Method ReInit

src/window.cpp:980–1016

* Re-initialize a window, and optionally change its size. * @param rx Horizontal resize of the window. * @param ry Vertical resize of the window. * @param reposition If set, reposition the window to default location. * @note For just resizing the window, use #ResizeWindow instead. */

 * @note For just resizing the window, use #ResizeWindow instead.
 */
void Window::ReInit(int rx, int ry, bool reposition)
{
	this->SetDirty(); // Mark whole current window as dirty.

	/* Save current size. */
	int window_width  = this->width * _gui_scale / this->scale;
	int window_height = this->height * _gui_scale / this->scale;
	this->scale = _gui_scale;

	this->OnInit();
	/* Re-initialize window smallest size. */
	this->nested_root->SetupSmallestSize(this);
	this->nested_root->AssignSizePosition(ST_SMALLEST, 0, 0, this->nested_root->smallest_x, this->nested_root->smallest_y, _current_text_dir == TD_RTL);
	this->width  = this->nested_root->smallest_x;
	this->height = this->nested_root->smallest_y;
	this->resize.step_width  = this->nested_root->resize_x;
	this->resize.step_height = this->nested_root->resize_y;

	/* Resize as close to the original size + requested resize as possible. */
	window_width  = std::max(window_width  + rx, this->width);
	window_height = std::max(window_height + ry, this->height);
	int dx = (this->resize.step_width  == 0) ? 0 : window_width  - this->width;
	int dy = (this->resize.step_height == 0) ? 0 : window_height - this->height;
	/* dx and dy has to go by step.. calculate it.
	 * The cast to int is necessary else dx/dy are implicitly cast to unsigned int, which won't work. */
	if (this->resize.step_width  > 1) dx -= dx % (int)this->resize.step_width;
	if (this->resize.step_height > 1) dy -= dy % (int)this->resize.step_height;

	if (reposition) {
		Point pt = this->OnInitialPosition(this->nested_root->smallest_x, this->nested_root->smallest_y, window_number);
		this->InitializePositionSize(pt.x, pt.y, this->nested_root->smallest_x, this->nested_root->smallest_y);
		this->FindWindowPlacementAndResize(this->window_desc.GetDefaultWidth(), this->window_desc.GetDefaultHeight(), false);
	}

	ResizeWindow(this, dx, dy, true, false);
	/* ResizeWindow() does this->SetDirty() already, no need to do it again here. */
}

/**
 * Set the shaded state of the window to \a make_shaded.