FreeRDP/rdtk/librdtk/rdtk_button.c

120 lines
2.8 KiB
C

/**
* 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.
*/
#include <winpr/assert.h>
#include <rdtk/config.h>
#include "rdtk_font.h"
#include "rdtk_button.h"
int rdtk_button_draw(rdtkSurface* surface, uint16_t nXDst, uint16_t nYDst, uint16_t nWidth,
uint16_t nHeight, rdtkButton* button, const char* text)
{
uint16_t offsetX = 0;
uint16_t offsetY = 0;
uint16_t textWidth = 0;
uint16_t textHeight = 0;
uint16_t fillWidth = 0;
uint16_t fillHeight = 0;
WINPR_ASSERT(surface);
WINPR_ASSERT(button);
WINPR_ASSERT(text);
rdtkEngine* engine = surface->engine;
rdtkFont* font = engine->font;
rdtkNinePatch* ninePatch = button->ninePatch;
rdtk_font_text_draw_size(font, &textWidth, &textHeight, text);
rdtk_nine_patch_draw(surface, nXDst, nYDst, nWidth, nHeight, ninePatch);
if ((textWidth > 0) && (textHeight > 0))
{
fillWidth = nWidth - (ninePatch->width - ninePatch->fillWidth);
fillHeight = nHeight - (ninePatch->height - ninePatch->fillHeight);
offsetX = ninePatch->fillLeft;
offsetY = ninePatch->fillTop;
if (textWidth < fillWidth)
offsetX = ((fillWidth - textWidth) / 2) + ninePatch->fillLeft;
else if (textWidth < ninePatch->width)
offsetX = ((ninePatch->width - textWidth) / 2);
if (textHeight < fillHeight)
offsetY = ((fillHeight - textHeight) / 2) + ninePatch->fillTop;
else if (textHeight < ninePatch->height)
offsetY = ((ninePatch->height - textHeight) / 2);
rdtk_font_draw_text(surface, nXDst + offsetX, nYDst + offsetY, font, text);
}
return 1;
}
rdtkButton* rdtk_button_new(rdtkEngine* engine, rdtkNinePatch* ninePatch)
{
WINPR_ASSERT(engine);
WINPR_ASSERT(ninePatch);
rdtkButton* button = (rdtkButton*)calloc(1, sizeof(rdtkButton));
if (!button)
return NULL;
button->engine = engine;
button->ninePatch = ninePatch;
return button;
}
void rdtk_button_free(rdtkButton* button)
{
free(button);
}
int rdtk_button_engine_init(rdtkEngine* engine)
{
WINPR_ASSERT(engine);
if (!engine->button)
{
engine->button = rdtk_button_new(engine, engine->button9patch);
if (!engine->button)
return -1;
}
return 1;
}
int rdtk_button_engine_uninit(rdtkEngine* engine)
{
WINPR_ASSERT(engine);
if (engine->button)
{
rdtk_button_free(engine->button);
engine->button = NULL;
}
return 1;
}