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Simplify layout and rendering

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Remove pre-scaling of the bounds for the keyboard and its contents.
Calculate the scale factor based on the allocation and the desired width
and height of each keyboard, using the lower value of the horizontal and
vertical scale factors.
Apply scaling in the renderer and prepare to perform centering there.
This commit is contained in:
David Boddie
2019-07-30 14:14:15 +00:00
parent 1846a67e83
commit 8f1de46381
5 changed files with 54 additions and 152 deletions
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52
eek/eek-layout.c
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@ -129,60 +129,8 @@ eek_layout_place_sections(EekKeyboard *keyboard)
eek_element_set_bounds(EEK_ELEMENT(keyboard), &keyboard_bounds);
}
static void scale_bounds_callback (EekElement *element,
gpointer user_data);
static void
scale_bounds (EekElement *element,
gdouble scale)
{
EekBounds bounds;
eek_element_get_bounds (element, &bounds);
bounds.x *= scale;
bounds.y *= scale;
bounds.width *= scale;
bounds.height *= scale;
eek_element_set_bounds (element, &bounds);
if (EEK_IS_CONTAINER(element))
eek_container_foreach_child (EEK_CONTAINER(element),
scale_bounds_callback,
&scale);
}
static void
scale_bounds_callback (EekElement *element,
gpointer user_data)
{
scale_bounds (element, *(gdouble *)user_data);
}
void
eek_layout_scale_keyboard(EekKeyboard *keyboard, gdouble scale)
{
gsize n_outlines;
scale_bounds (EEK_ELEMENT(keyboard), scale);
n_outlines = eek_keyboard_get_n_outlines (keyboard);
for (guint i = 0; i < n_outlines; i++) {
EekOutline *outline = eek_keyboard_get_outline (keyboard, i);
gint j;
for (j = 0; j < outline->num_points; j++) {
outline->points[j].x *= scale;
outline->points[j].y *= scale;
}
}
keyboard->scale = scale;
}
void
eek_layout_update_layout(EekKeyboard *keyboard)
{
eek_layout_scale_keyboard(keyboard, 1.0 / keyboard->scale);
eek_layout_place_sections(keyboard);
eek_layout_scale_keyboard(keyboard, 1.0 / keyboard->scale);
}