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Isolated all the non-listbox-related GTK+ type conversions into their own file with functions to reduce the amount of code noise in gtkcalls_unix.go.

This commit is contained in:
Pietro Gagliardi 2014-02-17 15:45:26 -05:00
parent e395ea105b
commit c92a370f08
2 changed files with 139 additions and 54 deletions
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85
gtkcalls_unix.go
View File

@ -23,23 +23,10 @@ import (
// GtkTreeViewColumn *gtkTreeViewColumnNewWithAttributes(GtkCellRenderer *renderer) { return gtk_tree_view_column_new_with_attributes("", renderer, "text", 0, NULL); }
import "C"
// BIG TODO reduce the amount of explicit casting
type (
gtkWidget C.GtkWidget
)
func fromgbool(b C.gboolean) bool {
return b != C.FALSE
}
func togbool(b bool) C.gboolean {
if b {
return C.TRUE
}
return C.FALSE
}
func gtk_init() bool {
// TODO allow GTK+ standard command-line argument processing
return fromgbool(C.gtk_init_check((*C.int)(nil), (***C.char)(nil)))
@ -55,158 +42,148 @@ func gtk_main() {
func gtk_window_new() *gtkWidget {
// 0 == GTK_WINDOW_TOPLEVEL (the only other type, _POPUP, should not be used)
return (*gtkWidget)(unsafe.Pointer(C.gtk_window_new(0)))
}
// shorthand
func gtkwidget(what *gtkWidget) *C.GtkWidget {
return (*C.GtkWidget)(unsafe.Pointer(what))
return fromgtkwidget(C.gtk_window_new(0))
}
func g_signal_connect(obj *gtkWidget, sig string, callback func() bool) {
ccallback := callbacks[sig]
csig := C.CString(sig)
defer C.free(unsafe.Pointer(csig))
C.gSignalConnect(gtkwidget(obj), csig, ccallback, unsafe.Pointer(&callback))
C.gSignalConnect(togtkwidget(obj), csig, ccallback, unsafe.Pointer(&callback))
}
// TODO ensure this works if called on an individual control
func gtk_widget_show(widget *gtkWidget) {
C.gtk_widget_show_all(gtkwidget(widget))
C.gtk_widget_show_all(togtkwidget(widget))
}
func gtk_widget_hide(widget *gtkWidget) {
C.gtk_widget_hide(gtkwidget(widget))
C.gtk_widget_hide(togtkwidget(widget))
}
func gtk_window_set_title(window *gtkWidget, title string) {
ctitle := C.CString(title)
defer C.free(unsafe.Pointer(ctitle))
C.gtk_window_set_title((*C.GtkWindow)(unsafe.Pointer(window)),
(*C.gchar)(unsafe.Pointer(ctitle)))
C.gtk_window_set_title(togtkwindow(window), togchar(ctitle))
}
func gtk_window_get_title(window *gtkWidget) string {
return C.GoString((*C.char)(unsafe.Pointer(C.gtk_window_get_title((*C.GtkWindow)(unsafe.Pointer(window))))))
return C.GoString(fromgchar(C.gtk_window_get_title(togtkwindow(window))))
}
func gtk_window_resize(window *gtkWidget, width int, height int) {
C.gtk_window_resize((*C.GtkWindow)(unsafe.Pointer(window)), C.gint(width), C.gint(height))
C.gtk_window_resize(togtkwindow(window), C.gint(width), C.gint(height))
}
func gtk_window_get_size(window *gtkWidget) (int, int) {
var width, height C.gint
C.gtk_window_get_size((*C.GtkWindow)(unsafe.Pointer(window)), &width, &height)
C.gtk_window_get_size(togtkwindow(window), &width, &height)
return int(width), int(height)
}
func gtk_fixed_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_fixed_new()))
return fromgtkwidget(C.gtk_fixed_new())
}
func gtk_container_add(container *gtkWidget, widget *gtkWidget) {
C.gtk_container_add((*C.GtkContainer)(unsafe.Pointer(container)), gtkwidget(widget))
C.gtk_container_add(togtkcontainer(container), togtkwidget(widget))
}
func gtk_fixed_move(container *gtkWidget, widget *gtkWidget, x int, y int) {
C.gtk_fixed_move((*C.GtkFixed)(unsafe.Pointer(container)), gtkwidget(widget),
C.gtk_fixed_move(togtkfixed(container), togtkwidget(widget),
C.gint(x), C.gint(y))
}
func gtk_widget_set_size_request(widget *gtkWidget, width int, height int) {
C.gtk_widget_set_size_request(gtkwidget(widget), C.gint(width), C.gint(height))
C.gtk_widget_set_size_request(togtkwidget(widget), C.gint(width), C.gint(height))
}
func gtk_button_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_button_new()))
return fromgtkwidget(C.gtk_button_new())
}
func gtk_button_set_label(button *gtkWidget, label string) {
clabel := C.CString(label)
defer C.free(unsafe.Pointer(clabel))
C.gtk_button_set_label((*C.GtkButton)(unsafe.Pointer(button)),
(*C.gchar)(unsafe.Pointer(clabel)))
C.gtk_button_set_label(togtkbutton(button), togchar(clabel))
}
func gtk_button_get_label(button *gtkWidget) string {
return C.GoString((*C.char)(unsafe.Pointer(C.gtk_button_get_label((*C.GtkButton)(unsafe.Pointer(button))))))
return C.GoString(fromgchar(C.gtk_button_get_label(togtkbutton(button))))
}
func gtk_check_button_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_check_button_new()))
return fromgtkwidget(C.gtk_check_button_new())
}
func gtk_toggle_button_get_active(widget *gtkWidget) bool {
return fromgbool(C.gtk_toggle_button_get_active((*C.GtkToggleButton)(unsafe.Pointer(widget))))
return fromgbool(C.gtk_toggle_button_get_active(togtktogglebutton(widget)))
}
func gtk_combo_box_text_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_combo_box_text_new()))
return fromgtkwidget(C.gtk_combo_box_text_new())
}
func gtk_combo_box_text_new_with_entry() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_combo_box_text_new_with_entry()))
return fromgtkwidget(C.gtk_combo_box_text_new_with_entry())
}
func gtk_combo_box_text_get_active_text(widget *gtkWidget) string {
return C.GoString((*C.char)(unsafe.Pointer(C.gtk_combo_box_text_get_active_text((*C.GtkComboBoxText)(unsafe.Pointer(widget))))))
return C.GoString(fromgchar(C.gtk_combo_box_text_get_active_text(togtkcombobox(widget))))
}
func gtk_combo_box_text_append_text(widget *gtkWidget, text string) {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.gtk_combo_box_text_append_text((*C.GtkComboBoxText)(unsafe.Pointer(widget)),
(*C.gchar)(unsafe.Pointer(ctext)))
C.gtk_combo_box_text_append_text(togtkcombobox(widget), togchar(ctext))
}
func gtk_combo_box_text_insert_text(widget *gtkWidget, index int, text string) {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.gtk_combo_box_text_insert_text((*C.GtkComboBoxText)(unsafe.Pointer(widget)),
C.gint(index), (*C.gchar)(unsafe.Pointer(ctext)))
C.gtk_combo_box_text_insert_text(togtkcombobox(widget), C.gint(index), togchar(ctext))
}
func gtk_combo_box_get_active(widget *gtkWidget) int {
return int(C.gtk_combo_box_get_active((*C.GtkComboBox)(unsafe.Pointer(widget))))
cb := (*C.GtkComboBox)(unsafe.Pointer(widget))
return int(C.gtk_combo_box_get_active(cb))
}
func gtk_combo_box_text_remove(widget *gtkWidget, index int) {
C.gtk_combo_box_text_remove((*C.GtkComboBoxText)(unsafe.Pointer(widget)), C.gint(index))
C.gtk_combo_box_text_remove(togtkcombobox(widget), C.gint(index))
}
func gtk_entry_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_entry_new()))
return fromgtkwidget(C.gtk_entry_new())
}
func gtk_entry_set_text(widget *gtkWidget, text string) {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.gtk_entry_set_text((*C.GtkEntry)(unsafe.Pointer(widget)),
(*C.gchar)(unsafe.Pointer(ctext)))
C.gtk_entry_set_text(togtkentry(widget), togchar(ctext))
}
func gtk_entry_get_text(widget *gtkWidget) string {
return C.GoString((*C.char)(unsafe.Pointer(C.gtk_entry_get_text((*C.GtkEntry)(unsafe.Pointer(widget))))))
return C.GoString(fromgchar(C.gtk_entry_get_text(togtkentry(widget))))
}
var _emptystring = [1]C.gchar{0}
var emptystring = &_emptystring[0]
func gtk_label_new() *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(C.gtk_label_new(emptystring)))
return fromgtkwidget(C.gtk_label_new(emptystring))
// TODO left-justify?
}
func gtk_label_set_text(widget *gtkWidget, text string) {
ctext := C.CString(text)
defer C.free(unsafe.Pointer(ctext))
C.gtk_label_set_text((*C.GtkLabel)(unsafe.Pointer(widget)),
(*C.gchar)(unsafe.Pointer(ctext)))
C.gtk_label_set_text(togtklabel(widget), togchar(ctext))
}
func gtk_label_get_text(widget *gtkWidget) string {
return C.GoString((*C.char)(unsafe.Pointer(C.gtk_label_get_text((*C.GtkLabel)(unsafe.Pointer(widget))))))
return C.GoString(fromgchar(C.gtk_label_get_text(togtklabel(widget))))
}
// TODO split all this out into its own file?

108
gtkcasts_unix.go Normal file
View File

@ -0,0 +1,108 @@
// +build !windows,!darwin,!plan9
// 17 february 2014
package main
import (
"unsafe"
)
// this file contains functions that wrap around complex pointer casts to satisfy GTK+'s dumb type aliasing system
// fromxxx() converts from GTK+ type to Go type
// toxxxx() converts from Go type to GTK+ type
// #cgo pkg-config: gtk+-3.0
// #include <gtk/gtk.h>
import "C"
func fromgbool(b C.gboolean) bool {
return b != C.FALSE
}
func togbool(b bool) C.gboolean {
if b {
return C.TRUE
}
return C.FALSE
}
func fromgtkwidget(x *C.GtkWidget) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkwidget(what *gtkWidget) *C.GtkWidget {
return (*C.GtkWidget)(unsafe.Pointer(what))
}
// TODO wrap in C.GoString()?
func fromgchar(what *C.gchar) *C.char {
return (*C.char)(unsafe.Pointer(what))
}
func togchar(what *C.char) *C.gchar {
return (*C.gchar)(unsafe.Pointer(what))
}
func fromgtkwindow(x *C.GtkWindow) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkwindow(what *gtkWidget) *C.GtkWindow {
return (*C.GtkWindow)(unsafe.Pointer(what))
}
func fromgtkcontainer(x *C.GtkContainer) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkcontainer(what *gtkWidget) *C.GtkContainer {
return (*C.GtkContainer)(unsafe.Pointer(what))
}
func fromgtkfixed(x *C.GtkFixed) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkfixed(what *gtkWidget) *C.GtkFixed {
return (*C.GtkFixed)(unsafe.Pointer(what))
}
func fromgtkbutton(x *C.GtkButton) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkbutton(what *gtkWidget) *C.GtkButton {
return (*C.GtkButton)(unsafe.Pointer(what))
}
func fromgtktogglebutton(x *C.GtkToggleButton) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtktogglebutton(what *gtkWidget) *C.GtkToggleButton {
return (*C.GtkToggleButton)(unsafe.Pointer(what))
}
func fromgtkcombobox(x *C.GtkComboBoxText) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkcombobox(what *gtkWidget) *C.GtkComboBoxText {
return (*C.GtkComboBoxText)(unsafe.Pointer(what))
}
func fromgtkentry(x *C.GtkEntry) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtkentry(what *gtkWidget) *C.GtkEntry {
return (*C.GtkEntry)(unsafe.Pointer(what))
}
func fromgtklabel(x *C.GtkLabel) *gtkWidget {
return (*gtkWidget)(unsafe.Pointer(x))
}
func togtklabel(what *gtkWidget) *C.GtkLabel {
return (*C.GtkLabel)(unsafe.Pointer(what))
}