FreeRDP/rdtk/librdtk/rdtk_label.c

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/**
* RdTk: Remote Desktop Toolkit
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* 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.
*/
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#include <winpr/assert.h>
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#include <rdtk/config.h>
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#include "rdtk_font.h"
#include "rdtk_label.h"
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int rdtk_label_draw(rdtkSurface* surface, uint16_t nXDst, uint16_t nYDst, uint16_t nWidth,
uint16_t nHeight, rdtkLabel* label, const char* text, uint16_t hAlign,
uint16_t vAlign)
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{
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uint16_t offsetX;
uint16_t offsetY;
uint16_t textWidth;
uint16_t textHeight;
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WINPR_ASSERT(surface);
rdtkEngine* engine = surface->engine;
rdtkFont* font = engine->font;
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rdtk_font_text_draw_size(font, &textWidth, &textHeight, text);
if ((textWidth > 0) && (textHeight > 0))
{
offsetX = 0;
offsetY = 0;
if (textWidth < nWidth)
offsetX = ((nWidth - textWidth) / 2);
if (textHeight < nHeight)
offsetY = ((nHeight - textHeight) / 2);
rdtk_font_draw_text(surface, nXDst + offsetX, nYDst + offsetY, font, text);
}
return 1;
}
rdtkLabel* rdtk_label_new(rdtkEngine* engine)
{
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WINPR_ASSERT(engine);
rdtkLabel* label = (rdtkLabel*)calloc(1, sizeof(rdtkLabel));
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if (!label)
return NULL;
label->engine = engine;
return label;
}
void rdtk_label_free(rdtkLabel* label)
{
free(label);
}
int rdtk_label_engine_init(rdtkEngine* engine)
{
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WINPR_ASSERT(engine);
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if (!engine->label)
{
engine->label = rdtk_label_new(engine);
}
return 1;
}
int rdtk_label_engine_uninit(rdtkEngine* engine)
{
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WINPR_ASSERT(engine);
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if (engine->label)
{
rdtk_label_free(engine->label);
engine->label = NULL;
}
return 1;
}