void InsetExternal::metrics(MetricsInfo & mi, Dimension & dim) const
{
+ if (!isRendererValid())
+ updatePreview();
+
renderer_->metrics(mi, dim);
}
void InsetExternal::draw(PainterInfo & pi, int x, int y) const
{
+ if (!isRendererValid())
+ updatePreview();
+
if (renderer_->asButton())
renderer_->setRenderState(mouse_hover_[pi.base.bv]);
renderer_->draw(pi, x, y);
}
-void InsetExternal::updatePreview()
+bool InsetExternal::isPreviewed() const
+{
+ return (external::getTemplatePtr(params_) && !params_.filename.empty()
+ && params_.display
+ && lyxrc.display_graphics
+ && params_.preview_mode != PREVIEW_OFF
+ && (params_.preview_mode != PREVIEW_INSTANT
+ || RenderPreview::previewText()));
+}
+
+
+bool InsetExternal::isRendererValid() const
{
- setParams(params_);
+ if (!renderer_->asButton())
+ return isPreviewed();
+ return !isPreviewed();
}
// will use this.
defaultTemplateName = params_.templatename();
- if (!external::getTemplatePtr(params_) || params_.filename.empty()
- || !params_.display
- || !lyxrc.display_graphics
- || params_.preview_mode == PREVIEW_OFF
- || (params_.preview_mode == PREVIEW_INSTANT
- && !RenderPreview::previewText())) {
+ updatePreview();
+}
+
+
+void InsetExternal::updatePreview() const
+{
+ if (!isPreviewed()) {
RenderButton * button_ptr = renderer_->asButton();
if (!button_ptr) {
renderer_.reset(new RenderButton);