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monitor-config: refactor make_default_config()

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Move logic for creating different types of configurations into separate
functions. This keeps things a bit cleaner and allows us to add alternate
configuration types more easily.
This commit is contained in:
Jonathon Jongsma 2014-11-17 15:13:15 -06:00
parent 6e25c37da1
commit a0d2d207e7
1 changed files with 86 additions and 60 deletions
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144
src/backends/meta-monitor-config.c
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@ -1096,40 +1096,63 @@ init_config_from_preferred_mode (MetaOutputConfig *config,
config->is_presentation = FALSE;
}
static MetaConfiguration *
make_default_config (MetaMonitorConfig *self,
static void
make_linear_config (MetaMonitorConfig *self,
MetaOutput *outputs,
unsigned n_outputs,
int max_width,
int max_height)
int max_height,
MetaConfiguration *config)
{
unsigned i, j;
int x, y;
MetaConfiguration *ret;
MetaOutput *primary;
unsigned i;
int x;
ret = config_new ();
make_config_key (ret, outputs, n_outputs, -1);
ret->outputs = g_new0 (MetaOutputConfig, n_outputs);
g_return_if_fail (config != NULL);
/* Special case the simple case: one output, primary at preferred mode,
nothing else to do */
if (n_outputs == 1)
primary = find_primary_output (outputs, n_outputs);
x = primary->preferred_mode->width;
for (i = 0; i < n_outputs; i++)
{
init_config_from_preferred_mode (&ret->outputs[0], &outputs[0]);
ret->outputs[0].is_primary = TRUE;
return ret;
gboolean is_primary = (&outputs[i] == primary);
init_config_from_preferred_mode (&config->outputs[i], &outputs[i]);
config->outputs[i].is_primary = is_primary;
if (is_primary)
{
config->outputs[i].rect.x = 0;
}
else
{
config->outputs[i].rect.x = x;
x += config->outputs[i].rect.width;
}
/* If we reach this point, this is either the first time mutter runs
on this system ever, or we just hotplugged a new screen.
In the latter case, search for a configuration that includes one
less screen, then add the new one as a presentation screen
in preferred mode.
/* Disable outputs that would go beyond framebuffer limits */
if (config->outputs[i].rect.x + config->outputs[i].rect.width > max_width)
config->outputs[i].enabled = FALSE;
}
}
XXX: but presentation mode is not implemented in the control-center
or in mutter core, so let's do extended for now.
/* Search for a configuration that includes one less screen, then add the new
* one as a presentation screen in preferred mode.
*
* XXX: but presentation mode is not implemented in the control-center or in
* mutter core, so let's do extended for now.
*/
static gboolean
extend_stored_config (MetaMonitorConfig *self,
MetaOutput *outputs,
unsigned n_outputs,
int max_width,
int max_height,
MetaConfiguration *config)
{
int x, y;
unsigned i, j;
x = 0;
y = 0;
for (i = 0; i < n_outputs; i++)
@ -1147,64 +1170,67 @@ make_default_config (MetaMonitorConfig *self,
{
if (j < i)
{
g_assert (output_key_equal (&ret->keys[j], &ref->keys[j]));
ret->outputs[j] = ref->outputs[j];
g_assert (output_key_equal (&config->keys[j], &ref->keys[j]));
config->outputs[j] = ref->outputs[j];
x = MAX (x, ref->outputs[j].rect.x + ref->outputs[j].rect.width);
y = MAX (y, ref->outputs[j].rect.y + ref->outputs[j].rect.height);
}
else if (j > i)
{
g_assert (output_key_equal (&ret->keys[j], &ref->keys[j - 1]));
ret->outputs[j] = ref->outputs[j - 1];
g_assert (output_key_equal (&config->keys[j], &ref->keys[j - 1]));
config->outputs[j] = ref->outputs[j - 1];
x = MAX (x, ref->outputs[j - 1].rect.x + ref->outputs[j - 1].rect.width);
y = MAX (y, ref->outputs[j - 1].rect.y + ref->outputs[j - 1].rect.height);
}
else
{
init_config_from_preferred_mode (&ret->outputs[j], &outputs[0]);
init_config_from_preferred_mode (&config->outputs[j], &outputs[0]);
}
}
/* Place the new output at the right end of the screen, if it fits,
otherwise below it, otherwise disable it (or apply_configuration will fail) */
if (x + ret->outputs[i].rect.width <= max_width)
ret->outputs[i].rect.x = x;
else if (y + ret->outputs[i].rect.height <= max_height)
ret->outputs[i].rect.y = y;
if (x + config->outputs[i].rect.width <= max_width)
config->outputs[i].rect.x = x;
else if (y + config->outputs[i].rect.height <= max_height)
config->outputs[i].rect.y = y;
else
ret->outputs[i].enabled = FALSE;
config->outputs[i].enabled = FALSE;
return TRUE;
}
}
return FALSE;
}
static MetaConfiguration *
make_default_config (MetaMonitorConfig *self,
MetaOutput *outputs,
unsigned n_outputs,
int max_width,
int max_height)
{
MetaConfiguration *ret = NULL;
ret = config_new ();
make_config_key (ret, outputs, n_outputs, -1);
ret->outputs = g_new0 (MetaOutputConfig, n_outputs);
/* Special case the simple case: one output, primary at preferred mode,
nothing else to do */
if (n_outputs == 1)
{
init_config_from_preferred_mode (&ret->outputs[0], &outputs[0]);
ret->outputs[0].is_primary = TRUE;
return ret;
}
}
/* No previous configuration found, try with a really default one, which
is one primary that goes first and the rest to the right of it, extended.
*/
primary = find_primary_output (outputs, n_outputs);
if (extend_stored_config (self, outputs, n_outputs, max_width, max_height, ret))
return ret;
x = primary->preferred_mode->width;
for (i = 0; i < n_outputs; i++)
{
gboolean is_primary = (&outputs[i] == primary);
init_config_from_preferred_mode (&ret->outputs[i], &outputs[i]);
ret->outputs[i].is_primary = is_primary;
if (is_primary)
{
ret->outputs[i].rect.x = 0;
}
else
{
ret->outputs[i].rect.x = x;
x += ret->outputs[i].rect.width;
}
/* Disable outputs that would go beyond framebuffer limits */
if (ret->outputs[i].rect.x + ret->outputs[i].rect.width > max_width)
ret->outputs[i].enabled = FALSE;
}
make_linear_config (self, outputs, n_outputs, max_width, max_height, ret);
return ret;
}