Files
melonDS/src/libui_sdl/libui/unix/window.c
PoroCYon 38f61a24fc 'port' libui GL stuff to Linux
Only implemented the functions needed by melonDS, and only tested using
a very recent mesa+libglvnd+nouveau. Will most likely bork using
proprietary nvidia or old(er) drivers (see gl.c)
2019-05-26 00:38:24 +02:00

463 lines
12 KiB
C

// 11 june 2015
#include "uipriv_unix.h"
struct uiWindow {
uiUnixControl c;
GtkWidget *widget;
GtkContainer *container;
GtkWindow *window;
GtkWidget *vboxWidget;
GtkContainer *vboxContainer;
GtkBox *vbox;
GtkWidget *childHolderWidget;
GtkContainer *childHolderContainer;
GtkWidget *menubar;
uiControl *child;
int margined;
int width, height;
int (*onClosing)(uiWindow *, void *);
void *onClosingData;
void (*onContentSizeChanged)(uiWindow *, void *);
void *onContentSizeChangedData;
void (*onDropFile)(uiWindow *, char *, void *);
void *onDropFileData;
void (*onGetFocus)(uiWindow *, void *);
void *onGetFocusData;
void (*onLoseFocus)(uiWindow *, void *);
void *onLoseFocusData;
gboolean fullscreen;
};
static gboolean onClosing(GtkWidget *win, GdkEvent *e, gpointer data)
{
uiWindow *w = uiWindow(data);
// manually destroy the window ourselves; don't let the delete-event handler do it
if ((*(w->onClosing))(w, w->onClosingData))
uiControlDestroy(uiControl(w));
// don't continue to the default delete-event handler; we destroyed the window by now
return TRUE;
}
static void onSizeAllocate(GtkWidget *widget, GdkRectangle *allocation, gpointer data)
{
uiWindow *w = uiWindow(data);
// TODO deal with spurious size-allocates
(*(w->onContentSizeChanged))(w, w->onContentSizeChangedData);
}
static gboolean onGetFocus(GtkWidget *win, GdkEvent *e, gpointer data)
{
uiWindow *w = uiWindow(data);
if (w->onGetFocus)
w->onGetFocus(w, w->onGetFocusData);
}
static gboolean onLoseFocus(GtkWidget *win, GdkEvent *e, gpointer data)
{
uiWindow *w = uiWindow(data);
if (w->onLoseFocus)
w->onLoseFocus(w, w->onLoseFocusData);
}
static int defaultOnClosing(uiWindow *w, void *data)
{
return 0;
}
static void defaultOnPositionContentSizeChanged(uiWindow *w, void *data)
{
// do nothing
}
static void uiWindowDestroy(uiControl *c)
{
uiWindow *w = uiWindow(c);
// first hide ourselves
gtk_widget_hide(w->widget);
// now destroy the child
if (w->child != NULL) {
uiControlSetParent(w->child, NULL);
uiUnixControlSetContainer(uiUnixControl(w->child), w->childHolderContainer, TRUE);
uiControlDestroy(w->child);
}
// now destroy the menus, if any
if (w->menubar != NULL)
freeMenubar(w->menubar);
gtk_widget_destroy(w->childHolderWidget);
gtk_widget_destroy(w->vboxWidget);
// and finally free ourselves
// use gtk_widget_destroy() instead of g_object_unref() because GTK+ has internal references (see #165)
gtk_widget_destroy(w->widget);
uiFreeControl(uiControl(w));
}
void uiWindowSetPosition(uiWindow *w, int x, int y)
{
if (!w) return;
gtk_window_move(w->window, x, y);
}
void uiWindowPosition(uiWindow *w, int *x, int *y)
{
if (!w) return;
int xx, yy;
gtk_window_get_position(w->window, &xx, &yy);
if (x) *x = xx;
if (y) *y = yy;
}
uiUnixControlDefaultHandle(uiWindow)
uiControl *uiWindowParent(uiControl *c)
{
return NULL;
}
void uiWindowSetParent(uiControl *c, uiControl *parent)
{
uiUserBugCannotSetParentOnToplevel("uiWindow");
}
static int uiWindowToplevel(uiControl *c)
{
return 1;
}
uiUnixControlDefaultVisible(uiWindow)
static void uiWindowShow(uiControl *c)
{
uiWindow *w = uiWindow(c);
// don't use gtk_widget_show_all() as that will show all children, regardless of user settings
// don't use gtk_widget_show(); that doesn't bring to front or give keyboard focus
// (gtk_window_present() does call gtk_widget_show() though)
gtk_window_present(w->window);
// set the size properly
int width = w->width;
int height = w->height;
if (w->menubar)
{
GtkRequisition min, nat;
int menuheight;
gtk_widget_get_preferred_size(w->menubar, &min, &nat);
menuheight = min.height;
if (nat.height > menuheight) menuheight = nat.height;
height += menuheight;
}
gtk_window_resize(w->window, width, height);
}
static void uiWindowSetFocus(uiControl* c)
{
gtk_window_present(GTK_WINDOW(uiWindow(c)->widget));
}
uiUnixControlDefaultHide(uiWindow)
uiUnixControlDefaultEnabled(uiWindow)
uiUnixControlDefaultEnable(uiWindow)
uiUnixControlDefaultDisable(uiWindow)
//uiUnixControlDefaultSetFocus(uiWindow)
uiUnixControlDefaultSetMinSize(uiWindow)
// TODO?
uiUnixControlDefaultSetContainer(uiWindow)
char *uiWindowTitle(uiWindow *w)
{
return uiUnixStrdupText(gtk_window_get_title(w->window));
}
void uiWindowSetTitle(uiWindow *w, const char *title)
{
gtk_window_set_title(w->window, title);
}
void uiWindowContentSize(uiWindow *w, int *width, int *height)
{
GtkAllocation allocation;
gtk_widget_get_allocation(w->childHolderWidget, &allocation);
*width = allocation.width;
*height = allocation.height;
}
void uiWindowSetContentSize(uiWindow *w, int width, int height)
{
GtkAllocation childAlloc;
gint winWidth, winHeight;
// we need to resize the child holder widget to the given size
// we can't resize that without running the event loop
// but we can do gtk_window_set_size()
// so how do we deal with the differences in sizes?
// simple arithmetic, of course!
// from what I can tell, the return from gtk_widget_get_allocation(w->window) and gtk_window_get_size(w->window) will be the same
// this is not affected by Wayland and not affected by GTK+ builtin CSD
// so we can safely juse use them to get the real window size!
// since we're using gtk_window_resize(), use the latter
gtk_window_get_size(w->window, &winWidth, &winHeight);
// now get the child holder widget's current allocation
gtk_widget_get_allocation(w->childHolderWidget, &childAlloc);
// and punch that out of the window size
winWidth -= childAlloc.width;
winHeight -= childAlloc.height;
// now we just need to add the new size back in
winWidth += width;
winHeight += height;
// and set it
// this will not move the window in my tests, so we're good
gtk_window_resize(w->window, winWidth, winHeight);
}
int uiWindowMinimized(uiWindow *w)
{
// TODO!!
return 0;
}
void uiWindowSetMinimized(uiWindow *w, int minimized)
{
if (minimized)
gtk_window_iconify(w->window);
else
gtk_window_deiconify(w->window);
}
int uiWindowMaximized(uiWindow *w)
{
return gtk_window_is_maximized(w->window);
}
void uiWindowSetMaximized(uiWindow *w, int maximized)
{
if (maximized)
gtk_window_maximize(w->window);
else
gtk_window_unmaximize(w->window);
}
int uiWindowFullscreen(uiWindow *w)
{
return w->fullscreen;
}
// TODO use window-state-event to track
// TODO does this send an extra size changed?
// TODO what behavior do we want?
void uiWindowSetFullscreen(uiWindow *w, int fullscreen)
{
w->fullscreen = fullscreen;
if (w->fullscreen)
gtk_window_fullscreen(w->window);
else
gtk_window_unfullscreen(w->window);
}
void uiWindowOnContentSizeChanged(uiWindow *w, void (*f)(uiWindow *, void *), void *data)
{
w->onContentSizeChanged = f;
w->onContentSizeChangedData = data;
}
void uiWindowOnClosing(uiWindow *w, int (*f)(uiWindow *, void *), void *data)
{
w->onClosing = f;
w->onClosingData = data;
}
void uiWindowOnDropFile(uiWindow *w, void (*f)(uiWindow *, char *, void *), void *data)
{
w->onDropFile = f;
w->onDropFileData = data;
}
void uiWindowOnGetFocus(uiWindow *w, void (*f)(uiWindow *, void *), void *data)
{
w->onGetFocus = f;
w->onGetFocusData = data;
}
void uiWindowOnLoseFocus(uiWindow *w, void (*f)(uiWindow *, void *), void *data)
{
w->onLoseFocus = f;
w->onLoseFocusData = data;
}
int uiWindowBorderless(uiWindow *w)
{
return gtk_window_get_decorated(w->window) == FALSE;
}
void uiWindowSetBorderless(uiWindow *w, int borderless)
{
gtk_window_set_decorated(w->window, borderless == 0);
}
// TODO save and restore expands and aligns
void uiWindowSetChild(uiWindow *w, uiControl *child)
{
if (w->child != NULL) {
uiControlSetParent(w->child, NULL);
uiUnixControlSetContainer(uiUnixControl(w->child), w->childHolderContainer, TRUE);
}
w->child = child;
if (w->child != NULL) {
uiControlSetParent(w->child, uiControl(w));
uiUnixControlSetContainer(uiUnixControl(w->child), w->childHolderContainer, FALSE);
}
}
int uiWindowMargined(uiWindow *w)
{
return w->margined;
}
void uiWindowSetMargined(uiWindow *w, int margined)
{
w->margined = margined;
setMargined(w->childHolderContainer, w->margined);
}
static void onDragDataReceived(GtkWidget* widget, GdkDragContext* ctx, gint x, gint y, GtkSelectionData* data, guint info, guint time, gpointer userdata)
{
uiWindow* w = (uiWindow*)userdata;
if (gtk_selection_data_get_length(data) > 0 && gtk_selection_data_get_format(data) == 8)
{
gchar** files = gtk_selection_data_get_uris(data);
if (files != NULL && files[0] != NULL)
{
// TODO: multi file support?
gboolean success = FALSE;
gchar* file = g_filename_from_uri(files[0], NULL, NULL);
if (file)
{
if (w->onDropFile)
w->onDropFile(w, file, w->onDropFileData);
success = TRUE;
g_free(file);
}
g_strfreev(files);
gtk_drag_finish(ctx, success, FALSE, time);
return;
}
if (files != NULL) g_strfreev(files);
gtk_drag_finish(ctx, FALSE, FALSE, time);
}
}
void uiWindowSetDropTarget(uiWindow* w, int drop)
{
if (!drop)
{
gtk_drag_dest_unset(w->widget);
return;
}
GtkTargetEntry entry;
entry.target = "text/uri-list";
entry.flags = GTK_TARGET_OTHER_APP;
entry.info = 1;
// CHECKME: action copy?
gtk_drag_dest_set(w->widget, GTK_DEST_DEFAULT_ALL, &entry, 1, GDK_ACTION_COPY|GDK_ACTION_MOVE);
g_signal_connect(w->widget, "drag-data-received", G_CALLBACK(onDragDataReceived), w);
}
uiWindow *uiNewWindow(const char *title, int width, int height, int maximized, int hasMenubar, int resizable)
{
uiWindow *w;
if (!resizable) maximized = 0;
uiUnixNewControl(uiWindow, w);
w->widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
w->container = GTK_CONTAINER(w->widget);
w->window = GTK_WINDOW(w->widget);
gtk_window_set_title(w->window, title);
gtk_window_resize(w->window, width, height);
w->vboxWidget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
w->vboxContainer = GTK_CONTAINER(w->vboxWidget);
w->vbox = GTK_BOX(w->vboxWidget);
// set the vbox as the GtkWindow child
gtk_container_add(w->container, w->vboxWidget);
if (hasMenubar) {
w->menubar = makeMenubar(uiWindow(w));
gtk_container_add(w->vboxContainer, w->menubar);
}
else
w->menubar = NULL;
w->childHolderWidget = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
w->childHolderContainer = GTK_CONTAINER(w->childHolderWidget);
gtk_widget_set_hexpand(w->childHolderWidget, TRUE);
gtk_widget_set_halign(w->childHolderWidget, GTK_ALIGN_FILL);
gtk_widget_set_vexpand(w->childHolderWidget, TRUE);
gtk_widget_set_valign(w->childHolderWidget, GTK_ALIGN_FILL);
gtk_box_set_homogeneous(GTK_BOX(w->childHolderWidget), TRUE);
gtk_container_add(w->vboxContainer, w->childHolderWidget);
// show everything in the vbox, but not the GtkWindow itself
gtk_widget_show_all(w->vboxWidget);
// and connect our events
g_signal_connect(w->widget, "delete-event", G_CALLBACK(onClosing), w);
g_signal_connect(w->childHolderWidget, "size-allocate", G_CALLBACK(onSizeAllocate), w);
g_signal_connect(w->widget, "focus-in-event", G_CALLBACK(onGetFocus), w);
g_signal_connect(w->widget, "focus-out-event", G_CALLBACK(onLoseFocus), w);
uiWindowOnClosing(w, defaultOnClosing, NULL);
uiWindowOnContentSizeChanged(w, defaultOnPositionContentSizeChanged, NULL);
uiWindowOnDropFile(w, NULL, NULL);
uiWindowOnGetFocus(w, NULL, NULL);
uiWindowOnLoseFocus(w, NULL, NULL);
// normally it's SetParent() that does this, but we can't call SetParent() on a uiWindow
// TODO we really need to clean this up, especially since see uiWindowDestroy() above
g_object_ref(w->widget);
gtk_window_set_resizable(w->window, resizable?TRUE:FALSE);
w->width = width;
w->height = height;
if (maximized)
gtk_window_maximize(w->window);
else
gtk_window_set_position(w->window, GTK_WIN_POS_CENTER);
return w;
}