diff options
Diffstat (limited to 'tools/glade/glade/gbwidgets/gblayout.c')
-rw-r--r-- | tools/glade/glade/gbwidgets/gblayout.c | 399 |
1 files changed, 399 insertions, 0 deletions
diff --git a/tools/glade/glade/gbwidgets/gblayout.c b/tools/glade/glade/gbwidgets/gblayout.c new file mode 100644 index 00000000..aa2b4157 --- /dev/null +++ b/tools/glade/glade/gbwidgets/gblayout.c @@ -0,0 +1,399 @@ +/* Gtk+ User Interface Builder + * Copyright (C) 1999 Damon Chaplin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <gtk/gtk.h> +#include "../gb.h" + +/* Include the 21x21 icon pixmap for this widget, to be used in the palette */ +#include "../graphics/layout.xpm" + +/* + * This is the GbWidget struct for this widget (see ../gbwidget.h). + * It is initialized in the init() function at the end of this file + */ +static GbWidget gbwidget; + +static gchar *AreaWidth = "GtkLayout::width"; +static gchar *AreaHeight = "GtkLayout::height"; + +/* Child properties. */ +const gchar *GladeLayoutChildX = "GtkLayout::x"; +const gchar *GladeLayoutChildY = "GtkLayout::y"; + + + +/* The default step increment for new layouts. */ +#define GLADE_DEFAULT_STEP_INCREMENT 10 + +/* We only use the step increment property since the other are set + automatically by the GtkLayout, or aren't relevant. */ +static const gchar *HValues[] = { + NULL, NULL, NULL, "GtkLayout::hstep", NULL, NULL, +}; + +static const gchar *VValues[] = { + NULL, NULL, NULL, "GtkLayout::vstep", NULL, NULL, +}; + +static void gb_layout_adjustment_changed (GtkAdjustment *adjustment, + GtkWidget *widget); + +/****** + * NOTE: To use these functions you need to uncomment them AND add a pointer + * to the function in the GbWidget struct at the end of this file. + ******/ + +/* + * Creates a new GtkWidget of class GtkLayout, performing any specialized + * initialization needed for the widget to work correctly in this environment. + * If a dialog box is used to initialize the widget, return NULL from this + * function, and call data->callback with your new widget when it is done. + */ +static GtkWidget* +gb_layout_new (GbWidgetNewData *data) +{ + GtkWidget *new_widget; + + new_widget = gtk_layout_new (NULL, NULL); + gtk_layout_set_size (GTK_LAYOUT (new_widget), 400, 400); + + return new_widget; +} + + +static void +gb_layout_adjustment_changed (GtkAdjustment *adjustment, + GtkWidget *widget) +{ + /* We check that this is a widget in the interface being created rather + than part of Glade's interface. */ + if (GB_IS_GB_WIDGET (widget)) + gtk_widget_queue_clear (widget); +} + + +/* + * Creates the components needed to edit the extra properties of this widget. + */ +static void +gb_layout_create_properties (GtkWidget * widget, GbWidgetCreateArgData * data) +{ + property_add_int_range (AreaWidth, _("Area Width:"), + _("The width of the layout area"), + 1, 1000, 1, 10, 1); + property_add_int_range (AreaHeight, _("Area Height:"), + _("The height of the layout area"), + 1, 1000, 1, 10, 1); + + property_add_adjustment (HValues, GB_ADJUST_H_LABELS); + property_add_adjustment (VValues, GB_ADJUST_V_LABELS); +} + + + +/* + * Gets the properties of the widget. This is used for both displaying the + * properties in the property editor, and also for saving the properties. + */ +static void +gb_layout_get_properties (GtkWidget *widget, GbWidgetGetArgData * data) +{ + gb_widget_output_int (data, AreaWidth, GTK_LAYOUT (widget)->width); + gb_widget_output_int (data, AreaHeight, GTK_LAYOUT (widget)->height); + + gb_widget_output_adjustment (data, HValues, + GTK_LAYOUT (widget)->hadjustment, + "hadjustment"); + gb_widget_output_adjustment (data, VValues, + GTK_LAYOUT (widget)->vadjustment, + "vadjustment"); +} + + + +/* + * Sets the properties of the widget. This is used for both applying the + * properties changed in the property editor, and also for loading. + */ +static void +gb_layout_set_properties (GtkWidget * widget, GbWidgetSetArgData * data) +{ + gint width, height; + gboolean set_size = FALSE; + + width = gb_widget_input_int (data, AreaWidth); + if (data->apply) + set_size = TRUE; + else + width = GTK_LAYOUT (widget)->width; + + height = gb_widget_input_int (data, AreaHeight); + if (data->apply) + set_size = TRUE; + else + height = GTK_LAYOUT (widget)->height; + + if (set_size) + gtk_layout_set_size (GTK_LAYOUT (widget), width, height); + + gb_widget_input_adjustment (data, HValues, GTK_LAYOUT (widget)->hadjustment, + "hadjustment"); + gb_widget_input_adjustment (data, VValues, GTK_LAYOUT (widget)->vadjustment, + "vadjustment"); +} + + + +/* + * Adds menu items to a context menu which is just about to appear! + * Add commands to aid in editing a GtkLayout, with signals pointing to + * other functions in this file. + */ +/* +static void +gb_layout_create_popup_menu (GtkWidget * widget, GbWidgetCreateMenuData * data) +{ + +} +*/ + + +void +gb_layout_add_child (GtkWidget *widget, GtkWidget *child, + GbWidgetSetArgData *data) +{ + gtk_layout_put (GTK_LAYOUT (widget), child, 0, 0); +} + + +/* + * Writes the source code needed to create this widget. + * You have to output everything necessary to create the widget here, though + * there are some convenience functions to help. + */ +static void +gb_layout_write_source (GtkWidget * widget, GbWidgetWriteSourceData * data) +{ + if (data->create_widget) + { + source_add (data, " %s = gtk_layout_new (NULL, NULL);\n", data->wname); + } + gb_widget_write_standard_source (widget, data); + + source_add (data, " gtk_layout_set_size (GTK_LAYOUT (%s), %i, %i);\n", + data->wname, + GTK_LAYOUT (widget)->width, + GTK_LAYOUT (widget)->height); + + source_add (data, + " GTK_ADJUSTMENT (GTK_LAYOUT (%s)->hadjustment)->step_increment = %g;\n", + data->wname, + GTK_ADJUSTMENT (GTK_LAYOUT (widget)->hadjustment)->step_increment); + source_add (data, + " GTK_ADJUSTMENT (GTK_LAYOUT (%s)->vadjustment)->step_increment = %g;\n", + data->wname, + GTK_ADJUSTMENT (GTK_LAYOUT (widget)->vadjustment)->step_increment); +} + + +/* + * Creates the child packing properties for children of this widget. + */ +void +gb_layout_create_child_properties (GtkWidget * widget, + GbWidgetCreateChildArgData * data) +{ + property_add_int_range (GladeLayoutChildX, _("X:"), + _("The X coordinate of the widget in the GtkLayout"), + 0, 10000, 1, 10, 1); + property_add_int_range (GladeLayoutChildY, _("Y:"), + _("The Y coordinate of the widget in the GtkLayout"), + 0, 10000, 1, 10, 1); +} + + +/* Shows or saves the child properties of a child of a layout. */ +void +gb_layout_get_child_properties (GtkWidget *widget, GtkWidget *child, + GbWidgetGetArgData *data) +{ + gint x, y; + + if (data->action == GB_SAVING) + save_start_tag (data, "packing"); + + gtk_container_child_get (GTK_CONTAINER (widget), child, + "x", &x, + "y", &y, + NULL); + + gb_widget_output_int (data, GladeLayoutChildX, x); + gb_widget_output_int (data, GladeLayoutChildY, y); + + if (data->action == GB_SAVING) + save_end_tag (data, "packing"); +} + + +/* Applies or loads the child properties of a child of a layout. */ +void +gb_layout_set_child_properties (GtkWidget *widget, GtkWidget *child, + GbWidgetSetArgData *data) +{ + gint x, y; + + x = gb_widget_input_int (data, GladeLayoutChildX); + if (data->apply) + gtk_container_child_set (GTK_CONTAINER (widget), child, + "x", x, + NULL); + + y = gb_widget_input_int (data, GladeLayoutChildY); + if (data->apply) + gtk_container_child_set (GTK_CONTAINER (widget), child, + "y", y, + NULL); +} + + +/* Outputs source to add a child widget to a layout. */ +static void +gb_layout_write_add_child_source (GtkWidget * parent, + const gchar *parent_name, + GtkWidget *child, + GbWidgetWriteSourceData * data) +{ + gint x, y; + + gtk_container_child_get (GTK_CONTAINER (parent), child, + "x", &x, + "y", &y, + NULL); + source_add (data, + " gtk_layout_put (GTK_LAYOUT (%s), %s, %i, %i);\n", + parent_name, data->wname, x, y); +} + + +static gboolean +gb_layout_emission_hook (GSignalInvocationHint *ihint, + guint n_param_values, + const GValue *param_values, + gpointer data) +{ + GtkObject *object, *hadjustment, *vadjustment; + GtkObject *old_hadjustment, *old_vadjustment; + + object = g_value_get_object (param_values); + g_return_val_if_fail (GTK_IS_LAYOUT (object), FALSE); + + hadjustment = g_value_get_object (param_values + 1); + vadjustment = g_value_get_object (param_values + 2); + + old_hadjustment = gtk_object_get_data (object, "scrollhadjustment"); + if (hadjustment != old_hadjustment) + { + gtk_object_set_data (object, "scrollhadjustment", hadjustment); + + if (hadjustment) + { + gtk_signal_connect (hadjustment, "value_changed", + (GtkSignalFunc) gb_layout_adjustment_changed, + object); + + GTK_ADJUSTMENT (hadjustment)->step_increment = GLADE_DEFAULT_STEP_INCREMENT; + if (property_get_widget () == GTK_WIDGET (object)) + { + property_set_auto_apply (FALSE); + property_set_float (HValues[3], GLADE_DEFAULT_STEP_INCREMENT); + property_set_auto_apply (TRUE); + } + } + } + + old_vadjustment = gtk_object_get_data (object, "scrollvadjustment"); + if (vadjustment != old_vadjustment) + { + gtk_object_set_data (object, "scrollvadjustment", vadjustment); + + if (vadjustment) + { + gtk_signal_connect (vadjustment, "value_changed", + (GtkSignalFunc) gb_layout_adjustment_changed, + object); + + GTK_ADJUSTMENT (vadjustment)->step_increment = GLADE_DEFAULT_STEP_INCREMENT; + if (property_get_widget () == GTK_WIDGET (object)) + { + property_set_auto_apply (FALSE); + property_set_float (VValues[3], GLADE_DEFAULT_STEP_INCREMENT); + property_set_auto_apply (TRUE); + } + } + } + + return TRUE; +} + + +/* + * Initializes the GbWidget structure. + * I've placed this at the end of the file so we don't have to include + * declarations of all the functions. + */ +GbWidget* +gb_layout_init () +{ + GtkWidgetClass *klass; + + /* Initialise the GTK type */ + volatile GtkType type; + type = gtk_layout_get_type(); + + /* Add a signal emission hook so we can connect signal handlers to the + scrollbar adjustments to redraw the layout when necessary. This will also + work for subclasses of GtkLayout. */ + klass = gtk_type_class (gtk_layout_get_type ()); + g_signal_add_emission_hook (klass->set_scroll_adjustments_signal, 0, + gb_layout_emission_hook, NULL, NULL); + + /* Initialize the GbWidget structure */ + gb_widget_init_struct(&gbwidget); + + /* Fill in the pixmap struct & tooltip */ + gbwidget.pixmap_struct = layout_xpm; + gbwidget.tooltip = _("Layout"); + + /* Fill in any functions that this GbWidget has */ + gbwidget.gb_widget_new = gb_layout_new; + gbwidget.gb_widget_create_properties = gb_layout_create_properties; + gbwidget.gb_widget_get_properties = gb_layout_get_properties; + gbwidget.gb_widget_set_properties = gb_layout_set_properties; + gbwidget.gb_widget_write_source = gb_layout_write_source; + gbwidget.gb_widget_create_child_properties = gb_layout_create_child_properties; + gbwidget.gb_widget_get_child_properties = gb_layout_get_child_properties; + gbwidget.gb_widget_set_child_properties = gb_layout_set_child_properties; + gbwidget.gb_widget_write_add_child_source = gb_layout_write_add_child_source; + gbwidget.gb_widget_add_child = gb_layout_add_child; +/* + gbwidget.gb_widget_create_popup_menu = gb_layout_create_popup_menu; +*/ + + return &gbwidget; +} + |