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Cache font previews in FontPopup

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This commit is contained in:
David Capello 2015-11-04 12:17:30 -03:00
parent 41e9203918
commit ac5d3c7e36
1 changed files with 13 additions and 5 deletions
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18
src/app/ui/font_popup.cpp
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@ -24,6 +24,7 @@
#include "base/unique_ptr.h"
#include "doc/conversion_she.h"
#include "doc/image.h"
#include "doc/image_ref.h"
#include "she/surface.h"
#include "she/system.h"
#include "ui/box.h"
@ -40,17 +41,20 @@
#endif
#include <queue>
#include <map>
namespace app {
using namespace ui;
static std::map<std::string, doc::ImageRef> g_thumbnails;
class FontItem : public ListItem {
public:
FontItem(const std::string& fn)
: ListItem(base::get_file_title(fn))
, m_filename(fn)
, m_loaded(false) {
, m_image(g_thumbnails[fn])
, m_filename(fn) {
}
const std::string& filename() const {
@ -86,6 +90,9 @@ private:
}
void onSelect() override {
if (m_image)
return;
ListBox* listbox = static_cast<ListBox*>(getParent());
if (!listbox)
return;
@ -94,7 +101,6 @@ private:
gfx::Color color = theme->colors.text();
try {
m_loaded = true;
m_image.reset(
render_text(
m_filename, 16,
@ -107,6 +113,9 @@ private:
View* view = View::getView(listbox);
view->updateView();
listbox->makeChildVisible(this);
// Save the thumbnail for future FontPopups
g_thumbnails[m_filename] = m_image;
}
catch (const std::exception&) {
// Ignore errors
@ -114,9 +123,8 @@ private:
}
private:
base::UniquePtr<doc::Image> m_image;
doc::ImageRef m_image;
std::string m_filename;
bool m_loaded;
};
FontPopup::FontPopup()