/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball, Josh MacDonald, * Copyright (C) 1997-1998 Jay Painter * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include "../config.h" #include "gtkclist.h" /* the number rows memchunk expands at a time */ #define CLIST_OPTIMUM_SIZE 512 /* the width of the column resize windows */ #define DRAG_WIDTH 6 /* minimum allowed width of a column */ #define COLUMN_MIN_WIDTH 5 /* this defigns the base grid spacing */ #define CELL_SPACING 1 /* added the horizontal space at the beginning and end of a row*/ #define COLUMN_INSET 3 /* scrollbar spacing class macro */ #define SCROLLBAR_SPACING(w) (GTK_CLIST_CLASS (GTK_OBJECT (w)->klass)->scrollbar_spacing) /* gives the top pixel of the given row in context of * the clist's voffset */ #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \ (((row) + 1) * CELL_SPACING) + \ (clist)->voffset) /* returns the row index from a y pixel location in the * context of the clist's voffset */ #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \ ((clist)->row_height + CELL_SPACING)) /* gives the left pixel of the given column in context of * the clist's hoffset */ #define COLUMN_LEFT_XPIXEL(clist, column) ((clist)->column[(column)].area.x + \ (clist)->hoffset) /* returns the column index from a x pixel location in the * context of the clist's hoffset */ static inline gint COLUMN_FROM_XPIXEL (GtkCList * clist, gint x) { gint i, cx; for (i = 0; i < clist->columns; i++) { cx = clist->column[i].area.x + clist->hoffset; if (x >= (cx - (COLUMN_INSET + CELL_SPACING)) && x <= (cx + clist->column[i].area.width + COLUMN_INSET)) return i; } /* no match */ return -1; } /* returns the top pixel of the given row in the context of * the list height */ #define ROW_TOP(clist, row) (((clist)->row_height + CELL_SPACING) * (row)) /* returns the left pixel of the given column in the context of * the list width */ #define COLUMN_LEFT(clist, column) ((clist)->column[(column)].area.x) /* returns the total height of the list */ #define LIST_HEIGHT(clist) (((clist)->row_height * ((clist)->rows)) + \ (CELL_SPACING * ((clist)->rows + 1))) /* returns the total width of the list */ #define LIST_WIDTH(clist) ((clist)->column[(clist)->columns - 1].area.x + \ (clist)->column[(clist)->columns - 1].area.width + \ COLUMN_INSET + CELL_SPACING) /* Signals */ enum { SELECT_ROW, UNSELECT_ROW, CLICK_COLUMN, LAST_SIGNAL }; typedef void (*GtkCListSignal1) (GtkObject * object, gint arg1, gint arg2, GdkEventButton * arg3, gpointer data); typedef void (*GtkCListSignal2) (GtkObject * object, gint arg1, gpointer data); /* GtkCList Methods */ static void gtk_clist_class_init (GtkCListClass * klass); static void gtk_clist_init (GtkCList * clist); /* GtkObject Methods */ static void gtk_clist_destroy (GtkObject * object); static void gtk_clist_finalize (GtkObject * object); /* GtkWidget Methods */ static void gtk_clist_realize (GtkWidget * widget); static void gtk_clist_unrealize (GtkWidget * widget); static void gtk_clist_map (GtkWidget * widget); static void gtk_clist_unmap (GtkWidget * widget); static void gtk_clist_draw (GtkWidget * widget, GdkRectangle * area); static gint gtk_clist_expose (GtkWidget * widget, GdkEventExpose * event); static gint gtk_clist_button_press (GtkWidget * widget, GdkEventButton * event); static gint gtk_clist_button_release (GtkWidget * widget, GdkEventButton * event); static gint gtk_clist_motion (GtkWidget * widget, GdkEventMotion * event); static void gtk_clist_size_request (GtkWidget * widget, GtkRequisition * requisition); static void gtk_clist_size_allocate (GtkWidget * widget, GtkAllocation * allocation); /* GtkContainer Methods */ static void gtk_clist_foreach (GtkContainer * container, GtkCallback callback, gpointer callback_data); /* Drawing */ static void draw_row (GtkCList * clist, GdkRectangle * area, gint row, GtkCListRow * clist_row); static void draw_rows (GtkCList * clist, GdkRectangle * area); /* Size Allocation */ static void size_allocate_title_buttons (GtkCList * clist); static void size_allocate_columns (GtkCList * clist); /* Selection */ static void real_select_row (GtkCList * clist, gint row, gint column, GdkEventButton * event); static void real_unselect_row (GtkCList * clist, gint row, gint column, GdkEventButton * event); static gint get_selection_info (GtkCList * clist, gint x, gint y, gint * row, gint * column); /* Resize Columns */ static void draw_xor_line (GtkCList * clist); static gint new_column_width (GtkCList * clist, gint column, gint * x, gint * visible); static void resize_column (GtkCList * clist, gint column, gint width); /* Buttons */ static void column_button_create (GtkCList * clist, gint column); static void column_button_clicked (GtkWidget * widget, gpointer data); /* Scrollbars */ static void create_scrollbars (GtkCList * clist); static void adjust_scrollbars (GtkCList * clist); static void check_exposures (GtkCList * clist); static void vadjustment_changed (GtkAdjustment * adjustment, gpointer data); static void vadjustment_value_changed (GtkAdjustment * adjustment, gpointer data); static void hadjustment_changed (GtkAdjustment * adjustment, gpointer data); static void hadjustment_value_changed (GtkAdjustment * adjustment, gpointer data); /* Memory Allocation/Distruction Routines */ static GtkCListColumn *columns_new (GtkCList * clist); static void column_title_new (GtkCList * clist, gint column, gchar * title); static void columns_delete (GtkCList * clist); static GtkCListRow *row_new (GtkCList * clist); static void row_delete (GtkCList * clist, GtkCListRow * clist_row); static void cell_empty (GtkCList * clist, GtkCListRow * clist_row, gint column); static void cell_set_text (GtkCList * clist, GtkCListRow * clist_row, gint column, gchar * text); static void cell_set_pixmap (GtkCList * clist, GtkCListRow * clist_row, gint column, GdkPixmap * pixmap, GdkBitmap * mask); static void cell_set_pixtext (GtkCList * clist, GtkCListRow * clist_row, gint column, gchar * text, guint8 spacing, GdkPixmap * pixmap, GdkBitmap * mask); /* Signals */ static void gtk_clist_marshal_signal_1 (GtkObject * object, GtkSignalFunc func, gpointer func_data, GtkArg * args); static void gtk_clist_marshal_signal_2 (GtkObject * object, GtkSignalFunc func, gpointer func_data, GtkArg * args); /* Fill in data after widget is realized and has style */ static void add_style_data (GtkCList * clist); static GtkContainerClass *parent_class = NULL; static gint clist_signals[LAST_SIGNAL] = {0}; guint gtk_clist_get_type () { static guint clist_type = 0; if (!clist_type) { GtkTypeInfo clist_info = { "GtkCList", sizeof (GtkCList), sizeof (GtkCListClass), (GtkClassInitFunc) gtk_clist_class_init, (GtkObjectInitFunc) gtk_clist_init, (GtkArgSetFunc) NULL, (GtkArgGetFunc) NULL, }; clist_type = gtk_type_unique (gtk_container_get_type (), &clist_info); } return clist_type; } static void gtk_clist_class_init (GtkCListClass * klass) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; object_class = (GtkObjectClass *) klass; widget_class = (GtkWidgetClass *) klass; container_class = (GtkContainerClass *) klass; parent_class = gtk_type_class (gtk_container_get_type ()); clist_signals[SELECT_ROW] = gtk_signal_new ("select_row", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (GtkCListClass, select_row), gtk_clist_marshal_signal_1, GTK_TYPE_NONE, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_POINTER); clist_signals[UNSELECT_ROW] = gtk_signal_new ("unselect_row", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (GtkCListClass, unselect_row), gtk_clist_marshal_signal_1, GTK_TYPE_NONE, 3, GTK_TYPE_INT, GTK_TYPE_INT, GTK_TYPE_POINTER); clist_signals[CLICK_COLUMN] = gtk_signal_new ("click_column", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (GtkCListClass, click_column), gtk_clist_marshal_signal_2, GTK_TYPE_NONE, 1, GTK_TYPE_INT); gtk_object_class_add_signals (object_class, clist_signals, LAST_SIGNAL); object_class->destroy = gtk_clist_destroy; object_class->finalize = gtk_clist_finalize; widget_class->realize = gtk_clist_realize; widget_class->unrealize = gtk_clist_unrealize; widget_class->map = gtk_clist_map; widget_class->unmap = gtk_clist_unmap; widget_class->draw = gtk_clist_draw; widget_class->button_press_event = gtk_clist_button_press; widget_class->button_release_event = gtk_clist_button_release; widget_class->motion_notify_event = gtk_clist_motion; widget_class->expose_event = gtk_clist_expose; widget_class->size_request = gtk_clist_size_request; widget_class->size_allocate = gtk_clist_size_allocate; container_class->add = NULL; container_class->remove = NULL; container_class->foreach = gtk_clist_foreach; klass->select_row = real_select_row; klass->unselect_row = real_unselect_row; klass->click_column = NULL; klass->scrollbar_spacing = 5; } static void gtk_clist_marshal_signal_1 (GtkObject * object, GtkSignalFunc func, gpointer func_data, GtkArg * args) { GtkCListSignal1 rfunc; rfunc = (GtkCListSignal1) func; (*rfunc) (object, GTK_VALUE_INT (args[0]), GTK_VALUE_INT (args[1]), GTK_VALUE_POINTER (args[2]), func_data); } static void gtk_clist_marshal_signal_2 (GtkObject * object, GtkSignalFunc func, gpointer func_data, GtkArg * args) { GtkCListSignal2 rfunc; rfunc = (GtkCListSignal2) func; (*rfunc) (object, GTK_VALUE_INT (args[0]), func_data); } static void gtk_clist_init (GtkCList * clist) { clist->flags = 0; GTK_WIDGET_UNSET_FLAGS (clist, GTK_NO_WINDOW); GTK_CLIST_SET_FLAGS (clist, CLIST_FROZEN); clist->rows = 0; clist->row_center_offset = 0; clist->row_height = 0; clist->row_list = NULL; clist->row_list_end = NULL; clist->columns = 0; clist->title_window = NULL; clist->column_title_area.x = 0; clist->column_title_area.y = 0; clist->column_title_area.width = 0; clist->column_title_area.height = 0; clist->clist_window = NULL; clist->clist_window_width = 0; clist->clist_window_height = 0; clist->hoffset = 0; clist->voffset = 0; clist->shadow_type = GTK_SHADOW_IN; clist->hscrollbar_policy = GTK_POLICY_ALWAYS; clist->vscrollbar_policy = GTK_POLICY_ALWAYS; clist->cursor_drag = NULL; clist->xor_gc = NULL; clist->fg_gc = NULL; clist->bg_gc = NULL; clist->x_drag = 0; clist->selection_mode = GTK_SELECTION_SINGLE; clist->selection = NULL; } /* * GTKCLIST PUBLIC INTERFACE * gtk_clist_new_with_titles * gtk_clist_new */ GtkWidget * gtk_clist_new_with_titles (int columns, gchar * titles[]) { int i; GtkWidget *widget; GtkCList *clist; if (titles == NULL) return NULL; widget = gtk_clist_new (columns); if (!widget) return NULL; else clist = GTK_CLIST (widget); /* set column titles */ GTK_CLIST_SET_FLAGS (clist, CLIST_SHOW_TITLES); for (i = 0; i < columns; i++) { gtk_clist_set_column_title (clist, i, titles[i]); } return widget; } GtkWidget * gtk_clist_new (int columns) { GtkCList *clist; /* sanity check */ if (columns < 1) return NULL; clist = gtk_type_new (gtk_clist_get_type ()); GTK_CLIST_UNSET_FLAGS (clist, CLIST_SHOW_TITLES); /* initalize memory chunks */ clist->row_mem_chunk = g_mem_chunk_new ("clist row mem chunk", sizeof (GtkCListRow), sizeof (GtkCListRow) * CLIST_OPTIMUM_SIZE, G_ALLOC_AND_FREE); clist->cell_mem_chunk = g_mem_chunk_new ("clist cell mem chunk", sizeof (GtkCell) * columns, sizeof (GtkCell) * columns * CLIST_OPTIMUM_SIZE, G_ALLOC_AND_FREE); /* set number of columns, allocate memory */ clist->columns = columns; clist->column = columns_new (clist); /* there needs to be at least one column button * because there is alot of code that will break if it * isn't there*/ column_button_create (clist, 0); /* create scrollbars */ create_scrollbars (clist); return GTK_WIDGET (clist); } void gtk_clist_set_border (GtkCList * clist, GtkShadowType border) { g_return_if_fail (clist != NULL); clist->shadow_type = border; if (GTK_WIDGET_VISIBLE (clist)) gtk_widget_queue_resize (GTK_WIDGET (clist)); } void gtk_clist_set_selection_mode (GtkCList * clist, GtkSelectionMode mode) { g_return_if_fail (clist != NULL); clist->selection_mode = mode; } void gtk_clist_freeze (GtkCList * clist) { g_return_if_fail (clist != NULL); GTK_CLIST_SET_FLAGS (clist, CLIST_FROZEN); } void gtk_clist_thaw (GtkCList * clist) { g_return_if_fail (clist != NULL); GTK_CLIST_UNSET_FLAGS (clist, CLIST_FROZEN); adjust_scrollbars (clist); draw_rows (clist, NULL); } void gtk_clist_column_titles_show (GtkCList * clist) { g_return_if_fail (clist != NULL); if (!GTK_CLIST_SHOW_TITLES (clist)) { GTK_CLIST_SET_FLAGS (clist, CLIST_SHOW_TITLES); gdk_window_show (clist->title_window); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } void gtk_clist_column_titles_hide (GtkCList * clist) { g_return_if_fail (clist != NULL); if (GTK_CLIST_SHOW_TITLES (clist)) { GTK_CLIST_UNSET_FLAGS (clist, CLIST_SHOW_TITLES); gdk_window_hide (clist->title_window); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } void gtk_clist_column_title_active (GtkCList * clist, gint column) { g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; if (!GTK_WIDGET_SENSITIVE (clist->column[column].button) || !GTK_WIDGET_CAN_FOCUS (clist->column[column].button)) { GTK_WIDGET_SET_FLAGS (clist->column[column].button, GTK_SENSITIVE | GTK_CAN_FOCUS); if (GTK_WIDGET_VISIBLE (clist)) gtk_widget_queue_draw (clist->column[column].button); } } void gtk_clist_column_title_passive (GtkCList * clist, gint column) { g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; if (GTK_WIDGET_SENSITIVE (clist->column[column].button) || GTK_WIDGET_CAN_FOCUS (clist->column[column].button)) { GTK_WIDGET_UNSET_FLAGS (clist->column[column].button, GTK_SENSITIVE | GTK_CAN_FOCUS); if (GTK_WIDGET_VISIBLE (clist)) gtk_widget_queue_draw (clist->column[column].button); } } void gtk_clist_column_titles_active (GtkCList * clist) { gint i; g_return_if_fail (clist != NULL); for (i = 0; i < clist->columns; i++) if (clist->column[i].button) gtk_clist_column_title_active (clist, i); } void gtk_clist_column_titles_passive (GtkCList * clist) { gint i; g_return_if_fail (clist != NULL); for (i = 0; i < clist->columns; i++) if (clist->column[i].button) gtk_clist_column_title_passive (clist, i); } void gtk_clist_set_column_title (GtkCList * clist, gint column, gchar * title) { gint new_button = 0; GtkWidget *old_widget; GtkWidget *alignment = NULL; GtkWidget *label; g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; /* if the column button doesn't currently exist, * it has to be created first */ if (!clist->column[column].button) { column_button_create (clist, column); new_button = 1; } column_title_new (clist, column, title); /* remove and destroy the old widget */ old_widget = GTK_BUTTON (clist->column[column].button)->child; if (old_widget) { gtk_container_remove (GTK_CONTAINER (clist->column[column].button), old_widget); gtk_widget_destroy (old_widget); } /* create new alignment based no column justification */ switch (clist->column[column].justification) { case GTK_JUSTIFY_LEFT: alignment = gtk_alignment_new (0.0, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_RIGHT: alignment = gtk_alignment_new (1.0, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_CENTER: alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_FILL: alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0); break; } label = gtk_label_new (clist->column[column].title); gtk_container_add (GTK_CONTAINER (alignment), label); gtk_container_add (GTK_CONTAINER (clist->column[column].button), alignment); gtk_widget_show (label); gtk_widget_show (alignment); /* if this button didn't previously exist, then the * column button positions have to be re-computed */ if (GTK_WIDGET_VISIBLE (clist) && new_button) size_allocate_title_buttons (clist); } void gtk_clist_set_column_widget (GtkCList * clist, gint column, GtkWidget * widget) { gint new_button = 0; GtkWidget *old_widget; g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; /* if the column button doesn't currently exist, * it has to be created first */ if (!clist->column[column].button) { column_button_create (clist, column); new_button = 1; } column_title_new (clist, column, NULL); /* remove and destroy the old widget */ old_widget = GTK_BUTTON (clist->column[column].button)->child; if (old_widget) { gtk_container_remove (GTK_CONTAINER (clist->column[column].button), old_widget); gtk_widget_destroy (old_widget); } /* add and show the widget */ if (widget) { gtk_container_add (GTK_CONTAINER (clist->column[column].button), widget); gtk_widget_show (widget); } /* if this button didn't previously exist, then the * column button positions have to be re-computed */ if (GTK_WIDGET_VISIBLE (clist) && new_button) size_allocate_title_buttons (clist); } void gtk_clist_set_column_justification (GtkCList * clist, gint column, GtkJustification justification) { GtkWidget *alignment; g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; clist->column[column].justification = justification; /* change the alinment of the button title if it's not a * custom widget */ if (clist->column[column].title) { alignment = GTK_BUTTON (clist->column[column].button)->child; switch (clist->column[column].justification) { case GTK_JUSTIFY_LEFT: gtk_alignment_set (GTK_ALIGNMENT (alignment), 0.0, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_RIGHT: gtk_alignment_set (GTK_ALIGNMENT (alignment), 1.0, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_CENTER: gtk_alignment_set (GTK_ALIGNMENT (alignment), 0.5, 0.5, 0.0, 0.0); break; case GTK_JUSTIFY_FILL: gtk_alignment_set (GTK_ALIGNMENT (alignment), 0.5, 0.5, 0.0, 0.0); break; default: break; } } if (!GTK_CLIST_FROZEN (clist)) draw_rows (clist, NULL); } void gtk_clist_set_column_width (GtkCList * clist, gint column, gint width) { g_return_if_fail (clist != NULL); if (column < 0 || column >= clist->columns) return; clist->column[column].width = width; clist->column[column].width_set = TRUE; /* FIXME: this is quite expensive to do if the widget hasn't * been size_allocated yet, and pointless. Should * a flag be kept */ size_allocate_columns (clist); size_allocate_title_buttons (clist); if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); draw_rows (clist, NULL); } } void gtk_clist_set_row_height (GtkCList * clist, gint height) { gint text_height; g_return_if_fail (clist != NULL); if (height > 0) clist->row_height = height; else return; GTK_CLIST_SET_FLAGS (clist, CLIST_ROW_HEIGHT_SET); if (GTK_WIDGET_REALIZED (clist)) { text_height = height - (GTK_WIDGET (clist)->style->font->ascent + GTK_WIDGET (clist) ->style->font->descent + 1); clist->row_center_offset = (text_height / 2) + GTK_WIDGET (clist)->style->font->ascent + 1.5; } if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); draw_rows (clist, NULL); } } void gtk_clist_moveto (GtkCList * clist, gint row, gint column, gfloat row_align, gfloat col_align) { gint x, y; g_return_if_fail (clist != NULL); if (row < -1 || row >= clist->rows) return; if (column < -1 || column >= clist->columns) return; /* adjust vertical scrollbar */ if (row >= 0) { x = ROW_TOP (clist, row) - (row_align * (clist->clist_window_height - (clist->row_height + 2 * CELL_SPACING))); if (x < 0) GTK_RANGE (clist->vscrollbar)->adjustment->value = 0.0; else if (x > LIST_HEIGHT (clist) - clist->clist_window_height) GTK_RANGE (clist->vscrollbar)->adjustment->value = LIST_HEIGHT (clist) - clist->clist_window_height; else GTK_RANGE (clist->vscrollbar)->adjustment->value = x; gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->vscrollbar)->adjustment), "value_changed"); } /* adjust horizontal scrollbar */ if (column >= 0) { y = COLUMN_LEFT (clist, column) - (col_align * (clist->clist_window_width - clist->column[column].area.width + 2 * (CELL_SPACING + COLUMN_INSET))); if (y < 0) GTK_RANGE (clist->hscrollbar)->adjustment->value = 0.0; else if (y > LIST_WIDTH (clist) - clist->clist_window_width) GTK_RANGE (clist->hscrollbar)->adjustment->value = LIST_WIDTH (clist) - clist->clist_window_width; else GTK_RANGE (clist->hscrollbar)->adjustment->value = y; gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->hscrollbar)->adjustment), "value_changed"); } } GtkCellType gtk_clist_get_cell_type (GtkCList * clist, gint row, gint column) { GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, -1); if (row < 0 || row >= clist->rows) return -1; if (column < 0 || column >= clist->columns) return -1; clist_row = (g_list_nth (clist->row_list, row))->data; return clist_row->cell[column].type; } void gtk_clist_set_text (GtkCList * clist, gint row, gint column, gchar * text) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < 0 || column >= clist->columns) return; clist_row = (g_list_nth (clist->row_list, row))->data; /* if text is null, then the cell is empty */ if (text) cell_set_text (clist, clist_row, column, text); else cell_empty (clist, clist_row, column); /* redraw the list if it's not frozen */ if (!GTK_CLIST_FROZEN (clist)) { if (gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } } gint gtk_clist_get_text (GtkCList * clist, gint row, gint column, gchar ** text) { GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, 0); if (row < 0 || row >= clist->rows) return 0; if (column < 0 || column >= clist->columns) return 0; clist_row = (g_list_nth (clist->row_list, row))->data; if (clist_row->cell[column].type != GTK_CELL_TEXT) return 0; if (text) *text = GTK_CELL_TEXT (clist_row->cell[column])->text; return 1; } void gtk_clist_set_pixmap (GtkCList * clist, gint row, gint column, GdkPixmap * pixmap, GdkBitmap * mask) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < 0 || column >= clist->columns) return; clist_row = (g_list_nth (clist->row_list, row))->data; gdk_pixmap_ref (pixmap); gdk_pixmap_ref (mask); cell_set_pixmap (clist, clist_row, column, pixmap, mask); /* redraw the list if it's not frozen */ if (!GTK_CLIST_FROZEN (clist)) { if (gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } } gint gtk_clist_get_pixmap (GtkCList * clist, gint row, gint column, GdkPixmap ** pixmap, GdkBitmap ** mask) { GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, 0); if (row < 0 || row >= clist->rows) return 0; if (column < 0 || column >= clist->columns) return 0; clist_row = (g_list_nth (clist->row_list, row))->data; if (clist_row->cell[column].type != GTK_CELL_PIXMAP) return 0; if (pixmap) *pixmap = GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap; if (mask) *mask = GTK_CELL_PIXMAP (clist_row->cell[column])->mask; return 1; } void gtk_clist_set_pixtext (GtkCList * clist, gint row, gint column, gchar * text, guint8 spacing, GdkPixmap * pixmap, GdkBitmap * mask) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < 0 || column >= clist->columns) return; clist_row = (g_list_nth (clist->row_list, row))->data; gdk_pixmap_ref (pixmap); gdk_pixmap_ref (mask); cell_set_pixtext (clist, clist_row, column, text, spacing, pixmap, mask); /* redraw the list if it's not frozen */ if (!GTK_CLIST_FROZEN (clist)) { if (gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } } gint gtk_clist_get_pixtext (GtkCList * clist, gint row, gint column, gchar ** text, guint8 * spacing, GdkPixmap ** pixmap, GdkBitmap ** mask) { GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, 0); if (row < 0 || row >= clist->rows) return 0; if (column < 0 || column >= clist->columns) return 0; clist_row = (g_list_nth (clist->row_list, row))->data; if (clist_row->cell[column].type != GTK_CELL_PIXTEXT) return 0; if (text) *text = GTK_CELL_PIXTEXT (clist_row->cell[column])->text; if (spacing) *spacing = GTK_CELL_PIXTEXT (clist_row->cell[column])->spacing; if (pixmap) *pixmap = GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap; if (mask) *mask = GTK_CELL_PIXTEXT (clist_row->cell[column])->mask; return 1; } void gtk_clist_set_foreground (GtkCList * clist, gint row, GdkColor * color) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); g_return_if_fail (color != NULL); if (row < 0 || row >= clist->rows) return; clist_row = (g_list_nth (clist->row_list, row))->data; clist_row->foreground = *color; clist_row->fg_set = TRUE; if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } void gtk_clist_set_background (GtkCList * clist, gint row, GdkColor * color) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); g_return_if_fail (color != NULL); if (row < 0 || row >= clist->rows) return; clist_row = (g_list_nth (clist->row_list, row))->data; clist_row->background = *color; clist_row->bg_set = TRUE; if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } void gtk_clist_set_shift (GtkCList * clist, gint row, gint column, gint vertical, gint horizontal) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < 0 || column >= clist->columns) return; clist_row = (g_list_nth (clist->row_list, row))->data; clist_row->cell[column].vertical = vertical; clist_row->cell[column].horizontal = horizontal; if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } gint gtk_clist_append (GtkCList * clist, gchar * text[]) { gint i; GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, -1); clist_row = row_new (clist); clist->rows++; /* set the text in the row's columns */ if (text) for (i = 0; i < clist->columns; i++) if (text[i]) cell_set_text (clist, clist_row, i, text[i]); /* keeps track of the end of the list so the list * doesn't have to be traversed every time a item is added */ if (!clist->row_list) { clist->row_list = g_list_append (clist->row_list, clist_row); clist->row_list_end = clist->row_list; /* check the selection mode to see if we should select * the first row automaticly */ switch (clist->selection_mode) { case GTK_SELECTION_BROWSE: gtk_clist_select_row (clist, 0, -1); break; default: break; } } else clist->row_list_end = (g_list_append (clist->row_list_end, clist_row))->next; /* redraw the list if it's not frozen */ if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); if (gtk_clist_row_isvisable (clist, clist->rows - 1)) draw_rows (clist, NULL); } /* return index of the row */ return clist->rows - 1; } void gtk_clist_insert (GtkCList * clist, gint row, gchar * text[]) { gint i; GtkCListRow *clist_row; g_return_if_fail (clist != NULL); g_return_if_fail (text != NULL); /* return if out of bounds */ if (row < 0 || row > (clist->rows - 1)) return; /* create the row */ clist_row = row_new (clist); /* set the text in the row's columns */ if (text) for (i = 0; i < clist->columns; i++) if (text[i]) cell_set_text (clist, clist_row, i, text[i]); /* reset the row end pointer if we're inserting at the * end of the list */ if (row == clist->rows) clist->row_list_end = (g_list_append (clist->row_list_end, clist_row))->next; else clist->row_list = g_list_insert (clist->row_list, clist_row, row); clist->rows++; /* redraw the list if it isn't frozen */ if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); if (gtk_clist_row_isvisable (clist, row)) draw_rows (clist, NULL); } } void gtk_clist_remove (GtkCList * clist, gint row) { gint was_visible; GList *list; GtkCListRow *clist_row; g_return_if_fail (clist != NULL); /* return if out of bounds */ if (row < 0 || row > (clist->rows - 1)) return; was_visible = gtk_clist_row_isvisable (clist, row); /* get the row we're going to delete */ list = g_list_nth (clist->row_list, row); clist_row = list->data; /* reset the row end pointer if we're removing at the * end of the list */ if (row == clist->rows - 1) clist->row_list_end = list->prev; clist->row_list = g_list_remove (clist->row_list, clist_row); clist->rows--; /* redraw the row if it isn't frozen */ if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); if (was_visible) draw_rows (clist, NULL); } if (clist_row->state == GTK_STATE_SELECTED) { switch (clist->selection_mode) { case GTK_SELECTION_BROWSE: if (row >= clist->rows) row--; gtk_clist_select_row (clist, row, -1); break; default: break; } /* remove from selection list */ clist->selection = g_list_remove (clist->selection, clist_row); } row_delete (clist, clist_row); } void gtk_clist_clear (GtkCList * clist) { GList *list; GtkCListRow *clist_row; g_return_if_fail (clist != NULL); /* remove all the rows */ list = clist->row_list; while (list) { clist_row = list->data; list = list->next; row_delete (clist, clist_row); } g_list_free (clist->row_list); /* free up the selection list */ g_list_free (clist->selection); clist->row_list = NULL; clist->row_list_end = NULL; clist->selection = NULL; clist->voffset = 0; clist->rows = 0; /* zero-out the scrollbars */ if (clist->vscrollbar) { GTK_RANGE (clist->vscrollbar)->adjustment->value = 0.0; gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->vscrollbar)->adjustment), "changed"); if (!GTK_CLIST_FROZEN (clist)) { adjust_scrollbars (clist); draw_rows (clist, NULL); } } } void gtk_clist_set_row_data (GtkCList * clist, gint row, gpointer data) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row > (clist->rows - 1)) return; clist_row = (g_list_nth (clist->row_list, row))->data; clist_row->data = data; /* * re-send the selected signal if data is changed/added * so the application can respond to the new data -- * this could be questionable behavior */ if (clist_row->state == GTK_STATE_SELECTED) gtk_clist_select_row (clist, 0, 0); } gpointer gtk_clist_get_row_data (GtkCList * clist, gint row) { GtkCListRow *clist_row; g_return_val_if_fail (clist != NULL, NULL); if (row < 0 || row > (clist->rows - 1)) return NULL; clist_row = (g_list_nth (clist->row_list, row))->data; return clist_row->data; } gint gtk_clist_find_row_from_data (GtkCList * clist, gpointer data) { GList *list; gint n; g_return_val_if_fail (clist != NULL, -1); g_return_val_if_fail (GTK_IS_CLIST (clist), -1); if (clist->rows < 1) return -1; /* is this an optimization or just worthless? */ n = 0; list = clist->row_list; while (list) { GtkCListRow *clist_row; clist_row = list->data; if (clist_row->data == data) break; n++; list = list->next; } if (list) return n; return -1; } void gtk_clist_select_row (GtkCList * clist, gint row, gint column) { g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < -1 || column >= clist->columns) return; gtk_signal_emit (GTK_OBJECT (clist), clist_signals[SELECT_ROW], row, column, NULL); } void gtk_clist_unselect_row (GtkCList * clist, gint row, gint column) { g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; if (column < -1 || column >= clist->columns) return; gtk_signal_emit (GTK_OBJECT (clist), clist_signals[UNSELECT_ROW], row, column, NULL); } gint gtk_clist_row_isvisable (GtkCList * clist, gint row) { g_return_val_if_fail (clist != NULL, 0); if (row < 0 || row >= clist->rows) return 0; if (clist->row_height == 0) return 0; if (row < ROW_FROM_YPIXEL (clist, 0)) return 0; if (row > ROW_FROM_YPIXEL (clist, clist->clist_window_height)) return 0; return 1; } GtkAdjustment * gtk_clist_get_vadjustment (GtkCList * clist) { g_return_val_if_fail (clist != NULL, NULL); g_return_val_if_fail (GTK_IS_CLIST (clist), NULL); return gtk_range_get_adjustment (GTK_RANGE (clist->vscrollbar)); } GtkAdjustment * gtk_clist_get_hadjustment (GtkCList * clist) { g_return_val_if_fail (clist != NULL, NULL); g_return_val_if_fail (GTK_IS_CLIST (clist), NULL); return gtk_range_get_adjustment (GTK_RANGE (clist->hscrollbar)); } void gtk_clist_set_policy (GtkCList * clist, GtkPolicyType vscrollbar_policy, GtkPolicyType hscrollbar_policy) { g_return_if_fail (clist != NULL); g_return_if_fail (GTK_IS_CLIST (clist)); if (clist->vscrollbar_policy != vscrollbar_policy) { clist->vscrollbar_policy = vscrollbar_policy; if (GTK_WIDGET (clist)->parent) gtk_widget_queue_resize (GTK_WIDGET (clist)); } if (clist->hscrollbar_policy != hscrollbar_policy) { clist->hscrollbar_policy = hscrollbar_policy; if (GTK_WIDGET (clist)->parent) gtk_widget_queue_resize (GTK_WIDGET (clist)); } } /* * GTKOBJECT * gtk_clist_destroy * gtk_clist_finalize */ static void gtk_clist_destroy (GtkObject * object) { gint i; GtkCList *clist; g_return_if_fail (object != NULL); g_return_if_fail (GTK_IS_CLIST (object)); clist = GTK_CLIST (object); /* freeze the list */ GTK_CLIST_SET_FLAGS (clist, CLIST_FROZEN); /* get rid of all the rows */ gtk_clist_clear (clist); /* Since we don't have a _remove method, unparent the children * instead of destroying them so the focus will be unset properly. * (For other containers, the _remove method takes care of the * unparent) The destroy will happen when the refcount drops * to zero. */ /* destroy the scrollbars */ if (clist->vscrollbar) { gtk_widget_unparent (clist->vscrollbar); clist->vscrollbar = NULL; } if (clist->hscrollbar) { gtk_widget_unparent (clist->hscrollbar); clist->hscrollbar = NULL; } /* destroy the column buttons */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button) { gtk_widget_unparent (clist->column[i].button); clist->column[i].button = NULL; } if (GTK_OBJECT_CLASS (parent_class)->destroy) (*GTK_OBJECT_CLASS (parent_class)->destroy) (object); } static void gtk_clist_finalize (GtkObject * object) { GtkCList *clist; g_return_if_fail (object != NULL); g_return_if_fail (GTK_IS_CLIST (object)); clist = GTK_CLIST (object); columns_delete (clist); g_mem_chunk_destroy (clist->cell_mem_chunk); g_mem_chunk_destroy (clist->row_mem_chunk); if (GTK_OBJECT_CLASS (parent_class)->finalize) (*GTK_OBJECT_CLASS (parent_class)->finalize) (object); } /* * GTKWIDGET * gtk_clist_realize * gtk_clist_unrealize * gtk_clist_map * gtk_clist_unmap * gtk_clist_draw * gtk_clist_expose * gtk_clist_button_press * gtk_clist_button_release * gtk_clist_button_motion * gtk_clist_size_request * gtk_clist_size_allocate */ static void gtk_clist_realize (GtkWidget * widget) { gint i; GtkCList *clist; GdkWindowAttr attributes; gint attributes_mask; GdkGCValues values; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); clist = GTK_CLIST (widget); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK); attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; /* main window */ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (widget->window, clist); widget->style = gtk_style_attach (widget->style, widget->window); gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); /* column-title window */ clist->title_window = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (clist->title_window, clist); gtk_style_set_background (widget->style, clist->title_window, GTK_STATE_SELECTED); gdk_window_show (clist->title_window); /* set things up so column buttons are drawn in title window */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button) gtk_widget_set_parent_window (clist->column[i].button, clist->title_window); /* clist-window */ clist->clist_window = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (clist->clist_window, clist); gdk_window_set_background (clist->clist_window, &widget->style->bg[GTK_STATE_PRELIGHT]); gdk_window_show (clist->clist_window); gdk_window_get_size (clist->clist_window, &clist->clist_window_width, &clist->clist_window_height); /* create resize windows */ attributes.wclass = GDK_INPUT_ONLY; attributes.event_mask = (GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK); attributes.cursor = clist->cursor_drag = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW); attributes_mask = GDK_WA_CURSOR; for (i = 0; i < clist->columns; i++) { clist->column[i].window = gdk_window_new (clist->title_window, &attributes, attributes_mask); gdk_window_set_user_data (clist->column[i].window, clist); gdk_window_show (clist->column[i].window); } /* GCs */ clist->fg_gc = gdk_gc_new (widget->window); clist->bg_gc = gdk_gc_new (widget->window); /* We'll use this gc to do scrolling as well */ gdk_gc_set_exposures (clist->fg_gc, TRUE); values.foreground = widget->style->white; values.function = GDK_XOR; values.subwindow_mode = GDK_INCLUDE_INFERIORS; clist->xor_gc = gdk_gc_new_with_values (widget->window, &values, GDK_GC_FOREGROUND | GDK_GC_FUNCTION | GDK_GC_SUBWINDOW); add_style_data (clist); } static void gtk_clist_unrealize (GtkWidget * widget) { gint i; GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); clist = GTK_CLIST (widget); GTK_CLIST_SET_FLAGS (clist, CLIST_FROZEN); gdk_cursor_destroy (clist->cursor_drag); gdk_gc_destroy (clist->xor_gc); gdk_gc_destroy (clist->fg_gc); gdk_gc_destroy (clist->bg_gc); for (i = 0; i < clist->columns; i++) if (clist->column[i].window) { gdk_window_set_user_data (clist->column[i].window, NULL); gdk_window_destroy (clist->column[i].window); clist->column[i].window = NULL; } gdk_window_set_user_data (clist->clist_window, NULL); gdk_window_destroy (clist->clist_window); clist->clist_window = NULL; gdk_window_set_user_data (clist->title_window, NULL); gdk_window_destroy (clist->title_window); clist->title_window = NULL; clist->cursor_drag = NULL; clist->xor_gc = NULL; clist->fg_gc = NULL; clist->bg_gc = NULL; if (GTK_WIDGET_CLASS (parent_class)->unrealize) (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void gtk_clist_map (GtkWidget * widget) { gint i; GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); clist = GTK_CLIST (widget); if (!GTK_WIDGET_MAPPED (widget)) { GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); gdk_window_show (widget->window); gdk_window_show (clist->title_window); gdk_window_show (clist->clist_window); /* map column buttons */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button && GTK_WIDGET_VISIBLE (clist->column[i].button) && !GTK_WIDGET_MAPPED (clist->column[i].button)) gtk_widget_map (clist->column[i].button); /* map resize windows AFTER column buttons (above) */ for (i = 0; i < clist->columns; i++) if (clist->column[i].window && clist->column[i].button) gdk_window_show (clist->column[i].window); /* map vscrollbars */ if (GTK_WIDGET_VISIBLE (clist->vscrollbar) && !GTK_WIDGET_MAPPED (clist->vscrollbar)) gtk_widget_map (clist->vscrollbar); if (GTK_WIDGET_VISIBLE (clist->hscrollbar) && !GTK_WIDGET_MAPPED (clist->hscrollbar)) gtk_widget_map (clist->hscrollbar); /* unfreeze the list */ GTK_CLIST_UNSET_FLAGS (clist, CLIST_FROZEN); } } static void gtk_clist_unmap (GtkWidget * widget) { gint i; GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); clist = GTK_CLIST (widget); if (GTK_WIDGET_MAPPED (widget)) { GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); for (i = 0; i < clist->columns; i++) if (clist->column[i].window) gdk_window_hide (clist->column[i].window); gdk_window_hide (clist->clist_window); gdk_window_hide (clist->title_window); gdk_window_hide (widget->window); /* unmap scrollbars */ if (GTK_WIDGET_MAPPED (clist->vscrollbar)) gtk_widget_unmap (clist->vscrollbar); if (GTK_WIDGET_MAPPED (clist->hscrollbar)) gtk_widget_unmap (clist->hscrollbar); /* unmap column buttons */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button && GTK_WIDGET_MAPPED (clist->column[i].button)) gtk_widget_unmap (clist->column[i].button); /* freeze the list */ GTK_CLIST_SET_FLAGS (clist, CLIST_FROZEN); } } static void gtk_clist_draw (GtkWidget * widget, GdkRectangle * area) { GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); g_return_if_fail (area != NULL); if (GTK_WIDGET_DRAWABLE (widget)) { clist = GTK_CLIST (widget); gdk_window_clear_area (widget->window, area->x, area->y, area->width, area->height); /* draw list shadow/border */ gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL, clist->shadow_type, 0, 0, clist->clist_window_width + (2 * widget->style->klass->xthickness), clist->clist_window_height + (2 * widget->style->klass->ythickness) + clist->column_title_area.height); gdk_window_clear_area (clist->clist_window, 0, 0, -1, -1); draw_rows (clist, NULL); } } static gint gtk_clist_expose (GtkWidget * widget, GdkEventExpose * event) { GtkCList *clist; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_CLIST (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (GTK_WIDGET_DRAWABLE (widget)) { clist = GTK_CLIST (widget); /* draw border */ if (event->window == widget->window) gtk_draw_shadow (widget->style, widget->window, GTK_STATE_NORMAL, clist->shadow_type, 0, 0, clist->clist_window_width + (2 * widget->style->klass->xthickness), clist->clist_window_height + (2 * widget->style->klass->ythickness) + clist->column_title_area.height); /* exposure events on the list */ if (event->window == clist->clist_window) draw_rows (clist, &event->area); } return FALSE; } static gint gtk_clist_button_press (GtkWidget * widget, GdkEventButton * event) { gint i; GtkCList *clist; gint x, y, row, column; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_CLIST (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); clist = GTK_CLIST (widget); /* selections on the list */ if (event->window == clist->clist_window) { x = event->x; y = event->y; if (get_selection_info (clist, x, y, &row, &column)) gtk_signal_emit (GTK_OBJECT (clist), clist_signals[SELECT_ROW], row, column, event); return FALSE; } /* press on resize windows */ for (i = 0; i < clist->columns; i++) if (clist->column[i].window && event->window == clist->column[i].window) { GTK_CLIST_SET_FLAGS (clist, CLIST_IN_DRAG); gtk_widget_get_pointer (widget, &clist->x_drag, NULL); gdk_pointer_grab (clist->column[i].window, FALSE, GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, NULL, NULL, event->time); draw_xor_line (clist); return FALSE; } return FALSE; } static gint gtk_clist_button_release (GtkWidget * widget, GdkEventButton * event) { gint i, x, width, visible; GtkCList *clist; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_CLIST (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); clist = GTK_CLIST (widget); /* release on resize windows */ if (GTK_CLIST_IN_DRAG (clist)) for (i = 0; i < clist->columns; i++) if (clist->column[i].window && event->window == clist->column[i].window) { GTK_CLIST_UNSET_FLAGS (clist, CLIST_IN_DRAG); gtk_widget_get_pointer (widget, &x, NULL); width = new_column_width (clist, i, &x, &visible); gdk_pointer_ungrab (event->time); if (visible) draw_xor_line (clist); resize_column (clist, i, width); return FALSE; } return FALSE; } static gint gtk_clist_motion (GtkWidget * widget, GdkEventMotion * event) { gint i, x, visible; GtkCList *clist; g_return_val_if_fail (widget != NULL, FALSE); g_return_val_if_fail (GTK_IS_CLIST (widget), FALSE); clist = GTK_CLIST (widget); if (GTK_CLIST_IN_DRAG (clist)) for (i = 0; i < clist->columns; i++) if (clist->column[i].window && event->window == clist->column[i].window) { if (event->is_hint || event->window != widget->window) gtk_widget_get_pointer (widget, &x, NULL); else x = event->x; new_column_width (clist, i, &x, &visible); /* Welcome to my hack! I'm going to use a value of x_drage = -99999 to * indicate the the xor line is already no visible */ if (!visible && clist->x_drag != -99999) { draw_xor_line (clist); clist->x_drag = -99999; } if (x != clist->x_drag && visible) { if (clist->x_drag != -99999) draw_xor_line (clist); clist->x_drag = x; draw_xor_line (clist); } } return TRUE; } static void gtk_clist_size_request (GtkWidget * widget, GtkRequisition * requisition) { gint i; GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); g_return_if_fail (requisition != NULL); clist = GTK_CLIST (widget); requisition->width = 0; requisition->height = 0; /* compute the size of the column title (title) area */ clist->column_title_area.height = 0; if (GTK_CLIST_SHOW_TITLES (clist)) for (i = 0; i < clist->columns; i++) if (clist->column[i].button) { gtk_widget_size_request (clist->column[i].button, &clist->column[i].button->requisition); clist->column_title_area.height = MAX (clist->column_title_area.height, clist->column[i].button->requisition.height); } requisition->height += clist->column_title_area.height; /* add the vscrollbar space */ if ((clist->vscrollbar_policy == GTK_POLICY_AUTOMATIC) || GTK_WIDGET_VISIBLE (clist->vscrollbar)) { gtk_widget_size_request (clist->vscrollbar, &clist->vscrollbar->requisition); requisition->width += clist->vscrollbar->requisition.width + SCROLLBAR_SPACING (clist); requisition->height = MAX (requisition->height, clist->vscrollbar->requisition.height); } /* add the hscrollbar space */ if ((clist->hscrollbar_policy == GTK_POLICY_AUTOMATIC) || GTK_WIDGET_VISIBLE (clist->hscrollbar)) { gtk_widget_size_request (clist->hscrollbar, &clist->hscrollbar->requisition); requisition->height += clist->hscrollbar->requisition.height + SCROLLBAR_SPACING (clist); requisition->width = MAX (clist->hscrollbar->requisition.width, requisition->width - clist->vscrollbar->requisition.width); } requisition->width += widget->style->klass->xthickness * 2 + GTK_CONTAINER (widget)->border_width * 2; requisition->height += widget->style->klass->ythickness * 2 + GTK_CONTAINER (widget)->border_width * 2; } static void gtk_clist_size_allocate (GtkWidget * widget, GtkAllocation * allocation) { GtkCList *clist; GtkAllocation clist_allocation; GtkAllocation child_allocation; gint i, vscrollbar_vis, hscrollbar_vis; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (widget)); g_return_if_fail (allocation != NULL); clist = GTK_CLIST (widget); widget->allocation = *allocation; if (GTK_WIDGET_REALIZED (widget)) { gdk_window_move_resize (widget->window, allocation->x + GTK_CONTAINER (widget)->border_width, allocation->y + GTK_CONTAINER (widget)->border_width, allocation->width - GTK_CONTAINER (widget)->border_width * 2, allocation->height - GTK_CONTAINER (widget)->border_width * 2); /* use internal allocation structure for all the math * because it's easier than always subtracting the container * border width */ clist->internal_allocation.x = 0; clist->internal_allocation.y = 0; clist->internal_allocation.width = allocation->width - GTK_CONTAINER (widget)->border_width * 2; clist->internal_allocation.height = allocation->height - GTK_CONTAINER (widget)->border_width * 2; /* allocate clist window assuming no scrollbars */ clist_allocation.x = clist->internal_allocation.x + widget->style->klass->xthickness; clist_allocation.y = clist->internal_allocation.y + widget->style->klass->ythickness + clist->column_title_area.height; clist_allocation.width = clist->internal_allocation.width - (2 * widget->style->klass->xthickness); clist_allocation.height = clist->internal_allocation.height - (2 * widget->style->klass->xthickness) - clist->column_title_area.height; /* * here's where we decide to show/not show the scrollbars */ vscrollbar_vis = 0; hscrollbar_vis = 0; for (i = 0; i <= 1; i++) { if (LIST_HEIGHT (clist) <= clist_allocation.height && clist->vscrollbar_policy == GTK_POLICY_AUTOMATIC) { vscrollbar_vis = 0; } else { if (!vscrollbar_vis) { vscrollbar_vis = 1; clist_allocation.width -= clist->vscrollbar->requisition.width + SCROLLBAR_SPACING (clist); } } if (LIST_WIDTH (clist) <= clist_allocation.width && clist->hscrollbar_policy == GTK_POLICY_AUTOMATIC) { hscrollbar_vis = 0; } else { if (!hscrollbar_vis) { hscrollbar_vis = 1; clist_allocation.height -= clist->hscrollbar->requisition.height + SCROLLBAR_SPACING (clist); } } } clist->clist_window_width = clist_allocation.width; clist->clist_window_height = clist_allocation.height; gdk_window_move_resize (clist->clist_window, clist_allocation.x, clist_allocation.y, clist_allocation.width, clist_allocation.height); /* position the window which holds the column title buttons */ clist->column_title_area.x = widget->style->klass->xthickness; clist->column_title_area.y = widget->style->klass->ythickness; clist->column_title_area.width = clist_allocation.width; gdk_window_move_resize (clist->title_window, clist->column_title_area.x, clist->column_title_area.y, clist->column_title_area.width, clist->column_title_area.height); /* column button allocation */ size_allocate_columns (clist); size_allocate_title_buttons (clist); adjust_scrollbars (clist); /* allocate the vscrollbar */ if (vscrollbar_vis) { if (!GTK_WIDGET_VISIBLE (clist->vscrollbar)) gtk_widget_show (clist->vscrollbar); child_allocation.x = clist->internal_allocation.x + clist->internal_allocation.width - clist->vscrollbar->requisition.width; child_allocation.y = clist->internal_allocation.y; child_allocation.width = clist->vscrollbar->requisition.width; child_allocation.height = clist->internal_allocation.height - (hscrollbar_vis ? (clist->hscrollbar->requisition.height + SCROLLBAR_SPACING (clist)) : 0); gtk_widget_size_allocate (clist->vscrollbar, &child_allocation); } else { if (GTK_WIDGET_VISIBLE (clist->vscrollbar)) gtk_widget_hide (clist->vscrollbar); } if (hscrollbar_vis) { if (!GTK_WIDGET_VISIBLE (clist->hscrollbar)) gtk_widget_show (clist->hscrollbar); child_allocation.x = clist->internal_allocation.x; child_allocation.y = clist->internal_allocation.y + clist->internal_allocation.height - clist->hscrollbar->requisition.height; child_allocation.width = clist->internal_allocation.width - (vscrollbar_vis ? (clist->vscrollbar->requisition.width + SCROLLBAR_SPACING (clist)) : 0); child_allocation.height = clist->hscrollbar->requisition.height; gtk_widget_size_allocate (clist->hscrollbar, &child_allocation); } else { if (GTK_WIDGET_VISIBLE (clist->hscrollbar)) gtk_widget_hide (clist->hscrollbar); } } /* set the vscrollbar adjustments */ adjust_scrollbars (clist); } /* * GTKCONTAINER * gtk_clist_foreach */ static void gtk_clist_foreach (GtkContainer * container, GtkCallback callback, gpointer callback_data) { gint i; GtkCList *clist; g_return_if_fail (container != NULL); g_return_if_fail (GTK_IS_CLIST (container)); g_return_if_fail (callback != NULL); clist = GTK_CLIST (container); /* callback for the column buttons */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button) (*callback) (clist->column[i].button, callback_data); /* callbacks for the scrollbars */ if (clist->vscrollbar) (*callback) (clist->vscrollbar, callback_data); if (clist->hscrollbar) (*callback) (clist->hscrollbar, callback_data); } /* * DRAWING * draw_row * draw_rows */ static void draw_row (GtkCList * clist, GdkRectangle * area, gint row, GtkCListRow * clist_row) { GtkWidget *widget; GdkGC *fg_gc, *bg_gc; GdkRectangle row_rectangle, cell_rectangle, clip_rectangle, intersect_rectangle, *rect; gint i, offset = 0, width, height, pixmap_width = 0; gint xsrc, ysrc, xdest, ydest; g_return_if_fail (clist != NULL); /* bail now if we arn't drawable yet */ if (!GTK_WIDGET_DRAWABLE (clist)) return; if (row < 0 || row >= clist->rows) return; widget = GTK_WIDGET (clist); /* if the function is passed the pointer to the row instead of null, * it avoids this expensive lookup */ if (!clist_row) clist_row = (g_list_nth (clist->row_list, row))->data; /* rectangle of the entire row */ row_rectangle.x = 0; row_rectangle.y = ROW_TOP_YPIXEL (clist, row); row_rectangle.width = clist->clist_window_width; row_rectangle.height = clist->row_height; /* rectangle of the cell spacing above the row */ cell_rectangle.x = 0; cell_rectangle.y = row_rectangle.y - CELL_SPACING; cell_rectangle.width = row_rectangle.width; cell_rectangle.height = CELL_SPACING; /* rectangle used to clip drawing operations, it's y and height * positions only need to be set once, so we set them once here. * the x and width are set withing the drawing loop below once per * column */ clip_rectangle.y = row_rectangle.y; clip_rectangle.height = row_rectangle.height; /* select GC for background rectangle */ if (clist_row->state == GTK_STATE_SELECTED) { fg_gc = widget->style->fg_gc[GTK_STATE_SELECTED]; bg_gc = widget->style->bg_gc[GTK_STATE_SELECTED]; } else { if (clist_row->fg_set) { gdk_gc_set_foreground (clist->fg_gc, &clist_row->foreground); fg_gc = clist->fg_gc; } else fg_gc = widget->style->fg_gc[GTK_STATE_NORMAL]; if (clist_row->bg_set) { gdk_gc_set_foreground (clist->bg_gc, &clist_row->background); bg_gc = clist->bg_gc; } else bg_gc = widget->style->bg_gc[GTK_STATE_PRELIGHT]; } /* draw the cell borders and background */ if (area) { if (gdk_rectangle_intersect (area, &cell_rectangle, &intersect_rectangle)) gdk_draw_rectangle (clist->clist_window, widget->style->white_gc, TRUE, intersect_rectangle.x, intersect_rectangle.y, intersect_rectangle.width, intersect_rectangle.height); /* the last row has to clear it's bottom cell spacing too */ if (clist_row == clist->row_list_end->data) { cell_rectangle.y += clist->row_height + CELL_SPACING; if (gdk_rectangle_intersect (area, &cell_rectangle, &intersect_rectangle)) gdk_draw_rectangle (clist->clist_window, widget->style->white_gc, TRUE, intersect_rectangle.x, intersect_rectangle.y, intersect_rectangle.width, intersect_rectangle.height); } if (!gdk_rectangle_intersect (area, &row_rectangle, &intersect_rectangle)) return; if (clist_row->state == GTK_STATE_SELECTED || clist_row->fg_set) gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE, intersect_rectangle.x, intersect_rectangle.y, intersect_rectangle.width, intersect_rectangle.height); else gdk_window_clear_area (clist->clist_window, intersect_rectangle.x, intersect_rectangle.y, intersect_rectangle.width, intersect_rectangle.height); } else { gdk_draw_rectangle (clist->clist_window, widget->style->white_gc, TRUE, cell_rectangle.x, cell_rectangle.y, cell_rectangle.width, cell_rectangle.height); /* the last row has to clear it's bottom cell spacing too */ if (clist_row == clist->row_list_end->data) { cell_rectangle.y += clist->row_height + CELL_SPACING; gdk_draw_rectangle (clist->clist_window, widget->style->white_gc, TRUE, cell_rectangle.x, cell_rectangle.y, cell_rectangle.width, cell_rectangle.height); } if (clist_row->state == GTK_STATE_SELECTED || clist_row->fg_set) gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE, row_rectangle.x, row_rectangle.y, row_rectangle.width, row_rectangle.height); else gdk_window_clear_area (clist->clist_window, row_rectangle.x, row_rectangle.y, row_rectangle.width, row_rectangle.height); } /* iterate and draw all the columns (row cells) and draw their contents */ for (i = 0; i < clist->columns; i++) { clip_rectangle.x = clist->column[i].area.x + clist->hoffset; clip_rectangle.width = clist->column[i].area.width; /* calculate clipping region clipping region */ if (!area) { rect = &clip_rectangle; } else { if (!gdk_rectangle_intersect (area, &clip_rectangle, &intersect_rectangle)) continue; rect = &intersect_rectangle; } /* calculate real width for column justification */ switch (clist_row->cell[i].type) { case GTK_CELL_EMPTY: continue; break; case GTK_CELL_TEXT: width = gdk_string_width (GTK_WIDGET (clist)->style->font, GTK_CELL_TEXT (clist_row->cell[i])->text); break; case GTK_CELL_PIXMAP: gdk_window_get_size (GTK_CELL_PIXMAP (clist_row->cell[i])->pixmap, &width, &height); pixmap_width = width; break; case GTK_CELL_PIXTEXT: gdk_window_get_size (GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap, &width, &height); pixmap_width = width; width += GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing; width = gdk_string_width (GTK_WIDGET (clist)->style->font, GTK_CELL_PIXTEXT (clist_row->cell[i])->text); break; case GTK_CELL_WIDGET: /* unimplimented */ continue; break; default: continue; break; } switch (clist->column[i].justification) { case GTK_JUSTIFY_LEFT: offset = clip_rectangle.x; break; case GTK_JUSTIFY_RIGHT: offset = (clip_rectangle.x + clip_rectangle.width) - width; break; case GTK_JUSTIFY_CENTER: offset = (clip_rectangle.x + (clip_rectangle.width / 2)) - (width / 2); break; case GTK_JUSTIFY_FILL: offset = (clip_rectangle.x + (clip_rectangle.width / 2)) - (width / 2); break; default: offset = 0; break; }; /* Draw Text or Pixmap */ switch (clist_row->cell[i].type) { case GTK_CELL_EMPTY: continue; break; case GTK_CELL_TEXT: gdk_gc_set_clip_rectangle (fg_gc, rect); gdk_draw_string (clist->clist_window, widget->style->font, fg_gc, offset + clist_row->cell[i].horizontal, row_rectangle.y + clist->row_center_offset + clist_row->cell[i].vertical, GTK_CELL_TEXT (clist_row->cell[i])->text); gdk_gc_set_clip_rectangle (fg_gc, NULL); break; case GTK_CELL_PIXMAP: xsrc = 0; ysrc = 0; xdest = offset + clist_row->cell[i].horizontal; ydest = (clip_rectangle.y + (clip_rectangle.height / 2)) - height / 2 + clist_row->cell[i].vertical; gdk_gc_set_clip_mask (fg_gc, GTK_CELL_PIXMAP (clist_row->cell[i])->mask); gdk_gc_set_clip_origin (fg_gc, xdest, ydest); gdk_draw_pixmap (clist->clist_window, fg_gc, GTK_CELL_PIXMAP (clist_row->cell[i])->pixmap, xsrc, ysrc, xdest, ydest, pixmap_width, height); gdk_gc_set_clip_origin (fg_gc, 0, 0); gdk_gc_set_clip_mask (fg_gc, NULL); break; case GTK_CELL_PIXTEXT: /* draw the pixmap */ xsrc = 0; ysrc = 0; xdest = offset + clist_row->cell[i].horizontal; ydest = (clip_rectangle.y + (clip_rectangle.height / 2)) - height / 2 + clist_row->cell[i].vertical; gdk_gc_set_clip_mask (fg_gc, GTK_CELL_PIXTEXT (clist_row->cell[i])->mask); gdk_gc_set_clip_origin (fg_gc, xdest, ydest); gdk_draw_pixmap (clist->clist_window, fg_gc, GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap, xsrc, ysrc, xdest, ydest, pixmap_width, height); gdk_gc_set_clip_origin (fg_gc, 0, 0); offset += pixmap_width + GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing; /* draw the string */ gdk_gc_set_clip_rectangle (fg_gc, rect); gdk_draw_string (clist->clist_window, widget->style->font, fg_gc, offset + clist_row->cell[i].horizontal, row_rectangle.y + clist->row_center_offset + clist_row->cell[i].vertical, GTK_CELL_PIXTEXT (clist_row->cell[i])->text); gdk_gc_set_clip_rectangle (fg_gc, NULL); break; case GTK_CELL_WIDGET: /* unimplimented */ continue; break; default: continue; break; } } } static void draw_rows (GtkCList * clist, GdkRectangle * area) { GList *list; GtkCListRow *clist_row; int i, first_row, last_row; g_return_if_fail (clist != NULL); g_return_if_fail (GTK_IS_CLIST (clist)); if (clist->row_height == 0 || !GTK_WIDGET_DRAWABLE (clist)) return; if (area) { first_row = ROW_FROM_YPIXEL (clist, area->y); last_row = ROW_FROM_YPIXEL (clist, area->y + area->height); } else { first_row = ROW_FROM_YPIXEL (clist, 0); last_row = ROW_FROM_YPIXEL (clist, clist->clist_window_height); } /* this is a small special case which exposes the bottom cell line * on the last row -- it might go away if I change the wall the cell spacings * are drawn */ if (clist->rows == first_row) first_row--; list = g_list_nth (clist->row_list, first_row); i = first_row; while (list) { clist_row = list->data; list = list->next; if (i > last_row) return; draw_row (clist, area, i, clist_row); i++; } if (!area) gdk_window_clear_area (clist->clist_window, 0, ROW_TOP_YPIXEL (clist, i), -1, -1); } /* * SIZE ALLOCATION * size_allocate_title_buttons * size_allocate_columns */ static void size_allocate_title_buttons (GtkCList * clist) { gint i, last_button = 0; GtkAllocation button_allocation; if (!GTK_WIDGET_REALIZED (clist)) return; button_allocation.x = clist->hoffset; button_allocation.y = 0; button_allocation.width = 0; button_allocation.height = clist->column_title_area.height; for (i = 0; i < clist->columns; i++) { button_allocation.width += clist->column[i].area.width; if (i == clist->columns - 1) button_allocation.width += 2 * (CELL_SPACING + COLUMN_INSET); else button_allocation.width += CELL_SPACING + (2 * COLUMN_INSET); if (i == (clist->columns - 1) || clist->column[i + 1].button) { gtk_widget_size_allocate (clist->column[last_button].button, &button_allocation); button_allocation.x += button_allocation.width; button_allocation.width = 0; gdk_window_show (clist->column[last_button].window); gdk_window_move_resize (clist->column[last_button].window, button_allocation.x - (DRAG_WIDTH / 2), 0, DRAG_WIDTH, clist->column_title_area.height); last_button = i + 1; } else { gdk_window_hide (clist->column[i].window); } } } static void size_allocate_columns (GtkCList * clist) { gint i, xoffset = 0; if (!GTK_WIDGET_REALIZED (clist)) return; for (i = 0; i < clist->columns; i++) { clist->column[i].area.x = xoffset + CELL_SPACING + COLUMN_INSET; if (i == clist->columns - 1) { gint width; if (clist->column[i].width_set) width = clist->column[i].width; else width = gdk_string_width (GTK_WIDGET (clist)->style->font, clist->column[i].title); clist->column[i].area.width = MAX (width, clist->clist_window_width - xoffset - (2 * (CELL_SPACING + COLUMN_INSET))); } else { clist->column[i].area.width = clist->column[i].width; } xoffset += clist->column[i].area.width + CELL_SPACING + (2 * COLUMN_INSET); } } /* * SELECTION * real_select_row * real_unselect_row * get_selection_info */ static void real_select_row (GtkCList * clist, gint row, gint column, GdkEventButton * event) { gint i; GList *list; GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row >= clist->rows) return; switch (clist->selection_mode) { case GTK_SELECTION_SINGLE: i = 0; list = clist->row_list; while (list) { clist_row = list->data; list = list->next; if (row == i) { if (clist_row->state == GTK_STATE_SELECTED) { clist_row->state = GTK_STATE_NORMAL; gtk_signal_emit (GTK_OBJECT (clist), clist_signals[UNSELECT_ROW], i, column, event); } else { clist_row->state = GTK_STATE_SELECTED; clist->selection = g_list_append (clist->selection, clist_row); } if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } else if (clist_row->state == GTK_STATE_SELECTED) { gtk_signal_emit (GTK_OBJECT (clist), clist_signals[UNSELECT_ROW], i, column, event); } i++; } break; case GTK_SELECTION_BROWSE: i = 0; list = clist->row_list; while (list) { clist_row = list->data; list = list->next; if (row == i) { if (clist_row->state != GTK_STATE_SELECTED) { clist_row->state = GTK_STATE_SELECTED; clist->selection = g_list_append (clist->selection, clist_row); if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } } else if (clist_row->state == GTK_STATE_SELECTED) { gtk_signal_emit (GTK_OBJECT (clist), clist_signals[UNSELECT_ROW], i, column, event); } i++; } break; case GTK_SELECTION_MULTIPLE: i = 0; list = clist->row_list; while (list) { clist_row = list->data; list = list->next; if (row == i) { if (clist_row->state == GTK_STATE_SELECTED) { clist_row->state = GTK_STATE_NORMAL; gtk_signal_emit (GTK_OBJECT (clist), clist_signals[UNSELECT_ROW], i, column, event); } else { clist->selection = g_list_append (clist->selection, clist_row); clist_row->state = GTK_STATE_SELECTED; } if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } i++; } break; case GTK_SELECTION_EXTENDED: break; default: break; } } static void real_unselect_row (GtkCList * clist, gint row, gint column, GdkEventButton * event) { GtkCListRow *clist_row; g_return_if_fail (clist != NULL); if (row < 0 || row > (clist->rows - 1)) return; clist_row = (g_list_nth (clist->row_list, row))->data; clist_row->state = GTK_STATE_NORMAL; clist->selection = g_list_remove (clist->selection, clist_row); if (!GTK_CLIST_FROZEN (clist) && gtk_clist_row_isvisable (clist, row)) draw_row (clist, NULL, row, clist_row); } static gint get_selection_info (GtkCList * clist, gint x, gint y, gint * row, gint * column) { gint trow, tcol; g_return_val_if_fail (clist != NULL, 0); /* bounds checking, return false if the user clicked * on a blank area */ trow = ROW_FROM_YPIXEL (clist, y); if (trow >= clist->rows) return 0; if (row) *row = trow; tcol = COLUMN_FROM_XPIXEL (clist, x); if (tcol >= clist->columns) return 0; if (column) *column = tcol; return 1; } /* * RESIZE COLUMNS * draw_xor_line * new_column_width * resize_column */ static void draw_xor_line (GtkCList * clist) { GtkWidget *widget; g_return_if_fail (clist != NULL); widget = GTK_WIDGET (clist); gdk_draw_line (widget->window, clist->xor_gc, clist->x_drag, widget->style->klass->ythickness, clist->x_drag, clist->column_title_area.height + clist->clist_window_height + 1); } /* this function returns the new width of the column being resized given * the column and x position of the cursor; the x cursor position is passed * in as a pointer and automagicly corrected if it's beyond min/max limits */ static gint new_column_width (GtkCList * clist, gint column, gint * x, gint * visible) { gint cx, rx, width; cx = *x; /* first translate the x position from widget->window * to clist->clist_window */ cx -= GTK_WIDGET (clist)->style->klass->xthickness; /* rx is x from the list beginning */ rx = cx - clist->hoffset; /* you can't shrink a column to less than its minimum width */ if (cx < (COLUMN_LEFT_XPIXEL (clist, column) + CELL_SPACING + COLUMN_INSET + COLUMN_MIN_WIDTH)) { *x = cx = COLUMN_LEFT_XPIXEL (clist, column) + CELL_SPACING + COLUMN_INSET + COLUMN_MIN_WIDTH + GTK_WIDGET (clist)->style->klass->xthickness; cx -= GTK_WIDGET (clist)->style->klass->xthickness; rx = cx - clist->hoffset; } if (cx > clist->clist_window_width) *visible = 0; else *visible = 1; /* calculate new column width making sure it doesn't end up * less than the minimum width */ width = (rx - COLUMN_LEFT (clist, column)) - COLUMN_INSET - ((clist->columns == (column - 1)) ? CELL_SPACING : 0); if (width < COLUMN_MIN_WIDTH) width = COLUMN_MIN_WIDTH; return width; } /* this will do more later */ static void resize_column (GtkCList * clist, gint column, gint width) { gtk_clist_set_column_width (clist, column, width); } /* BUTTONS */ static void column_button_create (GtkCList * clist, gint column) { GtkWidget *button; button = clist->column[column].button = gtk_button_new (); gtk_widget_set_parent (button, GTK_WIDGET (clist)); if (GTK_WIDGET_REALIZED (clist) && clist->title_window) gtk_widget_set_parent_window (clist->column[column].button, clist->title_window); gtk_signal_connect (GTK_OBJECT (button), "clicked", (GtkSignalFunc) column_button_clicked, (gpointer) clist); gtk_widget_show (button); } static void column_button_clicked (GtkWidget * widget, gpointer data) { gint i; GtkCList *clist; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_CLIST (data)); clist = GTK_CLIST (data); /* find the column who's button was pressed */ for (i = 0; i < clist->columns; i++) if (clist->column[i].button == widget) break; gtk_signal_emit (GTK_OBJECT (clist), clist_signals[CLICK_COLUMN], i); } /* * SCROLLBARS * * functions: * create_scrollbars * adjust_scrollbars * vadjustment_changed * hadjustment_changed * vadjustment_value_changed * hadjustment_value_changed */ static void create_scrollbars (GtkCList * clist) { GtkAdjustment *adjustment; clist->vscrollbar = gtk_vscrollbar_new (NULL); adjustment = gtk_range_get_adjustment (GTK_RANGE (clist->vscrollbar)); gtk_signal_connect (GTK_OBJECT (adjustment), "changed", (GtkSignalFunc) vadjustment_changed, (gpointer) clist); gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed", (GtkSignalFunc) vadjustment_value_changed, (gpointer) clist); gtk_widget_set_parent (clist->vscrollbar, GTK_WIDGET (clist)); gtk_widget_show (clist->vscrollbar); clist->hscrollbar = gtk_hscrollbar_new (NULL); adjustment = gtk_range_get_adjustment (GTK_RANGE (clist->hscrollbar)); gtk_signal_connect (GTK_OBJECT (adjustment), "changed", (GtkSignalFunc) hadjustment_changed, (gpointer) clist); gtk_signal_connect (GTK_OBJECT (adjustment), "value_changed", (GtkSignalFunc) hadjustment_value_changed, (gpointer) clist); gtk_widget_set_parent (clist->hscrollbar, GTK_WIDGET (clist)); gtk_widget_show (clist->hscrollbar); } static void adjust_scrollbars (GtkCList * clist) { GTK_RANGE (clist->vscrollbar)->adjustment->page_size = clist->clist_window_height; GTK_RANGE (clist->vscrollbar)->adjustment->page_increment = clist->clist_window_height / 2; GTK_RANGE (clist->vscrollbar)->adjustment->step_increment = 10; GTK_RANGE (clist->vscrollbar)->adjustment->lower = 0; GTK_RANGE (clist->vscrollbar)->adjustment->upper = LIST_HEIGHT (clist); if (clist->clist_window_height - clist->voffset > LIST_HEIGHT (clist)) { GTK_RANGE (clist->vscrollbar)->adjustment->value = LIST_HEIGHT (clist) - clist->clist_window_height; gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->vscrollbar)->adjustment), "value_changed"); } GTK_RANGE (clist->hscrollbar)->adjustment->page_size = clist->clist_window_width; GTK_RANGE (clist->hscrollbar)->adjustment->page_increment = clist->clist_window_width / 2; GTK_RANGE (clist->hscrollbar)->adjustment->step_increment = 10; GTK_RANGE (clist->hscrollbar)->adjustment->lower = 0; GTK_RANGE (clist->hscrollbar)->adjustment->upper = LIST_WIDTH (clist); if (clist->clist_window_width - clist->hoffset > LIST_WIDTH (clist)) { GTK_RANGE (clist->hscrollbar)->adjustment->value = LIST_WIDTH (clist) - clist->clist_window_width; gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->hscrollbar)->adjustment), "value_changed"); } if (LIST_HEIGHT (clist) <= clist->clist_window_height && clist->vscrollbar_policy == GTK_POLICY_AUTOMATIC) { if (GTK_WIDGET_VISIBLE (clist->vscrollbar)) { gtk_widget_hide (clist->vscrollbar); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } else { if (!GTK_WIDGET_VISIBLE (clist->vscrollbar)) { gtk_widget_show (clist->vscrollbar); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } if (LIST_WIDTH (clist) <= clist->clist_window_width && clist->hscrollbar_policy == GTK_POLICY_AUTOMATIC) { if (GTK_WIDGET_VISIBLE (clist->hscrollbar)) { gtk_widget_hide (clist->hscrollbar); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } else { if (!GTK_WIDGET_VISIBLE (clist->hscrollbar)) { gtk_widget_show (clist->hscrollbar); gtk_widget_queue_resize (GTK_WIDGET (clist)); } } gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->vscrollbar)->adjustment), "changed"); gtk_signal_emit_by_name (GTK_OBJECT (GTK_RANGE (clist->hscrollbar)->adjustment), "changed"); } static void vadjustment_changed (GtkAdjustment * adjustment, gpointer data) { GtkCList *clist; g_return_if_fail (adjustment != NULL); g_return_if_fail (data != NULL); clist = GTK_CLIST (data); } static void hadjustment_changed (GtkAdjustment * adjustment, gpointer data) { GtkCList *clist; g_return_if_fail (adjustment != NULL); g_return_if_fail (data != NULL); clist = GTK_CLIST (data); } static void check_exposures (GtkCList *clist) { GdkEvent *event; if (!GTK_WIDGET_REALIZED (clist)) return; /* Make sure graphics expose events are processed before scrolling * again */ while ((event = gdk_event_get_graphics_expose (clist->clist_window)) != NULL) { gtk_widget_event (GTK_WIDGET (clist), event); if (event->expose.count == 0) { gdk_event_free (event); break; } gdk_event_free (event); } } static void vadjustment_value_changed (GtkAdjustment * adjustment, gpointer data) { GtkCList *clist; GdkRectangle area; gint diff, value; g_return_if_fail (adjustment != NULL); g_return_if_fail (data != NULL); g_return_if_fail (GTK_IS_CLIST (data)); clist = GTK_CLIST (data); if (!GTK_WIDGET_DRAWABLE (clist)) return; value = adjustment->value; if (adjustment == gtk_range_get_adjustment (GTK_RANGE (clist->vscrollbar))) { if (value > -clist->voffset) { /* scroll down */ diff = value + clist->voffset; /* we have to re-draw the whole screen here... */ if (diff >= clist->clist_window_height) { clist->voffset = -value; draw_rows (clist, NULL); return; } if ((diff != 0) && (diff != clist->clist_window_height)) gdk_window_copy_area (clist->clist_window, clist->fg_gc, 0, 0, clist->clist_window, 0, diff, clist->clist_window_width, clist->clist_window_height - diff); area.x = 0; area.y = clist->clist_window_height - diff; area.width = clist->clist_window_width; area.height = diff; } else { /* scroll up */ diff = -clist->voffset - value; /* we have to re-draw the whole screen here... */ if (diff >= clist->clist_window_height) { clist->voffset = -value; draw_rows (clist, NULL); return; } if ((diff != 0) && (diff != clist->clist_window_height)) gdk_window_copy_area (clist->clist_window, clist->fg_gc, 0, diff, clist->clist_window, 0, 0, clist->clist_window_width, clist->clist_window_height - diff); area.x = 0; area.y = 0; area.width = clist->clist_window_width; area.height = diff; } clist->voffset = -value; if ((diff != 0) && (diff != clist->clist_window_height)) check_exposures (clist); } draw_rows (clist, &area); } static void hadjustment_value_changed (GtkAdjustment * adjustment, gpointer data) { GtkCList *clist; GdkRectangle area; gint i, diff, value; g_return_if_fail (adjustment != NULL); g_return_if_fail (data != NULL); g_return_if_fail (GTK_IS_CLIST (data)); clist = GTK_CLIST (data); if (!GTK_WIDGET_DRAWABLE (clist)) return; value = adjustment->value; if (adjustment == gtk_range_get_adjustment (GTK_RANGE (clist->hscrollbar))) { /* move the column buttons and resize windows */ for (i = 0; i < clist->columns; i++) { if (clist->column[i].button) { clist->column[i].button->allocation.x -= value + clist->hoffset; if (clist->column[i].button->window) { gdk_window_move (clist->column[i].button->window, clist->column[i].button->allocation.x, clist->column[i].button->allocation.y); if (clist->column[i].window) gdk_window_move (clist->column[i].window, clist->column[i].button->allocation.x + clist->column[i].button->allocation.width - (DRAG_WIDTH / 2), 0); } } } if (value > -clist->hoffset) { /* scroll right */ diff = value + clist->hoffset; /* we have to re-draw the whole screen here... */ if (diff >= clist->clist_window_width) { clist->hoffset = -value; draw_rows (clist, NULL); return; } if ((diff != 0) && (diff != clist->clist_window_width)) gdk_window_copy_area (clist->clist_window, clist->fg_gc, 0, 0, clist->clist_window, diff, 0, clist->clist_window_width - diff, clist->clist_window_height); area.x = clist->clist_window_width - diff; area.y = 0; area.width = diff; area.height = clist->clist_window_height; } else { /* scroll left */ diff = -clist->hoffset - value; /* we have to re-draw the whole screen here... */ if (diff >= clist->clist_window_width) { clist->hoffset = -value; draw_rows (clist, NULL); return; } if ((diff != 0) && (diff != clist->clist_window_width)) gdk_window_copy_area (clist->clist_window, clist->fg_gc, diff, 0, clist->clist_window, 0, 0, clist->clist_window_width - diff, clist->clist_window_height); area.x = 0; area.y = 0; area.width = diff; area.height = clist->clist_window_height; } clist->hoffset = -value; if ((diff != 0) && (diff != clist->clist_window_width)) check_exposures (clist); } draw_rows (clist, &area); } /* * Memory Allocation/Distruction Routines for GtkCList stuctures * * functions: * columns_new * column_title_new * columns_delete * row_new * row_delete * cell_empty * cell_set_text * cell_set_pixmap */ static GtkCListColumn * columns_new (GtkCList * clist) { gint i; GtkCListColumn *column; column = g_new (GtkCListColumn, clist->columns); for (i = 0; i < clist->columns; i++) { column[i].area.x = 0; column[i].area.y = 0; column[i].area.width = 0; column[i].area.height = 0; column[i].title = NULL; column[i].button = NULL; column[i].window = NULL; column[i].width = 0; column[i].width_set = FALSE; column[i].justification = GTK_JUSTIFY_LEFT; } return column; } static void column_title_new (GtkCList * clist, gint column, gchar * title) { if (clist->column[column].title) g_free (clist->column[column].title); clist->column[column].title = g_strdup (title); } static void columns_delete (GtkCList * clist) { gint i; for (i = 0; i < clist->columns; i++) if (clist->column[i].title) g_free (clist->column[i].title); g_free (clist->column); } static GtkCListRow * row_new (GtkCList * clist) { int i; GtkCListRow *clist_row; clist_row = g_chunk_new (GtkCListRow, clist->row_mem_chunk); clist_row->cell = g_chunk_new (GtkCell, clist->cell_mem_chunk); for (i = 0; i < clist->columns; i++) { clist_row->cell[i].type = GTK_CELL_EMPTY; clist_row->cell[i].vertical = 0; clist_row->cell[i].horizontal = 0; } clist_row->fg_set = FALSE; clist_row->bg_set = FALSE; clist_row->state = GTK_STATE_NORMAL; clist_row->data = NULL; return clist_row; } static void row_delete (GtkCList * clist, GtkCListRow * clist_row) { gint i; for (i = 0; i < clist->columns; i++) cell_empty (clist, clist_row, i); g_mem_chunk_free (clist->cell_mem_chunk, clist_row->cell); g_mem_chunk_free (clist->row_mem_chunk, clist_row); } static void cell_empty (GtkCList * clist, GtkCListRow * clist_row, gint column) { switch (clist_row->cell[column].type) { case GTK_CELL_EMPTY: break; case GTK_CELL_TEXT: g_free (GTK_CELL_TEXT (clist_row->cell[column])->text); break; case GTK_CELL_PIXMAP: gdk_pixmap_unref (GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap); gdk_bitmap_unref (GTK_CELL_PIXMAP (clist_row->cell[column])->mask); break; case GTK_CELL_PIXTEXT: g_free (GTK_CELL_PIXTEXT (clist_row->cell[column])->text); gdk_pixmap_unref (GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap); gdk_bitmap_unref (GTK_CELL_PIXTEXT (clist_row->cell[column])->mask); break; case GTK_CELL_WIDGET: /* unimplimented */ break; default: break; } clist_row->cell[column].type = GTK_CELL_EMPTY; } static void cell_set_text (GtkCList * clist, GtkCListRow * clist_row, gint column, gchar * text) { cell_empty (clist, clist_row, column); if (text) { clist_row->cell[column].type = GTK_CELL_TEXT; GTK_CELL_TEXT (clist_row->cell[column])->text = g_strdup (text); } } static void cell_set_pixmap (GtkCList * clist, GtkCListRow * clist_row, gint column, GdkPixmap * pixmap, GdkBitmap * mask) { cell_empty (clist, clist_row, column); if (pixmap && mask) { clist_row->cell[column].type = GTK_CELL_PIXMAP; GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap = pixmap; GTK_CELL_PIXMAP (clist_row->cell[column])->mask = mask; } } static void cell_set_pixtext (GtkCList * clist, GtkCListRow * clist_row, gint column, gchar * text, guint8 spacing, GdkPixmap * pixmap, GdkBitmap * mask) { cell_empty (clist, clist_row, column); if (text && pixmap && mask) { clist_row->cell[column].type = GTK_CELL_PIXTEXT; GTK_CELL_PIXTEXT (clist_row->cell[column])->text = g_strdup (text); GTK_CELL_PIXTEXT (clist_row->cell[column])->spacing = spacing; GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap = pixmap; GTK_CELL_PIXTEXT (clist_row->cell[column])->mask = mask; } } /* Fill in data after widget is realized and has style */ static void add_style_data (GtkCList * clist) { GtkWidget *widget; widget = GTK_WIDGET(clist); /* text properties */ if (!GTK_CLIST_ROW_HEIGHT_SET (clist)) { clist->row_height = widget->style->font->ascent + widget->style->font->descent + 1; clist->row_center_offset = widget->style->font->ascent + 1.5; } else { gint text_height; text_height = clist->row_height - (GTK_WIDGET (clist)->style->font->ascent + GTK_WIDGET (clist) ->style->font->descent + 1); clist->row_center_offset = (text_height / 2) + GTK_WIDGET (clist)->style->font->ascent + 1.5; } /* Column widths */ }