//****************************************************************************************
//
//	File:		NormalPulseView.cpp
//
//	Written by:	Daniel Switkin
//
//	Copyright 1999, Be Incorporated
//
//****************************************************************************************


#include "NormalPulseView.h"
#include "Common.h"
#include "Pictures"

#include <Bitmap.h>
#include <Dragger.h>
#include <Window.h>

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include <cpu_type.h>


float
max_font_size(BFont font, const char* text, float maxSize, float maxWidth)
{
	const float steps = 0.5f;

	for (float size = maxSize; size > 4; size -= steps) {
		font.SetSize(size);
		if (font.StringWidth(text) <= maxWidth)
			return size;
	}

	return 4;
}

	
//	#pragma mark -


NormalPulseView::NormalPulseView(BRect rect)
	: PulseView(rect, "NormalPulseView"),
	fHasBrandLogo(false)
{
	rgb_color color = { 168, 168, 168, 0xff };
	SetViewColor(color);
	SetLowColor(color);

	mode1->SetLabel("Mini mode");
	mode1->SetMessage(new BMessage(PV_MINI_MODE));
	mode2->SetLabel("Deskbar mode");
	mode2->SetMessage(new BMessage(PV_DESKBAR_MODE));
	
	DetermineVendorAndProcessor();

	// Allocate progress bars and button pointers
	system_info systemInfo;
	get_system_info(&systemInfo);
	fCpuCount = systemInfo.cpu_count;
	fProgressBars = new ProgressBar *[fCpuCount];
	fCpuButtons = new CPUButton *[fCpuCount];

	// Set up the CPU activity bars and buttons
	for (int x = 0; x < fCpuCount; x++) {
		BRect r(PROGRESS_MLEFT, PROGRESS_MTOP + ITEM_OFFSET * x,
			PROGRESS_MLEFT + ProgressBar::PROGRESS_WIDTH,
			PROGRESS_MTOP + ITEM_OFFSET * x + ProgressBar::PROGRESS_HEIGHT);
		fProgressBars[x] = new ProgressBar(r, "CPU progress bar");
		AddChild(fProgressBars[x]);

		r.Set(CPUBUTTON_MLEFT, CPUBUTTON_MTOP + ITEM_OFFSET * x,
			CPUBUTTON_MLEFT + CPUBUTTON_WIDTH + 7,
			CPUBUTTON_MTOP + ITEM_OFFSET * x + CPUBUTTON_HEIGHT + 7);
		char temp[4];
		sprintf(temp, "%d", x + 1);
		fCpuButtons[x] = new CPUButton(r, "Pulse", temp, NULL);
		AddChild(fCpuButtons[x]);
	}

	if (fCpuCount == 1) {
		fProgressBars[0]->MoveBy(-3, 12);
		fCpuButtons[0]->Hide();
	}
}


NormalPulseView::~NormalPulseView()
{
	delete fCpuLogo;
	delete[] fCpuButtons;
	delete[] fProgressBars;
}


void
NormalPulseView::CalculateFontSizes()
{
	BFont font;
	GetFont(&font);

	fProcessorFontSize = max_font_size(font, fProcessor, 11.0f, 46.0f);

	if (!fHasBrandLogo)
		fVendorFontSize = max_font_size(font, fVendor, 13.0f, 46.0f);
}


void
NormalPulseView::DetermineVendorAndProcessor()
{
	system_info sys_info;
	get_system_info(&sys_info);

	// Initialize logo

	fCpuLogo = new BBitmap(BRect(0, 0, 63, 62), B_CMAP8);
	unsigned char *logo = BlankLogo;

#if __POWERPC__
	logo = PowerPCLogo;
#endif
#if __INTEL__
	
	switch (sys_info.cpu_type & B_CPU_x86_VENDOR_MASK) {
	case B_CPU_INTEL_x86:
		logo = IntelLogo;
		break;
		
	case B_CPU_AMD_x86:
		logo = AmdLogo;
		break;
	};
#endif

	fCpuLogo->SetBits(logo, fCpuLogo->BitsLength(), 0, B_CMAP8);
	fHasBrandLogo = (logo != BlankLogo);

	get_cpu_type(fVendor, sizeof(fVendor), fProcessor, sizeof(fProcessor));
}


void
NormalPulseView::Draw(BRect rect)
{
	PushState();

	// Black frame
	SetHighColor(0, 0, 0);
	BRect frame = Bounds();
	frame.right--;
	frame.bottom--;
	StrokeRect(frame);

	// Bevelled edges
	SetHighColor(255, 255, 255);
	StrokeLine(BPoint(1, 1), BPoint(frame.right - 1, 1));
	StrokeLine(BPoint(1, 1), BPoint(1, frame.bottom - 1));
	SetHighColor(80, 80, 80);
	StrokeLine(BPoint(frame.right, 1), BPoint(frame.right, frame.bottom));
	StrokeLine(BPoint(2, frame.bottom), BPoint(frame.right - 1, frame.bottom));

	// Dividing line
	SetHighColor(96, 96, 96);
	StrokeLine(BPoint(1, frame.bottom + 1), BPoint(frame.right, frame.bottom + 1));
	SetHighColor(255, 255, 255);
	StrokeLine(BPoint(1, frame.bottom + 2), BPoint(frame.right, frame.bottom + 2));
	
	// Processor picture
	DrawBitmap(fCpuLogo, BPoint(10, 10));

#if __INTEL__
	// Do nothing in the case of non-Intel CPUs - they already have a logo
	if (!fHasBrandLogo) {
		SetDrawingMode(B_OP_OVER);
		SetHighColor(240, 240, 240);
		SetFontSize(fVendorFontSize);

		float width = StringWidth(fVendor);
		MovePenTo(10 + (32 - width / 2), 30);
		DrawString(fVendor);
	}
#endif

	// Draw processor type and speed
	SetDrawingMode(B_OP_OVER);
	SetHighColor(240, 240, 240);
	
	SetFontSize(fProcessorFontSize);
	float width = StringWidth(fProcessor);
	MovePenTo(10 + (32 - width / 2), 48);
	DrawString(fProcessor);

	char buffer[64];
	int32 cpuSpeed = get_rounded_cpu_speed();
	if (cpuSpeed > 1000 && (cpuSpeed % 10) == 0)
		snprintf(buffer, sizeof(buffer), "%.2f GHz", cpuSpeed / 1000.0f);
	else
		snprintf(buffer, sizeof(buffer), "%ld MHz", cpuSpeed);
	
	// We can't assume anymore that a CPU clock speed is always static.
	// Let's compute the best font size for the CPU speed string each time...
	BFont font;
	GetFont(&font);
	SetFontSize(max_font_size(font, buffer, fProcessorFontSize, 46.0f));
	width = StringWidth(buffer);
	MovePenTo(10 + (32 - width / 2), 60);
	DrawString(buffer);

	PopState();
}


void
NormalPulseView::Pulse()
{
	// Don't recalculate and redraw if this view is hidden
	if (!IsHidden()) {
		Update();
		if (Window()->Lock()) {
			// Set the value of each CPU bar
			for (int x = 0; x < fCpuCount; x++) {
				fProgressBars[x]->Set((int32)max_c(0, cpu_times[x] * 100));
			}

			Sync();
			Window()->Unlock();
		}
	}
}


void
NormalPulseView::AttachedToWindow()
{
	SetFont(be_bold_font);
	CalculateFontSizes();

	fPreviousTime = system_time();

	BMessenger messenger(Window());
	mode1->SetTarget(messenger);
	mode2->SetTarget(messenger);
	preferences->SetTarget(messenger);
	about->SetTarget(messenger);

	system_info sys_info;
	get_system_info(&sys_info);
	if (sys_info.cpu_count >= 2) {
		for (int x = 0; x < sys_info.cpu_count; x++) {
			cpu_menu_items[x]->SetTarget(messenger);
		}
	}
}


void
NormalPulseView::UpdateColors(BMessage *message)
{
	int32 color = message->FindInt32("color");
	bool fade = message->FindBool("fade");
	system_info sys_info;
	get_system_info(&sys_info);

	for (int x = 0; x < sys_info.cpu_count; x++) {
		fProgressBars[x]->UpdateColors(color, fade);
		fCpuButtons[x]->UpdateColors(color);
	}
}