haiku.git

/*
	
	ChartView.cpp
	
	by Pierre Raynaud-Richard.
	
*/

/*
	Copyright 1999, Be Incorporated.   All Rights Reserved.
	This file may be used under the terms of the Be Sample Code License.
*/

#include "ChartView.h"
#include "ChartWindow.h"


ChartView::ChartView(BRect rect) 
	:
	BView(rect, "", B_FOLLOW_ALL, B_WILL_DRAW) 
{
}


/* The drawing function just draw the offscreen if it exists and is used */
void
ChartView::Draw(BRect rect)
{
	ChartWindow *window = dynamic_cast<ChartWindow *>(Window());
	if (window == NULL)
		return;

	if ((window->fOffscreen != 0) && (window->fCurrentSettings.display == DISPLAY_BITMAP))
		DrawBitmap(window->fOffscreen, rect, rect);
}


/* Send a message to the window if the user click anywhere in the animation
   view. This is used to go out of fullscreen demo mode. */
void
ChartView::MouseDown(BPoint where)
{
	Window()->PostMessage(BACK_DEMO_MSG);
}


/* Another straightforward constructor. The default target setting for the
   frames/s vue-meter is 5 (as 5 * 12 = 60 frames/s) */
InstantView::InstantView(BRect rect) 
	:
	BView(rect, "", B_FOLLOW_LEFT | B_FOLLOW_TOP, B_WILL_DRAW)
{
	step = 5;
}


/* Draw the colored bars of the vue-meter depending the current framerate
   of the window animation. The color coding depends of the target framerate
   as encoded by step. */
void
InstantView::Draw(BRect rect)
{
	ChartWindow *window = dynamic_cast<ChartWindow *>(Window());
	if (window == NULL)
		return;

	for (int32 i = 0; i < window->fInstantLoadLevel; i++) {
		if (i < step)
			SetHighColor(255, 90, 90);
		else if ((i / step) & 1)
			SetHighColor(90, 255, 90);
		else
			SetHighColor(40, 200, 40);
		FillRect(BRect(3 + i * 4, 2, 5 + i * 4, 19));
	}
	Flush();
}


ChartColorControl::ChartColorControl(BPoint start, BMessage *message)
	:
	BColorControl(start, B_CELLS_32x8, 8.0, "", message)
{
}


/* We overwrite SetValue to send a message to the target everytime
   the setting change and not only at the end. */
void
ChartColorControl::SetValue(int32 colorValue)
{
	BLooper *looper;

	BColorControl::SetValue(colorValue);
	Target(&looper);
	if (looper) {
		BMessage msg(*Message());
		msg.AddInt32("be:value", colorValue);
		looper->PostMessage(&msg);
	}
}