| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * Copyright (C) 2016 Mopria Alliance, Inc. |
| * Copyright (C) 2013 Hewlett-Packard Development Company, L.P. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <math.h> |
| #include "lib_printable_area.h" |
| #include "wprint_debug.h" |
| #include "../plugins/media.h" |
| |
| #define TAG "printable_area" |
| |
| void printable_area_get(wprint_job_params_t *job_params, float top_margin, |
| float left_margin, float right_margin, float bottom_margin) { |
| if (job_params == NULL) return; |
| |
| job_params->printable_area_width = job_params->printable_area_height = 0.0f; |
| job_params->width = job_params->height = 0.0f; |
| job_params->page_top_margin = job_params->page_bottom_margin = 0.0f; |
| job_params->page_right_margin = job_params->page_left_margin = 0.0f; |
| |
| job_params->page_width = 0.0f; |
| job_params->page_height = 0.0f; |
| int i; |
| for (i = 0; i < SUPPORTED_MEDIA_SIZE_COUNT; i++) { |
| if (job_params->media_size == SupportedMediaSizes[i].media_size) { |
| job_params->page_width = SupportedMediaSizes[i].WidthInInches / 1000; |
| job_params->page_height = SupportedMediaSizes[i].HeightInInches / 1000; |
| } |
| } |
| |
| // Threshold value for catering slight variation b/w source dims and page dims |
| const float PAGE_SIZE_EPSILON = 0.04f; |
| if (fabsf(job_params->source_width - job_params->page_width) < PAGE_SIZE_EPSILON && |
| fabsf(job_params->source_height - job_params->page_height) < PAGE_SIZE_EPSILON) { |
| top_margin = left_margin = right_margin = bottom_margin = 0.0f; |
| } |
| |
| // don't adjust for margins if job is PCLm. dimensions of image will not |
| // match (will be bigger than) the dimensions of the page size and a corrupt image will render |
| // in genPCLm |
| if (job_params->pcl_type == PCLm) { |
| if (job_params->borderless) { |
| job_params->printable_area_width = (unsigned int) _MI_TO_PIXELS( |
| job_params->page_width * 1000, job_params->pixel_units); |
| job_params->printable_area_height = (unsigned int) _MI_TO_PIXELS( |
| job_params->page_height * 1000, job_params->pixel_units); |
| } else { |
| job_params->printable_area_width = |
| (unsigned int) _MI_TO_PIXELS(job_params->page_width * 1000, |
| job_params->pixel_units) |
| - floorf(left_margin * (float) job_params->pixel_units) |
| - floorf(right_margin * (float) job_params->pixel_units); |
| job_params->printable_area_height = |
| (unsigned int) _MI_TO_PIXELS(job_params->page_height * 1000, |
| job_params->pixel_units) |
| - floorf(top_margin * (float) job_params->pixel_units) |
| - floorf(bottom_margin * (float) job_params->pixel_units); |
| } |
| } else { |
| job_params->printable_area_width = (unsigned int) floorf(((job_params->page_width - |
| (left_margin + right_margin)) * (float)job_params->pixel_units)); |
| job_params->printable_area_height = (unsigned int) floorf(((job_params->page_height - |
| (top_margin + bottom_margin)) * (float)job_params->pixel_units)); |
| } |
| |
| job_params->page_top_margin = top_margin; |
| job_params->page_left_margin = left_margin; |
| job_params->page_right_margin = right_margin; |
| job_params->page_bottom_margin = bottom_margin; |
| |
| if (!job_params->borderless) { |
| if (job_params->job_top_margin > top_margin) { |
| job_params->print_top_margin = floorf( |
| ((job_params->job_top_margin - top_margin) * (float) job_params->pixel_units)); |
| } else { |
| job_params->print_top_margin = floorf(((top_margin) * (float) job_params->pixel_units)); |
| } |
| if (job_params->job_left_margin > left_margin) { |
| job_params->print_left_margin = floorf(((job_params->job_left_margin - left_margin) * |
| (float) job_params->pixel_units)); |
| } else { |
| job_params->print_left_margin = floorf( |
| ((left_margin) * (float) job_params->pixel_units)); |
| } |
| if (job_params->job_right_margin > right_margin) { |
| job_params->print_right_margin = floorf(((job_params->job_right_margin - right_margin) * |
| (float) job_params->pixel_units)); |
| } else { |
| job_params->print_right_margin = floorf( |
| ((right_margin) * (float) job_params->pixel_units)); |
| } |
| if (job_params->job_bottom_margin > bottom_margin) { |
| job_params->print_bottom_margin = floorf( |
| ((job_params->job_bottom_margin - bottom_margin) * |
| (float) job_params->pixel_units)); |
| } else { |
| job_params->print_bottom_margin = floorf( |
| ((bottom_margin) * (float) job_params->pixel_units)); |
| } |
| } |
| |
| job_params->width = (job_params->printable_area_width - |
| (job_params->print_left_margin + job_params->print_right_margin)); |
| job_params->height = (job_params->printable_area_height - |
| (job_params->print_top_margin + job_params->print_bottom_margin)); |
| |
| LOGD("printable_area_get(): source dimensions: %fx%f", |
| job_params->source_width, job_params->source_height); |
| LOGD("printable_area_get(): page dimensions: %fx%f", |
| job_params->page_width, job_params->page_height); |
| } |
| |
| void printable_area_get_default_margins(const wprint_job_params_t *job_params, |
| const printer_capabilities_t *printer_cap, |
| float *top_margin, |
| float *left_margin, float *right_margin, |
| float *bottom_margin) { |
| if ((job_params == NULL) || (printer_cap == NULL)) { |
| return; |
| } |
| |
| bool useDefaultMargins = true; |
| |
| if (job_params->borderless) { |
| useDefaultMargins = false; |
| switch (job_params->pcl_type) { |
| case PCLm: |
| case PCLPWG: |
| *top_margin = 0.0f; |
| *left_margin = 0.0f; |
| *right_margin = 0.0f; |
| *bottom_margin = 0.00f; |
| break; |
| default: |
| *top_margin = -0.065f; |
| *left_margin = -0.10f; |
| *right_margin = -0.118f; |
| *bottom_margin = -0.10f; |
| break; |
| } |
| } else { |
| switch (job_params->pcl_type) { |
| case PCLm: |
| *top_margin = (float) printer_cap->printerTopMargin / 2540; |
| *bottom_margin = (float) printer_cap->printerBottomMargin / 2540; |
| *left_margin = (float) printer_cap->printerLeftMargin / 2540; |
| *right_margin = (float) printer_cap->printerRightMargin / 2540; |
| useDefaultMargins = false; |
| break; |
| case PCLPWG: |
| *top_margin = 0.0f; |
| *left_margin = 0.0f; |
| *right_margin = 0.0f; |
| *bottom_margin = 0.00f; |
| useDefaultMargins = false; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| if (useDefaultMargins) { |
| if (!printer_cap->inkjet) { |
| // default laser margins |
| *top_margin = 0.2f; |
| *left_margin = 0.25f; |
| *right_margin = 0.25f; |
| *bottom_margin = 0.2f; |
| } else { |
| // default inkjet margins |
| *top_margin = 0.125f; |
| *left_margin = 0.125f; |
| *right_margin = 0.125f; |
| if ((job_params->duplex != DUPLEX_MODE_NONE) || !printer_cap->borderless) { |
| *bottom_margin = 0.5f; |
| } else { |
| *bottom_margin = 0.125f; |
| } |
| } |
| } |
| |
| LOGD("printable_area_get_default_margins(): top_margin=%f, left_margin=%f, " |
| "right_margin=%f, bottom_margin=%f", *top_margin, *left_margin, *right_margin, |
| *bottom_margin); |
| } |
