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Fix ArrangeWindowsStack* for multi-head displays

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* Fix integer wrap around for some situations (resulting in a very wide
  window):

      w = max_width - x_offs - (*closest)->widthOffset()

  If the given window is on the right most display and thus 'x_offs' is
  bigger than 'max_width' (half of the display width), the resulting 'w' wraps
  around and becomes very large.

* Place a single window via ArrangeWindowsStack* as well
* Some minor code styling / reordering along the way
This commit is contained in:
Mathias Gumz 2013-08-02 11:19:26 +02:00
parent 57ec44e994
commit ff3635ad0a
1 changed files with 67 additions and 62 deletions
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109
src/WorkspaceCmd.cc
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@ -407,20 +407,17 @@ void ArrangeWindowsCmd::execute() {
// - only on current head
const int head = screen->getCurrHead();
Workspace::Windows::iterator win;
Workspace::Windows normal_windows;
Workspace::Windows shaded_windows;
FluxboxWindow* main_window = NULL; // Main (big) window for stacked modes
for(win = space->windowList().begin(); win != space->windowList().end(); ++win) {
for (win = space->windowList().begin(); win != space->windowList().end(); ++win) {
int winhead = screen->getHead((*win)->fbWindow());
if ((winhead == head || winhead == 0) && m_pat.match(**win)) {
// If using stacked tiling, and this window is focused, set it as main window
if (((m_tile_method == STACKLEFT) || (m_tile_method == STACKRIGHT)
|| (m_tile_method == STACKBOTTOM) || (m_tile_method == STACKTOP))
&& (*win)->isFocused()){
if ((m_tile_method >= STACKLEFT) && (*win)->isFocused()) {
main_window = (*win);
}
else{
} else {
if ((*win)->isShaded())
shaded_windows.push_back(*win);
else
@ -428,31 +425,35 @@ void ArrangeWindowsCmd::execute() {
}
}
}
// if using stacked-left/right/top/bottom and we don't have a main window yet
// (no focused window?), we'll fall back on using the last window in the
// window list.
if (main_window == NULL)
{
if ((m_tile_method == STACKLEFT) || (m_tile_method == STACKRIGHT)
|| (m_tile_method == STACKTOP) || (m_tile_method == STACKBOTTOM)) {
if (main_window == NULL && (m_tile_method >= STACKLEFT)) {
main_window = normal_windows.back();
normal_windows.pop_back();
}
}
// to arrange only shaded windows is a bit pointless imho (mathias)
size_t win_count = normal_windows.size();
if (win_count == 0)
if (win_count == 0) {
if (!main_window) {
return;
}
win_count = 1;
}
int x_offs = screen->maxLeft(head); // window position offset in x
int y_offs = screen->maxTop(head); // window position offset in y
unsigned int max_width = screen->maxRight(head) - screen->maxLeft(head);
// If stacked left or right, max width is divided in 2
if ((m_tile_method == STACKLEFT) || (m_tile_method == STACKRIGHT)){
unsigned int max_height = screen->maxBottom(head) - screen->maxTop(head);
if ((m_tile_method == STACKLEFT) || (m_tile_method == STACKRIGHT)) {
max_width = max_width / 2;
}
unsigned int max_height = screen->maxBottom(head) - screen->maxTop(head);
// If stacked top or bottom, max height is divided in 2
if ((m_tile_method == STACKTOP) || (m_tile_method == STACKBOTTOM)){
if ((m_tile_method == STACKTOP) || (m_tile_method == STACKBOTTOM)) {
max_height = max_height / 2;
}
@ -464,29 +465,27 @@ void ArrangeWindowsCmd::execute() {
std::swap(cols, rows);
}
unsigned int x_offs = screen->maxLeft(head); // window position offset in x
unsigned int y_offs = screen->maxTop(head); // window position offset in y
// Stacked mode only uses half the screen for tiled windows, so adjust offset to half the screen
// (horizontal or vertical depending on stacking mode)
switch(m_tile_method)
{
// Stacked mode only uses half the screen for tiled windows, so adjust
// offset to half the screen (horizontal or vertical depending on
// stacking mode)
switch (m_tile_method) {
case STACKRIGHT:
x_offs = int(abs((screen->maxLeft(head)-screen->maxRight(head)))/2);
x_offs += static_cast<int>(max_width);
break;
case STACKBOTTOM:
y_offs = int(abs(screen->maxBottom(head) - screen->maxTop(head))/2);
y_offs += static_cast<int>(max_height);
break;
default:
// no change needed for STACKLEFT/STACKTOP
break;
}
// Since the placing algorithm loop below modifies the offsets, but we still need them to
// position the main window, we save the calculated values.
const unsigned int orig_x_offs = x_offs;
const unsigned int orig_y_offs = y_offs;
// unsigned int window = 0; // current window
const unsigned int cal_width = max_width/cols; // calculated width ratio (width of every window)
// Since the placing algorithm loop below modifies the offsets, but we
// still need them to position the main window, we save the calculated
// values.
const int orig_x_offs = x_offs;
const int orig_y_offs = y_offs;
unsigned int i;
unsigned int j;
@ -509,7 +508,9 @@ void ArrangeWindowsCmd::execute() {
if (!shaded_windows.empty())
max_height -= i * (*shaded_windows.begin())->frame().height();
const unsigned int cal_width = max_width/cols; // width ratio (width of every window)
const unsigned int cal_height = max_height/rows; // height ratio (height of every window)
// Resizes and sets windows positions in columns and rows.
for (i = 0; i < rows; ++i) {
x_offs = orig_x_offs;
@ -534,48 +535,52 @@ void ArrangeWindowsCmd::execute() {
}
}
if (normal_windows.size() > 1) {
(*closest)->moveResize(x_offs + (*closest)->xOffset(),
y_offs + (*closest)->yOffset(),
cal_width - (*closest)->widthOffset(),
cal_height - (*closest)->heightOffset());
} else { // the last window gets everything that is left.
(*closest)->moveResize(x_offs + (*closest)->xOffset(),
y_offs + (*closest)->yOffset(),
max_width - x_offs - (*closest)->widthOffset(),
cal_height - (*closest)->heightOffset());
int x = x_offs + (*closest)->xOffset();
int y = y_offs + (*closest)->yOffset();
unsigned int w = cal_width - (*closest)->widthOffset();
unsigned int h = cal_height - (*closest)->heightOffset();
// the last window gets everything that is left.
if (normal_windows.size() == 1) {
w = static_cast<int>(screen->maxRight(head)) - x_offs - (*closest)->widthOffset();
h = static_cast<int>(cal_height) - (*closest)->heightOffset();
if (m_tile_method == STACKLEFT) {
w -= max_width;
}
}
(*closest)->moveResize(x, y, w, h);
normal_windows.erase(closest);
// next x offset
x_offs += cal_width;
x_offs += static_cast<int>(cal_width);
}
// next y offset
y_offs += cal_height;
y_offs += static_cast<int>(cal_height);
}
// If using a stacked mechanism we now need to place the main window.
if (main_window != NULL){
x_offs = screen->maxLeft(head);
switch (m_tile_method){
case STACKLEFT:
main_window->moveResize(max_width,orig_y_offs,max_width,max_height);
main_window->moveResize(x_offs + max_width, orig_y_offs, max_width, max_height);
break;
case STACKRIGHT:
main_window->moveResize(screen->maxLeft(head),screen->maxTop(head),max_width,max_height);
main_window->moveResize(x_offs, screen->maxTop(head), max_width, max_height);
break;
case STACKTOP:
main_window->moveResize(screen->maxLeft(head),max_height,max_width,max_height);
main_window->moveResize(x_offs, max_height, max_width, max_height);
break;
case STACKBOTTOM:
main_window->moveResize(screen->maxLeft(head),screen->maxTop(head),max_width,max_height);
main_window->moveResize(x_offs, screen->maxTop(head), max_width, max_height);
break;
default:
// Shouldn't happen.
break;
}
}
}
REGISTER_COMMAND(showdesktop, ShowDesktopCmd, void);