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Diffstat (limited to 'src/gui_beval.c')
| -rw-r--r-- | src/gui_beval.c | 1229 |
1 files changed, 1229 insertions, 0 deletions
diff --git a/src/gui_beval.c b/src/gui_beval.c new file mode 100644 index 0000000..57122ff --- /dev/null +++ b/src/gui_beval.c @@ -0,0 +1,1229 @@ +/* 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(curbuf, 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 |