Subversion Repositories Kolibri OS

enum {

	TOOL_NONE = -1,

	TOOL_PENCIL,

	TOOL_PIPETTE,

	TOOL_FILL,

	TOOL_LINE,

	TOOL_RECT,

	TOOL_SELECT

};

struct Tool {

	int id;

	void (*activate)();

	void (*deactivate)();

	void (*onMouseEvent)(int x, int y, int lkm, int pkm);

	void (*onKeyEvent)(dword keycode);

	void (*onCanvasDraw)();

};

int currentTool = -1;

Tool tools[6];

void resetCurrentTool() {

	if ((currentTool != TOOL_NONE) && (tools[currentTool].deactivate != 0)) {

		tools[currentTool].deactivate();

	}

	currentTool = TOOL_NONE;

}

void setCurrentTool(int index) {

	resetCurrentTool();

	currentTool = index;

	if ((index != TOOL_NONE) && (tools[index].activate != 0))

		tools[index].activate();

	DrawLeftPanel();

	DrawCanvas();

}

//===================================================//

//                                                   //

//                    FUNTIONS                       //

//                                                   //

//===================================================//

void FillTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {

	if (canvas.hovered()) && (currentTool==TOOL_FILL) && (mouse.up)

	{

		image.fill(mouseY-canvas.y/zoom.value,

				mouseX-canvas.x/zoom.value, tool_color);

		actionsHistory.saveCurrentState();

		DrawCanvas();

	}

}

void PipetteTool_activate() {

	SetEventMask(EVM_REDRAW+EVM_KEY+EVM_BUTTON+EVM_MOUSE);

}

void PipetteTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {

	tool_color = GetPixelUnderMouse();

	DrawBar(Form.cwidth-30, 5, 20, 20, tool_color);

	if (mouse.down) {

		SetEventMask(EVM_REDRAW+EVM_KEY+EVM_BUTTON+EVM_MOUSE+EVM_MOUSE_FILTER);

		if (mouse.key&MOUSE_LEFT) EventSetActiveColor(1, tool_color);

		if (mouse.key&MOUSE_RIGHT) EventSetActiveColor(2, tool_color);

		setCurrentTool(TOOL_PENCIL);

	}

}

bool PencilTool_Drawing = false;

void PencilTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {

	if (canvas.hovered())

	{

		if ((PencilTool_Drawing == true) && (!mouse.key)) {

			actionsHistory.saveCurrentState();

			PencilTool_Drawing = false;

		}

		if (mouse.key) {

			image.set_pixel(mouseY-canvas.y/zoom.value,

				mouseX-canvas.x/zoom.value, tool_color);

			PencilTool_Drawing = true;

		}

		DrawCanvas();

	}

}

void PencilTool_reset() {

	PencilTool_Drawing = false;

}

// Line tool

struct SimpleFigureTool_State {

	int startX, startY;

	int lastTempPosX, lastTempPosY;

};

enum {

	TOOL_LINE_STATE,

	TOOL_RECT_STATE

};

dword currentFigToolState = -1;

SimpleFigureTool_State figTool_States[2];

void SimpleFigureTool_Reset() {

	if (currentTool == TOOL_LINE)

		currentFigToolState = TOOL_LINE_STATE;

	else if (currentTool == TOOL_RECT)

		currentFigToolState = TOOL_RECT_STATE;

	figTool_States[currentFigToolState].startX = -1;

	figTool_States[currentFigToolState].startY = -1;

	figTool_States[currentFigToolState].lastTempPosX = -1;

	figTool_States[currentFigToolState].lastTempPosY = -1;

}

int mouseX_last;

int mouseY_last;

bool first_click_in_canvas = false;

void SimpleFigureTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {

	if (mouse.down) && (canvas.hovered()) first_click_in_canvas = true;

	if (first_click_in_canvas)

	{

		if (mouseX>canvas.x+canvas.w-zoom.value) mouseX = canvas.x+canvas.w-zoom.value;

		if (mouseY>canvas.y+canvas.h-zoom.value) mouseY = canvas.y+canvas.h-zoom.value;

		if (mouseX

		if (mouseY

		if (mouse.key) {

			if ((figTool_States[currentFigToolState].startX < 0)

			|| (figTool_States[currentFigToolState].startY < 0)) {

				figTool_States[currentFigToolState].startX = mouseX;

				figTool_States[currentFigToolState].startY = mouseY;

			}

			else {

				if ((calc(mouseX - canvas.x/zoom.value) != figTool_States[currentFigToolState].lastTempPosX)

					|| (calc(mouseY - canvas.y/zoom.value) != figTool_States[currentFigToolState].lastTempPosY))

				{

					DrawCanvas();

				}

			}

			mouseX_last = mouseX;

			mouseY_last = mouseY;

		}

		if (mouse.up) {

			if ((figTool_States[currentFigToolState].startX >= 0)

			&& (figTool_States[currentFigToolState].startY >= 0)) {

				// Draw line from start position to current position

				if (currentTool == TOOL_LINE) {

					DrawLine(figTool_States[currentFigToolState].startX - canvas.x/zoom.value,

						figTool_States[currentFigToolState].startY - canvas.y/zoom.value,

						mouseX - canvas.x/zoom.value,

						mouseY - canvas.y/zoom.value,

						tool_color,

						1);

				}

				else if (currentTool == TOOL_RECT) {

					DrawRectangleInCanvas(figTool_States[currentFigToolState].startX - canvas.x/zoom.value,

						figTool_States[currentFigToolState].startY - canvas.y/zoom.value,

						mouseX - canvas.x/zoom.value,

						mouseY - canvas.y/zoom.value, tool_color, 1);

				}

				DrawCanvas();

				actionsHistory.saveCurrentState();

				// Reset start position

				figTool_States[currentFigToolState].startX = -1;

				figTool_States[currentFigToolState].startY = -1;

				first_click_in_canvas = false;

			}

		}

	}

}

void SimpleFigureTool_onCanvasDraw() {

	if ((figTool_States[currentFigToolState].startX >= 0)

	&& (figTool_States[currentFigToolState].startY >= 0) && (mouse.key)) {

		if (currentTool == TOOL_LINE) {

			DrawLine(figTool_States[currentFigToolState].startX - canvas.x/zoom.value,

				figTool_States[currentFigToolState].startY - canvas.y/zoom.value,

				mouseX_last - canvas.x/zoom.value,

				mouseY_last - canvas.y/zoom.value,

				tool_color,

				2);

		}

		else if (currentTool == TOOL_RECT) {

			DrawRectangleInCanvas(figTool_States[currentFigToolState].startX - canvas.x/zoom.value,

				figTool_States[currentFigToolState].startY - canvas.y/zoom.value,

				mouseX_last - canvas.x/zoom.value,

				mouseY_last - canvas.y/zoom.value,

				tool_color,

				2);

		}

		figTool_States[currentFigToolState].lastTempPosX = mouseX_last - canvas.x/zoom.value;

		figTool_States[currentFigToolState].lastTempPosY = mouseY_last - canvas.y/zoom.value;

	}

}

// Selection

int selection_start_x = -1;

int selection_start_y = -1;

int selection_end_x = -1;

int selection_end_y = -1;

bool selection_active = false;

dword SelectionTool_buffer = 0;

dword SelectionTool_buffer_r = 0;

dword SelectionTool_buffer_c = 0;

bool selection_moving_started = false;

int selection_pivot_x = -1;

int selection_pivot_y = -1;

void SelectTool_normalizeSelection() {

	int t;

	// Restructuring of the selection coordinates

	if (selection_end_x < selection_start_x) {

		t = selection_start_x;

		selection_start_x = selection_end_x;

		selection_end_x = t;

	}

	if (selection_end_y < selection_start_y) {

		t = selection_end_y;

		selection_end_y = selection_start_y;

		selection_start_y = t;

	}

}

void reset_selection_moving() {

	if (selection_moving_started) {

		SelectTool_drawBuffer(selection_start_x, selection_start_y, 1);

		selection_pivot_x = -1;

		selection_pivot_y = -1;

		selection_moving_started = false;

		actionsHistory.saveCurrentState();

		DrawCanvas();

	}

}

bool is_selection_moving() {

	return selection_moving_started;

}

void reset_selection() {

	reset_selection_moving();

	selection_start_x = -1;

	selection_start_y = -1;

	selection_end_x = -1;

	selection_end_y = -1;

}

void SelectTool_activate() {

	reset_selection();

	selection_active = false;

}

void SelectTool_deactivate() {

	reset_selection_moving();

}

bool SelectTool_pointInSelection(int x, int y) {

	if (x >= selection_start_x) && (x <= selection_end_x) && (y >= selection_start_y) && (y <= selection_end_y)

		return true;

	else

		return false;

}

void SelectTool_copyToBuffer() {

	dword offset, r, c;

		if (SelectionTool_buffer != 0)

			free(SelectionTool_buffer);

		SelectionTool_buffer_r = selection_end_y - selection_start_y + 1;

		SelectionTool_buffer_c = selection_end_x - selection_start_x + 1;

		SelectionTool_buffer = malloc(SelectionTool_buffer_r * SelectionTool_buffer_c * 4);

		for (r = selection_start_y; r <= selection_end_y; r++) {

			for (c = selection_start_x; c <= selection_end_x; c++) {

				offset = calc(SelectionTool_buffer_c * calc(r - selection_start_y) + calc(c - selection_start_x)) * 4;

				ESDWORD[SelectionTool_buffer + offset] = image.get_pixel(r, c);

			}

		}

}

void SelectTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {

	int click_x, click_y, dx, dy, m_x, m_y, r, c, color;

	dword pixel;

	m_x = TO_CANVAS_X(mouseX);

	m_y = TO_CANVAS_Y(mouseY);

	if (mouse.down) && (canvas.hovered()) && (!selection_active) {

		if (selection_start_x != -1) && (SelectTool_pointInSelection(m_x, m_y)) {

			if (selection_pivot_x == -1) {

				selection_pivot_x = m_x;

				selection_pivot_y = m_y;

				GetKeys();

				if (!selection_moving_started) && ( !(key_modifier&KEY_LSHIFT) ) {

					for (r = selection_start_y; r <= selection_end_y; r++)

						for (c = selection_start_x; c <= selection_end_x; c++) {

							image.set_pixel(r, c, color2);

						}

				}

				selection_moving_started = true;

			}

		}

		else {

			reset_selection();

			selection_active = true;

		}

	}

	if (selection_pivot_x != -1) {

		dx = m_x - selection_pivot_x;

		dy = m_y - selection_pivot_y;

		if (selection_start_x + dx < 0)

			dx = selection_start_x;

		if (selection_end_x + dx >= image.columns)

			dx = image.columns-1 - selection_end_x;

		if (selection_start_y + dy < 0)

			dy = selection_start_y;

		if (selection_end_y + dy >= image.rows)

			dy = image.rows-1 - selection_end_y;

		selection_start_x += dx;

		selection_end_x += dx;

		selection_start_y += dy;

		selection_end_y += dy;

		selection_pivot_x += dx;

		selection_pivot_y += dy;

		DrawCanvas();

	}

	if (selection_active)

	{

		if (mouseX>canvas.x+canvas.w-zoom.value) mouseX = canvas.x+canvas.w-zoom.value;

		if (mouseY>canvas.y+canvas.h-zoom.value) mouseY = canvas.y+canvas.h-zoom.value;

		if (mouseX

		if (mouseY

		if (mouse.key) {

			selection_end_x = TO_CANVAS_X(mouseX);

			selection_end_y = TO_CANVAS_Y(mouseY);

			if ((selection_start_x < 0) || (selection_start_y < 0)) {

				selection_start_x = TO_CANVAS_X(mouseX);

				selection_start_y = TO_CANVAS_Y(mouseY);

			}

			else {

				DrawCanvas();

				/**if ((calc(TO_CANVAS_X(mouseX)) != selection_end_x)

					|| (calc(TO_CANVAS_Y(mouseY)) != selection_end_y))

				{

					DrawCanvas();

				}*/

			}

		}

		if (mouse.up) {

			selection_active = false;

			SelectTool_normalizeSelection();

			SelectTool_copyToBuffer();

		}

	}

	if (mouse.up) {

		if (selection_pivot_x != -1) {

			selection_pivot_x = -1;

			selection_pivot_y = -1;

		}

	}

}

void SelectTool_onCanvasDraw() {

	if (selection_moving_started)

		SelectTool_drawBuffer(selection_start_x, selection_start_y, 2);

	if ((selection_start_x >= 0) && (selection_start_y >= 0) && (selection_end_x >= 0) && (selection_end_y >= 0)) {

		DrawSelection(selection_start_x, selection_start_y, selection_end_x, selection_end_y);

	}

}

void SelectTool_drawBuffer(int insert_x, int insert_y, int target) {

	dword color;

	dword offset, r, c;

	dword insert_to_x, insert_to_y;

	if (SelectionTool_buffer != 0) {

		insert_to_x = insert_x + SelectionTool_buffer_c - 1;

		if (insert_to_x >= image.columns)

			insert_to_x = image.columns-1;

		insert_to_y = insert_y + SelectionTool_buffer_r - 1;

		if (insert_to_y >= image.rows)

			insert_to_y = image.rows-1;

		for (r = insert_y; r <= insert_to_y; r++) {

			for (c = insert_x; c <= insert_to_x; c++) {

					offset = calc(SelectionTool_buffer_c * calc(r - insert_y) + calc(c - insert_x)) * 4;

					color = ESDWORD[SelectionTool_buffer + offset];

					if (target == 1)

						image.set_pixel(r, c, color);

					else

						DrawBar(c*zoom.value + canvas.x, r*zoom.value + canvas.y,

							zoom.value, zoom.value, color);

			}

		}

	}

}

void SelectTool_onKeyEvent(dword keycode) {

	dword offset, r, c;

	dword insert_x, insert_y, insert_to_x, insert_to_y;

	if (keycode == SCAN_CODE_KEY_V) {

		if (SelectionTool_buffer != 0) {

			reset_selection();

			selection_moving_started = true;

			selection_start_x = 0;

			selection_end_x = SelectionTool_buffer_c - 1;

			selection_start_y = 0;

			selection_end_y = SelectionTool_buffer_r - 1;

			DrawCanvas();

		}

	}

}

//===================================================//

//                                                   //

//                      DRAWs                        //

//                                                   //

//===================================================//

// target - image (1) or canvas (2)

void DrawLine(int x1, int y1, int x2, int y2, dword color, int target) {

	int dx, dy, signX, signY, error, error2;

	if (1==target) {

		image.draw_line(x1, y1, x2, y2, color);

		return;

	}

	dx = x2 - x1;

	if (dx < 0)

		dx = -dx;

	dy = y2 - y1;

	if (dy < 0)

		dy = -dy;

	if (x1 < x2)

		signX = 1;

	else

		signX = -1;

	if (y1 < y2)

		signY = 1;

	else

		signY = -1;

	error = dx - dy;

	DrawBar(x2*zoom.value + canvas.x, y2*zoom.value + canvas.y,

			zoom.value, zoom.value, color);

	while((x1 != x2) || (y1 != y2))

	{

		DrawBar(x1*zoom.value + canvas.x, y1*zoom.value + canvas.y,

			zoom.value, zoom.value, color);

	   error2 = error * 2;

       if(error2 > calc(-dy))

       {

           error -= dy;

           x1 += signX;

       }

       if(error2 < dx)

       {

           error += dx;

           y1 += signY;

       }

	}

}

void DrawRectangleInCanvas(int x1, int y1, int x2, int y2, dword color, int target) {

	DrawLine(x1, y1, x2, y1, color, target);

	DrawLine(x2, y1, x2, y2, color, target);

	DrawLine(x2, y2, x1, y2, color, target);

	DrawLine(x1, y2, x1, y1, color, target);

}

#define SELECTION_COLOR 0xAAE5EF

void DrawSelection(int x1, int y1, int x2, int y2) {

	int p1x, p1y, p2x, p2y, r, c, old_color, new_color;

	dword offset;

	if (x1 <= x2) {

		p1x = x1;

		p2x = x2;

	}

	else {

		p1x = x2;

		p2x = x1;

	}

	if (y1 <= y2) {

		p2y = y1;

		p1y = y2;

	}

	else {

		p2y = y2;

		p1y = y1;

	}

	for (r = p1y; r >= p2y; r--) {

		for (c = p1x; c <= p2x; c++) {

			if (selection_moving_started) && (SelectTool_pointInSelection(c, r)) {

				offset = calc(SelectionTool_buffer_c * calc(r - selection_start_y) + calc(c - selection_start_x)) * 4;

				old_color = ESDWORD[SelectionTool_buffer + offset];

			}

			else {

				old_color = image.get_pixel(r, c);

			}

			new_color = MixColors(old_color, SELECTION_COLOR, 64);

			DrawBar(c*zoom.value + canvas.x, r*zoom.value + canvas.y,

				zoom.value, zoom.value, new_color);

		}

	}

}