diff options
Diffstat (limited to 'widgets/text/e-text.c')
| -rw-r--r-- | widgets/text/e-text.c | 2391 |
1 files changed, 0 insertions, 2391 deletions
diff --git a/widgets/text/e-text.c b/widgets/text/e-text.c deleted file mode 100644 index bfff8e251a..0000000000 --- a/widgets/text/e-text.c +++ /dev/null @@ -1,2391 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* EText - Text item for evolution. - * Copyright (C) 2000 Helix Code, Inc. - * - * Author: Chris Lahey <clahey@umich.edu> - * - * A majority of code taken from: - * - * Text item type for GnomeCanvas widget - * - * GnomeCanvas is basically a port of the Tk toolkit's most excellent - * canvas widget. Tk is copyrighted by the Regents of the University - * of California, Sun Microsystems, and other parties. - * - * Copyright (C) 1998 The Free Software Foundation - * - * Author: Federico Mena <federico@nuclecu.unam.mx> */ - -#include <config.h> -#include <math.h> -#include <ctype.h> -#include "e-text.h" -#include <gdk/gdkx.h> /* for BlackPixel */ -#include <libart_lgpl/art_affine.h> -#include <libart_lgpl/art_rgb.h> -#include <libart_lgpl/art_rgb_bitmap_affine.h> -#include <gtk/gtkinvisible.h> - -#include "e-text-event-processor-emacs-like.h" - -enum { - E_TEXT_RESIZE, - E_TEXT_CHANGE, - E_TEXT_LAST_SIGNAL -}; - -static guint e_text_signals[E_TEXT_LAST_SIGNAL] = { 0 }; - - - -/* This defines a line of text */ -struct line { - char *text; /* Line's text, it is a pointer into the text->text string */ - int length; /* Line's length in characters */ - int width; /* Line's width in pixels */ - int ellipsis_length; /* Length before adding ellipsis */ -}; - - - -/* Object argument IDs */ -enum { - ARG_0, - ARG_TEXT, - ARG_X, - ARG_Y, - ARG_FONT, - ARG_FONTSET, - ARG_FONT_GDK, - ARG_ANCHOR, - ARG_JUSTIFICATION, - ARG_CLIP_WIDTH, - ARG_CLIP_HEIGHT, - ARG_CLIP, - ARG_X_OFFSET, - ARG_Y_OFFSET, - ARG_FILL_COLOR, - ARG_FILL_COLOR_GDK, - ARG_FILL_COLOR_RGBA, - ARG_FILL_STIPPLE, - ARG_TEXT_WIDTH, - ARG_TEXT_HEIGHT, - ARG_EDITABLE, - ARG_USE_ELLIPSIS, - ARG_ELLIPSIS -}; - - -enum { - E_SELECTION_PRIMARY, - E_SELECTION_CLIPBOARD -}; -enum { - TARGET_STRING, - TARGET_TEXT, - TARGET_COMPOUND_TEXT -}; - -static void e_text_class_init (ETextClass *class); -static void e_text_init (EText *text); -static void e_text_destroy (GtkObject *object); -static void e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id); -static void e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id); - -static void e_text_update (GnomeCanvasItem *item, double *affine, - ArtSVP *clip_path, int flags); -static void e_text_realize (GnomeCanvasItem *item); -static void e_text_unrealize (GnomeCanvasItem *item); -static void e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable, - int x, int y, int width, int height); -static double e_text_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, - GnomeCanvasItem **actual_item); -static void e_text_bounds (GnomeCanvasItem *item, - double *x1, double *y1, double *x2, double *y2); -static void e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf); -static gint e_text_event (GnomeCanvasItem *item, GdkEvent *event); - -static void e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data); - -static guint32 e_text_get_event_time (EText *text); - -static void e_text_get_selection(EText *text, GdkAtom selection, guint32 time); -static void e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length); - -static GtkWidget *e_text_get_invisible(EText *text); -static void _selection_clear_event (GtkInvisible *invisible, - GdkEventSelection *event, - EText *text); -static void _selection_get (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint info, - guint time_stamp, - EText *text); -static void _selection_received (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint time, - EText *text); - -static ETextSuckFont *e_suck_font (GdkFont *font); -static void e_suck_font_free (ETextSuckFont *suckfont); - - -static GnomeCanvasItemClass *parent_class; -static GdkAtom clipboard_atom = GDK_NONE; - - - -/** - * e_text_get_type: - * @void: - * - * Registers the &EText class if necessary, and returns the type ID - * associated to it. - * - * Return value: The type ID of the &EText class. - **/ -GtkType -e_text_get_type (void) -{ - static GtkType text_type = 0; - - if (!text_type) { - GtkTypeInfo text_info = { - "EText", - sizeof (EText), - sizeof (ETextClass), - (GtkClassInitFunc) e_text_class_init, - (GtkObjectInitFunc) e_text_init, - NULL, /* reserved_1 */ - NULL, /* reserved_2 */ - (GtkClassInitFunc) NULL - }; - - text_type = gtk_type_unique (gnome_canvas_item_get_type (), &text_info); - } - - return text_type; -} - -/* Class initialization function for the text item */ -static void -e_text_class_init (ETextClass *klass) -{ - GtkObjectClass *object_class; - GnomeCanvasItemClass *item_class; - - object_class = (GtkObjectClass *) klass; - item_class = (GnomeCanvasItemClass *) klass; - - parent_class = gtk_type_class (gnome_canvas_item_get_type ()); - - e_text_signals[E_TEXT_RESIZE] = - gtk_signal_new ("resize", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (ETextClass, resize), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - - e_text_signals[E_TEXT_CHANGE] = - gtk_signal_new ("change", - GTK_RUN_LAST, - object_class->type, - GTK_SIGNAL_OFFSET (ETextClass, change), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - - gtk_object_class_add_signals (object_class, e_text_signals, E_TEXT_LAST_SIGNAL); - - gtk_object_add_arg_type ("EText::text", - GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT); - gtk_object_add_arg_type ("EText::x", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X); - gtk_object_add_arg_type ("EText::y", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y); - gtk_object_add_arg_type ("EText::font", - GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONT); - gtk_object_add_arg_type ("EText::fontset", - GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONTSET); - gtk_object_add_arg_type ("EText::font_gdk", - GTK_TYPE_GDK_FONT, GTK_ARG_READWRITE, ARG_FONT_GDK); - gtk_object_add_arg_type ("EText::anchor", - GTK_TYPE_ANCHOR_TYPE, GTK_ARG_READWRITE, ARG_ANCHOR); - gtk_object_add_arg_type ("EText::justification", - GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFICATION); - gtk_object_add_arg_type ("EText::clip_width", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_WIDTH); - gtk_object_add_arg_type ("EText::clip_height", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_HEIGHT); - gtk_object_add_arg_type ("EText::clip", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_CLIP); - gtk_object_add_arg_type ("EText::x_offset", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X_OFFSET); - gtk_object_add_arg_type ("EText::y_offset", - GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y_OFFSET); - gtk_object_add_arg_type ("EText::fill_color", - GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FILL_COLOR); - gtk_object_add_arg_type ("EText::fill_color_gdk", - GTK_TYPE_GDK_COLOR, GTK_ARG_READWRITE, ARG_FILL_COLOR_GDK); - gtk_object_add_arg_type ("EText::fill_color_rgba", - GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_FILL_COLOR_RGBA); - gtk_object_add_arg_type ("EText::fill_stipple", - GTK_TYPE_GDK_WINDOW, GTK_ARG_READWRITE, ARG_FILL_STIPPLE); - gtk_object_add_arg_type ("EText::text_width", - GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_WIDTH); - gtk_object_add_arg_type ("EText::text_height", - GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_HEIGHT); - gtk_object_add_arg_type ("EText::editable", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_EDITABLE); - gtk_object_add_arg_type ("EText::use_ellipsis", - GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_USE_ELLIPSIS); - gtk_object_add_arg_type ("EText::ellipsis", - GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_ELLIPSIS); - - if (!clipboard_atom) - clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE); - - - - klass->resize = NULL; - klass->change = NULL; - - object_class->destroy = e_text_destroy; - object_class->set_arg = e_text_set_arg; - object_class->get_arg = e_text_get_arg; - - item_class->update = e_text_update; - item_class->realize = e_text_realize; - item_class->unrealize = e_text_unrealize; - item_class->draw = e_text_draw; - item_class->point = e_text_point; - item_class->bounds = e_text_bounds; - item_class->render = e_text_render; - item_class->event = e_text_event; -} - -/* Object initialization function for the text item */ -static void -e_text_init (EText *text) -{ - text->x = 0.0; - text->y = 0.0; - text->anchor = GTK_ANCHOR_CENTER; - text->justification = GTK_JUSTIFY_LEFT; - text->clip_width = 0.0; - text->clip_height = 0.0; - text->xofs = 0.0; - text->yofs = 0.0; - - text->ellipsis = NULL; - text->use_ellipsis = FALSE; - text->ellipsis_width = 0; - - text->editable = FALSE; - text->editing = FALSE; - text->xofs_edit = 0; - - text->selection_start = 0; - text->selection_end = 0; - text->select_by_word = FALSE; - - text->timeout_id = 0; - text->timer = NULL; - - text->lastx = 0; - text->lasty = 0; - text->last_state = 0; - - text->scroll_start = 0; - text->show_cursor = TRUE; - text->button_down = FALSE; - - text->tep = NULL; - - text->has_selection = FALSE; - - text->invisible = NULL; - text->primary_selection = NULL; - text->primary_length = 0; - text->clipboard_selection = NULL; - text->clipboard_length = 0; - - text->pointer_in = FALSE; - text->default_cursor_shown = TRUE; -} - -/* Destroy handler for the text item */ -static void -e_text_destroy (GtkObject *object) -{ - EText *text; - - g_return_if_fail (object != NULL); - g_return_if_fail (GNOME_IS_CANVAS_TEXT (object)); - - text = E_TEXT (object); - - if (text->text) - g_free (text->text); - - if (text->tep) - gtk_object_unref (GTK_OBJECT(text->tep)); - - if (text->invisible) - gtk_object_unref (GTK_OBJECT(text->invisible)); - - if (text->lines) - g_free (text->lines); - - if (text->font) - gdk_font_unref (text->font); - - if (text->suckfont) - e_suck_font_free (text->suckfont); - - if (text->stipple) - gdk_bitmap_unref (text->stipple); - - if (GTK_OBJECT_CLASS (parent_class)->destroy) - (* GTK_OBJECT_CLASS (parent_class)->destroy) (object); -} - -static void -get_bounds_item_relative (EText *text, double *px1, double *py1, double *px2, double *py2) -{ - GnomeCanvasItem *item; - double x, y; - double clip_x, clip_y; - int old_height; - - item = GNOME_CANVAS_ITEM (text); - - x = text->x; - y = text->y; - - clip_x = x; - clip_y = y; - - /* Calculate text dimensions */ - - old_height = text->height; - - if (text->text && text->font) - text->height = (text->font->ascent + text->font->descent) * text->num_lines; - else - text->height = 0; - - if (old_height != text->height) - gtk_signal_emit_by_name (GTK_OBJECT (text), "resize"); - - /* Anchor text */ - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_W: - case GTK_ANCHOR_SW: - break; - - case GTK_ANCHOR_N: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_S: - x -= text->max_width / 2; - clip_x -= text->clip_width / 2; - break; - - case GTK_ANCHOR_NE: - case GTK_ANCHOR_E: - case GTK_ANCHOR_SE: - x -= text->max_width; - clip_x -= text->clip_width; - break; - } - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_N: - case GTK_ANCHOR_NE: - break; - - case GTK_ANCHOR_W: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_E: - y -= text->height / 2; - clip_y -= text->clip_height / 2; - break; - - case GTK_ANCHOR_SW: - case GTK_ANCHOR_S: - case GTK_ANCHOR_SE: - y -= text->height; - clip_y -= text->clip_height; - break; - } - - /* Bounds */ - - if (text->clip) { - /* maybe do bbox intersection here? */ - *px1 = clip_x; - *py1 = clip_y; - *px2 = clip_x + text->clip_width; - *py2 = clip_y + text->clip_height; - } else { - *px1 = x; - *py1 = y; - *px2 = x + text->max_width; - *py2 = y + text->height; - } -} - -static void -get_bounds (EText *text, double *px1, double *py1, double *px2, double *py2) -{ - GnomeCanvasItem *item; - double wx, wy; - int old_height; - - item = GNOME_CANVAS_ITEM (text); - - /* Get canvas pixel coordinates for text position */ - - wx = text->x; - wy = text->y; - gnome_canvas_item_i2w (item, &wx, &wy); - gnome_canvas_w2c (item->canvas, wx + text->xofs, wy + text->yofs, &text->cx, &text->cy); - - /* Get canvas pixel coordinates for clip rectangle position */ - - gnome_canvas_w2c (item->canvas, wx, wy, &text->clip_cx, &text->clip_cy); - text->clip_cwidth = text->clip_width * item->canvas->pixels_per_unit; - text->clip_cheight = text->clip_height * item->canvas->pixels_per_unit; - - /* Calculate text dimensions */ - - old_height = text->height; - - if (text->text && text->font) - text->height = (text->font->ascent + text->font->descent) * text->num_lines; - else - text->height = 0; - - if (old_height != text->height) - gtk_signal_emit_by_name (GTK_OBJECT (text), "resize"); - - /* Anchor text */ - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_W: - case GTK_ANCHOR_SW: - break; - - case GTK_ANCHOR_N: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_S: - text->cx -= text->max_width / 2; - text->clip_cx -= text->clip_cwidth / 2; - break; - - case GTK_ANCHOR_NE: - case GTK_ANCHOR_E: - case GTK_ANCHOR_SE: - text->cx -= text->max_width; - text->clip_cx -= text->clip_cwidth; - break; - } - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_N: - case GTK_ANCHOR_NE: - break; - - case GTK_ANCHOR_W: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_E: - text->cy -= text->height / 2; - text->clip_cy -= text->clip_cheight / 2; - break; - - case GTK_ANCHOR_SW: - case GTK_ANCHOR_S: - case GTK_ANCHOR_SE: - text->cy -= text->height; - text->clip_cy -= text->clip_cheight; - break; - } - - /* Bounds */ - - if (text->clip) { - *px1 = text->clip_cx; - *py1 = text->clip_cy; - *px2 = text->clip_cx + text->clip_cwidth; - *py2 = text->clip_cy + text->clip_cheight; - } else { - *px1 = text->cx; - *py1 = text->cy; - *px2 = text->cx + text->max_width; - *py2 = text->cy + text->height; - } -} - -/* Recalculates the bounding box of the text item. The bounding box is defined - * by the text's extents if the clip rectangle is disabled. If it is enabled, - * the bounding box is defined by the clip rectangle itself. - */ -static void -recalc_bounds (EText *text) -{ - GnomeCanvasItem *item; - - item = GNOME_CANVAS_ITEM (text); - - get_bounds (text, &item->x1, &item->y1, &item->x2, &item->y2); - - gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item); -} - -static void -calc_ellipsis (EText *text) -{ - if (text->font) - text->ellipsis_width = - gdk_text_width (text->font, - text->ellipsis ? text->ellipsis : "...", - text->ellipsis ? strlen (text->ellipsis) : 3); -} - -/* Calculates the line widths (in pixels) of the text's splitted lines */ -static void -calc_line_widths (EText *text) -{ - struct line *lines; - int i; - int j; - - lines = text->lines; - text->max_width = 0; - - if (!lines) - return; - - for (i = 0; i < text->num_lines; i++) { - if (lines->length != 0) { - if (text->font) { - lines->width = gdk_text_width (text->font, - lines->text, lines->length); - lines->ellipsis_length = 0; - } else { - lines->width = 0; - } - - if (text->clip && - text->use_ellipsis && - ! text->editing && - lines->width > text->clip_width) { - if (text->font) { - lines->ellipsis_length = 0; - for (j = 0; j < lines->length; j++ ) { - if (gdk_text_width (text->font, lines->text, j) + text->ellipsis_width <= text->clip_width) - lines->ellipsis_length = j; - else - break; - } - } - else - lines->ellipsis_length = 0; - lines->width = gdk_text_width (text->font, lines->text, lines->ellipsis_length) + - text->ellipsis_width; - } - else - lines->ellipsis_length = lines->length; - - if (lines->width > text->max_width) - text->max_width = lines->width; - } - - lines++; - } -} - -/* Splits the text of the text item into lines */ -static void -split_into_lines (EText *text) -{ - char *p; - struct line *lines; - int len; - - /* Free old array of lines */ - - if (text->lines) - g_free (text->lines); - - text->lines = NULL; - text->num_lines = 0; - - if (!text->text) - return; - - /* First, count the number of lines */ - - for (p = text->text; *p; p++) - if (*p == '\n') - text->num_lines++; - - text->num_lines++; - - /* Allocate array of lines and calculate split positions */ - - text->lines = lines = g_new0 (struct line, text->num_lines); - len = 0; - - for (p = text->text; *p; p++) { - if (len == 0) - lines->text = p; - if (*p == '\n') { - lines->length = len; - lines++; - len = 0; - } else - len++; - } - - if (len == 0) - lines->text = p; - lines->length = len; - - calc_line_widths (text); -} - -/* Convenience function to set the text's GC's foreground color */ -static void -set_text_gc_foreground (EText *text) -{ - GdkColor c; - - if (!text->gc) - return; - - c.pixel = text->pixel; - gdk_gc_set_foreground (text->gc, &c); -} - -/* Sets the stipple pattern for the text */ -static void -set_stipple (EText *text, GdkBitmap *stipple, int reconfigure) -{ - if (text->stipple && !reconfigure) - gdk_bitmap_unref (text->stipple); - - text->stipple = stipple; - if (stipple && !reconfigure) - gdk_bitmap_ref (stipple); - - if (text->gc) { - if (stipple) { - gdk_gc_set_stipple (text->gc, stipple); - gdk_gc_set_fill (text->gc, GDK_STIPPLED); - } else - gdk_gc_set_fill (text->gc, GDK_SOLID); - } -} - -/* Set_arg handler for the text item */ -static void -e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - GnomeCanvasItem *item; - EText *text; - GdkColor color = { 0, 0, 0, 0, }; - GdkColor *pcolor; - gboolean color_changed; - int have_pixel; - - item = GNOME_CANVAS_ITEM (object); - text = E_TEXT (object); - - color_changed = FALSE; - have_pixel = FALSE; - - switch (arg_id) { - case ARG_TEXT: - if (text->text) - g_free (text->text); - - text->text = g_strdup (GTK_VALUE_STRING (*arg)); - split_into_lines (text); - recalc_bounds (text); - break; - - case ARG_X: - text->x = GTK_VALUE_DOUBLE (*arg); - recalc_bounds (text); - break; - - case ARG_Y: - text->y = GTK_VALUE_DOUBLE (*arg); - recalc_bounds (text); - break; - - case ARG_FONT: - if (text->font) - gdk_font_unref (text->font); - - text->font = gdk_font_load (GTK_VALUE_STRING (*arg)); - - if (item->canvas->aa) { - if (text->suckfont) - e_suck_font_free (text->suckfont); - - text->suckfont = e_suck_font (text->font); - } - - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_FONTSET: - if (text->font) - gdk_font_unref (text->font); - - text->font = gdk_fontset_load (GTK_VALUE_STRING (*arg)); - - if (item->canvas->aa) { - if (text->suckfont) - e_suck_font_free (text->suckfont); - - text->suckfont = e_suck_font (text->font); - } - - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_FONT_GDK: - if (text->font) - gdk_font_unref (text->font); - - text->font = GTK_VALUE_BOXED (*arg); - gdk_font_ref (text->font); - - if (item->canvas->aa) { - if (text->suckfont) - e_suck_font_free (text->suckfont); - - text->suckfont = e_suck_font (text->font); - } - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_ANCHOR: - text->anchor = GTK_VALUE_ENUM (*arg); - recalc_bounds (text); - break; - - case ARG_JUSTIFICATION: - text->justification = GTK_VALUE_ENUM (*arg); - break; - - case ARG_CLIP_WIDTH: - text->clip_width = fabs (GTK_VALUE_DOUBLE (*arg)); - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_CLIP_HEIGHT: - text->clip_height = fabs (GTK_VALUE_DOUBLE (*arg)); - recalc_bounds (text); - break; - - case ARG_CLIP: - text->clip = GTK_VALUE_BOOL (*arg); - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_X_OFFSET: - text->xofs = GTK_VALUE_DOUBLE (*arg); - recalc_bounds (text); - break; - - case ARG_Y_OFFSET: - text->yofs = GTK_VALUE_DOUBLE (*arg); - recalc_bounds (text); - break; - - case ARG_FILL_COLOR: - if (GTK_VALUE_STRING (*arg)) - gdk_color_parse (GTK_VALUE_STRING (*arg), &color); - - text->rgba = ((color.red & 0xff00) << 16 | - (color.green & 0xff00) << 8 | - (color.blue & 0xff00) | - 0xff); - color_changed = TRUE; - break; - - case ARG_FILL_COLOR_GDK: - pcolor = GTK_VALUE_BOXED (*arg); - if (pcolor) { - color = *pcolor; - gdk_color_context_query_color (item->canvas->cc, &color); - have_pixel = TRUE; - } - - text->rgba = ((color.red & 0xff00) << 16 | - (color.green & 0xff00) << 8 | - (color.blue & 0xff00) | - 0xff); - color_changed = TRUE; - break; - - case ARG_FILL_COLOR_RGBA: - text->rgba = GTK_VALUE_UINT (*arg); - color_changed = TRUE; - break; - - case ARG_FILL_STIPPLE: - set_stipple (text, GTK_VALUE_BOXED (*arg), FALSE); - break; - - case ARG_EDITABLE: - text->editable = GTK_VALUE_BOOL (*arg); - break; - - case ARG_USE_ELLIPSIS: - text->use_ellipsis = GTK_VALUE_BOOL (*arg); - calc_line_widths (text); - recalc_bounds (text); - break; - - case ARG_ELLIPSIS: - if (text->ellipsis) - g_free (text->ellipsis); - - text->ellipsis = g_strdup (GTK_VALUE_STRING (*arg)); - calc_ellipsis (text); - calc_line_widths (text); - recalc_bounds (text); - break; - - default: - break; - } - - if (color_changed) { - if (have_pixel) - text->pixel = color.pixel; - else - text->pixel = gnome_canvas_get_color_pixel (item->canvas, text->rgba); - - if (!item->canvas->aa) - set_text_gc_foreground (text); - - gnome_canvas_item_request_update (item); - } -} - -/* Get_arg handler for the text item */ -static void -e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - EText *text; - GdkColor *color; - - text = E_TEXT (object); - - switch (arg_id) { - case ARG_TEXT: - GTK_VALUE_STRING (*arg) = g_strdup (text->text); - break; - - case ARG_X: - GTK_VALUE_DOUBLE (*arg) = text->x; - break; - - case ARG_Y: - GTK_VALUE_DOUBLE (*arg) = text->y; - break; - - case ARG_FONT_GDK: - GTK_VALUE_BOXED (*arg) = text->font; - break; - - case ARG_ANCHOR: - GTK_VALUE_ENUM (*arg) = text->anchor; - break; - - case ARG_JUSTIFICATION: - GTK_VALUE_ENUM (*arg) = text->justification; - break; - - case ARG_CLIP_WIDTH: - GTK_VALUE_DOUBLE (*arg) = text->clip_width; - break; - - case ARG_CLIP_HEIGHT: - GTK_VALUE_DOUBLE (*arg) = text->clip_height; - break; - - case ARG_CLIP: - GTK_VALUE_BOOL (*arg) = text->clip; - break; - - case ARG_X_OFFSET: - GTK_VALUE_DOUBLE (*arg) = text->xofs; - break; - - case ARG_Y_OFFSET: - GTK_VALUE_DOUBLE (*arg) = text->yofs; - break; - - case ARG_FILL_COLOR_GDK: - color = g_new (GdkColor, 1); - color->pixel = text->pixel; - gdk_color_context_query_color (text->item.canvas->cc, color); - GTK_VALUE_BOXED (*arg) = color; - break; - - case ARG_FILL_COLOR_RGBA: - GTK_VALUE_UINT (*arg) = text->rgba; - break; - - case ARG_FILL_STIPPLE: - GTK_VALUE_BOXED (*arg) = text->stipple; - break; - - case ARG_TEXT_WIDTH: - GTK_VALUE_DOUBLE (*arg) = text->max_width / text->item.canvas->pixels_per_unit; - break; - - case ARG_TEXT_HEIGHT: - GTK_VALUE_DOUBLE (*arg) = text->height / text->item.canvas->pixels_per_unit; - break; - - case ARG_EDITABLE: - GTK_VALUE_BOOL (*arg) = text->editable; - break; - - case ARG_USE_ELLIPSIS: - GTK_VALUE_BOOL (*arg) = text->use_ellipsis; - break; - - case ARG_ELLIPSIS: - GTK_VALUE_STRING (*arg) = g_strdup (text->ellipsis); - break; - - default: - arg->type = GTK_TYPE_INVALID; - break; - } -} - -/* Update handler for the text item */ -static void -e_text_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags) -{ - EText *text; - double x1, y1, x2, y2; - ArtDRect i_bbox, c_bbox; - int i; - - text = E_TEXT (item); - - if (parent_class->update) - (* parent_class->update) (item, affine, clip_path, flags); - - if (!item->canvas->aa) { - set_text_gc_foreground (text); - set_stipple (text, text->stipple, TRUE); - get_bounds (text, &x1, &y1, &x2, &y2); - - gnome_canvas_update_bbox (item, x1, y1, x2, y2); - } else { - /* aa rendering */ - for (i = 0; i < 6; i++) - text->affine[i] = affine[i]; - get_bounds_item_relative (text, &i_bbox.x0, &i_bbox.y0, &i_bbox.x1, &i_bbox.y1); - art_drect_affine_transform (&c_bbox, &i_bbox, affine); - gnome_canvas_update_bbox (item, c_bbox.x0, c_bbox.y0, c_bbox.x1, c_bbox.y1); - - } -} - -/* Realize handler for the text item */ -static void -e_text_realize (GnomeCanvasItem *item) -{ - EText *text; - - text = E_TEXT (item); - - if (parent_class->realize) - (* parent_class->realize) (item); - - text->gc = gdk_gc_new (item->canvas->layout.bin_window); - - text->i_cursor = gdk_cursor_new (GDK_XTERM); - text->default_cursor = gdk_cursor_new (GDK_LEFT_PTR); -} - -/* Unrealize handler for the text item */ -static void -e_text_unrealize (GnomeCanvasItem *item) -{ - EText *text; - - text = E_TEXT (item); - - gdk_gc_unref (text->gc); - text->gc = NULL; - - gdk_cursor_destroy (text->i_cursor); - gdk_cursor_destroy (text->default_cursor); - - if (parent_class->unrealize) - (* parent_class->unrealize) (item); -} - -/* Calculates the x position of the specified line of text, based on the text's justification */ -static double -get_line_xpos_item_relative (EText *text, struct line *line) -{ - double x; - - x = text->x; - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_W: - case GTK_ANCHOR_SW: - break; - - case GTK_ANCHOR_N: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_S: - x -= text->max_width / 2; - break; - - case GTK_ANCHOR_NE: - case GTK_ANCHOR_E: - case GTK_ANCHOR_SE: - x -= text->max_width; - break; - } - - switch (text->justification) { - case GTK_JUSTIFY_RIGHT: - x += text->max_width - line->width; - break; - - case GTK_JUSTIFY_CENTER: - x += (text->max_width - line->width) * 0.5; - break; - - default: - /* For GTK_JUSTIFY_LEFT, we don't have to do anything. We do not support - * GTK_JUSTIFY_FILL, yet. - */ - break; - } - - return x; -} - -/* Calculates the y position of the first line of text. */ -static double -get_line_ypos_item_relative (EText *text) -{ - double y; - - y = text->y; - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_N: - case GTK_ANCHOR_NE: - break; - - case GTK_ANCHOR_W: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_E: - y -= text->height / 2; - break; - - case GTK_ANCHOR_SW: - case GTK_ANCHOR_S: - case GTK_ANCHOR_SE: - y -= text->height; - break; - } - - return y; -} - -/* Calculates the x position of the specified line of text, based on the text's justification */ -static int -get_line_xpos (EText *text, struct line *line) -{ - int x; - - x = text->cx; - - switch (text->justification) { - case GTK_JUSTIFY_RIGHT: - x += text->max_width - line->width; - break; - - case GTK_JUSTIFY_CENTER: - x += (text->max_width - line->width) / 2; - break; - - default: - /* For GTK_JUSTIFY_LEFT, we don't have to do anything. We do not support - * GTK_JUSTIFY_FILL, yet. - */ - break; - } - - return x; -} - -static void -_get_tep(EText *text) -{ - if (!text->tep) { - text->tep = e_text_event_processor_emacs_like_new(); - gtk_object_ref (GTK_OBJECT (text->tep)); - gtk_object_sink (GTK_OBJECT (text->tep)); - gtk_signal_connect(GTK_OBJECT(text->tep), - "command", - GTK_SIGNAL_FUNC(e_text_command), - (gpointer) text); - } -} - -/* Draw handler for the text item */ -static void -e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable, - int x, int y, int width, int height) -{ - EText *text; - GdkRectangle rect, *clip_rect; - struct line *lines; - int i; - int xpos, ypos; - int start_char, end_char; - int sel_start, sel_end; - GdkRectangle sel_rect; - GdkGC *fg_gc; - GnomeCanvas *canvas; - - text = E_TEXT (item); - canvas = GNOME_CANVAS_ITEM(text)->canvas; - - fg_gc = GTK_WIDGET(canvas)->style->fg_gc[text->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE]; - - if (!text->text || !text->font) - return; - - clip_rect = NULL; - if (text->clip) { - rect.x = text->clip_cx - x; - rect.y = text->clip_cy - y; - rect.width = text->clip_cwidth; - rect.height = text->clip_cheight; - - gdk_gc_set_clip_rectangle (text->gc, &rect); - gdk_gc_set_clip_rectangle (fg_gc, &rect); - clip_rect = ▭ - } - lines = text->lines; - ypos = text->cy + text->font->ascent; - - if (text->stipple) - gnome_canvas_set_stipple_origin (item->canvas, text->gc); - - for (i = 0; i < text->num_lines; i++) { - if (lines->length != 0) { - xpos = get_line_xpos (text, lines); - if (text->editing) { - xpos -= text->xofs_edit; - start_char = lines->text - text->text; - end_char = start_char + lines->length; - sel_start = text->selection_start; - sel_end = text->selection_end; - if (sel_start > sel_end ) { - sel_start ^= sel_end; - sel_end ^= sel_start; - sel_start ^= sel_end; - } - if ( sel_start < start_char ) - sel_start = start_char; - if ( sel_end > end_char ) - sel_end = end_char; - if ( sel_start < sel_end ) { - sel_rect.x = xpos - x + gdk_text_width (text->font, - lines->text, - sel_start - start_char); - sel_rect.y = ypos - y - text->font->ascent; - sel_rect.width = gdk_text_width (text->font, - lines->text + sel_start - start_char, - sel_end - sel_start); - sel_rect.height = text->font->ascent + text->font->descent; - gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style, - drawable, - text->has_selection ? - GTK_STATE_SELECTED : - GTK_STATE_ACTIVE, - GTK_SHADOW_NONE, - clip_rect, - GTK_WIDGET(item->canvas), - "text", - sel_rect.x, - sel_rect.y, - sel_rect.width, - sel_rect.height); - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x, - ypos - y, - lines->text, - sel_start - start_char); - gdk_draw_text (drawable, - text->font, - fg_gc, - xpos - x + gdk_text_width (text->font, - lines->text, - sel_start - start_char), - ypos - y, - lines->text + sel_start - start_char, - sel_end - sel_start); - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x + gdk_text_width (text->font, - lines->text, - sel_end - start_char), - ypos - y, - lines->text + sel_end - start_char, - end_char - sel_end); - } else { - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x, - ypos - y, - lines->text, - lines->length); - } - if (text->selection_start == text->selection_end && - text->selection_start >= start_char && - text->selection_start <= end_char && - text->show_cursor) { - gdk_draw_rectangle (drawable, - text->gc, - TRUE, - xpos - x + gdk_text_width (text->font, - lines->text, - sel_start - start_char), - ypos - y - text->font->ascent, - 1, - text->font->ascent + text->font->descent); - } - } else { - if ( text->clip && text->use_ellipsis && lines->ellipsis_length < lines->length) { - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x, - ypos - y, - lines->text, - lines->ellipsis_length); - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x + - lines->width - text->ellipsis_width, - ypos - y, - text->ellipsis ? text->ellipsis : "...", - text->ellipsis ? strlen (text->ellipsis) : 3); - } else - - gdk_draw_text (drawable, - text->font, - text->gc, - xpos - x, - ypos - y, - lines->text, - lines->length); - } - } - - ypos += text->font->ascent + text->font->descent; - lines++; - } - - if (text->clip) { - gdk_gc_set_clip_rectangle (text->gc, NULL); - gdk_gc_set_clip_rectangle (fg_gc, NULL); - } -} - -/* Render handler for the text item */ -static void -e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf) -{ - EText *text; - guint32 fg_color; - double xpos, ypos; - struct line *lines; - int i, j; - double affine[6]; - ETextSuckFont *suckfont; - int dx, dy; - ArtPoint start_i, start_c; - - text = E_TEXT (item); - - if (!text->text || !text->font || !text->suckfont) - return; - - suckfont = text->suckfont; - - fg_color = text->rgba; - - gnome_canvas_buf_ensure_buf (buf); - - lines = text->lines; - start_i.y = get_line_ypos_item_relative (text); - - art_affine_scale (affine, item->canvas->pixels_per_unit, item->canvas->pixels_per_unit); - for (i = 0; i < 6; i++) - affine[i] = text->affine[i]; - - for (i = 0; i < text->num_lines; i++) { - if (lines->length != 0) { - start_i.x = get_line_xpos_item_relative (text, lines); - art_affine_point (&start_c, &start_i, text->affine); - xpos = start_c.x; - ypos = start_c.y; - - for (j = 0; j < lines->length; j++) { - ETextSuckChar *ch; - - ch = &suckfont->chars[(unsigned char)((lines->text)[j])]; - - affine[4] = xpos; - affine[5] = ypos; - art_rgb_bitmap_affine ( - buf->buf, - buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1, - buf->buf_rowstride, - suckfont->bitmap + (ch->bitmap_offset >> 3), - ch->width, - suckfont->bitmap_height, - suckfont->bitmap_width >> 3, - fg_color, - affine, - ART_FILTER_NEAREST, NULL); - - dx = ch->left_sb + ch->width + ch->right_sb; - xpos += dx * affine[0]; - ypos += dx * affine[1]; - } - } - - dy = text->font->ascent + text->font->descent; - start_i.y += dy; - lines++; - } - - buf->is_bg = 0; -} - -/* Point handler for the text item */ -static double -e_text_point (GnomeCanvasItem *item, double x, double y, - int cx, int cy, GnomeCanvasItem **actual_item) -{ - EText *text; - int i; - struct line *lines; - int x1, y1, x2, y2; - int font_height; - int dx, dy; - double dist, best; - - text = E_TEXT (item); - - *actual_item = item; - - /* The idea is to build bounding rectangles for each of the lines of - * text (clipped by the clipping rectangle, if it is activated) and see - * whether the point is inside any of these. If it is, we are done. - * Otherwise, calculate the distance to the nearest rectangle. - */ - - if (text->font) - font_height = text->font->ascent + text->font->descent; - else - font_height = 0; - - best = 1.0e36; - - lines = text->lines; - - for (i = 0; i < text->num_lines; i++) { - /* Compute the coordinates of rectangle for the current line, - * clipping if appropriate. - */ - - x1 = get_line_xpos (text, lines); - y1 = text->cy + i * font_height; - x2 = x1 + lines->width; - y2 = y1 + font_height; - - if (text->clip) { - if (x1 < text->clip_cx) - x1 = text->clip_cx; - - if (y1 < text->clip_cy) - y1 = text->clip_cy; - - if (x2 > (text->clip_cx + text->clip_width)) - x2 = text->clip_cx + text->clip_width; - - if (y2 > (text->clip_cy + text->clip_height)) - y2 = text->clip_cy + text->clip_height; - - if ((x1 >= x2) || (y1 >= y2)) - continue; - } - - /* Calculate distance from point to rectangle */ - - if (cx < x1) - dx = x1 - cx; - else if (cx >= x2) - dx = cx - x2 + 1; - else - dx = 0; - - if (cy < y1) - dy = y1 - cy; - else if (cy >= y2) - dy = cy - y2 + 1; - else - dy = 0; - - if ((dx == 0) && (dy == 0)) - return 0.0; - - dist = sqrt (dx * dx + dy * dy); - if (dist < best) - best = dist; - - /* Next! */ - - lines++; - } - - return best / item->canvas->pixels_per_unit; -} - -/* Bounds handler for the text item */ -static void -e_text_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2) -{ - EText *text; - double width, height; - - text = E_TEXT (item); - - *x1 = text->x; - *y1 = text->y; - - if (text->clip) { - width = text->clip_width; - height = text->clip_height; - } else { - width = text->max_width / item->canvas->pixels_per_unit; - height = text->height / item->canvas->pixels_per_unit; - } - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_W: - case GTK_ANCHOR_SW: - break; - - case GTK_ANCHOR_N: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_S: - *x1 -= width / 2.0; - break; - - case GTK_ANCHOR_NE: - case GTK_ANCHOR_E: - case GTK_ANCHOR_SE: - *x1 -= width; - break; - } - - switch (text->anchor) { - case GTK_ANCHOR_NW: - case GTK_ANCHOR_N: - case GTK_ANCHOR_NE: - break; - - case GTK_ANCHOR_W: - case GTK_ANCHOR_CENTER: - case GTK_ANCHOR_E: - *y1 -= height / 2.0; - break; - - case GTK_ANCHOR_SW: - case GTK_ANCHOR_S: - case GTK_ANCHOR_SE: - *y1 -= height; - break; - } - - *x2 = *x1 + width; - *y2 = *y1 + height; -} - -static void -_get_xy_from_position (EText *text, gint position, gint *xp, gint *yp) -{ - if (xp || yp) { - struct line *lines; - int x, y; - int j; - x = get_line_xpos (text, lines); - y = text->cy; - for (j = 0, lines = text->lines; j < text->num_lines; lines++, j++) { - if (lines->text > text->text + position) - break; - y += text->font->ascent + text->font->descent; - } - lines --; - y -= text->font->descent; - - x += gdk_text_width (text->font, - lines->text, - position - (lines->text - text->text)); - x -= text->xofs_edit; - if (xp) - *xp = x; - if (yp) - *yp = y; - } -} - -static gint -_get_position_from_xy (EText *text, gint x, gint y) -{ - int i, j; - int ypos = text->cy; - int xpos; - struct line *lines; - j = 0; - while (y > ypos) { - ypos += text->font->ascent + text->font->descent; - j ++; - } - j--; - if (j >= text->num_lines) - j = text->num_lines - 1; - if (j < 0) - j = 0; - i = 0; - lines = text->lines; - lines += j; - x += text->xofs_edit; - xpos = get_line_xpos (text, lines); - for(i = 0; i < lines->length; i++) { - int charwidth = gdk_text_width(text->font, - lines->text + i, - 1); - xpos += charwidth / 2; - if (xpos > x) { - break; - } - xpos += (charwidth + 1) / 2; - } - return lines->text + i - text->text; -} - -#define SCROLL_WAIT_TIME 30000 - -static gboolean -_blink_scroll_timeout (gpointer data) -{ - EText *text = E_TEXT(data); - gulong current_time; - gboolean scroll = FALSE; - gboolean redraw = FALSE; - - g_timer_elapsed(text->timer, ¤t_time); - - if (text->scroll_start + SCROLL_WAIT_TIME > 1000000) { - if (current_time > text->scroll_start - (1000000 - SCROLL_WAIT_TIME) && - current_time < text->scroll_start) - scroll = TRUE; - } else { - if (current_time > text->scroll_start + SCROLL_WAIT_TIME || - current_time < text->scroll_start) - scroll = TRUE; - } - if (scroll && text->button_down) { - if (text->lastx - text->clip_cx > text->clip_cwidth && - text->xofs_edit < text->max_width - text->clip_cwidth) { - text->xofs_edit += 4; - if (text->xofs_edit > text->max_width - text->clip_cwidth + 1) - text->xofs_edit = text->max_width - text->clip_cwidth + 1; - redraw = TRUE; - } - if (text->lastx - text->clip_cx < 0 && - text->xofs_edit > 0) { - text->xofs_edit -= 4; - if (text->xofs_edit < 0) - text->xofs_edit = 0; - redraw = TRUE; - } - if (redraw) { - ETextEventProcessorEvent e_tep_event; - e_tep_event.type = GDK_MOTION_NOTIFY; - e_tep_event.motion.state = text->last_state; - e_tep_event.motion.time = 0; - e_tep_event.motion.position = _get_position_from_xy(text, text->lastx, text->lasty); - _get_tep(text); - e_text_event_processor_handle_event (text->tep, - &e_tep_event); - text->scroll_start = current_time; - } - } - - if (!((current_time / 500000) % 2)) { - if (!text->show_cursor) - redraw = TRUE; - text->show_cursor = TRUE; - } else { - if (text->show_cursor) - redraw = TRUE; - text->show_cursor = FALSE; - } - if (redraw) - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text)); - return TRUE; -} - -static gint -e_text_event (GnomeCanvasItem *item, GdkEvent *event) -{ - EText *text = E_TEXT(item); - ETextEventProcessorEvent e_tep_event; - - gint return_val = 0; - - e_tep_event.type = event->type; - switch (event->type) { - case GDK_FOCUS_CHANGE: - if (text->editable) { - GdkEventFocus *focus_event; - focus_event = (GdkEventFocus *) event; - if (focus_event->in) { - if(!text->editing) { - text->editing = TRUE; - if ( text->pointer_in ) { - if ( text->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->i_cursor); - text->default_cursor_shown = FALSE; - } - } - text->selection_start = 0; - text->selection_end = 0; - text->select_by_word = FALSE; - text->xofs_edit = 0; - if (text->timeout_id == 0) - text->timeout_id = g_timeout_add(10, _blink_scroll_timeout, text); - text->timer = g_timer_new(); - g_timer_elapsed(text->timer, &(text->scroll_start)); - g_timer_start(text->timer); - } - } else { - text->editing = FALSE; - if ( ! text->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->default_cursor); - text->default_cursor_shown = TRUE; - } - if (text->timeout_id) { - g_source_remove(text->timeout_id); - text->timeout_id = 0; - } - if (text->timer) { - g_timer_stop(text->timer); - g_timer_destroy(text->timer); - text->timer = NULL; - } - } - calc_line_widths (text); - } - return_val = 0; - break; - case GDK_KEY_PRESS: /* Fall Through */ - case GDK_KEY_RELEASE: - if (text->editing) { - GdkEventKey key = event->key; - e_tep_event.key.time = key.time; - e_tep_event.key.state = key.state; - e_tep_event.key.keyval = key.keyval; - e_tep_event.key.length = key.length; - e_tep_event.key.string = key.string; - _get_tep(text); - return e_text_event_processor_handle_event (text->tep, - &e_tep_event); - } - else - return 0; - break; - case GDK_BUTTON_PRESS: /* Fall Through */ - case GDK_BUTTON_RELEASE: - if (text->editing) { - GdkEventButton button = event->button; - e_tep_event.button.time = button.time; - e_tep_event.button.state = button.state; - e_tep_event.button.button = button.button; - e_tep_event.button.position = _get_position_from_xy(text, button.x, button.y); - _get_tep(text); - return_val = e_text_event_processor_handle_event (text->tep, - &e_tep_event); - if (event->button.button == 1) { - if (event->type == GDK_BUTTON_PRESS) - text->button_down = TRUE; - else - text->button_down = FALSE; - } - text->lastx = button.x; - text->lasty = button.y; - text->last_state = button.state; - } else if (text->editable && event->type == GDK_BUTTON_RELEASE && event->button.button == 1) { - gnome_canvas_item_grab_focus (item); - return 1; - } - break; - case GDK_MOTION_NOTIFY: - if (text->editing) { - GdkEventMotion motion = event->motion; - e_tep_event.motion.time = motion.time; - e_tep_event.motion.state = motion.state; - e_tep_event.motion.position = _get_position_from_xy(text, motion.x, motion.y); - _get_tep(text); - return_val = e_text_event_processor_handle_event (text->tep, - &e_tep_event); - text->lastx = motion.x; - text->lasty = motion.y; - text->last_state = motion.state; - } - break; - case GDK_ENTER_NOTIFY: - text->pointer_in = TRUE; - if (text->editing) { - if ( text->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->i_cursor); - text->default_cursor_shown = FALSE; - } - } - break; - case GDK_LEAVE_NOTIFY: - text->pointer_in = FALSE; - if (text->editing) { - if ( ! text->default_cursor_shown ) { - gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->default_cursor); - text->default_cursor_shown = TRUE; - } - } - break; - default: - break; - } - if (return_val) - return return_val; - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event) - return GNOME_CANVAS_ITEM_CLASS(parent_class)->event(item, event); - else - return 0; -} - -static int -_get_position(EText *text, ETextEventProcessorCommand *command) -{ - int i; - int length; - int x, y; - - switch (command->position) { - - case E_TEP_VALUE: - return command->value; - - case E_TEP_SELECTION: - return text->selection_end; - - case E_TEP_START_OF_BUFFER: - return 0; - case E_TEP_END_OF_BUFFER: - return strlen(text->text); - - case E_TEP_START_OF_LINE: - for (i = text->selection_end - 2; i > 0; i--) - if (text->text[i] == '\n') { - i++; - break; - } - return i; - case E_TEP_END_OF_LINE: - length = strlen(text->text); - for (i = text->selection_end + 1; i < length; i++) - if (text->text[i] == '\n') { - break; - } - if (i > length) - i = length; - return i; - - case E_TEP_FORWARD_CHARACTER: - length = strlen(text->text); - i = text->selection_end + 1; - if (i > length) - i = length; - return i; - case E_TEP_BACKWARD_CHARACTER: - i = text->selection_end - 1; - if (i < 0) - i = 0; - return i; - - case E_TEP_FORWARD_WORD: - length = strlen(text->text); - for (i = text->selection_end + 1; i < length; i++) - if (isspace(text->text[i])) { - break; - } - if (i > length) - i = length; - return i; - case E_TEP_BACKWARD_WORD: - for (i = text->selection_end - 2; i > 0; i--) - if (isspace(text->text[i])) { - i++; - break; - } - if (i < 0) - i = 0; - return i; - - case E_TEP_FORWARD_LINE: - _get_xy_from_position(text, text->selection_end, &x, &y); - y += text->font->ascent + text->font->descent; - return _get_position_from_xy(text, x, y); - case E_TEP_BACKWARD_LINE: - _get_xy_from_position(text, text->selection_end, &x, &y); - y -= text->font->ascent + text->font->descent; - return _get_position_from_xy(text, x, y); - - case E_TEP_FORWARD_PARAGRAPH: - case E_TEP_BACKWARD_PARAGRAPH: - - case E_TEP_FORWARD_PAGE: - case E_TEP_BACKWARD_PAGE: - return text->selection_end; - default: - return text->selection_end; - } -} - -static void -_delete_selection(EText *text) -{ - gint length = strlen(text->text); - if (text->selection_end == text->selection_start) - return; - if (text->selection_end < text->selection_start) { - text->selection_end ^= text->selection_start; - text->selection_start ^= text->selection_end; - text->selection_end ^= text->selection_start; - } - memmove( text->text + text->selection_start, - text->text + text->selection_end, - length - text->selection_end + 1 ); - length -= text->selection_end - text->selection_start; - text->selection_end = text->selection_start; -} - -static void -_insert(EText *text, char *string, int value) -{ - if (value > 0) { - char *temp; - gint length = strlen(text->text); - temp = g_new(gchar, length + value + 1); - strncpy(temp, text->text, text->selection_start); - strncpy(temp + text->selection_start, string, value); - strcpy(temp + text->selection_start + value, text->text + text->selection_start); - g_free(text->text); - text->text = temp; - text->selection_start += value; - text->selection_end = text->selection_start; - } -} - -static void -e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data) -{ - EText *text = E_TEXT(data); - int sel_start, sel_end; - switch (command->action) { - case E_TEP_MOVE: - text->selection_start = _get_position(text, command); - text->selection_end = text->selection_start; - if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_SELECT: - text->selection_end = _get_position(text, command); - sel_start = MIN(text->selection_start, text->selection_end); - sel_end = MAX(text->selection_start, text->selection_end); - if (sel_start != sel_end) { - e_text_supply_selection (text, command->time, GDK_SELECTION_PRIMARY, text->text + sel_start, sel_end - sel_start); - } else if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_DELETE: - if (text->selection_end == text->selection_start) { - text->selection_end = _get_position(text, command); - } - _delete_selection(text); - split_into_lines (text); - recalc_bounds (text); - if (text->timer) { - g_timer_reset(text->timer); - } - break; - - case E_TEP_INSERT: - if (text->selection_end != text->selection_start) { - _delete_selection(text); - } - _insert(text, command->string, command->value); - split_into_lines (text); - recalc_bounds (text); - if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_COPY: - sel_start = MIN(text->selection_start, text->selection_end); - sel_end = MAX(text->selection_start, text->selection_end); - if (sel_start != sel_end) { - e_text_supply_selection (text, command->time, clipboard_atom, text->text + sel_start, sel_end - sel_start); - } - if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_PASTE: - e_text_get_selection (text, clipboard_atom, command->time); - if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_GET_SELECTION: - e_text_get_selection (text, GDK_SELECTION_PRIMARY, command->time); - break; - case E_TEP_ACTIVATE: - if (text->timer) { - g_timer_reset(text->timer); - } - break; - case E_TEP_SET_SELECT_BY_WORD: - text->select_by_word = command->value; - break; - case E_TEP_GRAB: - gnome_canvas_item_grab (GNOME_CANVAS_ITEM(text), - GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, - text->i_cursor, - command->time); - break; - case E_TEP_UNGRAB: - gnome_canvas_item_ungrab (GNOME_CANVAS_ITEM(text), command->time); - break; - case E_TEP_NOP: - break; - } - - if (!text->button_down) { - int x; - int i; - struct line *lines = text->lines; - for (lines = text->lines, i = 0; i < text->num_lines ; i++, lines ++) { - if (lines->text - text->text > text->selection_end) { - break; - } - } - lines --; - x = gdk_text_width(text->font, - lines->text, - text->selection_end - (lines->text - text->text)); - - - if (x < text->xofs_edit) { - text->xofs_edit = x; - } - - if (2 + x - text->clip_width > text->xofs_edit) { - text->xofs_edit = 2 + x - text->clip_width; - } - } - - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text)); -} - -static void _invisible_destroy (GtkInvisible *invisible, - EText *text) -{ - text->invisible = NULL; -} - -static GtkWidget *e_text_get_invisible(EText *text) -{ - GtkWidget *invisible; - if (text->invisible) { - invisible = text->invisible; - } else { - invisible = gtk_invisible_new(); - text->invisible = invisible; - - gtk_selection_add_target (invisible, - GDK_SELECTION_PRIMARY, - GDK_SELECTION_TYPE_STRING, - E_SELECTION_PRIMARY); - gtk_selection_add_target (invisible, - clipboard_atom, - GDK_SELECTION_TYPE_STRING, - E_SELECTION_CLIPBOARD); - - gtk_signal_connect (GTK_OBJECT(invisible), "selection_get", - GTK_SIGNAL_FUNC (_selection_get), - text); - gtk_signal_connect (GTK_OBJECT(invisible), "selection_clear_event", - GTK_SIGNAL_FUNC (_selection_clear_event), - text); - gtk_signal_connect (GTK_OBJECT(invisible), "selection_received", - GTK_SIGNAL_FUNC (_selection_received), - text); - - gtk_signal_connect (GTK_OBJECT(invisible), "destroy", - GTK_SIGNAL_FUNC (_invisible_destroy), - text); - } - return invisible; -} - -static void -_selection_clear_event (GtkInvisible *invisible, - GdkEventSelection *event, - EText *text) -{ - if (event->selection == GDK_SELECTION_PRIMARY) { - g_free (text->primary_selection); - text->primary_selection = NULL; - text->primary_length = 0; - - text->has_selection = FALSE; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text)); - - } else if (event->selection == clipboard_atom) { - g_free (text->clipboard_selection); - text->clipboard_selection = NULL; - text->clipboard_length = 0; - } -} - -static void -_selection_get (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint info, - guint time_stamp, - EText *text) -{ - switch (info) { - case E_SELECTION_PRIMARY: - gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING, - 8, text->primary_selection, text->primary_length); - break; - case E_SELECTION_CLIPBOARD: - gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING, - 8, text->clipboard_selection, text->clipboard_length); - break; - } -} - -static void -_selection_received (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint time, - EText *text) -{ - if (selection_data->length < 0 || selection_data->type != GDK_SELECTION_TYPE_STRING) { - return; - } else { - ETextEventProcessorCommand command; - command.action = E_TEP_INSERT; - command.position = E_TEP_SELECTION; - command.string = selection_data->data; - command.value = selection_data->length; - command.time = time; - e_text_command(text->tep, &command, text); - } -} - -static void e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length) -{ - gboolean successful; - GtkWidget *invisible; - - invisible = e_text_get_invisible(text); - - if (selection == GDK_SELECTION_PRIMARY ) { - if (text->primary_selection) { - g_free (text->primary_selection); - } - text->primary_selection = g_strndup(data, length); - text->primary_length = length; - } else if (selection == clipboard_atom) { - if (text->clipboard_selection) { - g_free (text->clipboard_selection); - } - text->clipboard_selection = g_strndup(data, length); - text->clipboard_length = length; - } - - successful = gtk_selection_owner_set (invisible, - selection, - time); - - if (selection == GDK_SELECTION_PRIMARY) - text->has_selection = successful; -} - -static void -e_text_get_selection(EText *text, GdkAtom selection, guint32 time) -{ - GtkWidget *invisible; - invisible = e_text_get_invisible(text); - gtk_selection_convert(invisible, - selection, - GDK_SELECTION_TYPE_STRING, - time); -} - -#if 0 -static void -e_text_real_copy_clipboard (EText *text) -{ - guint32 time; - gint selection_start_pos; - gint selection_end_pos; - - g_return_if_fail (text != NULL); - g_return_if_fail (E_IS_TEXT (text)); - - time = gtk_text_get_event_time (text); - selection_start_pos = MIN (text->selection_start, text->selection_end); - selection_end_pos = MAX (text->selection_start, text->selection_end); - - if (selection_start_pos != selection_end_pos) - { - if (gtk_selection_owner_set (GTK_WIDGET (text->canvas), - clipboard_atom, - time)) - text->clipboard_text = ""; - } -} - -static void -e_text_real_paste_clipboard (EText *text) -{ - guint32 time; - - g_return_if_fail (text != NULL); - g_return_if_fail (E_IS_TEXT (text)); - - time = e_text_get_event_time (text); - if (text->editable) - gtk_selection_convert (GTK_WIDGET(text->widget), - clipboard_atom, - gdk_atom_intern ("COMPOUND_TEXT", FALSE), time); -} -#endif - -/* Get the timestamp of the current event. Actually, the only thing - * we really care about below is the key event - */ -static guint32 -e_text_get_event_time (EText *text) -{ - GdkEvent *event; - guint32 tm = GDK_CURRENT_TIME; - - event = gtk_get_current_event(); - - if (event) - switch (event->type) - { - case GDK_MOTION_NOTIFY: - tm = event->motion.time; break; - case GDK_BUTTON_PRESS: - case GDK_2BUTTON_PRESS: - case GDK_3BUTTON_PRESS: - case GDK_BUTTON_RELEASE: - tm = event->button.time; break; - case GDK_KEY_PRESS: - case GDK_KEY_RELEASE: - tm = event->key.time; break; - case GDK_ENTER_NOTIFY: - case GDK_LEAVE_NOTIFY: - tm = event->crossing.time; break; - case GDK_PROPERTY_NOTIFY: - tm = event->property.time; break; - case GDK_SELECTION_CLEAR: - case GDK_SELECTION_REQUEST: - case GDK_SELECTION_NOTIFY: - tm = event->selection.time; break; - case GDK_PROXIMITY_IN: - case GDK_PROXIMITY_OUT: - tm = event->proximity.time; break; - default: /* use current time */ - break; - } - gdk_event_free(event); - - return tm; -} - - - -/* Routines for sucking fonts from the X server */ - -static ETextSuckFont * -e_suck_font (GdkFont *font) -{ - ETextSuckFont *suckfont; - int i; - int x, y; - char text[1]; - int lbearing, rbearing, ch_width, ascent, descent; - GdkPixmap *pixmap; - GdkColor black, white; - GdkImage *image; - GdkGC *gc; - guchar *line; - int width, height; - int black_pixel, pixel; - - if (!font) - return NULL; - - suckfont = g_new (ETextSuckFont, 1); - - height = font->ascent + font->descent; - x = 0; - for (i = 0; i < 256; i++) { - text[0] = i; - gdk_text_extents (font, text, 1, - &lbearing, &rbearing, &ch_width, &ascent, &descent); - suckfont->chars[i].left_sb = lbearing; - suckfont->chars[i].right_sb = ch_width - rbearing; - suckfont->chars[i].width = rbearing - lbearing; - suckfont->chars[i].ascent = ascent; - suckfont->chars[i].descent = descent; - suckfont->chars[i].bitmap_offset = x; - x += (ch_width + 31) & -32; - } - - width = x; - - suckfont->bitmap_width = width; - suckfont->bitmap_height = height; - suckfont->ascent = font->ascent; - - pixmap = gdk_pixmap_new (NULL, suckfont->bitmap_width, - suckfont->bitmap_height, 1); - gc = gdk_gc_new (pixmap); - gdk_gc_set_font (gc, font); - - black_pixel = BlackPixel (gdk_display, DefaultScreen (gdk_display)); - black.pixel = black_pixel; - white.pixel = WhitePixel (gdk_display, DefaultScreen (gdk_display)); - gdk_gc_set_foreground (gc, &white); - gdk_draw_rectangle (pixmap, gc, 1, 0, 0, width, height); - - gdk_gc_set_foreground (gc, &black); - for (i = 0; i < 256; i++) { - text[0] = i; - gdk_draw_text (pixmap, font, gc, - suckfont->chars[i].bitmap_offset - suckfont->chars[i].left_sb, - font->ascent, - text, 1); - } - - /* The handling of the image leaves me with distinct unease. But this - * is more or less copied out of gimp/app/text_tool.c, so it _ought_ to - * work. -RLL - */ - - image = gdk_image_get (pixmap, 0, 0, width, height); - suckfont->bitmap = g_malloc0 ((width >> 3) * height); - - line = suckfont->bitmap; - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - pixel = gdk_image_get_pixel (image, x, y); - if (pixel == black_pixel) - line[x >> 3] |= 128 >> (x & 7); - } - line += width >> 3; - } - - gdk_image_destroy (image); - - /* free the pixmap */ - gdk_pixmap_unref (pixmap); - - /* free the gc */ - gdk_gc_destroy (gc); - - return suckfont; -} - -static void -e_suck_font_free (ETextSuckFont *suckfont) -{ - g_free (suckfont->bitmap); - g_free (suckfont); -} |