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Refactor|libcommon|Menu: Base textual slider widget on menu::CVarSlid…
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doomsday/plugins/common/src/menu/widgets/cvartextualsliderwidget.cpp
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| /** @file cvartextualsliderwidget.cpp UI widget for a textual slider. | ||
| * | ||
| * @authors Copyright © 2005-2014 Jaakko Keränen <jaakko.keranen@iki.fi> | ||
| * @authors Copyright © 2005-2014 Daniel Swanson <danij@dengine.net> | ||
| * | ||
| * @par License | ||
| * GPL: http://www.gnu.org/licenses/gpl.html | ||
| * | ||
| * <small>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 St, Fifth Floor, Boston, MA | ||
| * 02110-1301 USA</small> | ||
| */ | ||
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| #include "common.h" | ||
| #include "menu/widgets/cvartextualsliderwidget.h" | ||
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| #include "hu_menu.h" // Hu_MenuMergeEffectWithDrawTextFlags | ||
| #include "menu/page.h" // mnRendState | ||
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| using namespace de; | ||
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| namespace common { | ||
| namespace menu { | ||
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| DENG2_PIMPL(CVarTextualSliderWidget) | ||
| { | ||
| //String templateString; | ||
| String onethSuffix; | ||
| String nthSuffix; | ||
| String emptyText; | ||
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| Instance(Public *i) : Base(i) {} | ||
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| inline bool valueIsOne(float value) | ||
| { | ||
| if(self.floatMode()) | ||
| { | ||
| return INRANGE_OF(1, value, .0001f); | ||
| } | ||
| return (value > 0 && 1 == int(value + .5f)); | ||
| } | ||
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| String chooseSuffix(float value) | ||
| { | ||
| if(!onethSuffix.isEmpty() && valueIsOne(value)) | ||
| { | ||
| return onethSuffix; | ||
| } | ||
| if(!nthSuffix.isEmpty()) | ||
| { | ||
| return nthSuffix; | ||
| } | ||
| return ""; | ||
| } | ||
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| String composeTextualValue(float value, int precision = 0) | ||
| { | ||
| if(self.floatMode() && !valueIsOne(value)) | ||
| { | ||
| return String::number(value, 'f', de::max(0, precision)); | ||
| } | ||
| else | ||
| { | ||
| return String::number(int(value)); | ||
| } | ||
| } | ||
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| String valueAsText(float emptyValue = 0, int precision = 0) | ||
| { | ||
| float const value = de::clamp(self.min(), self.value(), self.max()); /// @todo clamp necessary? | ||
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| // Is the empty-value-string in use? | ||
| if(!emptyText.isEmpty() && INRANGE_OF(value, emptyValue, .0001f)) | ||
| { | ||
| return emptyText; | ||
| } | ||
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| String const suffix = chooseSuffix(value); | ||
| String const valueAsText = composeTextualValue(value, precision); | ||
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| #if 0 | ||
| // Are we substituting the textual value into a template? | ||
| if(!templateString.isEmpty()) | ||
| { | ||
| // Reserve a conservative amount of storage, we assume the caller | ||
| // knows best and take the value given as the output buffer size. | ||
| AutoStr *compStr = AutoStr_NewStd(); | ||
| Str_Reserve(compStr, bufSize); | ||
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| // Composite the final string. | ||
| char const *c; | ||
| char *beginSubstring = templateString; | ||
| for(c = beginSubstring; *c; c++) | ||
| { | ||
| if(c[0] == '%' && c[1] == '1') | ||
| { | ||
| Str_PartAppend(compStr, beginSubstring, 0, c - beginSubstring); | ||
| Str_Appendf(compStr, "%s%s", textualValue, suffix); | ||
| // Next substring will begin from here. | ||
| beginSubstring = c + 2; | ||
| c += 1; | ||
| } | ||
| } | ||
| // Anything remaining? | ||
| if(beginSubstring != c) | ||
| Str_Append(compStr, beginSubstring); | ||
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| return String(Str_Text(compStr)); | ||
| } | ||
| else | ||
| #endif | ||
| { | ||
| return valueAsText + suffix; | ||
| } | ||
| } | ||
| }; | ||
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| CVarTextualSliderWidget::CVarTextualSliderWidget(char const *cvarPath, float min, float max, | ||
| float step, bool floatMode) | ||
| : CVarSliderWidget(cvarPath, min, max, step, floatMode) | ||
| , d(new Instance(this)) | ||
| { | ||
| Widget::_pageColorIdx = MENU_COLOR3; | ||
| } | ||
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| CVarTextualSliderWidget::~CVarTextualSliderWidget() | ||
| {} | ||
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| void CVarTextualSliderWidget::draw(Point2Raw const *origin) | ||
| { | ||
| DENG2_ASSERT(origin != 0); | ||
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| String const valueAsText = d->valueAsText(); | ||
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| DGL_MatrixMode(DGL_MODELVIEW); | ||
| DGL_Translatef(origin->x, origin->y, 0); | ||
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| DGL_Enable(DGL_TEXTURE_2D); | ||
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| FR_SetFont(mnRendState->textFonts[_pageFontIdx]); | ||
| FR_SetColorAndAlphav(mnRendState->textColors[_pageColorIdx]); | ||
| FR_DrawTextXY3(valueAsText.toUtf8().constData(), 0, 0, ALIGN_TOPLEFT, Hu_MenuMergeEffectWithDrawTextFlags(0)); | ||
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| DGL_Disable(DGL_TEXTURE_2D); | ||
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| DGL_MatrixMode(DGL_MODELVIEW); | ||
| DGL_Translatef(-origin->x, -origin->y, 0); | ||
| } | ||
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| void CVarTextualSliderWidget::updateGeometry(Page *page) | ||
| { | ||
| DENG2_ASSERT(page != 0); | ||
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| String const valueAsText = d->valueAsText(); | ||
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| FR_SetFont(page->predefinedFont(mn_page_fontid_t(_pageFontIdx))); | ||
| Size2Raw size; FR_TextSize(&size, valueAsText.toUtf8().constData()); | ||
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| Rect_SetWidthHeight(_geometry, size.width, size.height); | ||
| } | ||
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| void CVarTextualSliderWidget::setEmptyText(String const &newEmptyText) | ||
| { | ||
| d->emptyText = newEmptyText; | ||
| } | ||
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| String CVarTextualSliderWidget::emptyText() const | ||
| { | ||
| return d->emptyText; | ||
| } | ||
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| void CVarTextualSliderWidget::setOnethSuffix(String const &newOnethSuffix) | ||
| { | ||
| d->onethSuffix = newOnethSuffix; | ||
| } | ||
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| String CVarTextualSliderWidget::onethSuffix() const | ||
| { | ||
| return d->onethSuffix; | ||
| } | ||
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| void CVarTextualSliderWidget::setNthSuffix(String const &newNthSuffix) | ||
| { | ||
| d->nthSuffix = newNthSuffix; | ||
| } | ||
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| String CVarTextualSliderWidget::nthSuffix() const | ||
| { | ||
| return d->nthSuffix; | ||
| } | ||
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| } // namespace menu | ||
| } // namespace common |
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