forked from KolibriOS/kolibrios
319 lines
7.6 KiB
C
319 lines
7.6 KiB
C
// Selection
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int selection_start_x = -1;
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int selection_start_y = -1;
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int selection_end_x = -1;
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int selection_end_y = -1;
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bool selection_active = false;
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dword SelectionTool_buffer = 0;
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dword SelectionTool_buffer_r = 0;
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dword SelectionTool_buffer_c = 0;
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bool selection_moving_started = false;
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int selection_pivot_x = -1;
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int selection_pivot_y = -1;
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void SelectTool_normalizeSelection() {
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int t;
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// Restructuring of the selection coordinates
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if (selection_end_x < selection_start_x) {
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t = selection_start_x;
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selection_start_x = selection_end_x;
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selection_end_x = t;
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}
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if (selection_end_y < selection_start_y) {
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t = selection_end_y;
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selection_end_y = selection_start_y;
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selection_start_y = t;
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}
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}
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void reset_selection_moving() {
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if (selection_moving_started) {
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SelectTool_drawBuffer(selection_start_x, selection_start_y, 1);
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selection_pivot_x = -1;
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selection_pivot_y = -1;
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selection_moving_started = false;
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actionsHistory.saveCurrentState();
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DrawCanvas();
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}
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}
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bool is_selection_moving() {
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return selection_moving_started;
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}
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void reset_selection() {
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reset_selection_moving();
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selection_start_x = -1;
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selection_start_y = -1;
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selection_end_x = -1;
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selection_end_y = -1;
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}
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void SelectTool_activate() {
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reset_selection();
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selection_active = false;
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}
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void SelectTool_deactivate() {
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reset_selection_moving();
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}
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bool SelectTool_pointInSelection(int x, int y) {
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if (x >= selection_start_x) && (x <= selection_end_x) && (y >= selection_start_y) && (y <= selection_end_y)
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return true;
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else
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return false;
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}
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void SelectTool_copyToBuffer() {
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dword offset, r, c;
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if (SelectionTool_buffer != 0)
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free(SelectionTool_buffer);
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SelectionTool_buffer_r = selection_end_y - selection_start_y + 1;
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SelectionTool_buffer_c = selection_end_x - selection_start_x + 1;
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SelectionTool_buffer = malloc(SelectionTool_buffer_r * SelectionTool_buffer_c * 4);
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for (r = selection_start_y; r <= selection_end_y; r++) {
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for (c = selection_start_x; c <= selection_end_x; c++) {
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offset = calc(SelectionTool_buffer_c * calc(r - selection_start_y) + calc(c - selection_start_x)) * 4;
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ESDWORD[SelectionTool_buffer + offset] = image.get_pixel(r, c);
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}
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}
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}
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void SelectTool_onMouseEvent(int mouseX, int mouseY, int lkm, int pkm) {
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int click_x, click_y, dx, dy, m_x, m_y, r, c, color;
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dword pixel;
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m_x = TO_CANVAS_X(mouseX);
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m_y = TO_CANVAS_Y(mouseY);
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if (mouse.down) && (canvas.hovered()) && (!selection_active) {
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if (selection_start_x != -1) && (SelectTool_pointInSelection(m_x, m_y)) {
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if (selection_pivot_x == -1) {
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selection_pivot_x = m_x;
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selection_pivot_y = m_y;
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GetKeys();
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if (!selection_moving_started) && ( !(key_modifier&KEY_LSHIFT) ) {
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for (r = selection_start_y; r <= selection_end_y; r++)
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for (c = selection_start_x; c <= selection_end_x; c++) {
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image.set_pixel(r, c, color2);
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}
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}
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selection_moving_started = true;
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}
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}
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else {
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reset_selection();
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selection_active = true;
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}
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}
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if (selection_pivot_x != -1) {
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dx = m_x - selection_pivot_x;
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dy = m_y - selection_pivot_y;
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if (selection_start_x + dx < 0)
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dx = selection_start_x;
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if (selection_end_x + dx >= image.columns)
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dx = image.columns-1 - selection_end_x;
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if (selection_start_y + dy < 0)
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dy = selection_start_y;
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if (selection_end_y + dy >= image.rows)
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dy = image.rows-1 - selection_end_y;
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selection_start_x += dx;
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selection_end_x += dx;
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selection_start_y += dy;
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selection_end_y += dy;
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selection_pivot_x += dx;
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selection_pivot_y += dy;
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DrawCanvas();
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}
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if (selection_active)
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{
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if (mouseX>canvas.x+canvas.w-zoom.value) mouseX = canvas.x+canvas.w-zoom.value;
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if (mouseY>canvas.y+canvas.h-zoom.value) mouseY = canvas.y+canvas.h-zoom.value;
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if (mouseX<canvas.x) mouseX = canvas.x;
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if (mouseY<canvas.y) mouseY = canvas.y;
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if (mouse.key) {
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selection_end_x = TO_CANVAS_X(mouseX);
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selection_end_y = TO_CANVAS_Y(mouseY);
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if ((selection_start_x < 0) || (selection_start_y < 0)) {
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selection_start_x = TO_CANVAS_X(mouseX);
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selection_start_y = TO_CANVAS_Y(mouseY);
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}
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else {
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DrawCanvas();
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/**if ((calc(TO_CANVAS_X(mouseX)) != selection_end_x)
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|| (calc(TO_CANVAS_Y(mouseY)) != selection_end_y))
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{
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DrawCanvas();
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}*/
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}
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}
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if (mouse.up) {
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selection_active = false;
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SelectTool_normalizeSelection();
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SelectTool_copyToBuffer();
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}
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}
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if (mouse.up) {
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if (selection_pivot_x != -1) {
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selection_pivot_x = -1;
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selection_pivot_y = -1;
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}
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}
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}
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void SelectTool_onCanvasDraw() {
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if ((selection_start_x >= 0) && (selection_start_y >= 0) && (selection_end_x >= 0) && (selection_end_y >= 0)) {
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DrawSelection(selection_start_x, selection_start_y, selection_end_x, selection_end_y);
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}
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}
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void SelectTool_drawBuffer(int insert_x, int insert_y, int target) {
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dword color;
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dword offset, r, c;
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dword insert_to_x, insert_to_y;
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if (SelectionTool_buffer != 0) {
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insert_to_x = insert_x + SelectionTool_buffer_c - 1;
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if (insert_to_x >= image.columns)
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insert_to_x = image.columns-1;
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insert_to_y = insert_y + SelectionTool_buffer_r - 1;
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if (insert_to_y >= image.rows)
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insert_to_y = image.rows-1;
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for (r = insert_y; r <= insert_to_y; r++) {
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for (c = insert_x; c <= insert_to_x; c++) {
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offset = calc(SelectionTool_buffer_c * calc(r - insert_y) + calc(c - insert_x)) * 4;
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color = ESDWORD[SelectionTool_buffer + offset];
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if (TOIMAGE == target)
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image.set_pixel(r, c, color);
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else
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DrawBar(c*zoom.value + canvas.x, r*zoom.value + canvas.y,
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zoom.value, zoom.value, color);
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}
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}
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}
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}
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void SelectTool_onKeyEvent(dword keycode) {
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dword offset, r, c;
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dword insert_x, insert_y, insert_to_x, insert_to_y;
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if (keycode == SCAN_CODE_KEY_V) {
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if (SelectionTool_buffer != 0) {
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reset_selection();
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selection_moving_started = true;
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selection_start_x = 0;
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selection_end_x = SelectionTool_buffer_c - 1;
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selection_start_y = 0;
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selection_end_y = SelectionTool_buffer_r - 1;
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DrawCanvas();
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}
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}
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}
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void DrawSelection(int x1, int y1, int x2, int y2) {
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#define SELECTION_COLOR 0xAAE5EF
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int p1x, p1y, p2x, p2y, r, c, old_color, new_color;
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dword offset;
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if (x1 <= x2) {
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p1x = x1;
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p2x = x2;
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}
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else {
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p1x = x2;
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p2x = x1;
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}
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if (y1 <= y2) {
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p2y = y1;
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p1y = y2;
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}
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else {
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p2y = y2;
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p1y = y1;
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}
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/*
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if (selection_moving_started) {
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SelectTool_drawBuffer(selection_start_x, selection_start_y, 2);
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}
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DrawRectangle(
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selection_start_x*zoom.value+canvas.x,
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selection_start_y*zoom.value+canvas.y,
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selection_end_x-selection_start_x+1*zoom.value-1,
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selection_end_y-selection_start_y+1*zoom.value-1,
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0);
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for (r = p1y; r >= p2y; r--)
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for (c = p1x; c <= p2x; c++) {
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image.pixel_state.set_drawable_state(r, c, false);
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}
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*/
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for (r = p1y; r >= p2y; r--) {
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for (c = p1x; c <= p2x; c++) {
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image.pixel_state.set_drawable_state(r, c, false);
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if (selection_moving_started) && (SelectTool_pointInSelection(c, r)) {
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offset = calc(SelectionTool_buffer_c * calc(r - selection_start_y) + calc(c - selection_start_x)) * 4;
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old_color = ESDWORD[SelectionTool_buffer + offset];
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}
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else {
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old_color = image.get_pixel(r, c);
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}
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new_color = MixColors(old_color, SELECTION_COLOR, 64);
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DrawCanvasPixel(r, c, new_color);
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}
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}
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} |