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GFilePicker: Add a preview pane on the right-hand side for image previews.

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Currently the preview pane is always open, but maybe it should be something
you can configure, or something that happens automagically.
This commit is contained in:
Andreas Kling
2019-05-26 22:33:54 +02:00
parent 5ba2dba392
commit 3654c33c56
2 changed files with 85 additions and 22 deletions
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98
LibGUI/GFilePicker.cpp
View File

@@ -1,30 +1,35 @@
#include <LibGUI/GFilePicker.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GDirectoryModel.h>
#include <LibGUI/GTextBox.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GSortingProxyModel.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GToolBar.h>
#include <LibGUI/GInputBox.h>
#include <LibGUI/GMessageBox.h>
#include <AK/FileSystemPath.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GDirectoryModel.h>
#include <LibGUI/GFilePicker.h>
#include <LibGUI/GInputBox.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GMessageBox.h>
#include <LibGUI/GSortingProxyModel.h>
#include <LibGUI/GTextBox.h>
#include <LibGUI/GToolBar.h>
#include <SharedGraphics/PNGLoader.h>
GFilePicker::GFilePicker(const String& path, CObject* parent)
: GDialog(parent)
, m_model(GDirectoryModel::create())
{
set_title("GFilePicker");
set_rect(200, 200, 400, 300);
set_main_widget(new GWidget);
main_widget()->set_layout(make<GBoxLayout>(Orientation::Vertical));
main_widget()->layout()->set_margins({ 4, 4, 4, 4 });
main_widget()->layout()->set_spacing(4);
main_widget()->set_fill_with_background_color(true);
main_widget()->set_background_color(Color::LightGray);
set_rect(200, 200, 700, 400);
auto* horizontal_container = new GWidget;
set_main_widget(horizontal_container);
horizontal_container->set_layout(make<GBoxLayout>(Orientation::Horizontal));
horizontal_container->layout()->set_margins({ 4, 4, 4, 4 });
horizontal_container->set_fill_with_background_color(true);
horizontal_container->set_background_color(Color::LightGray);
auto* upper_container = new GWidget(main_widget());
auto* vertical_container = new GWidget(horizontal_container);
vertical_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
vertical_container->layout()->set_spacing(4);
auto* upper_container = new GWidget(vertical_container);
upper_container->set_layout(make<GBoxLayout>(Orientation::Horizontal));
upper_container->layout()->set_spacing(4);
upper_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
@@ -39,7 +44,7 @@ GFilePicker::GFilePicker(const String& path, CObject* parent)
location_textbox->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
location_textbox->set_preferred_size({ 0, 20 });
m_view = new GTableView(main_widget());
m_view = new GTableView(vertical_container);
m_view->set_model(GSortingProxyModel::create(*m_model));
m_view->set_column_hidden(GDirectoryModel::Column::Owner, true);
m_view->set_column_hidden(GDirectoryModel::Column::Group, true);
@@ -49,10 +54,12 @@ GFilePicker::GFilePicker(const String& path, CObject* parent)
location_textbox->on_return_pressed = [&] {
m_model->open(location_textbox->text());
clear_preview();
};
auto open_parent_directory_action = GAction::create("Open parent directory", { Mod_Alt, Key_Up }, GraphicsBitmap::load_from_file("/res/icons/16x16/open-parent-directory.png"), [this] (const GAction&) {
m_model->open(String::format("%s/..", m_model->path().characters()));
clear_preview();
});
toolbar->add_action(*open_parent_directory_action);
@@ -73,7 +80,7 @@ GFilePicker::GFilePicker(const String& path, CObject* parent)
});
toolbar->add_action(*mkdir_action);
auto* lower_container = new GWidget(main_widget());
auto* lower_container = new GWidget(vertical_container);
lower_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
lower_container->layout()->set_spacing(4);
lower_container->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
@@ -96,11 +103,14 @@ GFilePicker::GFilePicker(const String& path, CObject* parent)
FileSystemPath path(String::format("%s/%s", m_model->path().characters(), entry.name.characters()));
clear_preview();
if (entry.is_directory()) {
m_model->open(path.string());
// NOTE: 'entry' is invalid from here on
} else {
filename_textbox->set_text(entry.name);
set_preview(path);
}
};
@@ -128,8 +138,54 @@ GFilePicker::GFilePicker(const String& path, CObject* parent)
m_selected_file = path;
done(ExecOK);
};
auto* preview_container = new GFrame(horizontal_container);
preview_container->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
preview_container->set_preferred_size({ 180, 0 });
preview_container->set_frame_shape(FrameShape::Container);
preview_container->set_frame_shadow(FrameShadow::Sunken);
preview_container->set_frame_thickness(2);
preview_container->set_layout(make<GBoxLayout>(Orientation::Vertical));
preview_container->layout()->set_margins({ 8, 8, 8, 8 });
m_preview_image_label = new GLabel(preview_container);
m_preview_image_label->set_should_stretch_icon(true);
m_preview_image_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
m_preview_image_label->set_preferred_size({ 160, 160 });
m_preview_name_label = new GLabel(preview_container);
m_preview_name_label->set_font(Font::default_bold_font());
m_preview_name_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
m_preview_name_label->set_preferred_size({ 0, m_preview_name_label->font().glyph_height() });
m_preview_geometry_label = new GLabel(preview_container);
m_preview_geometry_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
m_preview_geometry_label->set_preferred_size({ 0, m_preview_name_label->font().glyph_height() });
}
GFilePicker::~GFilePicker()
{
}
void GFilePicker::set_preview(const FileSystemPath& path)
{
if (path.has_extension(".png")) {
auto bitmap = load_png(path.string());
if (!bitmap) {
clear_preview();
return;
}
bool should_stretch = bitmap->width() > m_preview_image_label->width() || bitmap->height() > m_preview_image_label->height();
m_preview_name_label->set_text(path.basename());
m_preview_geometry_label->set_text(bitmap->size().to_string());
m_preview_image_label->set_should_stretch_icon(should_stretch);
m_preview_image_label->set_icon(move(bitmap));
}
}
void GFilePicker::clear_preview()
{
m_preview_image_label->set_icon(nullptr);
m_preview_name_label->set_text(String::empty());
m_preview_geometry_label->set_text(String::empty());
}