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#include "stdafx.h"
#include "Label.h"
#include "Container.h"
#include "Win32Dpi.h"
namespace gui {
Label::Label(Str *title) : hAlign(hLeft), vAlign(vTop) {
text(title);
}
Label::Label(Str *title, HAlign halign) : hAlign(halign), vAlign(vTop) {
text(title);
}
Label::Label(Str *title, VAlign valign) : hAlign(hLeft), vAlign(valign) {
text(title);
}
Label::Label(Str *title, HAlign halign, VAlign valign) : hAlign(halign), vAlign(valign) {
text(title);
}
#ifdef GUI_WIN32
bool Label::create(ContainerBase *parent, nat id) {
DWORD flags = childFlags;
switch (hAlign) {
case hLeft:
flags |= SS_LEFT;
break;
case hCenter:
flags |= SS_CENTER;
break;
case hRight:
flags |= SS_RIGHT;
break;
}
switch (vAlign) {
case vTop:
// No flag.
break;
case vCenter:
flags |= SS_CENTERIMAGE;
break;
case vBottom:
// Actually not supported...
break;
}
flags |= SS_NOPREFIX; // Don't treat & characters specially.
return createEx(WC_STATIC, flags, 0, parent->handle().hwnd(), id);
}
Size Label::minSize() {
Str *s = text();
Bool hasNewline = false;
for (Str::Iter i = s->begin(), e = s->end(); i != e; ++i) {
if (i.v() == Char('\n')) {
hasNewline = true;
break;
}
}
if (hasNewline) {
Nat dpi = currentDpi();
// Text layout does not always scale linearly.
return dpiFromPx(dpi, font()->stringSize(s, dpi));
} else {
// If no newlines, the difference is small enough to ignore. It causes issues in the layout.
return font()->stringSize(s);
}
}
#endif
#ifdef GUI_GTK
bool Label::create(ContainerBase *parent, nat id) {
GtkWidget *label = gtk_label_new(text()->utf8_str());
switch (hAlign) {
case hLeft:
gtk_widget_set_halign(label, (GtkAlign)GTK_ALIGN_START);
break;
case hCenter:
gtk_widget_set_halign(label, (GtkAlign)GTK_ALIGN_CENTER);
break;
case hRight:
gtk_widget_set_halign(label, (GtkAlign)GTK_ALIGN_END);
break;
}
switch (vAlign) {
case vTop:
gtk_widget_set_valign(label, (GtkAlign)GTK_ALIGN_START);
break;
case vCenter:
gtk_widget_set_valign(label, (GtkAlign)GTK_ALIGN_CENTER);
break;
case vBottom:
gtk_widget_set_valign(label, (GtkAlign)GTK_ALIGN_END);
break;
}
// GValue zero = G_VALUE_INIT;
// g_value_init(&zero, G_TYPE_FLOAT);
// g_value_set_float(&zero, (gfloat)0.0f);
// g_object_set_property(G_OBJECT(label), "xalign", &zero);
// g_object_set_property(G_OBJECT(label), "yalign", &zero);
// g_value_unset(&zero);
initWidget(parent, label);
return true;
}
void Label::text(Str *text) {
if (created()) {
gtk_label_set_text(GTK_LABEL(handle().widget()), text->utf8_str());
}
Window::text(text);
}
Size Label::minSize() {
gint w = 0, h = 0;
if (created()) {
gtk_widget_get_preferred_width(handle().widget(), &w, NULL);
gtk_widget_get_preferred_height(handle().widget(), &h, NULL);
}
return Size(Float(w), Float(h));
}
#endif
}
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