117 lines
2.8 KiB
Go
117 lines
2.8 KiB
Go
// +build !windows,!darwin
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// 7 july 2014
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package ui
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import (
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"unsafe"
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)
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// #include "gtk_unix.h"
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// extern gboolean windowClosing(GtkWidget *, GdkEvent *, gpointer);
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// extern void windowResized(GtkWidget *, GdkRectangle *, gpointer);
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import "C"
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type window struct {
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widget *C.GtkWidget
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wc *C.GtkContainer
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bin *C.GtkBin
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window *C.GtkWindow
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group *C.GtkWindowGroup
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closing *event
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child Control
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container *container
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margined bool
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}
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func newWindow(title string, width int, height int, control Control) *window {
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widget := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
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ctitle := togstr(title)
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defer freegstr(ctitle)
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w := &window{
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widget: widget,
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wc: (*C.GtkContainer)(unsafe.Pointer(widget)),
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bin: (*C.GtkBin)(unsafe.Pointer(widget)),
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window: (*C.GtkWindow)(unsafe.Pointer(widget)),
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closing: newEvent(),
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child: control,
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}
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C.gtk_window_set_title(w.window, ctitle)
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g_signal_connect(
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C.gpointer(unsafe.Pointer(w.window)),
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"delete-event",
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C.GCallback(C.windowClosing),
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C.gpointer(unsafe.Pointer(w)))
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C.gtk_window_resize(w.window, C.gint(width), C.gint(height))
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w.container = newContainer()
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w.child.setParent(w.container.parent())
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w.container.setParent(&controlParent{w.wc})
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// notice that we connect this to the container
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g_signal_connect_after( // so we get it after the child container has been allocated
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C.gpointer(unsafe.Pointer(w.container.widget)),
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"size-allocate",
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C.GCallback(C.windowResized),
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C.gpointer(unsafe.Pointer(w)))
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// for dialogs; otherwise, they will be modal to all windows, not just this one
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w.group = C.gtk_window_group_new()
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C.gtk_window_group_add_window(w.group, w.window)
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return w
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}
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func (w *window) Title() string {
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return fromgstr(C.gtk_window_get_title(w.window))
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}
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func (w *window) SetTitle(title string) {
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ctitle := togstr(title)
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defer freegstr(ctitle)
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C.gtk_window_set_title(w.window, ctitle)
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}
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func (w *window) Show() {
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C.gtk_widget_show_all(w.widget)
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}
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func (w *window) Hide() {
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C.gtk_widget_hide(w.widget)
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}
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func (w *window) Close() {
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C.gtk_widget_destroy(w.widget)
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}
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func (w *window) OnClosing(e func() bool) {
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w.closing.setbool(e)
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}
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func (w *window) Margined() bool {
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return w.margined
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}
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func (w *window) SetMargined(margined bool) {
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w.margined = margined
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}
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//export windowClosing
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func windowClosing(wid *C.GtkWidget, e *C.GdkEvent, data C.gpointer) C.gboolean {
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w := (*window)(unsafe.Pointer(data))
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close := w.closing.fire()
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if close {
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return C.GDK_EVENT_PROPAGATE // will do gtk_widget_destroy(), which is what we want (thanks ebassi in irc.gimp.net/#gtk+)
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}
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return C.GDK_EVENT_STOP // keeps window alive
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}
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//export windowResized
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func windowResized(wid *C.GtkWidget, r *C.GdkRectangle, data C.gpointer) {
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w := (*window)(unsafe.Pointer(data))
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a := w.container.allocation(w.margined)
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d := w.beginResize()
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w.child.resize(int(a.x), int(a.y), int(a.width), int(a.height), d)
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}
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