event->area, widget, "tooltip", 0, 0, -1, -1); return FALSE; /* continue emission */ } # endif /* !GTK_CHECK_VERSION(3,0,0) */ #else /* !FEAT_GUI_GTK */ static void addEventHandler(Widget target, BalloonEval *beval) { XtAddEventHandler(target, PointerMotionMask | EnterWindowMask | LeaveWindowMask | ButtonPressMask | KeyPressMask | KeyReleaseMask, False, pointerEventEH, (XtPointer)beval); } static void removeEventHandler(BalloonEval *beval) { XtRemoveEventHandler(beval->target, PointerMotionMask | EnterWindowMask | LeaveWindowMask | ButtonPressMask | KeyPressMask | KeyReleaseMask, False, pointerEventEH, (XtPointer)beval); } /* * The X event handler. All it does is call the real event handler. */ static void pointerEventEH( Widget w UNUSED, XtPointer client_data, XEvent *event, Boolean *unused UNUSED) { BalloonEval *beval = (BalloonEval *)client_data; pointerEvent(beval, event); } /* * The real event handler. Called by pointerEventEH() whenever an event we are * interested in occurs. */ static void pointerEvent(BalloonEval *beval, XEvent *event) { Position distance; /* a measure of how much the pointer moved */ Position delta; /* used to compute distance */ switch (event->type) { case EnterNotify: case MotionNotify: delta = event->xmotion.x - beval->x; if (delta < 0) delta = -delta; distance = delta; delta = event->xmotion.y - beval->y; if (delta < 0) delta = -delta; distance += delta; if (distance > 4) { /* * Moved out of the balloon location: cancel it. * Remember button state */ beval->state = event->xmotion.state; if (beval->state & (Button1Mask|Button2Mask|Button3Mask)) { /* Mouse buttons are pressed - no balloon now */ cancelBalloon(beval); } else if (beval->state & (Mod1Mask|Mod2Mask|Mod3Mask)) { /* * Alt is pressed -- enter super-evaluate-mode, * where there is no time delay */ beval->x = event->xmotion.x; beval->y = event->xmotion.y; beval->x_root = event->xmotion.x_root; beval->y_root = event->xmotion.y_root; cancelBalloon(beval); if (beval->msgCB != NULL) { beval->showState = ShS_PENDING; (*beval->msgCB)(beval, beval->state); } } else { beval->x = event->xmotion.x; beval->y = event->xmotion.y; beval->x_root = event->xmotion.x_root; beval->y_root = event->xmotion.y_root; cancelBalloon(beval); beval->timerID = XtAppAddTimeOut( beval->appContext, (long_u)p_bdlay, timerRoutine, beval); } } break; /* * Motif and Athena version: Keystrokes will be caught by the * "textArea" widget, and handled in gui_x11_key_hit_cb(). */ case KeyPress: if (beval->showState == ShS_SHOWING && beval->msgCB != NULL) { Modifiers modifier; KeySym keysym; XtTranslateKeycode(gui.dpy, event->xkey.keycode, event->xkey.state, &modifier, &keysym); if (keysym == XK_Shift_L || keysym == XK_Shift_R) { beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, ShiftMask); } else if (keysym == XK_Control_L || keysym == XK_Control_R) { beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, ControlMask); } else cancelBalloon(beval); } else cancelBalloon(beval); break; case KeyRelease: if (beval->showState == ShS_SHOWING && beval->msgCB != NULL) { Modifiers modifier; KeySym keysym; XtTranslateKeycode(gui.dpy, event->xkey.keycode, event->xkey.state, &modifier, &keysym); if ((keysym == XK_Shift_L) || (keysym == XK_Shift_R)) { beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, 0); } else if ((keysym == XK_Control_L) || (keysym == XK_Control_R)) { beval->showState = ShS_UPDATE_PENDING; (*beval->msgCB)(beval, 0); } else cancelBalloon(beval); } else cancelBalloon(beval); break; case LeaveNotify: /* Ignore LeaveNotify events that are not "normal". * Apparently we also get it when somebody else grabs focus. * Happens for me every two seconds (some clipboard tool?) */ if (event->xcrossing.mode == NotifyNormal) cancelBalloon(beval); break; case ButtonPress: cancelBalloon(beval); break; default: break; } } static void timerRoutine(XtPointer dx, XtIntervalId *id UNUSED) { BalloonEval *beval = (BalloonEval *)dx; beval->timerID = (XtIntervalId)NULL; /* * If the timer event happens then the mouse has stopped long enough for * a request to be started. The request will only send to the debugger if * there the mouse is pointing at real data. */ requestBalloon(beval); } #endif /* !FEAT_GUI_GTK */ static void requestBalloon(BalloonEval *beval) { if (beval->showState != ShS_PENDING) { /* Determine the beval to display */ if (beval->msgCB != NULL) { beval->showState = ShS_PENDING; (*beval->msgCB)(beval, beval->state); } else if (beval->msg != NULL) drawBalloon(beval); } } #ifdef FEAT_GUI_GTK /* * Convert the string to UTF-8 if 'encoding' is not "utf-8". * Replace any non-printable characters and invalid bytes sequences with * "^X" or "<xx>" escapes, and apply SpecialKey highlighting to them. * TAB and NL are passed through unscathed. */ # define IS_NONPRINTABLE(c) (((c) < 0x20 && (c) != TAB && (c) != NL) \ || (c) == DEL) static void set_printable_label_text(GtkLabel *label, char_u *text) { char_u *convbuf = NULL; char_u *buf; char_u *p; char_u *pdest; unsigned int len; int charlen; int uc; PangoAttrList *attr_list; /* Convert to UTF-8 if it isn't already */ if (output_conv.vc_type != CONV_NONE) { convbuf = string_convert(&output_conv, text, NULL); if (convbuf != NULL) text = convbuf; } /* First let's see how much we need to allocate */ len = 0; for (p = text; *p != NUL; p += charlen) { if ((*p & 0x80) == 0) /* be quick for ASCII */ { charlen = 1; len += IS_NONPRINTABLE(*p) ? 2 : 1; /* nonprintable: ^X */ } else { charlen = utf_ptr2len(p); uc = utf_ptr2char(p); if (charlen != utf_char2len(uc)) charlen = 1; /* reject overlong sequences */ if (charlen == 1 || uc < 0xa0) /* illegal byte or */ len += 4; /* control char: <xx> */ else if (!utf_printable(uc)) /* Note: we assume here that utf_printable() doesn't * care about characters outside the BMP. */ len += 6; /* nonprintable: <xxxx> */ else len += charlen; } } attr_list = pango_attr_list_new(); buf = alloc(len + 1); /* Now go for the real work */ if (buf != NULL) { attrentry_T *aep; PangoAttribute *attr; guicolor_T pixel; #if GTK_CHECK_VERSION(3,0,0) GdkRGBA color = { 0.0, 0.0, 0.0, 1.0 }; # if PANGO_VERSION_CHECK(1,38,0) PangoAttribute *attr_alpha; # endif #else GdkColor color = { 0, 0, 0, 0 }; #endif /* Look up the RGB values of the SpecialKey foreground color. */ aep = syn_gui_attr2entry(HL_ATTR(HLF_8)); pixel = (aep != NULL) ? aep->ae_u.gui.fg_color : INVALCOLOR; if (pixel != INVALCOLOR) # if GTK_CHECK_VERSION(3,0,0) { color.red = ((pixel & 0xff0000) >> 16) / 255.0; color.green = ((pixel & 0xff00) >> 8) / 255.0; color.blue = (pixel & 0xff) / 255.0; color.alpha = 1.0; } # else gdk_colormap_query_color(gtk_widget_get_colormap(gui.drawarea), (unsigned long)pixel, &color); # endif pdest = buf; p = text; while (*p != NUL) { /* Be quick for ASCII */ if ((*p & 0x80) == 0 && !IS_NONPRINTABLE(*p)) { *pdest++ = *p++; } else { charlen = utf_ptr2len(p); uc = utf_ptr2char(p); if (charlen != utf_char2len(uc)) charlen = 1; /* reject overlong sequences */ if (charlen == 1 || uc < 0xa0 || !utf_printable(uc)) { int outlen; /* Careful: we can't just use transchar_byte() here, * since 'encoding' is not necessarily set to "utf-8". */ if (*p & 0x80 && charlen == 1) { transchar_hex(pdest, *p); /* <xx> */ outlen = 4; } else if (uc >= 0x80) { /* Note: we assume here that utf_printable() doesn't * care about characters outside the BMP. */ transchar_hex(pdest, uc); /* <xx> or <xxxx> */ outlen = (uc < 0x100) ? 4 : 6; } else { transchar_nonprint(pdest, *p); /* ^X */ outlen = 2; } if (pixel != INVALCOLOR) { #if GTK_CHECK_VERSION(3,0,0) # define DOUBLE2UINT16(val) ((guint16)((val) * 65535 + 0.5)) attr = pango_attr_foreground_new( DOUBLE2UINT16(color.red), DOUBLE2UINT16(color.green), DOUBLE2UINT16(color.blue)); # if PANGO_VERSION_CHECK(1,38,0) attr_alpha = pango_attr_foreground_alpha_new( DOUBLE2UINT16(color.alpha)); # endif # undef DOUBLE2UINT16 #else attr = pango_attr_foreground_new( color.red, color.green, color.blue); #endif attr->start_index = pdest - buf; attr->end_index = pdest - buf + outlen; pango_attr_list_insert(attr_list, attr); #if GTK_CHECK_VERSION(3,0,0) # if PANGO_VERSION_CHECK(1,38,0) attr_alpha->start_index = pdest - buf; attr_alpha->end_index = pdest - buf + outlen; pango_attr_list_insert(attr_list, attr_alpha); # endif #endif } pdest += outlen; p += charlen; } else { do *pdest++ = *p++; while (--charlen != 0); } } } *pdest = NUL; } vim_free(convbuf); gtk_label_set_text(label, (const char *)buf); vim_free(buf); gtk_label_set_attributes(label, attr_list); pango_attr_list_unref(attr_list); } # undef IS_NONPRINTABLE /* * Draw a balloon. */ static void drawBalloon(BalloonEval *beval) { if (beval->msg != NULL) { GtkRequisition requisition; int screen_w; int screen_h; int screen_x; int screen_y; int x; int y; int x_offset = EVAL_OFFSET_X; int y_offset = EVAL_OFFSET_Y; PangoLayout *layout; # if !GTK_CHECK_VERSION(3,22,2) GdkScreen *screen; screen = gtk_widget_get_screen(beval->target); gtk_window_set_screen(GTK_WINDOW(beval->balloonShell), screen); # endif gui_gtk_get_screen_geom_of_win(beval->target, &screen_x, &screen_y, &screen_w, &screen_h); # if !GTK_CHECK_VERSION(3,0,0) gtk_widget_ensure_style(beval->balloonShell); gtk_widget_ensure_style(beval->balloonLabel); # endif set_printable_label_text(GTK_LABEL(beval->balloonLabel), beval->msg); /* * Dirty trick: Enable wrapping mode on the label's layout behind its * back. This way GtkLabel won't try to constrain the wrap width to a * builtin maximum value of about 65 Latin characters. */ layout = gtk_label_get_layout(GTK_LABEL(beval->balloonLabel)); # ifdef PANGO_WRAP_WORD_CHAR pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR); # else pango_layout_set_wrap(layout, PANGO_WRAP_WORD); # endif pango_layout_set_width(layout, /* try to come up with some reasonable width */ PANGO_SCALE * CLAMP(gui.num_cols * gui.char_width, screen_w / 2, MAX(20, screen_w - 20))); /* Calculate the balloon's width and height. */ # if GTK_CHECK_VERSION(3,0,0) gtk_widget_get_preferred_size(beval->balloonShell, &requisition, NULL); # else gtk_widget_size_request(beval->balloonShell, &requisition); # endif /* Compute position of the balloon area */ gdk_window_get_origin(gtk_widget_get_window(beval->target), &x, &y); x += beval->x; y += beval->y; /* Get out of the way of the mouse pointer */ if (x + x_offset + requisition.width > screen_x + screen_w) y_offset += 15; if (y + y_offset + requisition.height > screen_y + screen_h) y_offset = -requisition.height - EVAL_OFFSET_Y; /* Sanitize values */ x = CLAMP(x + x_offset, 0, MAX(0, screen_x + screen_w - requisition.width)); y = CLAMP(y + y_offset, 0, MAX(0, screen_y + screen_h - requisition.height)); /* Show the balloon */ # if GTK_CHECK_VERSION(3,0,0) gtk_window_move(GTK_WINDOW(beval->balloonShell), x, y); # else gtk_widget_set_uposition(beval->balloonShell, x, y); # endif gtk_widget_show(beval->balloonShell); beval->showState = ShS_SHOWING; gui_mch_update(); } } /* * Undraw a balloon. */ static void undrawBalloon(BalloonEval *beval) { if (beval->balloonShell != NULL) gtk_widget_hide(beval->balloonShell); beval->showState = ShS_NEUTRAL; } static void cancelBalloon(BalloonEval *beval) { if (beval->showState == ShS_SHOWING || beval->showState == ShS_UPDATE_PENDING) undrawBalloon(beval); if (beval->timerID != 0) { g_source_remove(beval->timerID); beval->timerID = 0; } beval->showState = ShS_NEUTRAL; } static void createBalloonEvalWindow(BalloonEval *beval) { beval->balloonShell = gtk_window_new(GTK_WINDOW_POPUP); gtk_widget_set_app_paintable(beval->balloonShell, TRUE); gtk_window_set_resizable(GTK_WINDOW(beval->balloonShell), FALSE); gtk_widget_set_name(beval->balloonShell, "gtk-tooltips"); gtk_container_set_border_width(GTK_CONTAINER(beval->balloonShell), 4); # if GTK_CHECK_VERSION(3,0,0) g_signal_connect(G_OBJECT(beval->balloonShell), "draw", G_CALLBACK(balloon_draw_event_cb), NULL); # else gtk_signal_connect((GtkObject*)(beval->balloonShell), "expose_event", GTK_SIGNAL_FUNC(balloon_expose_event_cb), NULL); # endif beval->balloonLabel = gtk_label_new(NULL); gtk_label_set_line_wrap(GTK_LABEL(beval->balloonLabel), FALSE); gtk_label_set_justify(GTK_LABEL(beval->balloonLabel), GTK_JUSTIFY_LEFT); # if GTK_CHECK_VERSION(3,16,0) gtk_label_set_xalign(GTK_LABEL(beval->balloonLabel), 0.5); gtk_label_set_yalign(GTK_LABEL(beval->balloonLabel), 0.5); # elif GTK_CHECK_VERSION(3,14,0) GValue align_val = G_VALUE_INIT; g_value_init(&align_val, G_TYPE_FLOAT); g_value_set_float(&align_val, 0.5); g_object_set_property(G_OBJECT(beval->balloonLabel), "xalign", &align_val); g_object_set_property(G_OBJECT(beval->balloonLabel), "yalign", &align_val); g_value_unset(&align_val); # else gtk_misc_set_alignment(GTK_MISC(beval->balloonLabel), 0.5f, 0.5f); # endif gtk_widget_set_name(beval->balloonLabel, "vim-balloon-label"); gtk_widget_show(beval->balloonLabel); gtk_container_add(GTK_CONTAINER(beval->balloonShell), beval->balloonLabel); } #else /* !FEAT_GUI_GTK */ /* * Draw a balloon. */ static void drawBalloon(BalloonEval *beval) { Dimension w; Dimension h; Position tx; Position ty; if (beval->msg != NULL) { /* Show the Balloon */ /* Calculate the label's width and height */ #ifdef FEAT_GUI_MOTIF XmString s; /* For the callback function we parse NL characters to create a * multi-line label. This doesn't work for all languages, but * XmStringCreateLocalized() doesn't do multi-line labels... */ if (beval->msgCB != NULL) s = XmStringCreateLtoR((char *)beval->msg, XmFONTLIST_DEFAULT_TAG); else s = XmStringCreateLocalized((char *)beval->msg); { XmFontList fl; fl = gui_motif_fontset2fontlist(&gui.tooltip_fontset); if (fl == NULL) { XmStringFree(s); return; } XmStringExtent(fl, s, &w, &h); XmFontListFree(fl); } w += gui.border_offset << 1; h += gui.border_offset << 1; XtVaSetValues(beval->balloonLabel, XmNlabelString, s, NULL); XmStringFree(s); #else /* Athena */ /* Assume XtNinternational == True */ XFontSet fset; XFontSetExtents *ext; XtVaGetValues(beval->balloonLabel, XtNfontSet, &fset, NULL); ext = XExtentsOfFontSet(fset); h = ext->max_ink_extent.height; w = XmbTextEscapement(fset, (char *)beval->msg, (int)STRLEN(beval->msg)); w += gui.border_offset << 1; h += gui.border_offset << 1; XtVaSetValues(beval->balloonLabel, XtNlabel, beval->msg, NULL); #endif /* Compute position of the balloon area */ tx = beval->x_root + EVAL_OFFSET_X; ty = beval->y_root + EVAL_OFFSET_Y; if ((tx + w) > beval->screen_width) tx = beval->screen_width - w; if ((ty + h) > beval->screen_height) ty = beval->screen_height - h; #ifdef FEAT_GUI_MOTIF XtVaSetValues(beval->balloonShell, XmNx, tx, XmNy, ty, NULL); #else /* Athena */ XtVaSetValues(beval->balloonShell, XtNx, tx, XtNy, ty, NULL); #endif /* Set tooltip colors */ { Arg args[2]; #ifdef FEAT_GUI_MOTIF args[0].name = XmNbackground; args[0].value = gui.tooltip_bg_pixel; args[1].name = XmNforeground; args[1].value = gui.tooltip_fg_pixel; #else /* Athena */ args[0].name = XtNbackground; args[0].value = gui.tooltip_bg_pixel; args[1].name = XtNforeground; args[1].value = gui.tooltip_fg_pixel; #endif XtSetValues(beval->balloonLabel, &args[0], XtNumber(args)); } XtPopup(beval->balloonShell, XtGrabNone); beval->showState = ShS_SHOWING; current_beval = beval; } } /* * Undraw a balloon. */ static void undrawBalloon(BalloonEval *beval) { if (beval->balloonShell != (Widget)0) XtPopdown(beval->balloonShell); beval->showState = ShS_NEUTRAL; current_beval = NULL; } static void cancelBalloon(BalloonEval *beval) { if (beval->showState == ShS_SHOWING || beval->showState == ShS_UPDATE_PENDING) undrawBalloon(beval); if (beval->timerID != (XtIntervalId)NULL) { XtRemoveTimeOut(beval->timerID); beval->timerID = (XtIntervalId)NULL; } beval->showState = ShS_NEUTRAL; } static void createBalloonEvalWindow(BalloonEval *beval) { Arg args[12]; int n; n = 0; #ifdef FEAT_GUI_MOTIF XtSetArg(args[n], XmNallowShellResize, True); n++; beval->balloonShell = XtAppCreateShell("balloonEval", "BalloonEval", overrideShellWidgetClass, gui.dpy, args, n); #else /* Athena */ XtSetArg(args[n], XtNallowShellResize, True); n++; beval->balloonShell = XtAppCreateShell("balloonEval", "BalloonEval", overrideShellWidgetClass, gui.dpy, args, n); #endif n = 0; #ifdef FEAT_GUI_MOTIF { XmFontList fl; fl = gui_motif_fontset2fontlist(&gui.tooltip_fontset); XtSetArg(args[n], XmNforeground, gui.tooltip_fg_pixel); n++; XtSetArg(args[n], XmNbackground, gui.tooltip_bg_pixel); n++; XtSetArg(args[n], XmNfontList, fl); n++; XtSetArg(args[n], XmNalignment, XmALIGNMENT_BEGINNING); n++; beval->balloonLabel = XtCreateManagedWidget("balloonLabel", xmLabelWidgetClass, beval->balloonShell, args, n); } #else /* FEAT_GUI_ATHENA */ XtSetArg(args[n], XtNforeground, gui.tooltip_fg_pixel); n++; XtSetArg(args[n], XtNbackground, gui.tooltip_bg_pixel); n++; XtSetArg(args[n], XtNinternational, True); n++; XtSetArg(args[n], XtNfontSet, gui.tooltip_fontset); n++; beval->balloonLabel = XtCreateManagedWidget("balloonLabel", labelWidgetClass, beval->balloonShell, args, n); #endif } #endif /* !FEAT_GUI_GTK */ #endif /* !FEAT_GUI_MSWIN */ #endif /* FEAT_BEVAL_GUI */