Subversion Repositories Kolibri OS

#ifndef INCLUDE_DRAW_BUF_H

#define INCLUDE_DRAW_BUF_H

#print "[include ]\n"

#ifndef INCLUDE_KOLIBRI_H

#include "../lib/kolibri.h"

#endif

dword buf_data=0;

struct DrawBufer {

	dword bufx, bufy, bufw, bufh;

	dword fill_color;

	bool Init();

	void Show();

	void Fill();

	void DrawBar();

	void WriteText();

	void PutPixel();

	void AlignCenter();

	void AlignRight();

	void IncreaseBufSize();

};

char draw_buf_not_enaught_ram[] =

"'DrawBufer requested %i MB more memory than the system has.

Application could be unstable.' -E";

bool DrawBufer::Init(dword i_bufx, i_bufy, i_bufw, i_bufh)

{

	bufx = i_bufx;

	bufy = i_bufy;

	bufw = i_bufw;

	bufh = i_bufh;

	if (buf_data) buf_data = free(buf_data);

	IncreaseBufSize();

	if (!buf_data) return false;

	ESDWORD[buf_data] = bufw;

	ESDWORD[buf_data+4] = bufh;

	return true;

}

void DrawBufer::Fill(dword start_pointer, i_fill_color)

{

	dword i;

	dword max_i = bufw * bufh * 4 + buf_data + 8;

	fill_color = i_fill_color;

	MEMSETD(buf_data+start_pointer+8, max_i-buf_data-start_pointer-8/4, fill_color);

}

void DrawBufer::DrawBar(dword x, y, w, h, color)

{

	dword i, j;

	if (y + h >= bufh) IncreaseBufSize();

	for (j=0; j

		for (i = y+j*bufw+x<<2+8+buf_data; i

			ESDWORD[i] = color;

		}

	}

}

void DrawBufer::WriteText(dword x, y, byte fontType, dword color, str_offset, strlen)

{

	#define BUGFIX_32000 32000

	dword ydiv=0;

	dword reserve_data_1, reserve_data_2;

	dword new_buf_offset;

	if (y + 30 >= bufh) IncreaseBufSize();

	if (y < BUGFIX_32000) {

		ESI = strlen;

		WriteBufText(x, y, fontType, color, str_offset, buf_data);

	}

	else {

		ydiv = y / BUGFIX_32000 * BUGFIX_32000;

		y -= ydiv;

		new_buf_offset = ydiv * bufw * 4 + buf_data;

		reserve_data_1 = ESDWORD[new_buf_offset];

		reserve_data_2 = ESDWORD[new_buf_offset+4];

		ESDWORD[new_buf_offset] = bufw;

		ESDWORD[new_buf_offset+4] = bufh - y;

		ESI = strlen;

		WriteBufText(x, y, fontType, color, str_offset, new_buf_offset);

		ESDWORD[new_buf_offset] = reserve_data_1;

		ESDWORD[new_buf_offset+4] = reserve_data_2;

	}

}

void DrawBufer::PutPixel(dword x, y, color)

{

	dword pos = y*bufw+x*4+8+buf_data;

	ESDWORD[pos] = color;

}

void DrawBufer::AlignRight(dword x,y,w,h, content_width)

{

	dword i, j, l;

	dword content_left = w - content_width / 2;

	for (j=0; j

	{

		for (i=j*w+w-x*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)

		{

			ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];

		}

	}

}

void DrawBufer::AlignCenter(dword x,y,w,h, content_width)

{

	dword i, j, l;

	dword content_left = w - content_width / 2;

	for (j=0; j

	{

		for (i=j*w+content_width+content_left*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)

		{

			ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];

		}

	}

}

/*

void DrawBufer::Zoom2x(int zoom)

{

	int i, s;

	dword point_x, max_i, zline_w, s_inc;

	point_x = 0;

	max_i = bufw * bufh * 4 + buf_data+8;

	s_inc = zoom * 4;

	zline_w = zbufw * 4;

	for (i=buf_data+8, s=zbuf_data+8; i

		ESDWORD[s] = ESDWORD[i];

		ESDWORD[s+4] = ESDWORD[i];

		ESDWORD[s+zline_w] = ESDWORD[i];

		ESDWORD[s+zline_w+4] = ESDWORD[i];

		if (zoom==3)

		{

			ESDWORD[s+8] = ESDWORD[i];

			ESDWORD[zline_w+s+8] = ESDWORD[i];

			ESDWORD[zline_w*2+s] = ESDWORD[i];

			ESDWORD[zline_w*2+s+4] = ESDWORD[i];

			ESDWORD[zline_w*2+s+8] = ESDWORD[i];

		}

		point_x++;

		if (point_x >= bufw)

		{

			s += zoom - 1 * zline_w;

			point_x = 0;

		}

	}

}

*/

void DrawBufer::Show()

{

	PutPaletteImage(buf_data+8, bufw, bufh, bufx, bufy, 32, 0);

}

void DrawBufer::IncreaseBufSize()

{

	static dword alloc_counter;

	static dword bufh_initial;

	dword alloc_size;

	dword free_ram_size;

	char error_str[256];

	if (!buf_data) {

		alloc_counter = 1;

		bufh_initial = bufh;

		alloc_size = bufw * bufh * 4 + 8;

		buf_data = malloc(alloc_size);

	}

	else {

		alloc_counter++;

		bufh = bufh_initial * alloc_counter;

		alloc_size = bufw * bufh * 4 + 8;

		buf_data = realloc(buf_data, alloc_size);

		Fill(alloc_counter - 1 * bufw * bufh_initial * 4 + 8, fill_color);

	}

	free_ram_size = GetFreeRAM() * 1024;

	if (alloc_size > free_ram_size) {

		sprintf(#error_str, #draw_buf_not_enaught_ram, alloc_size - free_ram_size/1048576);

		notify(#error_str);

	}

}

#endif