//===================================================//
// //
// DATA //
// //
//===================================================//
_image selection;
enum {
STATE_INACTIVE=0,
STATE_CHOSING=1,
STATE_SELECTED=2
};
int selection_state = STATE_INACTIVE;
int selection_start_x = -1;
int selection_start_y = -1;
int selection_end_x = -1;
int selection_end_y = -1;
int selection_pivot_x = -1;
int selection_pivot_y = -1;
//===================================================//
// //
// CODE //
// //
//===================================================//
void SelectTool_normalizeSelection() {
// Restructuring of the selection coordinates
if (selection_end_x < selection_start_x) {
selection_start_x >< selection_end_x;
}
if (selection_end_y < selection_start_y) {
selection_end_y >< selection_start_y;
}
}
void reset_selection_moving() {
if (STATE_SELECTED == selection_state) {
SelectTool_drawBuffer(selection_start_x, selection_start_y, 1);
selection_pivot_x = -1;
selection_pivot_y = -1;
selection_state = STATE_SELECTED;
actionsHistory.saveCurrentState();
DrawCanvas();
}
}
bool is_selection_moving() {
if (STATE_SELECTED == selection_state) return true;
return false;
}
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_state = STATE_INACTIVE;
}
void SelectTool_deactivate() {
reset_selection_moving();
selection_state = STATE_INACTIVE;
}
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 r, c;
selection_state = STATE_SELECTED;
selection.rows = selection_end_y - selection_start_y + 1;
selection.columns = selection_end_x - selection_start_x + 1;
for (r = selection_start_y; r <= selection_end_y; r++) {
for (c = selection_start_x; c <= selection_end_x; c++) {
selection.set_pixel(r - selection_start_y, c - selection_start_x, image.get_pixel(r, c) );
}
}
}
void SelectTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {
int dx, dy, m_x, m_y;
m_x = TO_CANVAS_X(mouseX);
m_y = TO_CANVAS_Y(mouseY);
if (mouse.down) && (canvas.hovered())
{
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 ( !(key_modifier&KEY_LSHIFT) ) {
DrawBarIcon(selection_start_x, selection_start_y, selection_end_x, selection_end_y, color2, TOIMAGE);
}
selection_state = STATE_SELECTED;
}
}
else {
reset_selection();
selection_state = STATE_CHOSING;
}
}
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 (STATE_CHOSING == selection_state)
{
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<canvas.x) mouseX = canvas.x;
if (mouseY<canvas.y) mouseY = canvas.y;
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) {
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_start_x >= 0) && (selection_start_y >= 0) && (selection_end_x >= 0) && (selection_end_y >= 0)) {
DrawSelection();
}
}
void SelectTool_drawBuffer(int insert_x, int insert_y, int target) {
dword color;
dword r, c;
dword insert_to_x, insert_to_y;
if (STATE_INACTIVE != selection_state) {
insert_to_x = insert_x + selection.columns - 1;
if (insert_to_x >= image.columns)
insert_to_x = image.columns-1;
insert_to_y = insert_y + selection.rows - 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++) {
color = selection.get_pixel(r - insert_y, c - insert_x);
if (TOIMAGE == target)
image.set_pixel(r, c, color);
else
DrawCanvasPixel(r, c, color);
}
}
}
}
void SelectTool_onKeyEvent(dword keycode) {
dword r, c;
if (keycode == SCAN_CODE_KEY_V) {
if (STATE_SELECTED == selection_state) {
reset_selection();
selection_state = STATE_SELECTED;
selection_start_x = 0;
selection_end_x = selection.columns - 1;
selection_start_y = 0;
selection_end_y = selection.rows - 1;
DrawCanvas();
}
}
}
void DrawSelection() {
#define SELECTION_COLOR 0xAAE5EF
int p1x, p1y, p2x, p2y, r, c, old_color, new_color;
if (selection_start_x <= selection_end_x) {
p1x = selection_start_x;
p2x = selection_end_x;
}
else {
p1x = selection_end_x;
p2x = selection_start_x;
}
if (selection_start_y <= selection_end_y) {
p2y = selection_start_y;
p1y = selection_end_y;
}
else {
p2y = selection_end_y;
p1y = selection_start_y;
}
for (r = p1y; r >= p2y; r--) {
for (c = p1x; c <= p2x; c++) {
image.pixel_state.set_drawable_state(r, c, false);
if (STATE_SELECTED == selection_state) && (SelectTool_pointInSelection(c, r)) {
old_color = selection.get_pixel(r - selection_start_y, c - selection_start_x);
}
else {
old_color = image.get_pixel(r, c);
}
new_color = MixColors(old_color, SELECTION_COLOR, 64);
DrawCanvasPixel(r, c, new_color);
}
}
}