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allow programmatically resizing windows

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This commit is contained in:
David Rose 2003-01-15 00:04:04 +00:00
parent 4b61f609ed
commit d260b486a7
2 changed files with 56 additions and 2 deletions
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56
panda/src/glxdisplay/glxGraphicsWindow.cxx
View File

@ -49,6 +49,7 @@ glxGraphicsWindow(GraphicsPipe *pipe) :
_xwindow = (Window)0;
_context = (GLXContext)0;
_visual = (XVisualInfo *)NULL;
_awaiting_configure = false;
GraphicsWindowInputDevice device =
GraphicsWindowInputDevice::pointer_and_keyboard("keyboard/mouse");
@ -120,6 +121,26 @@ make_current() {
glXMakeCurrent(_display, _xwindow, _context);
}
////////////////////////////////////////////////////////////////////
// Function: glxGraphicsWindow::begin_frame
// Access: Public, Virtual
// Description: This function will be called within the draw thread
// before beginning rendering for a given frame. It
// should do whatever setup is required, and return true
// if the frame should be rendered, or false if it
// should be skipped.
////////////////////////////////////////////////////////////////////
bool glxGraphicsWindow::
begin_frame() {
if (_awaiting_configure) {
// Don't attempt to draw while we have just reconfigured the
// window and we haven't got the notification back yet.
return false;
}
return GraphicsWindow::begin_frame();
}
////////////////////////////////////////////////////////////////////
// Function: glxGraphicsWindow::begin_flip
// Access: Public, Virtual
@ -170,6 +191,7 @@ process_events() {
break;
case ConfigureNotify:
_awaiting_configure = false;
properties.set_size(event.xconfigure.width, event.xconfigure.height);
system_changed_properties(properties);
break;
@ -282,7 +304,10 @@ set_properties_now(WindowProperties &properties) {
}
// The window is already open; we are limited to what we can change
// on the fly. This appears to be just the window title.
// on the fly.
// The window title may be changed by issuing another hint request.
// Assume this will be honored.
if (properties.has_title()) {
WindowProperties wm_properties;
wm_properties.set_title(properties.get_title());
@ -290,6 +315,33 @@ set_properties_now(WindowProperties &properties) {
set_wm_properties(wm_properties);
properties.clear_title();
}
// The size and position of an already-open window are changed via
// explicit X calls. These may still get intercepted by the window
// manager. Rather than changing _properties immediately, we'll
// wait for the ConfigureNotify message to come back.
XWindowChanges changes;
int value_mask = 0;
if (properties.has_origin()) {
changes.x = properties.get_x_origin();
changes.y = properties.get_y_origin();
value_mask |= (CWX | CWY);
properties.clear_origin();
}
if (properties.has_size()) {
changes.width = properties.get_x_size();
changes.height = properties.get_y_size();
value_mask |= (CWWidth | CWHeight);
properties.clear_size();
}
if (value_mask != 0) {
XConfigureWindow(_display, _xwindow, value_mask, &changes);
// Don't draw anything until this is done reconfiguring.
_awaiting_configure = true;
}
}
////////////////////////////////////////////////////////////////////
@ -436,7 +488,7 @@ set_wm_properties(const WindowProperties &properties) {
// Class to "Undecorated", and let the user configure his/her window
// manager not to put a border around windows of this class.
XClassHint *class_hints_p = NULL;
if (properties.has_undecorated() && properties.get_undecorated()) {
if (properties.get_undecorated()) {
class_hints_p = XAllocClassHint();
class_hints_p->res_class = "Undecorated";
}

2
panda/src/glxdisplay/glxGraphicsWindow.h
View File

@ -43,6 +43,7 @@ public:
virtual void release_gsg();
virtual void make_current();
virtual bool begin_frame();
virtual void begin_flip();
virtual void process_events();
@ -69,6 +70,7 @@ private:
XVisualInfo *_visual;
Colormap _colormap;
long _event_mask;
bool _awaiting_configure;
public: