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center on source only if source is not visible

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brunoherbelin
2021-04-04 22:21:42 +02:00
parent 3e376eb166
commit dbc9803f9e
1 changed files with 15 additions and 9 deletions
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24
MixingView.cpp
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@@ -244,16 +244,22 @@ int MixingView::size ()
void MixingView::centerSource(Source *s)
{
// setup view so that the center of the source ends at screen coordinates (650, 150)
// -> this is just next to the navigation pannel
glm::vec2 screenpoint = glm::vec2(500.f, 20.f) * Rendering::manager().mainWindow().dpiScale();
glm::vec3 pos_to = Rendering::manager().unProject(screenpoint, scene.root()->transform_);
glm::vec3 pos_from( - s->group(View::MIXING)->scale_.x, s->group(View::MIXING)->scale_.y, 0.f);
pos_from += s->group(View::MIXING)->translation_;
glm::vec4 pos_delta = glm::vec4(pos_to.x, pos_to.y, 0.f, 0.f) - glm::vec4(pos_from.x, pos_from.y, 0.f, 0.f);
pos_delta = scene.root()->transform_ * pos_delta;
scene.root()->translation_ += glm::vec3(pos_delta);
// calculate screen area visible in the default view
GlmToolkit::AxisAlignedBoundingBox view_box;
glm::mat4 modelview = GlmToolkit::transform(scene.root()->translation_, scene.root()->rotation_, scene.root()->scale_);
view_box.extend( Rendering::manager().unProject(glm::vec2(0.f, Rendering::manager().mainWindow().height()), modelview) );
view_box.extend( Rendering::manager().unProject(glm::vec2(Rendering::manager().mainWindow().width(), 0.f), modelview) );
// check if upper-left corner of source is in view box
glm::vec3 pos_source = s->group(mode_)->translation_ + glm::vec3( -s->group(mode_)->scale_.x, s->group(mode_)->scale_.y, 0.f);
if ( !view_box.contains(pos_source)) {
// not visible so shift view
glm::vec2 screenpoint = glm::vec2(500.f, 20.f) * Rendering::manager().mainWindow().dpiScale();
glm::vec3 pos_to = Rendering::manager().unProject(screenpoint, scene.root()->transform_);
glm::vec4 pos_delta = glm::vec4(pos_to.x, pos_to.y, 0.f, 0.f) - glm::vec4(pos_source.x, pos_source.y, 0.f, 0.f);
pos_delta = scene.root()->transform_ * pos_delta;
scene.root()->translation_ += glm::vec3(pos_delta);
}
}
void MixingView::update(float dt)