diff options
Diffstat (limited to 'widgets/table/e-cell-text.c')
| -rw-r--r-- | widgets/table/e-cell-text.c | 2385 |
1 files changed, 0 insertions, 2385 deletions
diff --git a/widgets/table/e-cell-text.c b/widgets/table/e-cell-text.c deleted file mode 100644 index f16cfe7954..0000000000 --- a/widgets/table/e-cell-text.c +++ /dev/null @@ -1,2385 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* e-cell-text.c - Text cell renderer - * Copyright (C) 2000 Helix Code, Inc. - * - * Authors: Miguel de Icaza <miguel@helixcode.com> - * Chris Lahey <clahey@helixcode.com> - * - * (C) 1999, 2000 Helix Code, Inc. - * - * A lot 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> - * - * TODO: - * Clean up UTF-8 handling - * UTF-8 selection - */ - -#include <config.h> -#include <gtk/gtkenums.h> -#include <gtk/gtkentry.h> -#include <gtk/gtkwindow.h> -#include <gtk/gtkinvisible.h> -#include <gtk/gtksignal.h> -#include <gdk/gdkkeysyms.h> -#include <libgnomeui/gnome-canvas.h> -#include <stdio.h> -#include <unicode.h> -#include "e-cell-text.h" -#include "gal/util/e-util.h" -#include "gal/widgets/e-canvas.h" -#include "gal/widgets/e-font.h" -#include "gal/widgets/e-unicode.h" -#include "e-table-item.h" -#include "gal/e-text/e-text-event-processor.h" -#include "gal/e-text/e-text.h" -#include "gal/e-text/e-text-event-processor-emacs-like.h" -#include "e-table-tooltip.h" - -#include <gdk/gdkx.h> /* for BlackPixel */ -#include <ctype.h> -#include <math.h> - -/* This defines a line of text */ -struct line { - char *text; /* Line's text UTF-8, it is a pointer into the text->text string */ - int length; /* Line's length in BYTES */ - int width; /* Line's width in pixels */ - int ellipsis_length; /* Length before adding ellipsis in BYTES */ -}; - -/* Object argument IDs */ -enum { - ARG_0, - - ARG_STRIKEOUT_COLUMN, - ARG_BOLD_COLUMN, - ARG_TEXT_FILTER, - ARG_COLOR_COLUMN, -}; - - -enum { - E_SELECTION_PRIMARY, - E_SELECTION_CLIPBOARD -}; - -static GdkAtom clipboard_atom = GDK_NONE; - -#define PARENT_TYPE e_cell_get_type () - -#define TEXT_PAD 4 - -typedef struct { - gpointer lines; /* Text split into lines (private field) */ - int num_lines; /* Number of lines of text */ - int max_width; - int ref_count; -} ECellTextLineBreaks; - - -typedef struct _CellEdit CellEdit; - -typedef struct { - ECellView cell_view; - GdkGC *gc; -#if 0 - GdkFont *font; -#else - EFont *font; -#endif - GdkCursor *i_cursor; - GdkBitmap *stipple; /* Stipple for text */ - - GnomeCanvas *canvas; - - /* - * During editing. - */ - CellEdit *edit; - - - int xofs, yofs; /* This gets added to the x - and y for the cell text. */ - double ellipsis_width[2]; /* The width of the ellipsis. */ - -} ECellTextView; - -typedef struct _CurrentCell{ - ECellTextView *text_view; - int width; - char *text; - int model_col, view_col, row; - ECellTextLineBreaks *breaks; - EFontStyle style; -} CurrentCell; - -#define CURRENT_CELL(x) ((CurrentCell *)(x)) - -struct _CellEdit { - CurrentCell cell; - - char *old_text; - - /* - * Where the editing is taking place - */ - - int xofs_edit, yofs_edit; /* Offset because of editing. - This is negative compared - to the other offsets. */ - - /* This needs to be reworked a bit once we get line wrapping. */ - int selection_start; /* Start of selection - IN BYTES */ - int selection_end; /* End of selection - IN BYTES */ - gboolean select_by_word; /* Current selection is by word */ - - /* This section is for drag scrolling and blinking cursor. */ - /* Cursor handling. */ - gint timeout_id; /* Current timeout id for scrolling */ - GTimer *timer; /* Timer for blinking cursor and scrolling */ - - gint lastx, lasty; /* Last x and y motion events */ - gint last_state; /* Last state */ - gulong scroll_start; /* Starting time for scroll (microseconds) */ - - gint show_cursor; /* Is cursor currently shown */ - gboolean button_down; /* Is mouse button 1 down */ - - ETextEventProcessor *tep; /* Text Event Processor */ - - /* Hmmm... this should probably be in native encoding? */ - - GtkWidget *invisible; /* For selection handling */ - gboolean has_selection; /* TRUE if we have the selection */ - gchar *primary_selection; /* Primary selection text */ - gint primary_length; /* Primary selection text length in BYTES */ - gchar *clipboard_selection; /* Clipboard selection text */ - gint clipboard_length; /* Clipboard selection text length in BYTES */ - - guint pointer_in : 1; - guint default_cursor_shown : 1; - - ECellActions actions; -}; - -static void e_cell_text_view_command (ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data); - -static void e_cell_text_view_get_selection (CellEdit *edit, GdkAtom selection, guint32 time); -static void e_cell_text_view_supply_selection (CellEdit *edit, guint time, GdkAtom selection, char *data, gint length); - -static GtkWidget *e_cell_text_view_get_invisible (CellEdit *edit); -static void _selection_clear_event (GtkInvisible *invisible, - GdkEventSelection *event, - CellEdit *edit); -static void _selection_get (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint info, - guint time_stamp, - CellEdit *edit); -static void _selection_received (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint time, - CellEdit *edit); -static int number_of_lines (char *text); -static void split_into_lines (CurrentCell *cell); -static void unref_lines (CurrentCell *cell); -static void calc_line_widths (CurrentCell *cell); -static int get_line_ypos (CurrentCell *cell, struct line *line); -static int get_line_xpos (CurrentCell *cell, struct line *line); -static void _get_tep (CellEdit *edit); - -static gint _get_position_from_xy (CurrentCell *cell, gint x, gint y); -static void _get_xy_from_position (CurrentCell *cell, gint position, gint *xp, gint *yp); -static gboolean _blink_scroll_timeout (gpointer data); - -static void build_current_cell (CurrentCell *cell, ECellTextView *text_view, int model_col, int view_col, int row); -static void unbuild_current_cell (CurrentCell *cell); -static void calc_ellipsis (ECellTextView *text_view); -static void ect_free_color (gchar *color_spec, GdkColor *color, GdkColormap *colormap); -static GdkColor* e_cell_text_get_color (ECellTextView *cell_view, gchar *color_spec); - -static ECellClass *parent_class; - -static void -ect_queue_redraw (ECellTextView *text_view, int view_col, int view_row) -{ - e_table_item_redraw_range ( - text_view->cell_view.e_table_item_view, - view_col, view_row, view_col, view_row); -} - -/* - * Accept the currently edited text. if it's the same as what's in the cell, do nothing. - */ -static void -ect_accept_edits (ECellTextView *text_view) -{ - CurrentCell *cell = (CurrentCell *) text_view->edit; - - if (strcmp (text_view->edit->old_text, cell->text)) { - e_table_model_set_value_at (text_view->cell_view.e_table_model, - cell->model_col, cell->row, cell->text); - } -} - -/* - * Shuts down the editing process - */ -static void -ect_stop_editing (ECellTextView *text_view) -{ - CellEdit *edit = text_view->edit; - int row, view_col; - - if (!edit) - return; - - row = edit->cell.row; - view_col = edit->cell.view_col; - - g_free (edit->old_text); - edit->old_text = NULL; - g_free (edit->cell.text); - edit->cell.text = NULL; - if (edit->invisible) - gtk_widget_unref (edit->invisible); - if (edit->tep) - gtk_object_unref (GTK_OBJECT(edit->tep)); - if (edit->primary_selection) - g_free (edit->primary_selection); - if (edit->clipboard_selection) - g_free (edit->clipboard_selection); - if (! edit->default_cursor_shown){ - gdk_window_set_cursor (GTK_WIDGET(text_view->canvas)->window, NULL); - edit->default_cursor_shown = TRUE; - } - if (edit->timeout_id) { - g_source_remove (edit->timeout_id); - edit->timeout_id = 0; - } - if (edit->timer) { - g_timer_stop (edit->timer); - g_timer_destroy (edit->timer); - edit->timer = NULL; - } - - g_free (edit); - - text_view->edit = NULL; - ect_queue_redraw (text_view, view_col, row); -} - -/* - * Cancels the edits - */ -static void -ect_cancel_edit (ECellTextView *text_view) -{ - ect_stop_editing (text_view); -} - -/* - * ECell::new_view method - */ -static ECellView * -ect_new_view (ECell *ecell, ETableModel *table_model, void *e_table_item_view) -{ - ECellText *ect = E_CELL_TEXT (ecell); - ECellTextView *text_view = g_new0 (ECellTextView, 1); - GnomeCanvas *canvas = GNOME_CANVAS_ITEM (e_table_item_view)->canvas; - - text_view->cell_view.ecell = ecell; - text_view->cell_view.e_table_model = table_model; - text_view->cell_view.e_table_item_view = e_table_item_view; - - if (ect->font_name){ -#if 0 - GdkFont *f; - - f = gdk_fontset_load (ect->font_name); - text_view->font = f; -#endif - text_view->font = e_font_from_gdk_name (ect->font_name); - } - if (!text_view->font){ - gdk_font_ref (GTK_WIDGET (canvas)->style->font); - text_view->font = e_font_from_gdk_font (GTK_WIDGET (canvas)->style->font); - } - - text_view->canvas = canvas; - - text_view->xofs = 0.0; - text_view->yofs = 0.0; - - return (ECellView *)text_view; -} - -/* - * ECell::kill_view method - */ -static void -ect_kill_view (ECellView *ecv) -{ - ECellTextView *text_view = (ECellTextView *) ecv; - - g_free (text_view); -} - -/* - * ECell::realize method - */ -static void -ect_realize (ECellView *ecell_view) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - - text_view->gc = gdk_gc_new (GTK_WIDGET (text_view->canvas)->window); - - text_view->i_cursor = gdk_cursor_new (GDK_XTERM); - - calc_ellipsis (text_view); - - if (parent_class->realize) - (* parent_class->realize) (ecell_view); -} - -/* - * ECell::unrealize method - */ -static void -ect_unrealize (ECellView *ecv) -{ - ECellTextView *text_view = (ECellTextView *) ecv; - ECellText *ect = (ECellText*) ecv->ecell; - GdkColormap *colormap; - - gdk_gc_unref (text_view->gc); - text_view->gc = NULL; - - if (text_view->edit){ - ect_cancel_edit (text_view); - } - - if (text_view->font) - e_font_unref (text_view->font); - - if (text_view->stipple) - gdk_bitmap_unref (text_view->stipple); - - gdk_cursor_destroy (text_view->i_cursor); - - if (ect->colors) { - colormap = gtk_widget_get_colormap (GTK_WIDGET (text_view->canvas)); - g_hash_table_foreach (ect->colors, (GHFunc) ect_free_color, - colormap); - g_hash_table_destroy (ect->colors); - ect->colors = NULL; - } - - if (parent_class->unrealize) - (* parent_class->unrealize) (ecv); -} - -static void -ect_free_color (gchar *color_spec, GdkColor *color, GdkColormap *colormap) -{ - - g_free (color_spec); - - /* This frees the color. Note we don't free it if it is the special - value. */ - if (color != (GdkColor*) 1) { - gdk_colors_free (colormap, &color->pixel, 1, 0); - - /* This frees the memory for the GdkColor. */ - gdk_color_free (color); - } -} - -static void -set_style(ECellView *ecell_view, CurrentCell *cell, int row) -{ - EFontStyle style = E_FONT_PLAIN; - ECellText *ect = E_CELL_TEXT (ecell_view->ecell); - - if (ect->bold_column >= 0 && e_table_model_value_at(ecell_view->e_table_model, ect->bold_column, row)) - style = E_FONT_BOLD; - - cell->style = style; -} - -/* - * ECell::draw method - */ -static void -ect_draw (ECellView *ecell_view, GdkDrawable *drawable, - int model_col, int view_col, int row, ECellFlags flags, - int x1, int y1, int x2, int y2) -{ - /* New ECellText */ - ECellText *ect = E_CELL_TEXT (ecell_view->ecell); - ECellTextView *text_view = (ECellTextView *) ecell_view; - GtkWidget *canvas = GTK_WIDGET (text_view->canvas); - 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; - EFont *font = text_view->font; - const int height = e_font_height (text_view->font); - CellEdit *edit = text_view->edit; - gboolean edit_display = FALSE; - ECellTextLineBreaks *linebreaks; - GdkColor *foreground, *cell_foreground, *cursor_color; - gchar *color_spec; - gboolean selected; - EFontStyle style = E_FONT_PLAIN; - - selected = flags & E_CELL_SELECTED; - - if (edit){ - if ((edit->cell.view_col == view_col) && (edit->cell.row == row)) { - edit_display = TRUE; - fg_gc = canvas->style->fg_gc[edit->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE]; - } else - fg_gc = canvas->style->fg_gc[GTK_STATE_ACTIVE]; - } else { - fg_gc = canvas->style->fg_gc[GTK_STATE_ACTIVE]; - } - - /* - * Be a nice citizen: clip to the region we are supposed to draw on - */ - rect.x = x1; - rect.y = y1; - rect.width = x2 - x1; - rect.height = y2 - y1; - - gdk_gc_set_clip_rectangle (text_view->gc, &rect); - gdk_gc_set_clip_rectangle (fg_gc, &rect); - clip_rect = ▭ - - if (selected){ - if (flags & E_CELL_FOCUSED) - foreground = &canvas->style->text [GTK_STATE_SELECTED]; - else - foreground = &canvas->style->text [GTK_STATE_ACTIVE]; - } else { - foreground = &canvas->style->text [GTK_STATE_NORMAL]; - } - - cursor_color = foreground; - - if (ect->color_column != -1 && ! selected) { - color_spec = e_table_model_value_at (ecell_view->e_table_model, - ect->color_column, row); - cell_foreground = e_cell_text_get_color (text_view, - color_spec); - if (cell_foreground) - foreground = cell_foreground; - } - - gdk_gc_set_foreground (text_view->gc, foreground); - - x1 += 4; - y1 += 1; - x2 -= 4; - y2 -= 1; - - rect.x = x1; - rect.y = y1; - rect.width = x2 - x1; - rect.height = y2 - y1; - - gdk_gc_set_clip_rectangle (text_view->gc, &rect); - gdk_gc_set_clip_rectangle (fg_gc, &rect); - clip_rect = ▭ - - if (edit_display){ - CellEdit *edit = text_view->edit; - CurrentCell *cell = CURRENT_CELL(edit); - - set_style(ecell_view, cell, row); - - style = cell->style; - - cell->width = x2 - x1; - - split_into_lines (cell); - - linebreaks = cell->breaks; - - lines = linebreaks->lines; - ypos = get_line_ypos (cell, lines); - ypos += e_font_ascent (text_view->font); - ypos -= edit->yofs_edit; - - for (i = 0; i < linebreaks->num_lines; i++) { - xpos = get_line_xpos (cell, lines); - xpos -= edit->xofs_edit; - - /* start_char, end_char, sel_start and sel_end are IN BYTES */ - - start_char = lines->text - cell->text; - end_char = start_char + lines->length; - - sel_start = edit->selection_start; - sel_end = edit->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 + x1 + e_font_utf8_text_width (font, style, lines->text, sel_start - start_char); - sel_rect.y = ypos + y1 - e_font_ascent (font); - sel_rect.width = e_font_utf8_text_width (font, style, - lines->text + sel_start - start_char, - sel_end - sel_start); - sel_rect.height = height; - gtk_paint_flat_box (canvas->style, - drawable, - edit->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE, - GTK_SHADOW_NONE, - clip_rect, - canvas, - "text", - sel_rect.x, - sel_rect.y, - sel_rect.width, - sel_rect.height); - - e_font_draw_utf8_text (drawable, font, style, text_view->gc, xpos + x1, ypos + y1, - lines->text, - sel_start - start_char); - e_font_draw_utf8_text (drawable, font, style, fg_gc, - xpos + x1 + e_font_utf8_text_width (font, style, lines->text, sel_start - start_char), - ypos + y1, - lines->text + sel_start - start_char, - sel_end - sel_start); - e_font_draw_utf8_text (drawable, font, style, text_view->gc, - xpos + x1 + e_font_utf8_text_width (font, style, lines->text, sel_end - start_char), - ypos + y1, - lines->text + sel_end - start_char, - end_char - sel_end); - } else { - e_font_draw_utf8_text (drawable, font, style, text_view->gc, - xpos + x1, ypos + y1, - lines->text, - lines->length); - } - if (edit->selection_start == edit->selection_end && - edit->selection_start >= start_char && - edit->selection_start <= end_char && - edit->show_cursor) { - gdk_gc_set_foreground (text_view->gc, cursor_color); - gdk_draw_rectangle (drawable, - text_view->gc, - TRUE, - xpos + x1 + e_font_utf8_text_width (font, style, lines->text, sel_start - start_char), - ypos + y1 - e_font_ascent (font), - 1, - height); - } - if (ect->strikeout_column >= 0 && e_table_model_value_at(ecell_view->e_table_model, ect->strikeout_column, row)) { - gdk_draw_rectangle (drawable, - text_view->gc, - TRUE, - x1, ypos + y1 - (e_font_ascent (font) / 2), - x2 - x1, - 1); - } - ypos += height; - lines ++; - } - unref_lines (cell); - } else { - - ECellTextLineBreaks *linebreaks; - CurrentCell cell; - build_current_cell (&cell, text_view, model_col, view_col, row); - - set_style(ecell_view, &cell, row); - - style = cell.style; - - cell.width = x2 - x1; - - split_into_lines (&cell); - - linebreaks = cell.breaks; - lines = linebreaks->lines; - ypos = get_line_ypos (&cell, lines); - ypos += e_font_ascent (text_view->font); - - - for (i = 0; i < linebreaks->num_lines; i++) { - xpos = get_line_xpos (&cell, lines); - if (ect->use_ellipsis && lines->ellipsis_length < lines->length) { - e_font_draw_utf8_text (drawable, font, style, text_view->gc, - xpos + x1, ypos + y1, - lines->text, - lines->ellipsis_length); - e_font_draw_utf8_text (drawable, font, style, text_view->gc, - xpos + x1 + lines->width - text_view->ellipsis_width[style], - ypos + y1, - ect->ellipsis ? ect->ellipsis : "...", - ect->ellipsis ? strlen (ect->ellipsis) : 3); - } else { - e_font_draw_utf8_text (drawable, font, style, text_view->gc, - xpos + x1, - ypos + y1, - lines->text, - lines->length); - } - if (ect->strikeout_column >= 0 && e_table_model_value_at(ecell_view->e_table_model, ect->strikeout_column, row)) { - gdk_draw_rectangle (drawable, - text_view->gc, - TRUE, - x1, ypos + y1 - (e_font_ascent (font) / 2), - x2 - x1, - 1); - } - ypos += height; - lines++; - } - unref_lines (&cell); - unbuild_current_cell (&cell); - } - - gdk_gc_set_clip_rectangle (text_view->gc, NULL); - gdk_gc_set_clip_rectangle (fg_gc, NULL); -} - -/* - * Selects the entire string - */ -static void -ect_edit_select_all (ECellTextView *text_view) -{ - g_assert (text_view->edit); - - text_view->edit->selection_start = 0; - text_view->edit->selection_end = strlen (text_view->edit->cell.text); -} - -/* - * ECell::event method - */ -static gint -ect_event (ECellView *ecell_view, GdkEvent *event, int model_col, int view_col, int row, ECellFlags flags, ECellActions *actions) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - ETextEventProcessorEvent e_tep_event; - gboolean edit_display = FALSE; - CellEdit *edit = text_view->edit; - GtkWidget *canvas = GTK_WIDGET (text_view->canvas); - gint return_val = 0; - CurrentCell cell, *cellptr; - - if (flags & !E_CELL_EDITING) - return 0; - - build_current_cell (&cell, text_view, model_col, view_col, row); - - - if (edit){ - if ((edit->cell.view_col == view_col) && (edit->cell.row == row)) { - edit_display = TRUE; - cellptr = CURRENT_CELL(edit); - } else { - cellptr = &cell; - } - } else { - cellptr = &cell; - } - - set_style(ecell_view, cellptr, row); - - e_tep_event.type = event->type; - switch (event->type) { - case GDK_FOCUS_CHANGE: - break; - case GDK_KEY_PRESS: /* Fall Through */ - case GDK_KEY_RELEASE: - if (event->key.keyval == GDK_Escape){ - ect_cancel_edit (text_view); - return_val = TRUE; - break; - } - - if ((!edit_display) && e_table_model_is_cell_editable (ecell_view->e_table_model, model_col, row)) { - e_table_item_enter_edit (text_view->cell_view.e_table_item_view, view_col, row); - ect_edit_select_all (text_view); - edit = text_view->edit; - cellptr = CURRENT_CELL(edit); - edit_display = TRUE; - } - if (edit_display) { - GdkEventKey key = event->key; - if (key.keyval == GDK_KP_Enter || key.keyval == GDK_Return){ - e_table_item_leave_edit (text_view->cell_view.e_table_item_view); - } else { - e_tep_event.key.time = key.time; - e_tep_event.key.state = key.state; - e_tep_event.key.keyval = key.keyval; - - /* This is probably ugly hack, but we have to handle UTF-8 input somehow */ -#if 0 - e_tep_event.key.length = key.length; - e_tep_event.key.string = key.string; -#else - e_tep_event.key.string = e_utf8_from_gtk_event_key (canvas, key.keyval, key.string); - if (e_tep_event.key.string != NULL) { - e_tep_event.key.length = strlen (e_tep_event.key.string); - } else { - e_tep_event.key.length = 0; - } -#endif - - _get_tep (edit); - return_val = e_text_event_processor_handle_event (edit->tep, &e_tep_event); - *actions = edit->actions; - if (e_tep_event.key.string) g_free (e_tep_event.key.string); - break; - } - } - - else - return 0; - break; - case GDK_BUTTON_PRESS: /* Fall Through */ - case GDK_BUTTON_RELEASE: - event->button.x -= 4; - event->button.y -= 1; - if ((!edit_display) - && e_table_model_is_cell_editable (ecell_view->e_table_model, model_col, row) - && event->type == GDK_BUTTON_RELEASE - && event->button.button == 1) { - GdkEventButton button = event->button; - - e_table_item_enter_edit (text_view->cell_view.e_table_item_view, view_col, row); - edit = text_view->edit; - cellptr = CURRENT_CELL(edit); - edit_display = TRUE; - - e_tep_event.button.type = GDK_BUTTON_PRESS; - 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 (cellptr, button.x, button.y); - _get_tep (edit); - return_val = e_text_event_processor_handle_event (edit->tep, - &e_tep_event); - *actions = edit->actions; - if (event->button.button == 1) { - if (event->type == GDK_BUTTON_PRESS) - edit->button_down = TRUE; - else - edit->button_down = FALSE; - } - edit->lastx = button.x; - edit->lasty = button.y; - edit->last_state = button.state; - - e_tep_event.button.type = GDK_BUTTON_RELEASE; - } - if (edit_display) { - 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 (cellptr, button.x, button.y); - _get_tep (edit); - return_val = e_text_event_processor_handle_event (edit->tep, - &e_tep_event); - *actions = edit->actions; - if (event->button.button == 1) { - if (event->type == GDK_BUTTON_PRESS) - edit->button_down = TRUE; - else - edit->button_down = FALSE; - } - edit->lastx = button.x; - edit->lasty = button.y; - edit->last_state = button.state; - } - break; - case GDK_MOTION_NOTIFY: - event->motion.x -= 4; - event->motion.y -= 1; - if (edit_display) { - 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 (cellptr, motion.x, motion.y); - _get_tep (edit); - return_val = e_text_event_processor_handle_event (edit->tep, - &e_tep_event); - *actions = edit->actions; - edit->lastx = motion.x; - edit->lasty = motion.y; - edit->last_state = motion.state; - } - break; - case GDK_ENTER_NOTIFY: -#if 0 - edit->pointer_in = TRUE; -#endif - if (edit_display) { - if (edit->default_cursor_shown){ - gdk_window_set_cursor (canvas->window, text_view->i_cursor); - edit->default_cursor_shown = FALSE; - } - } - break; - case GDK_LEAVE_NOTIFY: -#if 0 - text_view->pointer_in = FALSE; -#endif - if (edit_display) { - if (! edit->default_cursor_shown){ - gdk_window_set_cursor (canvas->window, NULL); - edit->default_cursor_shown = TRUE; - } - } - break; - default: - break; - } - - unbuild_current_cell (&cell); - if (return_val) - return return_val; -#if 0 - if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event) - return GNOME_CANVAS_ITEM_CLASS(parent_class)->event (item, event); -#endif - else - return 0; - -} - -/* - * ECell::height method - */ -static int -ect_height (ECellView *ecell_view, int model_col, int view_col, int row) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - EFont *font; - ECellText *ect = E_CELL_TEXT(ecell_view->ecell); - - font = text_view->font; - if (ect->filter) { - gchar *string; - gint value; - - string = (*ect->filter)(e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - value = e_font_height (font) * number_of_lines(string) + TEXT_PAD; - - g_free(string); - - return value; - } else { - gchar * string; - gint value; - - string = e_table_model_value_at (ecell_view->e_table_model, model_col, row); - - value = e_font_height (font) * number_of_lines (string) + TEXT_PAD; - - return value; - } -} - -/* - * ECellView::enter_edit method - */ -static void * -ect_enter_edit (ECellView *ecell_view, int model_col, int view_col, int row) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - CellEdit *edit; - ECellText *ect = E_CELL_TEXT(ecell_view->ecell); - - edit = g_new (CellEdit, 1); - text_view->edit = edit; - - build_current_cell (CURRENT_CELL(edit), text_view, model_col, view_col, row); - - set_style(ecell_view, CURRENT_CELL(edit), row); - - edit->xofs_edit = 0.0; - edit->yofs_edit = 0.0; - - edit->selection_start = 0; - edit->selection_end = 0; - edit->select_by_word = FALSE; - - edit->timeout_id = g_timeout_add (10, _blink_scroll_timeout, text_view); - edit->timer = g_timer_new (); - g_timer_elapsed (edit->timer, &(edit->scroll_start)); - g_timer_start (edit->timer); - - edit->lastx = 0; - edit->lasty = 0; - edit->last_state = 0; - - edit->scroll_start = 0; - edit->show_cursor = TRUE; - edit->button_down = FALSE; - - edit->tep = NULL; - - edit->has_selection = FALSE; - - edit->invisible = NULL; - edit->primary_selection = NULL; - edit->primary_length = 0; - edit->clipboard_selection = NULL; - edit->clipboard_length = 0; - - edit->pointer_in = FALSE; - edit->default_cursor_shown = TRUE; - - if (ect->filter) { - edit->old_text = (*ect->filter)(e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - } else { - edit->old_text = g_strdup (e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - } - edit->cell.text = g_strdup (edit->old_text); - -#if 0 - if (edit->pointer_in){ - if (edit->default_cursor_shown){ - gdk_window_set_cursor (GTK_WIDGET(item->canvas)->window, text_view->i_cursor); - edit->default_cursor_shown = FALSE; - } - } -#endif - - ect_queue_redraw (text_view, view_col, row); - - return NULL; -} - -/* - * ECellView::leave_edit method - */ -static void -ect_leave_edit (ECellView *ecell_view, int model_col, int view_col, int row, void *edit_context) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - CellEdit *edit = text_view->edit; - - if (edit){ - ect_accept_edits (text_view); - ect_stop_editing (text_view); - /* FIXME: edit is freed in ect_stop_editing() so I've - commented this out - Damon. */ - /*unbuild_current_cell (CURRENT_CELL(edit));*/ - } else { - /* - * We did invoke this leave edit internally - */ - } -} - -static void -ect_print (ECellView *ecell_view, GnomePrintContext *context, - int model_col, int view_col, int row, - double width, double height) -{ - GnomeFont *font = gnome_font_new ("Helvetica", 12); - char *string; - ECellText *ect = E_CELL_TEXT(ecell_view->ecell); - if (ect->filter) { - string = (*ect->filter)(e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - } else { - string = e_table_model_value_at (ecell_view->e_table_model, model_col, row); - } - gnome_print_gsave(context); - if (gnome_print_moveto(context, 2, 2) == -1) - /* FIXME */; - if (gnome_print_lineto(context, width - 2, 2) == -1) - /* FIXME */; - if (gnome_print_lineto(context, width - 2, height - 2) == -1) - /* FIXME */; - if (gnome_print_lineto(context, 2, height - 2) == -1) - /* FIXME */; - if (gnome_print_lineto(context, 2, 2) == -1) - /* FIXME */; - if (gnome_print_clip(context) == -1) - /* FIXME */; - gnome_print_moveto(context, 2, (height - gnome_font_get_ascender(font) + gnome_font_get_descender(font)) / 2); - gnome_print_setfont(context, font); - gnome_print_show(context, string); - gnome_print_grestore(context); - if (ect->filter) { - g_free(string); - } -} - -static gdouble -ect_print_height (ECellView *ecell_view, GnomePrintContext *context, - int model_col, int view_col, int row, - double width) -{ - return 16; -} - -static int -ect_max_width (ECellView *ecell_view, - int model_col, - int view_col) -{ - /* New ECellText */ - ECellTextView *text_view = (ECellTextView *) ecell_view; - EFont *font; - int row; - int number_of_rows; - int max_width = 0; - - font = text_view->font; - number_of_rows = e_table_model_row_count (ecell_view->e_table_model); - - for (row = 0; row < number_of_rows; row++) { - CurrentCell cell; - struct line *line; - int width; - - build_current_cell (&cell, text_view, model_col, view_col, row); - split_into_lines (&cell); - calc_line_widths (&cell); - - line = (struct line *)cell.breaks->lines; - width = e_font_utf8_text_width (font, cell.style, - line->text, line->length); - max_width = MAX (max_width, width); - unref_lines (&cell); - unbuild_current_cell (&cell); - } - - return max_width; -} - -static gint -tooltip_event (GtkWidget *window, - GdkEvent *event, - ETableTooltip *tooltip) -{ - gint ret_val = FALSE; - - switch (event->type) { - case GDK_LEAVE_NOTIFY: - if (tooltip->window) { - gtk_widget_destroy (tooltip->window); - tooltip->window = NULL; - } - break; - case GDK_BUTTON_PRESS: - case GDK_BUTTON_RELEASE: - if (event->type == GDK_BUTTON_RELEASE) { - if (tooltip->window) { - gtk_widget_destroy (tooltip->window); - tooltip->window = NULL; - } - } - - event->button.x = tooltip->cx; - event->button.y = tooltip->cy; - gtk_signal_emit_by_name (GTK_OBJECT (tooltip->eti), "event", - event, &ret_val); - break; - case GDK_KEY_PRESS: - if (tooltip->window){ - gtk_widget_destroy (tooltip->window); - tooltip->window = NULL; - } - gtk_signal_emit_by_name (GTK_OBJECT (tooltip->eti), "event", - event, &ret_val); - break; - default: - break; - } - - return ret_val; -} - -static void -ect_show_tooltip (ECellView *ecell_view, - int model_col, - int view_col, - int row, - int col_width, - ETableTooltip *tooltip) -{ - ECellTextView *text_view = (ECellTextView *) ecell_view; - CurrentCell cell; - struct line *lines; - GtkWidget *canvas; - int i; - gdouble max_width; - gboolean cut_off; - double i2c[6]; - ArtPoint origin = {0, 0}; - ArtPoint pixel_origin; - int canvas_x, canvas_y; - GnomeCanvasItem *tooltip_text; - double tooltip_width; - double tooltip_height; - double tooltip_x; - double tooltip_y; - GnomeCanvasItem *rect; - double text_height; - - tooltip->timer = 0; - - build_current_cell (&cell, text_view, model_col, view_col, row); - - set_style(ecell_view, &cell, row); - - cell.width = col_width - 8; - split_into_lines (&cell); - calc_line_widths (&cell); - - cut_off = FALSE; - for (lines = cell.breaks->lines, i = 0; i < cell.breaks->num_lines; - lines++, i++) { - if (lines->length > lines->ellipsis_length) { - cut_off = TRUE; - break; - } - } - - if (!cut_off) { - tooltip->timer = 0; - return; - } - - gnome_canvas_item_i2c_affine (GNOME_CANVAS_ITEM (tooltip->eti), i2c); - art_affine_point (&pixel_origin, &origin, i2c); - - gdk_window_get_origin (GTK_WIDGET (text_view->canvas)->window, - &canvas_x, &canvas_y); - pixel_origin.x += canvas_x; - pixel_origin.y += canvas_y; - pixel_origin.x -= (int) gtk_layout_get_hadjustment (GTK_LAYOUT (text_view->canvas))->value; - pixel_origin.y -= (int) gtk_layout_get_vadjustment (GTK_LAYOUT (text_view->canvas))->value; - - tooltip->window = gtk_window_new (GTK_WINDOW_POPUP); - gtk_container_set_border_width (GTK_CONTAINER (tooltip->window), 1); - - canvas = e_canvas_new (); - gtk_container_add (GTK_CONTAINER (tooltip->window), canvas); - - max_width = 0.0; - for (lines = cell.breaks->lines, i = 0; i < cell.breaks->num_lines; - lines++, i++) { - gdouble line_width; - - line_width = e_font_utf8_text_width (text_view->font, - cell.style, lines->text, - lines->length); - max_width = MAX (max_width, line_width); - } - - text_height = e_font_height (text_view->font) * cell.breaks->num_lines + 4; - rect = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (canvas)), - gnome_canvas_rect_get_type (), - "x1", (double) 0.0, - "y1", (double) 0.0, - "x2", (double) max_width + 4, - "y2", (double) text_height, - "fill_color", "light gray", - NULL); - - tooltip_text = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (canvas)), - e_text_get_type (), - "anchor", GTK_ANCHOR_NW, -/* "font_gdk", text_view->font, */ - "text", cell.text, - "editable", FALSE, - "clip_width", max_width, - "clip_height", (double) text_height, - "clip", TRUE, - "line_wrap", FALSE, - "justification", E_CELL_TEXT (text_view->cell_view.ecell)->justify, - "draw_background", FALSE, - NULL); - - tooltip_width = max_width; - tooltip_height = text_height; - tooltip_y = tooltip->y; - - switch (E_CELL_TEXT (text_view->cell_view.ecell)->justify) { - case GTK_JUSTIFY_CENTER: - tooltip_x = - tooltip_width / 2; - break; - case GTK_JUSTIFY_RIGHT: - tooltip_x = tooltip_width / 2; - break; - case GTK_JUSTIFY_FILL: - case GTK_JUSTIFY_LEFT: - tooltip_x = tooltip->x; - break; - } - - gnome_canvas_item_move (tooltip_text, 3.0, 1.0); - gnome_canvas_item_set (rect, - "x2", (double) tooltip_width + 6, - "y2", (double) tooltip->row_height + 1, - NULL); - gtk_widget_set_usize (tooltip->window, tooltip_width + 6, - tooltip->row_height + 1); - gnome_canvas_set_scroll_region (GNOME_CANVAS (canvas), 0.0, 0.0, - (double) tooltip_width + 6, - (double) tooltip_height); - gtk_widget_show (canvas); - gtk_widget_realize (tooltip->window); - gtk_signal_connect (GTK_OBJECT (tooltip->window), "event", - GTK_SIGNAL_FUNC (tooltip_event), tooltip); - - gtk_widget_popup (tooltip->window, pixel_origin.x + tooltip->x, - pixel_origin.y + tooltip->y + 1); - - unref_lines (&cell); - unbuild_current_cell (&cell); - - return; -} - -/* - * GtkObject::destroy method - */ -static void -ect_destroy (GtkObject *object) -{ - ECellText *ect = E_CELL_TEXT (object); - - g_free (ect->font_name); - - GTK_OBJECT_CLASS (parent_class)->destroy (object); -} -/* Set_arg handler for the text item */ -static void -ect_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - ECellText *text; - - text = E_CELL_TEXT (object); - - switch (arg_id) { - case ARG_STRIKEOUT_COLUMN: - text->strikeout_column = GTK_VALUE_INT (*arg); - break; - - case ARG_BOLD_COLUMN: - text->bold_column = GTK_VALUE_INT (*arg); - break; - - case ARG_COLOR_COLUMN: - text->color_column = GTK_VALUE_INT (*arg); - break; - - case ARG_TEXT_FILTER: - text->filter = GTK_VALUE_POINTER (*arg); - break; - default: - return; - } -} - -/* Get_arg handler for the text item */ -static void -ect_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) -{ - ECellText *text; - - text = E_CELL_TEXT (object); - - switch (arg_id) { - case ARG_STRIKEOUT_COLUMN: - GTK_VALUE_INT (*arg) = text->strikeout_column; - break; - - case ARG_BOLD_COLUMN: - GTK_VALUE_INT (*arg) = text->bold_column; - break; - - case ARG_COLOR_COLUMN: - GTK_VALUE_INT (*arg) = text->color_column; - break; - - case ARG_TEXT_FILTER: - GTK_VALUE_POINTER (*arg) = text->filter; - break; - - default: - arg->type = GTK_TYPE_INVALID; - break; - } -} - -static void -e_cell_text_class_init (GtkObjectClass *object_class) -{ - ECellClass *ecc = (ECellClass *) object_class; - - object_class->destroy = ect_destroy; - - ecc->new_view = ect_new_view; - ecc->kill_view = ect_kill_view; - ecc->realize = ect_realize; - ecc->unrealize = ect_unrealize; - ecc->draw = ect_draw; - ecc->event = ect_event; - ecc->height = ect_height; - ecc->enter_edit = ect_enter_edit; - ecc->leave_edit = ect_leave_edit; - ecc->print = ect_print; - ecc->print_height = ect_print_height; - ecc->max_width = ect_max_width; - ecc->show_tooltip = ect_show_tooltip; - - object_class->get_arg = ect_get_arg; - object_class->set_arg = ect_set_arg; - - parent_class = gtk_type_class (PARENT_TYPE); - - gtk_object_add_arg_type ("ECellText::strikeout_column", - GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_STRIKEOUT_COLUMN); - gtk_object_add_arg_type ("ECellText::bold_column", - GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_BOLD_COLUMN); - gtk_object_add_arg_type ("ECellText::color_column", - GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_COLOR_COLUMN); - gtk_object_add_arg_type ("ECellText::text_filter", - GTK_TYPE_POINTER, GTK_ARG_READWRITE, ARG_TEXT_FILTER); - - if (!clipboard_atom) - clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE); -} - -static void -e_cell_text_init (ECellText *ect) -{ - ect->strikeout_column = -1; - ect->bold_column = -1; - ect->color_column = -1; -} - -E_MAKE_TYPE(e_cell_text, "ECellText", ECellText, e_cell_text_class_init, e_cell_text_init, PARENT_TYPE); - -/** - * e_cell_text_new: - * @fontname: font to be used to render on the screen - * @justify: Justification of the string in the cell. - * - * Creates a new ECell renderer that can be used to render strings that - * that come from the model. The value returned from the model is - * interpreted as being a char *. - * - * The ECellText object support a large set of properties that can be - * configured through the Gtk argument system and allows the user to have - * a finer control of the way the string is displayed. The arguments supported - * allow the control of strikeout, bold, color and a text filter. - * - * The arguments "strikeout_column", "bold_column" and "color_column" set - * and return an integer that points to a column in the model that controls - * these settings. So controlling the way things are rendered is achieved - * by having special columns in the model that will be used to flag whether - * the text should be rendered with strikeout, or bolded. In the case of - * the "color_column" argument, the column in the model is expected to have - * a string that can be parsed by gdk_color_parse(). - * - * Returns: an ECell object that can be used to render strings. - */ -ECell * -e_cell_text_new (const char *fontname, GtkJustification justify) -{ - ECellText *ect = gtk_type_new (e_cell_text_get_type ()); - - ect->ellipsis = NULL; - ect->use_ellipsis = TRUE; - - ect->font_name = g_strdup (fontname); - ect->justify = justify; - - return (ECell *) ect; -} - -/* Calculates the x position of the specified line of text, based on the text's justification */ -static int -get_line_xpos (CurrentCell *cell, struct line *line) -{ - int x; - - ECellTextView *text_view = cell->text_view; - ECellText *ect = E_CELL_TEXT (((ECellView *)cell->text_view)->ecell); - - x = text_view->xofs + ect->x; - - switch (ect->justify) { - case GTK_JUSTIFY_RIGHT: - x += cell->width - line->width; - break; - - case GTK_JUSTIFY_CENTER: - x += (cell->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; -} - -/* Calculates the x position of the specified line of text, based on the text's justification */ -static int -get_line_ypos (CurrentCell *cell, struct line *line) -{ - int y; - - ECellTextView *text_view = cell->text_view; - ECellText *ect = E_CELL_TEXT (((ECellView *)cell->text_view)->ecell); - ECellTextLineBreaks *linebreaks = cell->breaks; - - struct line *lines = linebreaks->lines; - - EFont *font; - - font = text_view->font; - - y = text_view->yofs + ect->y; - y += (line - lines) * e_font_height (font); - - return y; -} - -/* fixme: Handle Font attributes */ -/* position is in BYTES */ - -static void -_get_xy_from_position (CurrentCell *cell, gint position, gint *xp, gint *yp) -{ - if (xp || yp) { - struct line *lines; - int x, y; - int j; - ECellTextView *text_view = cell->text_view; - ECellTextLineBreaks *linebreaks; - EFont *font; - - font = text_view->font; - - split_into_lines (cell); - - linebreaks = cell->breaks; - lines = linebreaks->lines; - - x = get_line_xpos (cell, lines); - y = get_line_ypos (cell, lines); - for (j = 0, lines = linebreaks->lines; j < linebreaks->num_lines; lines++, j++) { - if (lines->text > cell->text + position) - break; - y += e_font_height (font); - } - lines --; - y -= e_font_descent (font); - - x += e_font_utf8_text_width (font, cell->style, - lines->text, - position - (lines->text - cell->text)); - if ((CellEdit *) cell == cell->text_view->edit){ - x -= ((CellEdit *)cell)->xofs_edit; - y -= ((CellEdit *)cell)->yofs_edit; - } - if (xp) - *xp = x; - if (yp) - *yp = y; - unref_lines (cell); - } -} - -static gint -_get_position_from_xy (CurrentCell *cell, gint x, gint y) -{ - int i, j; - int xpos, ypos; - struct line *lines; - int return_val; - gchar *p; - - ECellTextView *text_view = cell->text_view; - ECellTextLineBreaks *linebreaks; - EFont *font; - - font = text_view->font; - - split_into_lines (cell); - - linebreaks = cell->breaks; - - lines = linebreaks->lines; - - if ((CellEdit *) cell == cell->text_view->edit){ - x += ((CellEdit *)cell)->xofs_edit; - y += ((CellEdit *)cell)->yofs_edit; - } - - ypos = get_line_ypos (cell, linebreaks->lines); - j = 0; - while (y > ypos) { - ypos += e_font_height (font); - j ++; - } - j--; - if (j >= linebreaks->num_lines) - j = linebreaks->num_lines - 1; - if (j < 0) - j = 0; - i = 0; - - lines += j; - xpos = get_line_xpos (cell, lines); - - for (p = lines->text; p < lines->text + lines->length; p = unicode_next_utf8 (p)) { - gint charwidth; - - charwidth = e_font_utf8_char_width (font, cell->style, p); - - xpos += charwidth / 2; - if (xpos > x) { - break; - } - xpos += (charwidth + 1) / 2; - } - - return_val = p - cell->text; - - unref_lines (cell); - - return return_val; -} - -#define SCROLL_WAIT_TIME 30000 - -static gboolean -_blink_scroll_timeout (gpointer data) -{ - ECellTextView *text_view = (ECellTextView *) data; - ECellText *ect = E_CELL_TEXT (((ECellView *)text_view)->ecell); - CellEdit *edit = text_view->edit; - CurrentCell *cell = CURRENT_CELL(edit); - - gulong current_time; - gboolean scroll = FALSE; - gboolean redraw = FALSE; - - g_timer_elapsed (edit->timer, ¤t_time); - - if (edit->scroll_start + SCROLL_WAIT_TIME > 1000000) { - if (current_time > edit->scroll_start - (1000000 - SCROLL_WAIT_TIME) && - current_time < edit->scroll_start) - scroll = TRUE; - } else { - if (current_time > edit->scroll_start + SCROLL_WAIT_TIME || - current_time < edit->scroll_start) - scroll = TRUE; - } - if (scroll && edit->button_down) { - /* FIXME: Copy this for y. */ - if (edit->lastx - ect->x > cell->width) { - ECellTextLineBreaks *linebreaks; - split_into_lines (cell); - linebreaks = cell->breaks; - if (edit->xofs_edit < linebreaks->max_width - cell->width) { - edit->xofs_edit += 4; - if (edit->xofs_edit > linebreaks->max_width - cell->width + 1) - edit->xofs_edit = linebreaks->max_width - cell->width + 1; - redraw = TRUE; - } - unref_lines (cell); - } - if (edit->lastx - ect->x < 0 && - edit->xofs_edit > 0) { - edit->xofs_edit -= 4; - if (edit->xofs_edit < 0) - edit->xofs_edit = 0; - redraw = TRUE; - } - if (redraw) { - ETextEventProcessorEvent e_tep_event; - e_tep_event.type = GDK_MOTION_NOTIFY; - e_tep_event.motion.state = edit->last_state; - e_tep_event.motion.time = 0; - e_tep_event.motion.position = _get_position_from_xy (cell, edit->lastx, edit->lasty); - _get_tep (edit); - e_text_event_processor_handle_event (edit->tep, - &e_tep_event); - edit->scroll_start = current_time; - } - } - - if (!((current_time / 500000) % 2)) { - if (!edit->show_cursor) - redraw = TRUE; - edit->show_cursor = TRUE; - } else { - if (edit->show_cursor) - redraw = TRUE; - edit->show_cursor = FALSE; - } - if (redraw){ - ect_queue_redraw (text_view, edit->cell.view_col, edit->cell.row); - } - return TRUE; -} - -static int -_get_position (ECellTextView *text_view, ETextEventProcessorCommand *command) -{ - int length; - int x, y; - CellEdit *edit = text_view->edit; - CurrentCell *cell = CURRENT_CELL(edit); - EFont *font; - gchar *p; - int unival; - - font = text_view->font; - - switch (command->position) { - - case E_TEP_VALUE: - return command->value; - - case E_TEP_SELECTION: - return edit->selection_end; - - case E_TEP_START_OF_BUFFER: - return 0; - - /* fixme: this probably confuses TEP */ - - case E_TEP_END_OF_BUFFER: - return strlen (cell->text); - - case E_TEP_START_OF_LINE: - - if (edit->selection_end < 1) return 0; - - p = unicode_previous_utf8 (cell->text, cell->text + edit->selection_end); - - if (p == cell->text) return 0; - - p = unicode_previous_utf8 (cell->text, p); - - while (p && p > cell->text) { - if (*p == '\n') return p - cell->text + 1; - p = unicode_previous_utf8 (cell->text, p); - } - - return 0; - - case E_TEP_END_OF_LINE: - - length = strlen (cell->text); - if (edit->selection_end >= length) return length; - - p = unicode_next_utf8 (cell->text + edit->selection_end); - - while (*p) { - if (*p == '\n') return p - cell->text; - p = unicode_next_utf8 (p); - } - - return p - cell->text; - - case E_TEP_FORWARD_CHARACTER: - - length = strlen (cell->text); - if (edit->selection_end >= length) return length; - - p = unicode_next_utf8 (cell->text + edit->selection_end); - - return p - cell->text; - - case E_TEP_BACKWARD_CHARACTER: - - if (edit->selection_end < 1) return 0; - - p = unicode_previous_utf8 (cell->text, cell->text + edit->selection_end); - - if (p == NULL) return 0; - - return p - cell->text; - - case E_TEP_FORWARD_WORD: - - length = strlen (cell->text); - if (edit->selection_end >= length) return length; - - p = unicode_next_utf8 (cell->text + edit->selection_end); - - while (*p) { - unicode_get_utf8 (p, &unival); - if (unicode_isspace (unival)) return p - cell->text; - p = unicode_next_utf8 (p); - } - - return p - cell->text; - - case E_TEP_BACKWARD_WORD: - - if (edit->selection_end < 1) return 0; - - p = unicode_previous_utf8 (cell->text, cell->text + edit->selection_end); - - if (p == cell->text) return 0; - - p = unicode_previous_utf8 (cell->text, p); - - while (p && p > cell->text) { - unicode_get_utf8 (p, &unival); - if (unicode_isspace (unival)) { - return (unicode_next_utf8 (p) - cell->text); - } - p = unicode_previous_utf8 (cell->text, p); - } - - return 0; - - case E_TEP_FORWARD_LINE: - _get_xy_from_position (cell, edit->selection_end, &x, &y); - y += e_font_height (font); - return _get_position_from_xy (cell, x, y); - case E_TEP_BACKWARD_LINE: - _get_xy_from_position (cell, edit->selection_end, &x, &y); - y -= e_font_height (font); - return _get_position_from_xy (cell, x, y); - - case E_TEP_FORWARD_PARAGRAPH: - case E_TEP_BACKWARD_PARAGRAPH: - - case E_TEP_FORWARD_PAGE: - case E_TEP_BACKWARD_PAGE: - return edit->selection_end; - default: - return edit->selection_end; - } - g_assert_not_reached (); - return 0; /* Kill warning */ -} - -static void -_delete_selection (ECellTextView *text_view) -{ - CellEdit *edit = text_view->edit; - CurrentCell *cell = CURRENT_CELL(edit); - gint length; - gchar *sp, *ep; - - if (edit->selection_end == edit->selection_start) return; - - if (edit->selection_end < edit->selection_start) { - edit->selection_end ^= edit->selection_start; - edit->selection_start ^= edit->selection_end; - edit->selection_end ^= edit->selection_start; - } - - sp = cell->text + edit->selection_start; - ep = cell->text + edit->selection_end; - length = strlen (ep) + 1; - - memmove (sp, ep, length); - - edit->selection_end = edit->selection_start; -} - -/* fixme: */ -/* NB! We expect value to be length IN BYTES */ - -static void -_insert (ECellTextView *text_view, char *string, int value) -{ - CellEdit *edit = text_view->edit; - CurrentCell *cell = CURRENT_CELL(edit); - char *temp; - - if (value <= 0) return; - - temp = g_new (gchar, strlen (cell->text) + value + 1); - - strncpy (temp, cell->text, edit->selection_start); - strncpy (temp + edit->selection_start, string, value); - strcpy (temp + edit->selection_start + value, cell->text + edit->selection_end); - - g_free (cell->text); - - cell->text = temp; - - edit->selection_start += value; - edit->selection_end = edit->selection_start; -} - -static void -e_cell_text_view_command (ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data) -{ - CellEdit *edit = (CellEdit *) data; - CurrentCell *cell = CURRENT_CELL(edit); - ECellTextView *text_view = cell->text_view; - - gboolean change = FALSE; - gboolean redraw = FALSE; - - int sel_start, sel_end; - EFont *font; - - font = text_view->font; - - switch (command->action) { - case E_TEP_MOVE: - edit->selection_start = _get_position (text_view, command); - edit->selection_end = edit->selection_start; - if (edit->timer) { - g_timer_reset (edit->timer); - } - redraw = TRUE; - break; - case E_TEP_SELECT: - edit->selection_end = _get_position (text_view, command); - sel_start = MIN(edit->selection_start, edit->selection_end); - sel_end = MAX(edit->selection_start, edit->selection_end); - if (sel_start != sel_end) { - e_cell_text_view_supply_selection (edit, command->time, GDK_SELECTION_PRIMARY, - cell->text + sel_start, - sel_end - sel_start); - } else if (edit->timer) { - g_timer_reset (edit->timer); - } - redraw = TRUE; - break; - case E_TEP_DELETE: - if (edit->selection_end == edit->selection_start) { - edit->selection_end = _get_position (text_view, command); - } - _delete_selection (text_view); - if (edit->timer) { - g_timer_reset (edit->timer); - } - redraw = TRUE; - change = TRUE; - break; - - case E_TEP_INSERT: - if (edit->selection_end != edit->selection_start) { - _delete_selection (text_view); - } - _insert (text_view, command->string, command->value); - if (edit->timer) { - g_timer_reset (edit->timer); - } - redraw = TRUE; - change = TRUE; - break; - case E_TEP_COPY: - sel_start = MIN(edit->selection_start, edit->selection_end); - sel_end = MAX(edit->selection_start, edit->selection_end); - if (sel_start != sel_end) { - e_cell_text_view_supply_selection (edit, command->time, clipboard_atom, - cell->text + sel_start, - sel_end - sel_start); - } - if (edit->timer) { - g_timer_reset (edit->timer); - } - break; - case E_TEP_PASTE: - e_cell_text_view_get_selection (edit, clipboard_atom, command->time); - if (edit->timer) { - g_timer_reset (edit->timer); - } - redraw = TRUE; - change = TRUE; - break; - case E_TEP_GET_SELECTION: - e_cell_text_view_get_selection (edit, GDK_SELECTION_PRIMARY, command->time); - break; - case E_TEP_ACTIVATE: - e_table_item_leave_edit (text_view->cell_view.e_table_item_view); - break; - case E_TEP_SET_SELECT_BY_WORD: - edit->select_by_word = command->value; - break; - case E_TEP_GRAB: - edit->actions = E_CELL_GRAB; - break; - case E_TEP_UNGRAB: - edit->actions = E_CELL_UNGRAB; - break; - case E_TEP_NOP: - break; - } - - if (!edit->button_down) { - int x; - int i; - struct line *lines; - ECellTextLineBreaks *linebreaks; - - split_into_lines (cell); - - linebreaks = cell->breaks; - - for (lines = linebreaks->lines, i = 0; i < linebreaks->num_lines ; i++, lines ++) { - if ((lines->text - cell->text) > edit->selection_end) { - break; - } - } - lines --; - x = e_font_utf8_text_width (font, cell->style, - lines->text, - edit->selection_end - (lines->text - cell->text)); - - - if (x < edit->xofs_edit) { - edit->xofs_edit = x; - redraw = TRUE; - } - - if (2 + x - cell->width > edit->xofs_edit) { - edit->xofs_edit = 2 + x - cell->width; - redraw = TRUE; - } - unref_lines (cell); - } - - if (redraw){ - ect_queue_redraw (text_view, edit->cell.view_col, edit->cell.row); - } -#if 0 - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text)); -#endif -} - -static void _invisible_destroy (GtkInvisible *invisible, - CellEdit *edit) -{ - edit->invisible = NULL; -} - -static GtkWidget *e_cell_text_view_get_invisible (CellEdit *edit) -{ - GtkWidget *invisible; - if (edit->invisible) { - invisible = edit->invisible; - } else { - invisible = gtk_invisible_new (); - edit->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), - edit); - gtk_signal_connect (GTK_OBJECT(invisible), "selection_clear_event", - GTK_SIGNAL_FUNC (_selection_clear_event), - edit); - gtk_signal_connect (GTK_OBJECT(invisible), "selection_received", - GTK_SIGNAL_FUNC (_selection_received), - edit); - - gtk_signal_connect (GTK_OBJECT(invisible), "destroy", - GTK_SIGNAL_FUNC (_invisible_destroy), - edit); - } - return invisible; -} - -static void -_selection_clear_event (GtkInvisible *invisible, - GdkEventSelection *event, - CellEdit *edit) -{ - if (event->selection == GDK_SELECTION_PRIMARY) { - g_free (edit->primary_selection); - edit->primary_selection = NULL; - edit->primary_length = 0; - - edit->has_selection = FALSE; -#if 0 - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text)); -#endif - - } else if (event->selection == clipboard_atom) { - g_free (edit->clipboard_selection); - edit->clipboard_selection = NULL; - edit->clipboard_length = 0; - } -} - -static void -_selection_get (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint info, - guint time_stamp, - CellEdit *edit) -{ - switch (info) { - case E_SELECTION_PRIMARY: - gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING, - 8, edit->primary_selection, edit->primary_length); - break; - case E_SELECTION_CLIPBOARD: - gtk_selection_data_set (selection_data, GDK_SELECTION_TYPE_STRING, - 8, edit->clipboard_selection, edit->clipboard_length); - break; - } -} - -/* fixme: What happens, if delivered string is not UTF-8? */ - -static void -_selection_received (GtkInvisible *invisible, - GtkSelectionData *selection_data, - guint time, - CellEdit *edit) -{ - 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_cell_text_view_command (edit->tep, &command, edit); - } -} - -static void -e_cell_text_view_supply_selection (CellEdit *edit, guint time, GdkAtom selection, char *data, gint length) -{ - gboolean successful; - GtkWidget *invisible; - - invisible = e_cell_text_view_get_invisible (edit); - - if (selection == GDK_SELECTION_PRIMARY){ - if (edit->primary_selection) { - g_free (edit->primary_selection); - } - edit->primary_selection = g_strndup (data, length); - edit->primary_length = length; - } else if (selection == clipboard_atom) { - if (edit->clipboard_selection) { - g_free (edit->clipboard_selection); - } - edit->clipboard_selection = g_strndup (data, length); - edit->clipboard_length = length; - } - - successful = gtk_selection_owner_set (invisible, - selection, - time); - - if (selection == GDK_SELECTION_PRIMARY) - edit->has_selection = successful; -} - -static void -e_cell_text_view_get_selection (CellEdit *edit, GdkAtom selection, guint32 time) -{ - GtkWidget *invisible; - invisible = e_cell_text_view_get_invisible (edit); - gtk_selection_convert (invisible, - selection, - GDK_SELECTION_TYPE_STRING, - time); -} - -static void -_get_tep (CellEdit *edit) -{ - if (!edit->tep) { - edit->tep = e_text_event_processor_emacs_like_new (); - gtk_object_ref (GTK_OBJECT (edit->tep)); - gtk_object_sink (GTK_OBJECT (edit->tep)); - gtk_signal_connect (GTK_OBJECT(edit->tep), - "command", - GTK_SIGNAL_FUNC(e_cell_text_view_command), - (gpointer) edit); - } -} - -static int -number_of_lines (char *text) -{ - int num_lines = 0; - gchar *p; - - if (!text) return 0; - - for (p = text; *p; p = unicode_next_utf8 (p)) { - if (*p == '\n') num_lines++; - } - - num_lines++; - return num_lines; -} - -/* Splits the text of the text item into lines */ -static void -split_into_lines (CurrentCell *cell) -{ - char *p; - struct line *lines; - gint len; - - char *text = cell->text; - ECellTextLineBreaks *linebreaks; - - if (! cell->breaks) { - cell->breaks = g_new (ECellTextLineBreaks, 1); - cell->breaks->ref_count = 1; - } else { - cell->breaks->ref_count ++; - return; - } - linebreaks = cell->breaks; - - /* Check if already split. */ - - linebreaks->lines = NULL; - linebreaks->num_lines = 0; - - if (!text) - return; - - /* First, count the number of lines */ - - linebreaks->num_lines = number_of_lines(cell->text); - - /* Allocate array of lines and calculate split positions */ - - linebreaks->lines = lines = g_new0 (struct line, linebreaks->num_lines); - - len = 0; - for (p = text; *p; p = unicode_next_utf8 (p)) { - if (len == 0) lines->text = p; - if (*p == '\n') { - lines->length = p - lines->text; - lines++; - len = 0; - } else - len++; - } - - if (len == 0) - lines->text = p; - lines->length = p - lines->text; - - calc_line_widths (cell); -} - -/* Free lines structure. */ -static void -unref_lines (CurrentCell *cell) -{ - if (cell->breaks){ - cell->breaks->ref_count --; - if (cell->breaks->ref_count <= 0){ - g_free (cell->breaks->lines); - g_free (cell->breaks); - cell->breaks = NULL; - } - } -} - -static void -calc_ellipsis (ECellTextView *text_view) -{ - ECellText *ect = E_CELL_TEXT (((ECellView *)text_view)->ecell); - EFont *font; - - font = text_view->font; - if (font) { - text_view->ellipsis_width[E_FONT_PLAIN] = - e_font_utf8_text_width (font, E_FONT_PLAIN, - ect->ellipsis ? ect->ellipsis : "...", - ect->ellipsis ? strlen (ect->ellipsis) : 3); - text_view->ellipsis_width[E_FONT_BOLD] = - e_font_utf8_text_width (font, E_FONT_BOLD, - ect->ellipsis ? ect->ellipsis : "...", - ect->ellipsis ? strlen (ect->ellipsis) : 3); - } -} - -/* Calculates the line widths (in pixels) of the text's splitted lines */ -static void -calc_line_widths (CurrentCell *cell) -{ - ECellTextView *text_view = cell->text_view; - ECellText *ect = E_CELL_TEXT (((ECellView *)text_view)->ecell); - ECellTextLineBreaks *linebreaks = cell->breaks; - struct line *lines; - int i; - int j; - EFont *font; - - font = text_view->font; - - lines = linebreaks->lines; - linebreaks->max_width = 0; - - if (!lines) return; - - for (i = 0; i < linebreaks->num_lines; i++) { - if (lines->length != 0) { - if (font) { - lines->width = e_font_utf8_text_width (font, cell->style, - lines->text, lines->length); - lines->ellipsis_length = 0; - } else { - lines->width = 0; - } - - if (ect->use_ellipsis && - (!(text_view->edit && - cell->row == text_view->edit->cell.row && - cell->view_col == text_view->edit->cell.view_col)) && - lines->width > cell->width) { - if (font) { - lines->ellipsis_length = 0; - for (j = 0; j < lines->length; j++){ - if (e_font_utf8_text_width (font, cell->style, lines->text, j) + - text_view->ellipsis_width[cell->style] < cell->width) { - lines->ellipsis_length = j; - } - else - break; - } - } - else - lines->ellipsis_length = 0; - lines->width = e_font_utf8_text_width (font, cell->style, lines->text, lines->ellipsis_length) + - text_view->ellipsis_width[cell->style]; - } - else - lines->ellipsis_length = lines->length; - - if (lines->width > linebreaks->max_width) - linebreaks->max_width = lines->width; - } else { - lines->width = 0; - lines->ellipsis_length = 0; - } - - lines++; - } -} - -static void -build_current_cell (CurrentCell *cell, ECellTextView *text_view, int model_col, int view_col, int row) -{ - ECellView *ecell_view = (ECellView *) text_view; - ECellText *ect = E_CELL_TEXT (ecell_view->ecell); - - cell->text_view = text_view; - cell->model_col = model_col; - cell->view_col = view_col; - cell->row = row; - cell->breaks = NULL; - - if (ect->filter) { - cell->text = (*ect->filter)(e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - } else { - cell->text = g_strdup (e_table_model_value_at (ecell_view->e_table_model, model_col, row)); - } - cell->width = e_table_header_get_column ( - ((ETableItem *)ecell_view->e_table_item_view)->header, - view_col)->width - 8; - cell->style = 0; -} - -static void -unbuild_current_cell (CurrentCell *cell) -{ - g_free(cell->text); - cell->text = NULL; -} - - -static GdkColor* -e_cell_text_get_color (ECellTextView *cell_view, gchar *color_spec) -{ - ECellText *ect = E_CELL_TEXT (((ECellView*) cell_view)->ecell); - GdkColormap *colormap; - GdkColor *color, tmp_color; - - /* If the color spec is NULL we use the default color. */ - if (color_spec == NULL) - return NULL; - - /* Create the hash table if we haven't already. */ - if (!ect->colors) - ect->colors = g_hash_table_new (g_str_hash, g_str_equal); - - /* See if we've already allocated the color. Note that we use a - special value of (GdkColor*) 1 in the hash to indicate that we've - already tried and failed to allocate the color, so we don't keep - trying to allocate it. */ - color = g_hash_table_lookup (ect->colors, color_spec); - if (color == (GdkColor*) 1) - return NULL; - if (color) - return color; - - /* Try to parse the color. */ - if (gdk_color_parse (color_spec, &tmp_color)) { - colormap = gtk_widget_get_colormap (GTK_WIDGET (cell_view->canvas)); - - /* Try to allocate the color. */ - if (gdk_color_alloc (colormap, &tmp_color)) - color = gdk_color_copy (&tmp_color); - } - - g_hash_table_insert (ect->colors, g_strdup (color_spec), - color ? color : (GdkColor*) 1); - return color; -} - |