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/*
* Copyright (C) 2009 by the Widelands Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "ui_basic/spinbox.h"
#include <map>
#include <vector>
#include <boost/format.hpp>
#include "base/i18n.h"
#include "base/log.h"
#include "base/macros.h"
#include "base/wexception.h"
#include "graphic/font_handler1.h"
#include "graphic/text/font_set.h"
#include "graphic/text_constants.h"
#include "ui_basic/button.h"
#include "ui_basic/multilinetextarea.h"
#include "ui_basic/textarea.h"
namespace UI {
struct SpinBoxImpl {
/// Value hold by the spinbox
int32_t value;
/// Minimum and maximum that \ref value may reach
int32_t min;
int32_t max;
/// List of possible values for type kValueList
std::vector<int32_t> values;
/// The unit of the value
UI::SpinBox::Units unit;
/// Background tile style of buttons.
const Image* background;
/// Special names for specific values
std::map<int32_t, std::string> value_replacements;
/// The UI parts
Textarea* text;
Button* button_plus;
Button* button_minus;
Button* button_ten_plus;
Button* button_ten_minus;
};
/**
* SpinBox constructor:
*
* initializes a new spinbox with either two (big = false) or four (big = true)
* buttons. w must be >= the space taken up by the buttons, else the spinbox would become useless
* and so
* throws an exception.
* The spinbox' height and button size is set automatically according to the height of its textarea.
*/
SpinBox::SpinBox(Panel* const parent,
const int32_t x,
const int32_t y,
const uint32_t w,
const uint32_t unit_w,
int32_t const startval,
int32_t const minval,
int32_t const maxval,
const std::string& label_text,
const SpinBox::Units& unit,
const Image* background,
SpinBox::Type type,
int32_t step_size,
int32_t big_step_size)
: Panel(parent, x, y, std::max(w, unit_w), 0), type_(type), sbi_(new SpinBoxImpl) {
if (type_ == SpinBox::Type::kValueList) {
sbi_->min = 0;
sbi_->max = 0;
} else {
sbi_->min = minval;
sbi_->max = maxval;
}
sbi_->value = startval;
sbi_->unit = unit;
sbi_->background = background;
bool is_big = type_ == SpinBox::Type::kBig;
uint32_t padding = 2;
uint32_t actual_w = std::max(w, unit_w);
uint32_t no_padding = (is_big ? 6 : 4);
// Give some height margin = 2 to keep the label from generating a scrollbar.
uint32_t texth =
UI::g_fh1->render(as_uifont(UI::g_fh1->fontset()->representative_character()))->height() + 2;
uint32_t buttonh = 20;
// 40 is an ad hoc width estimate for the MultilineTextarea scrollbar + a bit of text.
if (!label_text.empty() && (w + padding) <= unit_w - 40) {
throw wexception(
"SpinBox: Overall width %d must be bigger than unit width %d + %d * %d + 40 for padding",
w, unit_w, no_padding, padding);
}
if (unit_w < (is_big ? 7 * buttonh : 3 * buttonh)) {
log("Not enough space to draw spinbox \"%s\".\n"
"Width %d is smaller than required width %d."
"Please report as a bug.\n",
label_text.c_str(), unit_w, (is_big ? 7 * buttonh : 3 * buttonh));
}
box_ = new UI::Box(this, 0, 0, UI::Box::Horizontal, actual_w, texth, padding);
UI::MultilineTextarea* label =
new UI::MultilineTextarea(box_, 0, 0, w - unit_w - no_padding * padding, texth, label_text,
UI::Align::kLeft, UI::MultilineTextarea::ScrollMode::kNoScrolling);
box_->add(label, UI::Align::kHCenter);
sbi_->text = new UI::Textarea(box_, "", UI::Align::kCenter);
sbi_->button_minus =
new Button(box_, "-", 0, 0, buttonh, buttonh, sbi_->background,
g_gr->images().get(is_big ? "images/ui_basic/scrollbar_left.png" :
"images/ui_basic/scrollbar_down.png"),
_("Decrease the value"));
sbi_->button_plus =
new Button(box_, "+", 0, 0, buttonh, buttonh, sbi_->background,
g_gr->images().get(is_big ? "images/ui_basic/scrollbar_right.png" :
"images/ui_basic/scrollbar_up.png"),
_("Increase the value"));
if (is_big) {
sbi_->button_ten_minus =
new Button(box_, "--", 0, 0, 2 * buttonh, buttonh, sbi_->background,
g_gr->images().get("images/ui_basic/scrollbar_left_fast.png"),
_("Decrease the value by 10"));
sbi_->button_ten_plus =
new Button(box_, "++", 0, 0, 2 * buttonh, buttonh, sbi_->background,
g_gr->images().get("images/ui_basic/scrollbar_right_fast.png"),
_("Increase the value by 10"));
sbi_->button_ten_plus->sigclicked.connect(
boost::bind(&SpinBox::change_value, boost::ref(*this), big_step_size));
sbi_->button_ten_minus->sigclicked.connect(
boost::bind(&SpinBox::change_value, boost::ref(*this), -1 * big_step_size));
sbi_->button_ten_plus->set_repeating(true);
sbi_->button_ten_minus->set_repeating(true);
buttons_.push_back(sbi_->button_ten_minus);
buttons_.push_back(sbi_->button_ten_plus);
sbi_->text->set_fixed_width(unit_w - 2 * sbi_->button_ten_plus->get_w() -
2 * sbi_->button_minus->get_w() - 2 * padding);
box_->add(sbi_->button_ten_minus, UI::Align::kTop);
box_->add(sbi_->button_minus, UI::Align::kTop);
box_->add(sbi_->text, UI::Align::kTop);
box_->add(sbi_->button_plus, UI::Align::kTop);
box_->add(sbi_->button_ten_plus, UI::Align::kTop);
} else {
sbi_->text->set_fixed_width(unit_w - 2 * sbi_->button_minus->get_w());
box_->add(sbi_->button_minus, UI::Align::kHCenter);
box_->add(sbi_->text, UI::Align::kHCenter);
box_->add(sbi_->button_plus, UI::Align::kHCenter);
}
sbi_->button_plus->sigclicked.connect(
boost::bind(&SpinBox::change_value, boost::ref(*this), step_size));
sbi_->button_minus->sigclicked.connect(
boost::bind(&SpinBox::change_value, boost::ref(*this), -1 * step_size));
sbi_->button_plus->set_repeating(true);
sbi_->button_minus->set_repeating(true);
buttons_.push_back(sbi_->button_minus);
buttons_.push_back(sbi_->button_plus);
uint32_t box_height = std::max(label->get_h(), static_cast<int32_t>(buttonh));
box_->set_size(actual_w, box_height);
set_desired_size(actual_w, box_height);
set_size(actual_w, box_height);
update();
}
SpinBox::~SpinBox() {
delete sbi_;
sbi_ = nullptr;
}
/**
* private function - takes care about all updates in the UI elements
*/
void SpinBox::update() {
if (sbi_->value_replacements.count(sbi_->value) == 1) {
sbi_->text->set_text(sbi_->value_replacements.at(sbi_->value));
} else {
if (type_ == SpinBox::Type::kValueList) {
if ((sbi_->value >= 0) && (sbi_->values.size() > static_cast<size_t>(sbi_->value))) {
sbi_->text->set_text(unit_text(sbi_->values.at(sbi_->value)));
} else {
sbi_->text->set_text(
"undefined"); // The user should never see this, so we're not localizing
}
} else {
sbi_->text->set_text(unit_text(sbi_->value));
}
}
sbi_->button_minus->set_enabled(sbi_->min < sbi_->value);
sbi_->button_plus->set_enabled(sbi_->value < sbi_->max);
if (type_ == SpinBox::Type::kBig) {
sbi_->button_ten_minus->set_enabled(sbi_->min < sbi_->value);
sbi_->button_ten_plus->set_enabled(sbi_->value < sbi_->max);
}
}
/**
* private function called by spinbox buttons to in-/decrease the value
*/
void SpinBox::change_value(int32_t const value) {
set_value(value + sbi_->value);
changed();
}
/**
* manually sets the used value to a given value
*/
void SpinBox::set_value(int32_t const value) {
sbi_->value = value;
if (sbi_->value > sbi_->max)
sbi_->value = sbi_->max;
else if (sbi_->value < sbi_->min)
sbi_->value = sbi_->min;
update();
}
void SpinBox::set_value_list(const std::vector<int32_t>& values) {
sbi_->values = values;
sbi_->min = 0;
sbi_->max = values.size() - 1;
update();
}
/**
* sets the interval the value may lay in and fixes the value, if outside.
*/
void SpinBox::set_interval(int32_t const min, int32_t const max) {
sbi_->max = max;
sbi_->min = min;
if (sbi_->value > max)
sbi_->value = max;
else if (sbi_->value < min)
sbi_->value = min;
update();
}
/**
* \returns the value
*/
int32_t SpinBox::get_value() const {
if (type_ == SpinBox::Type::kValueList) {
if ((sbi_->value >= 0) && (sbi_->values.size() > static_cast<size_t>(sbi_->value))) {
return sbi_->values.at(sbi_->value);
} else {
return -1;
}
} else {
return sbi_->value;
}
}
/**
* Adds a replacement text for a specific value
* overwrites an old replacement if one exists.
*/
void SpinBox::add_replacement(int32_t value, const std::string& text) {
sbi_->value_replacements[value] = text;
update();
}
const std::string SpinBox::unit_text(int32_t value) const {
switch (sbi_->unit) {
case (Units::kMinutes):
/** TRANSLATORS: A spinbox unit */
return (boost::format(ngettext("%d minute", "%d minutes", value)) % value).str();
case (Units::kPixels):
/** TRANSLATORS: A spinbox unit */
return (boost::format(ngettext("%d pixel", "%d pixels", value)) % value).str();
case (Units::kPercent):
/** TRANSLATORS: A spinbox unit */
return (boost::format(_("%i %%")) % value).str();
default:
return (boost::format("%d") % value).str();
}
}
} // namespace UI
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