From ded6dd1c8f7cbe2991e90f69f95730b39eaa95cf Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Tue, 24 May 2016 19:52:08 +0800
Subject: Add seeking with arrow buttons in visualization.

---
 ChangeLog                             |  5 ++++-
 doc/visualization.html                | 18 +++++++++---------
 include/qmpcorepublic.hpp             |  2 ++
 qmidiplayer-desktop/qmpmainwindow.cpp | 26 +++++++++++++++++++++++++-
 qmidiplayer-desktop/qmpmainwindow.hpp |  2 ++
 qmidiplayer-desktop/qmpplugin.cpp     |  4 ++++
 qmidiplayer.pro                       |  7 ++++---
 visualization/qmpvisualization.cpp    |  4 ++++
 8 files changed, 54 insertions(+), 14 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 6528635..62d2389 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2016-05-24 0.8.1 alpha
+Add seeking with arrow buttons in visualization.
+
 2016-05-23 0.8.1 alpha
 Add horizontal visualization mode.
 Add build date in version page.
@@ -313,4 +316,4 @@ Implemented the play list.
 Implemented the stop button, fixed several bugs.
 
 2015-12-25 primitive version
-Implemented the GUI based on the previous CLI version.
\ No newline at end of file
+Implemented the GUI based on the previous CLI version.
diff --git a/doc/visualization.html b/doc/visualization.html
index b35d3de..d11f3fa 100644
--- a/doc/visualization.html
+++ b/doc/visualization.html
@@ -32,15 +32,15 @@
 		<h3>Controls</h3>
 <pre>
    forward
-      |                          ↱Hold left mouse button and drag:
-   up |  down                   ┌──┬──┐     Adjust viewport.
-   ↓  ↓  ↓                      │  │  │
-   Q  W  E  R←reset viewport    ├──┴──┤
-   A  S  D                      │     │
-   ↑  ↑  ↑                      │     │
-left  |  right                  │     │
-      |                         └─────┘
-   backward
+      |                              ↱Hold left mouse button and drag:
+   up |  down                       ┌──┬──┐     Adjust viewport.
+   ↓  ↓  ↓                          │  │  │
+   Q  W  E  R←reset viewport        ├──┴──┤
+   A  S  D                          │     │
+   ↑  ↑  ↑                          │     │
+left  |  right        ←  →          │     │
+      |          Seek left/right    └─────┘
+   backward   (Hold shift to seek 5% instead of 1%)
 </pre>
 		<h3>Options</h3>
 		<ul>
diff --git a/include/qmpcorepublic.hpp b/include/qmpcorepublic.hpp
index 17a3910..13afe3e 100644
--- a/include/qmpcorepublic.hpp
+++ b/include/qmpcorepublic.hpp
@@ -67,6 +67,8 @@ class qmpPluginAPI
 		virtual uint32_t getCurrentPolyphone();
 		virtual uint32_t getMaxPolyphone();
 		virtual uint32_t getCurrentTimeStamp();
+		virtual uint32_t getCurrentPlaybackPercentage();
+		virtual void playerSeek(uint32_t percentage);
 		virtual double getPitchBend(int ch);
 		virtual bool getChannelMask(int ch);
 		virtual std::string getTitle();
diff --git a/qmidiplayer-desktop/qmpmainwindow.cpp b/qmidiplayer-desktop/qmpmainwindow.cpp
index de15412..73724ec 100644
--- a/qmidiplayer-desktop/qmpmainwindow.cpp
+++ b/qmidiplayer-desktop/qmpmainwindow.cpp
@@ -425,7 +425,7 @@ void qmpMainWindow::on_hsTimer_sliderReleased()
 	}
 	else
 	{
-		if(stopped){ui->hsTimer->setValue(0);}return;
+		if(stopped){ui->hsTimer->setValue(0);return;}
 		player->setTCeptr(player->getStamp(ui->hsTimer->value()),ui->hsTimer->value());
 		offset=ui->hsTimer->value()/100.*player->getFtime();
 		char ts[100];
@@ -434,6 +434,30 @@ void qmpMainWindow::on_hsTimer_sliderReleased()
 	}
 }
 
+uint32_t qmpMainWindow::getPlaybackPercentage(){return ui->hsTimer->value();}
+void qmpMainWindow::playerSeek(uint32_t percentage)
+{
+	if(percentage>100)percentage=100;
+	if(percentage<0)percentage=0;
+	if(playing)
+	{
+		if(percentage==100){on_pbNext_clicked();return;}
+		player->setTCeptr(player->getStamp(percentage),percentage);
+		player->playerPanic();ui->hsTimer->setValue(percentage);
+		offset=percentage/100.*player->getFtime();
+		st=std::chrono::steady_clock::now();
+	}
+	else
+	{
+		if(stopped){ui->hsTimer->setValue(0);return;}
+		player->setTCeptr(player->getStamp(percentage),percentage);
+		offset=percentage/100.*player->getFtime();ui->hsTimer->setValue(percentage);
+		char ts[100];
+		sprintf(ts,"%02d:%02d",(int)(offset)/60,(int)(offset)%60);
+		ui->lbCurTime->setText(ts);
+	}
+}
+
 void qmpMainWindow::on_vsMasterVol_valueChanged()
 {
 	if(!stopped)player->setGain(ui->vsMasterVol->value()/250.);
diff --git a/qmidiplayer-desktop/qmpmainwindow.hpp b/qmidiplayer-desktop/qmpmainwindow.hpp
index 9fc5d14..ef07798 100644
--- a/qmidiplayer-desktop/qmpmainwindow.hpp
+++ b/qmidiplayer-desktop/qmpmainwindow.hpp
@@ -64,6 +64,8 @@ class qmpMainWindow:public QMainWindow
 		QString getFileName();
 		std::string getTitle();
 		std::wstring getWTitle();
+		uint32_t getPlaybackPercentage();
+		void playerSeek(uint32_t percentage);
 		int pharseArgs();
 		int registerVisualizationIntf(qmpVisualizationIntf* intf);
 		void unregisterVisualizationIntf(int handle);
diff --git a/qmidiplayer-desktop/qmpplugin.cpp b/qmidiplayer-desktop/qmpplugin.cpp
index 565bdf1..7d6f36e 100644
--- a/qmidiplayer-desktop/qmpplugin.cpp
+++ b/qmidiplayer-desktop/qmpplugin.cpp
@@ -128,6 +128,10 @@ uint32_t qmpPluginAPI::getMaxPolyphone()
 {return qmw&&qmw->getPlayer()?qmw->getPlayer()->getMaxPolyphone():0;}
 uint32_t qmpPluginAPI::getCurrentTimeStamp()
 {return qmw&&qmw->getPlayer()?qmw->getPlayer()->getTick():0;}
+uint32_t qmpPluginAPI::getCurrentPlaybackPercentage()
+{return qmw?qmw->getPlaybackPercentage():0;}
+void qmpPluginAPI::playerSeek(uint32_t percentage)
+{if(qmw)qmw->playerSeek(percentage);}
 double qmpPluginAPI::getPitchBend(int ch)
 {return qmw&&qmw->getPlayer()?qmw->getPlayer()->getPitchBend(ch):0;}
 bool qmpPluginAPI::getChannelMask(int ch)
diff --git a/qmidiplayer.pro b/qmidiplayer.pro
index 3466c67..62515f5 100644
--- a/qmidiplayer.pro
+++ b/qmidiplayer.pro
@@ -4,12 +4,13 @@ TEMPLATE = subdirs
 SUBDIRS = \
 	qmidiplayer-desktop \
 	qmidiplayer-lite \
-	visualization
+	sample-plugin
 }
 android {
 SUBDIRS = \
 	qmidiplayer-lite
 }
 
-SUBDIRS += \
-    sample-plugin
+!win32 {
+SUBDIRS += visualization\
+}
diff --git a/visualization/qmpvisualization.cpp b/visualization/qmpvisualization.cpp
index 4042a24..e9d1977 100644
--- a/visualization/qmpvisualization.cpp
+++ b/visualization/qmpvisualization.cpp
@@ -247,6 +247,10 @@ bool qmpVisualization::update()
 	if(sm->smGetKeyState(SMK_O))rot[2]-=1;
 	//printf("pos: %f %f %f\n",pos[0],pos[1],pos[2]);
 	//printf("rot: %f %f %f\n",rot[0],rot[1],rot[2]);
+	if(sm->smGetKeyState(SMK_RIGHT)==SMKST_HIT)
+		api->playerSeek(api->getCurrentPlaybackPercentage()+(sm->smGetKeyState(SMK_SHIFT)?5:1));
+	if(sm->smGetKeyState(SMK_LEFT)==SMKST_HIT)
+		api->playerSeek(api->getCurrentPlaybackPercentage()-(sm->smGetKeyState(SMK_SHIFT)?5:1));
 	double lpt=(double)notestretch/api->getDivision()/10.*(horizontal?0.25:1);
 	memset(notestatus,0,sizeof(notestatus));
 	for(uint32_t i=elb;i<pool.size();++i)
-- 
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