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Fix: Clipping issues with volume sliders in Music GUI 

Tested with various languages and GUI font sizes, should look good everywhere.

Also clamps near-end values to minimum and maximum so 0 and 127 are possible to achieve even on small GUI sizes (like the default.)
This commit is contained in:
Niels Martin Hansen 2018-03-19 21:25:08 +01:00 committed by frosch
parent bb809e35ce
commit 430e20f7e4
1 changed files with 10 additions and 8 deletions
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18
src/music_gui.cpp
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@ -18,6 +18,7 @@
#include "window_func.h"
#include "sound_func.h"
#include "gfx_func.h"
#include "zoom_func.h"
#include "core/random_func.hpp"
#include "error.h"
#include "core/geometry_func.hpp"
@ -618,15 +619,13 @@ struct MusicWindow : public Window {
}
case WID_M_MUSIC_VOL: case WID_M_EFFECT_VOL: {
DrawFrameRect(r.left, r.top + 2, r.right, r.bottom - 2, COLOUR_GREY, FR_LOWERED);
int sw = ScaleGUITrad(slider_width);
int hsw = sw / 2;
DrawFrameRect(r.left + hsw, r.top + 2, r.right - hsw, r.bottom - 2, COLOUR_GREY, FR_LOWERED);
byte volume = (widget == WID_M_MUSIC_VOL) ? _settings_client.music.music_vol : _settings_client.music.effect_vol;
int x = (volume * (r.right - r.left) / 127);
if (_current_text_dir == TD_RTL) {
x = r.right - x;
} else {
x += r.left;
}
DrawFrameRect(x, r.top, x + slider_width, r.bottom, COLOUR_GREY, FR_NONE);
if (_current_text_dir == TD_RTL) volume = 127 - volume;
int x = r.left + (volume * (r.right - r.left - sw) / 127);
DrawFrameRect(x, r.top, x + sw, r.bottom, COLOUR_GREY, FR_NONE);
break;
}
}
@ -679,6 +678,9 @@ struct MusicWindow : public Window {
byte new_vol = x * 127 / this->GetWidget<NWidgetBase>(widget)->current_x;
if (_current_text_dir == TD_RTL) new_vol = 127 - new_vol;
/* Clamp to make sure min and max are properly settable */
if (new_vol > 124) new_vol = 127;
if (new_vol < 3) new_vol = 0;
if (new_vol != *vol) {
*vol = new_vol;
if (widget == WID_M_MUSIC_VOL) MusicVolumeChanged(new_vol);