/* licensing and copyright information here */
+#include <math.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gmodule.h>
+#include <pango/pango.h>
#include "chimara-glk.h"
#include "chimara-glk-private.h"
#include "glk.h"
#define CHIMARA_GLK_MIN_WIDTH 0
#define CHIMARA_GLK_MIN_HEIGHT 0
+/**
+ * SECTION:chimara-glk
+ * @short_description: Widget which executes a Glk program
+ * @stability: Unstable
+ * @include: chimara/chimara-glk.h
+ *
+ * The ChimaraGlk widget opens and runs a Glk program. The program must be
+ * compiled as a plugin module, with a function <function>glk_main()</function>
+ * that the Glk library can hook into.
+ *
+ * On Linux systems, this is a file with a name like
+ * <filename>plugin.so</filename>. For portability, you can use libtool and
+ * automake:
+ * <informalexample><programlisting>
+ * pkglib_LTLIBRARIES = plugin.la
+ * plugin_la_SOURCES = plugin.c foo.c bar.c
+ * plugin_la_LDFLAGS = -module -shared -avoid-version -export-symbols-regex "^glk_main$$"
+ * </programlisting></informalexample>
+ * This will produce <filename>plugin.la</filename> which is a text file
+ * containing the correct plugin file to open (see the relevant section of the
+ * <ulink
+ * url="http://www.gnu.org/software/libtool/manual/html_node/Finding-the-dlname.html">
+ * Libtool manual</ulink>).
+ */
+
typedef void (* glk_main_t) (void);
enum {
PROP_0,
PROP_INTERACTIVE,
- PROP_PROTECT
+ PROP_PROTECT,
+ PROP_DEFAULT_FONT_DESCRIPTION,
+ PROP_MONOSPACE_FONT_DESCRIPTION
};
enum {
priv->self = self;
priv->interactive = TRUE;
priv->protect = FALSE;
+ priv->default_font_desc = pango_font_description_from_string("Sans");
+ priv->monospace_font_desc = pango_font_description_from_string("Monospace");
priv->program = NULL;
priv->thread = NULL;
priv->event_queue = NULL;
switch(prop_id)
{
case PROP_INTERACTIVE:
- chimara_glk_set_interactive(glk, g_value_get_boolean(value));
+ chimara_glk_set_interactive( glk, g_value_get_boolean(value) );
break;
case PROP_PROTECT:
- chimara_glk_set_protect(glk, g_value_get_boolean(value));
+ chimara_glk_set_protect( glk, g_value_get_boolean(value) );
break;
+ case PROP_DEFAULT_FONT_DESCRIPTION:
+ chimara_glk_set_default_font_description( glk, (PangoFontDescription *)g_value_get_pointer(value) );
+ break;
+ case PROP_MONOSPACE_FONT_DESCRIPTION:
+ chimara_glk_set_monospace_font_description( glk, (PangoFontDescription *)g_value_get_pointer(value) );
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
}
case PROP_PROTECT:
g_value_set_boolean(value, priv->protect);
break;
+ case PROP_DEFAULT_FONT_DESCRIPTION:
+ g_value_set_pointer(value, priv->default_font_desc);
+ break;
+ case PROP_MONOSPACE_FONT_DESCRIPTION:
+ g_value_set_pointer(value, priv->monospace_font_desc);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
}
g_mutex_free(priv->abort_lock);
priv->abort_lock = NULL;
+ /* Free private data */
+ pango_font_description_free(priv->default_font_desc);
+ pango_font_description_free(priv->monospace_font_desc);
+
G_OBJECT_CLASS(chimara_glk_parent_class)->finalize(object);
}
+/* Internal function: Recursively get the Glk window tree's size request */
+static void
+request_recurse(winid_t win, GtkRequisition *requisition)
+{
+ if(win->type == wintype_Pair)
+ {
+ /* Get children's size requests */
+ GtkRequisition child1, child2;
+ request_recurse(win->window_node->children->data, &child1);
+ request_recurse(win->window_node->children->next->data, &child2);
+
+ /* If the split is fixed, get the size of the fixed child */
+ if((win->split_method & winmethod_DivisionMask) == winmethod_Fixed)
+ {
+ switch(win->split_method & winmethod_DirMask)
+ {
+ case winmethod_Left:
+ child1.width = win->constraint_size * win->key_window->unit_width;
+ break;
+ case winmethod_Right:
+ child2.width = win->constraint_size * win->key_window->unit_width;
+ break;
+ case winmethod_Above:
+ child1.height = win->constraint_size * win->key_window->unit_height;
+ break;
+ case winmethod_Below:
+ child2.height = win->constraint_size * win->key_window->unit_height;
+ break;
+ }
+ }
+
+ /* Add the children's requests */
+ switch(win->split_method & winmethod_DirMask)
+ {
+ case winmethod_Left:
+ case winmethod_Right:
+ requisition->width = child1.width + child2.width;
+ requisition->height = MAX(child1.height, child2.height);
+ break;
+ case winmethod_Above:
+ case winmethod_Below:
+ requisition->width = MAX(child1.width, child2.width);
+ requisition->height = child1.height + child2.height;
+ break;
+ }
+ }
+
+ /* For non-pair windows, just use the size that GTK requests */
+ else
+ gtk_widget_size_request(win->frame, requisition);
+}
+
+/* Overrides gtk_widget_size_request */
static void
chimara_glk_size_request(GtkWidget *widget, GtkRequisition *requisition)
{
ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(widget);
/* For now, just pass the size request on to the root Glk window */
- if(priv->root_window) {
- GtkWidget *child = ((winid_t)(priv->root_window->data))->frame;
- if(GTK_WIDGET_VISIBLE(child))
- gtk_widget_size_request(child, requisition);
- } else {
+ if(priv->root_window)
+ request_recurse(priv->root_window->data, requisition);
+ else {
requisition->width = CHIMARA_GLK_MIN_WIDTH;
requisition->height = CHIMARA_GLK_MIN_HEIGHT;
}
}
+/* Recursively give the Glk windows their allocated space */
+static void
+allocate_recurse(winid_t win, GtkAllocation *allocation)
+{
+ if(win->type == wintype_Pair)
+ {
+ GtkAllocation child1, child2;
+ child1.x = allocation->x;
+ child1.y = allocation->y;
+
+ if((win->split_method & winmethod_DivisionMask) == winmethod_Fixed)
+ {
+ switch(win->split_method & winmethod_DirMask)
+ {
+ case winmethod_Left:
+ child1.width = win->constraint_size * win->key_window->unit_width;
+ if(child1.width > allocation->width)
+ child1.width = allocation->width;
+ break;
+ case winmethod_Right:
+ child2.width = win->constraint_size * win->key_window->unit_width;
+ if(child2.width > allocation->width)
+ child2.width = allocation->width;
+ break;
+ case winmethod_Above:
+ child1.height = win->constraint_size * win->key_window->unit_height;
+ if(child1.height > allocation->height)
+ child1.height = allocation->height;
+ break;
+ case winmethod_Below:
+ child2.height = win->constraint_size * win->key_window->unit_height;
+ if(child2.height > allocation->height)
+ child2.height = allocation->height;
+ break;
+ }
+ }
+ else /* proportional */
+ {
+ switch(win->split_method & winmethod_DirMask)
+ {
+ case winmethod_Left:
+ child1.width = (glui32)ceil((win->constraint_size / 100.0) * allocation->width);
+ break;
+ case winmethod_Right:
+ child2.width = (glui32)ceil((win->constraint_size / 100.0) * allocation->width);
+ break;
+ case winmethod_Above:
+ child1.height = (glui32)ceil((win->constraint_size / 100.0) * allocation->height);
+ break;
+ case winmethod_Below:
+ child2.height = (glui32)ceil((win->constraint_size / 100.0) * allocation->height);
+ break;
+ }
+ }
+
+ /* Fill in the rest of the size requisitions according to the child specified above */
+ switch(win->split_method & winmethod_DirMask)
+ {
+ case winmethod_Left:
+ child2.width = allocation->width - child1.width;
+ child2.x = child1.x + child1.width;
+ child2.y = child1.y;
+ child1.height = child2.height = allocation->height;
+ break;
+ case winmethod_Right:
+ child1.width = allocation->width - child2.width;
+ child2.x = child1.x + child1.width;
+ child2.y = child1.y;
+ child1.height = child2.height = allocation->height;
+ break;
+ case winmethod_Above:
+ child2.height = allocation->height - child1.height;
+ child2.x = child1.x;
+ child2.y = child1.y + child1.height;
+ child1.width = child2.width = allocation->width;
+ break;
+ case winmethod_Below:
+ child1.height = allocation->height - child2.height;
+ child2.x = child1.x;
+ child2.y = child1.y + child1.height;
+ child1.width = child2.width = allocation->width;
+ break;
+ }
+
+ /* Recurse */
+ allocate_recurse(win->window_node->children->data, &child1);
+ allocate_recurse(win->window_node->children->next->data, &child2);
+ }
+
+ /* For non-pair windows, just give them the size */
+ else
+ gtk_widget_size_allocate(win->frame, allocation);
+}
+
+/* Overrides gtk_widget_size_allocate */
static void
chimara_glk_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
{
widget->allocation = *allocation;
- if(priv->root_window) {
- GtkWidget *child = ((winid_t)(priv->root_window->data))->frame;
- if(GTK_WIDGET_VISIBLE(child))
- gtk_widget_size_allocate(child, allocation);
- }
+ if(priv->root_window)
+ allocate_recurse(priv->root_window->data, allocation);
}
+/* Recursively invoke callback() on the GtkWidget of each non-pair window in the tree */
static void
-chimara_glk_forall(GtkContainer *container, gboolean include_internals,
- GtkCallback callback, gpointer callback_data)
+forall_recurse(winid_t win, GtkCallback callback, gpointer callback_data)
+{
+ if(win->type == wintype_Pair)
+ {
+ forall_recurse(win->window_node->children->data, callback, callback_data);
+ forall_recurse(win->window_node->children->next->data, callback, callback_data);
+ }
+ else
+ (*callback)(win->frame, callback_data);
+}
+
+/* Overrides gtk_container_forall */
+static void
+chimara_glk_forall(GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data)
{
g_return_if_fail(container);
g_return_if_fail(CHIMARA_IS_GLK(container));
ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(container);
- if(priv->root_window) {
- GtkWidget *child = ((winid_t)(priv->root_window->data))->frame;
- (*callback)(child, callback_data);
- }
+ /* All the children are "internal" */
+ if(!include_internals)
+ return;
+
+ if(priv->root_window)
+ forall_recurse(priv->root_window->data, callback, callback_data);
}
static void
/* TODO: Add default signal handler implementation here */
}
+/* G_PARAM_STATIC_STRINGS only appeared in GTK 2.13.0 */
+#ifndef G_PARAM_STATIC_STRINGS
+#define G_PARAM_STATIC_STRINGS (G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB)
+#endif
+
static void
chimara_glk_class_init(ChimaraGlkClass *klass)
{
/* Signals */
klass->stopped = chimara_glk_stopped;
klass->started = chimara_glk_started;
+ /**
+ * ChimaraGlk::stopped:
+ * @glk: The widget that received the signal
+ *
+ * The ::stopped signal is emitted when the a Glk program finishes
+ * executing in the widget, whether it ended normally, or was interrupted.
+ */
chimara_glk_signals[STOPPED] = g_signal_new("stopped",
G_OBJECT_CLASS_TYPE(klass), 0,
G_STRUCT_OFFSET(ChimaraGlkClass, stopped), NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
+ /**
+ * ChimaraGlk::started:
+ * @glk: The widget that received the signal
+ *
+ * The ::started signal is emitted when a Glk program starts executing in
+ * the widget.
+ */
chimara_glk_signals[STARTED] = g_signal_new ("started",
G_OBJECT_CLASS_TYPE (klass), 0,
G_STRUCT_OFFSET(ChimaraGlkClass, started), NULL, NULL,
pspec = g_param_spec_boolean("interactive", _("Interactive"),
_("Whether user input is expected in the Glk program"),
TRUE,
- G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_LAX_VALIDATION |
- G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB);
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS);
+ /**
+ * ChimaraGlk:interactive:
+ *
+ * Sets whether the widget is interactive. A Glk widget is normally
+ * interactive, but in non-interactive mode, keyboard and mouse input are
+ * ignored and the Glk program is controlled by chimara_glk_feed_text().
+ * <quote>More</quote> prompts when a lot of text is printed to a text
+ * buffer are also disabled. This is typically used when you wish to control
+ * an interpreter program by feeding it a predefined list of commands.
+ */
g_object_class_install_property(object_class, PROP_INTERACTIVE, pspec);
pspec = g_param_spec_boolean("protect", _("Protected"),
_("Whether the Glk program is barred from doing file operations"),
FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_LAX_VALIDATION |
- G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB);
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS);
+ /**
+ * ChimaraGlk:protect:
+ *
+ * Sets whether the Glk program is allowed to do file operations. In protect
+ * mode, all file operations will fail.
+ */
g_object_class_install_property(object_class, PROP_PROTECT, pspec);
-
+ pspec = g_param_spec_pointer("default-font-description", _("Default Font"),
+ _("Font description of the default proportional font"),
+ G_PARAM_READWRITE | G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS);
+ /* We can't use G_PARAM_CONSTRUCT on these because then the constructor will
+ initialize them with NULL */
+ /**
+ * ChimaraGlk:default-font-description:
+ *
+ * Pointer to a #PangoFontDescription describing the default proportional
+ * font, to be used in text buffer windows for example.
+ *
+ * Default value: font description created from the string
+ * <quote>Sans</quote>
+ */
+ g_object_class_install_property(object_class, PROP_DEFAULT_FONT_DESCRIPTION, pspec);
+ pspec = g_param_spec_pointer("monospace-font-description", _("Monospace Font"),
+ _("Font description of the default monospace font"),
+ G_PARAM_READWRITE | G_PARAM_LAX_VALIDATION | G_PARAM_STATIC_STRINGS);
+ /**
+ * ChimaraGlk:monospace-font-description:
+ *
+ * Pointer to a #PangoFontDescription describing the default monospace font,
+ * to be used in text grid windows and #style_Preformatted, for example.
+ *
+ * Default value: font description created from the string
+ * <quote>Monospace</quote>
+ */
+ g_object_class_install_property(object_class, PROP_MONOSPACE_FONT_DESCRIPTION, pspec);
/* Private data */
g_type_class_add_private(klass, sizeof(ChimaraGlkPrivate));
}
* @glk: a #ChimaraGlk widget
* @interactive: whether the widget should expect user input
*
- * Sets the #ChimaraGlk:interactive property of @glk. A Glk widget is normally
- * interactive, but in non-interactive mode, keyboard and mouse input is ignored
- * and the Glk program is controlled by chimara_glk_feed_text(). "More" prompts
- * when a lot of text is printed to a text buffer are also disabled. This is
- * typically used when you wish to control an interpreter program by feeding it
- * a predefined list of commands.
+ * Sets the #ChimaraGlk:interactive property of @glk.
*/
void
chimara_glk_set_interactive(ChimaraGlk *glk, gboolean interactive)
* @glk: a #ChimaraGlk widget
*
* Returns whether @glk is interactive (expecting user input). See
- * chimara_glk_set_interactive().
+ * #ChimaraGlk:interactive.
*
* Return value: %TRUE if @glk is interactive.
*/
* @glk: a #ChimaraGlk widget
*
* Returns whether @glk is in protect mode (banned from doing file operations).
- * See chimara_glk_set_protect().
+ * See #ChimaraGlk:protect.
*
* Return value: %TRUE if @glk is in protect mode.
*/
return priv->protect;
}
+/**
+ * chimara_glk_set_default_font_description:
+ * @glk: a #ChimaraGlk widget
+ * @font: a #PangoFontDescription
+ *
+ * Sets @glk's default proportional font. See
+ * #ChimaraGlk:default-font-description.
+ */
+void
+chimara_glk_set_default_font_description(ChimaraGlk *glk, PangoFontDescription *font)
+{
+ g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+ g_return_if_fail(font);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ pango_font_description_free(priv->default_font_desc);
+ priv->default_font_desc = pango_font_description_copy(font);
+
+ /* TODO: Apply the font description to all the windows and recalculate the sizes */
+}
+
+/**
+ * chimara_glk_set_default_font_string:
+ * @glk: a #ChimaraGlk widget
+ * @font: string representation of a font description
+ *
+ * Sets @glk's default proportional font according to the string @font, which
+ * must be a string in the form <quote><replaceable>FAMILY-LIST</replaceable>
+ * [<replaceable>STYLE-OPTIONS</replaceable>]
+ * [<replaceable>SIZE</replaceable>]</quote>, such as <quote>Charter,Utopia
+ * Italic 12</quote> or <quote>Sans</quote>. See
+ * #ChimaraGlk:default-font-description.
+ */
+void
+chimara_glk_set_default_font_string(ChimaraGlk *glk, const gchar *font)
+{
+ g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+ g_return_if_fail(font || *font);
+
+ PangoFontDescription *fontdesc = pango_font_description_from_string(font);
+ g_return_if_fail(fontdesc);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ pango_font_description_free(priv->default_font_desc);
+ priv->default_font_desc = fontdesc;
+
+ /* TODO: Apply the font description to all the windows and recalculate the sizes */
+}
+
+/**
+ * chimara_glk_get_default_font_description:
+ *
+ * Returns @glk's default proportional font.
+ *
+ * Return value: a newly-allocated #PangoFontDescription which must be freed
+ * using pango_font_description_free(), or %NULL on error.
+ */
+PangoFontDescription *
+chimara_glk_get_default_font_description(ChimaraGlk *glk)
+{
+ g_return_val_if_fail(glk || CHIMARA_IS_GLK(glk), NULL);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ return pango_font_description_copy(priv->default_font_desc);
+}
+
+/**
+ * chimara_glk_set_monospace_font_description:
+ * @glk: a #ChimaraGlk widget
+ * @font: a #PangoFontDescription
+ *
+ * Sets @glk's default monospace font. See
+ * #ChimaraGlk:monospace-font-description.
+ */
+void
+chimara_glk_set_monospace_font_description(ChimaraGlk *glk, PangoFontDescription *font)
+{
+ g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+ g_return_if_fail(font);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ pango_font_description_free(priv->monospace_font_desc);
+ priv->monospace_font_desc = pango_font_description_copy(font);
+
+ /* TODO: Apply the font description to all the windows and recalculate the sizes */
+}
+
+/**
+ * chimara_glk_set_monospace_font_string:
+ * @glk: a #ChimaraGlk widget
+ * @font: string representation of a font description
+ *
+ * Sets @glk's default monospace font according to the string @font, which must
+ * be a string in the form <quote><replaceable>FAMILY-LIST</replaceable>
+ * [<replaceable>STYLE-OPTIONS</replaceable>]
+ * [<replaceable>SIZE</replaceable>]</quote>, such as <quote>Courier
+ * Bold 12</quote> or <quote>Monospace</quote>. See
+ * #ChimaraGlk:monospace-font-description.
+ */
+void
+chimara_glk_set_monospace_font_string(ChimaraGlk *glk, const gchar *font)
+{
+ g_return_if_fail(glk || CHIMARA_IS_GLK(glk));
+ g_return_if_fail(font || *font);
+
+ PangoFontDescription *fontdesc = pango_font_description_from_string(font);
+ g_return_if_fail(fontdesc);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ pango_font_description_free(priv->monospace_font_desc);
+ priv->monospace_font_desc = fontdesc;
+
+ /* TODO: Apply the font description to all the windows and recalculate the sizes */
+}
+
+/**
+ * chimara_glk_get_monospace_font_description:
+ *
+ * Returns @glk's default monospace font.
+ *
+ * Return value: a newly-allocated #PangoFontDescription which must be freed
+ * using pango_font_description_free(), or %NULL on error.
+ */
+PangoFontDescription *
+chimara_glk_get_monospace_font_description(ChimaraGlk *glk)
+{
+ g_return_val_if_fail(glk || CHIMARA_IS_GLK(glk), NULL);
+
+ ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
+ return pango_font_description_copy(priv->monospace_font_desc);
+}
+
/* glk_enter() is the actual function called in the new thread in which glk_main() runs. */
static gpointer
glk_enter(gpointer glk_main)
/**
* chimara_glk_run:
* @glk: a #ChimaraGlk widget
- * @plugin: path to a plugin module compiled with glk.h
- * @error: location to store a #GError, or %NULL
+ * @plugin: path to a plugin module compiled with <filename
+ * class="header">glk.h</filename>
+ * @error: location to store a <link linkend="glib-GError">GError</link>, or
+ * %NULL
*
* Opens a Glk program compiled as a plugin and runs its glk_main() function in
* a separate thread. On failure, returns %FALSE and sets @error.
ChimaraGlkPrivate *priv = CHIMARA_GLK_PRIVATE(glk);
g_thread_join(priv->thread);
-}
\ No newline at end of file
+}
projects / rodin / chimara.git / blobdiff